CN109946037B - Blocking moving device for simulating bracket interference quantity change and application - Google Patents
Blocking moving device for simulating bracket interference quantity change and application Download PDFInfo
- Publication number
- CN109946037B CN109946037B CN201910338482.4A CN201910338482A CN109946037B CN 109946037 B CN109946037 B CN 109946037B CN 201910338482 A CN201910338482 A CN 201910338482A CN 109946037 B CN109946037 B CN 109946037B
- Authority
- CN
- China
- Prior art keywords
- block
- bracket
- connecting rod
- ring
- guide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 41
- 230000008859 change Effects 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000011156 evaluation Methods 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010219 correlation analysis Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Landscapes
- Transmission Devices (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a blocking moving device for simulating the change of a bracket interference amount and application thereof, belongs to the field of test aerodynamics, and aims to improve the current situations that the bracket interference evaluation auxiliary means of the existing two-step method are not more, and the correlation of resistance data of different wind tunnel equipment and bracket forms is difficult to analyze. The device comprises a mounting unit, a linear motion realizing unit, a guiding limiting unit, a blocking unit and a control system, wherein the mounting unit comprises a bracket connecting ring, a direct head clamping ring, a connecting rod and a limiting clamping block which are connected with a bracket, and the bracket connecting ring and the direct head clamping ring are respectively in a circular ring shape. The method and the device are applied to wind tunnel tests, and on the basis of accuracy and reliability, the corresponding relation between the bottom pressure and the model resistance is obtained as soon as possible through a small amount of test train number, so that analysis of the bracket interference variation and analysis of the resistance data correlation of different wind tunnel equipment and bracket forms are facilitated, and the method and the device have higher application value and are favorable for further improving the accuracy of the measurement results of the wind tunnel tests.
Description
Technical Field
The invention relates to the field of test aerodynamics, in particular to a blocking moving device for simulating the change of a bracket interference amount and application thereof.
Background
The tail support force measurement is one of the main modes of the high-speed wind tunnel test, and a support system is a necessary test device. Due to the existence of the bracket system, the deformation of the back body bypass flow field and the change of bottom pressure distribution are brought, and the accurate prediction of the front resistance, the cruising efficiency and the like of the model is directly affected. At present, the interference of a bracket is usually measured by an auxiliary supporting mode, a two-step test is adopted, and correction is carried out after the test; however, the test method only considers the macroscopic influence of the bracket interference on the aerodynamic characteristics of the model, and ignores the detailed influence of the bottom pressure change, the model post-body flow characteristics and the like. The whole set of test equipment including the bracket is further considered, and as the bracket, the flow field, the hole wall, the wave reflection and other data difference factors among different equipment are more, the specific magnitude of the influence of the bracket interference on the data accuracy cannot be accurately estimated, the difficulty of correlation analysis of test data among different test equipment is increased, and the large-scale use of the test data is limited to a certain extent.
To this end, a new apparatus and/or method is urgently needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims at: aiming at the current situations that the support interference evaluation auxiliary means is not more and the correlation of resistance data in different wind tunnel equipment and support forms is difficult to analyze, the device for simulating the change of the support interference amount and the application thereof are provided. The method and the device are applied to wind tunnel tests, and on the basis of accuracy and reliability, the corresponding relation between the bottom pressure and the model resistance is obtained as soon as possible through a small amount of test train number, so that analysis of the bracket interference variation and analysis of the resistance data correlation of different wind tunnel equipment and bracket forms are facilitated, and the method and the device have higher application value and are favorable for further improving the accuracy of the measurement results of the wind tunnel tests.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the blocking moving device for simulating the change of the bracket interference comprises a mounting unit, a linear motion realizing unit, a guide limiting unit, a blocking unit and a control system;
the mounting unit comprises a bracket connecting ring, a direct head clamping ring, a connecting rod and a limiting clamping block, wherein the bracket connecting ring, the direct head clamping ring and the limiting clamping block are connected with the bracket, the bracket connecting ring and the direct head clamping ring are respectively in a circular ring shape, the bracket connecting ring is arranged in parallel with the direct head clamping ring, the number of the connecting rods is at least two, and the bracket connecting ring and the direct head clamping ring are connected into a whole through the connecting rod to form the mounting unit;
one end of the mounting unit is connected with a flange of the bracket through a bracket connecting ring, the other end of the mounting unit is mounted on the conical surface of the direct head through a direct head clamping ring, and the bracket connecting ring and the direct head clamping ring are connected through a connecting rod to form a mounting platform;
the linear motion realizing unit comprises at least two bearings, a connecting rod and a driving assembly, wherein the bearing is connected with one connecting rod, the connecting rod can provide support for the bearing, the screw is movably connected with the bearing, the screw can rotate relative to the bearing, the driving assembly is connected with the screw, the driving assembly can provide power for the screw to rotate relative to the bearing, the driving assembly is connected with the control system, and the screw nut is arranged on the screw;
the guide limiting unit comprises a first guide rail, a sliding block, a first block connecting rod, a second guide rail and a second block connecting rod, wherein the first guide rail is arranged on a connecting rod connected with a bearing, the sliding block is connected with the first guide rail, the sliding block is connected with a screw nut, the screw nut can drive the sliding block to move relative to the first guide rail, the sliding block is connected with the block unit through the first block connecting rod, the sliding block can provide power for the movement of the block unit, the second guide rail is connected with a connecting rod, and two ends of the second block connecting rod are respectively connected with the second guide rail and the block unit, and the second guide rail and the second block connecting rod can play a guide role on the block unit;
the block unit comprises a block and a sliding sleeve, wherein the first block connecting rod and the second block connecting rod are respectively connected with the block, and the sliding sleeve is arranged on the block.
The installation unit further comprises two limiting clamping blocks, wherein the two limiting clamping blocks are respectively arranged on the connecting rod, the clamping groove matched with the connecting rod is formed in the support connecting ring, the connecting rod can be clamped in the clamping groove of the support connecting ring, and the limiting clamping blocks are respectively connected with the connecting rod and the support connecting ring and can be clamped with the connecting rod and the support connecting ring.
The bracket connecting ring is connected with the flange of the bracket through screws.
The driving assembly comprises a stepping motor, the stepping motor is connected with the screw rod, and the stepping motor is connected with the control system.
The driving assembly further comprises a coupler, and the stepping motor is connected with the screw rod through the coupler.
The first guide rail is a square guide rail.
The second guide rail is a drawer guide rail.
The blocking unit further comprises a copper sleeve, and the copper sleeve is arranged in the sliding sleeve.
The device is applied to the estimation of the bracket interference variation of the wind tunnel test.
The method comprises the following steps:
(1) Installing the blocking moving device;
(2) In the blowing process, the control system sends a signal to the driving assembly, and the driving assembly drives the blocking block to move to a set position; according to the setting requirement, the driving assembly drives the blocking piece to move for a plurality of times until the blocking piece position moves to meet the setting requirement;
(3) In the block moving process of the step 2, measuring the resistance of the whole model machine through a balance, and measuring the bottom pressure of the model through a bottom pressure pipe in a tail cavity of the model; and (3) obtaining corresponding model bottom pressure and model total machine resistance based on the movement of the blocking in the step (2), and fitting a functional relation between the model bottom pressure and the model total machine resistance.
In the step 2, the blocking block moves from far to near towards the bracket, stays for a set time after moving in place, and then moves next time.
Analysis is carried out by means of bottom pressure and model resistance, wherein the bottom pressure change is a reaction of a bracket interference state; at the same time, the surface pressure distribution of the model rear body is affected by the occlusion forward effect of the bracket system, so that the shape resistance of the model rear body is changed. Thus, the correlation between the model posterior shape resistance and the bottom pressure may reflect the amount of stent disturbance. Ignoring the impact of the blocking forward effect on the shape resistance of the forward fuselage and the friction of the model surface, the total machine resistance may represent the shape resistance of the aft body. Therefore, the block moving device simulating the change of the bracket interference quantity is developed, the model resistance measurement of the variable bottom pressure is beneficial to analyzing the influence of the bracket interference on the bottom detour characteristic, and the block moving device has important significance for assisting the two-step bracket interference assessment and guiding the resistance data correlation analysis of different wind tunnel equipment and bracket forms.
Considering that the support rod has a longer fixed diameter section, the method adopts the form that the blocking block slides along the support rod, and the stepping motor and the lead screw drive and the guide rail guide transmission are adopted to simulate the change of the interference quantity of the support. The main idea of the measuring method is as follows: the device such as step motor, lead screw, guide rail are installed on the direct head, utilize step motor to realize the real-time control of putty position, reduce the influence of whole mechanism to the flow field through the putty mobile device of this application, accomplish motor rotary motion to putty rectilinear motion's conversion based on lead screw, guide rail and putty copper sheathing, realize becoming the bottom pressure resistance and measure.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
(1) The blocking moving device comprises a mounting unit, a linear motion realizing unit, a guiding and limiting unit, a blocking unit and a control system, and is simple in overall structure and low in cost; the installation mode of surrounding the straight joint and the supporting rod is adopted, so that the influence of the blocking moving device on the main air flow of the test section can be reduced, and the accuracy of the bottom pressure and the resistance test of the tail cavity is ensured; the stepping motor is adopted, so that the accurate control of the axial displacement of the blocking can be realized, the corresponding relation between the bottom pressure and the model resistance can be obtained through one-time starting of the wind tunnel, and the testing efficiency and accuracy are improved;
(2) According to the axial movement perpendicularity is guaranteed through the copper sleeve and the guide rod, no other clamping caused by loading of the mechanism is generated, and the axial movement perpendicularity detection device is high in practicality and safety;
(3) The linear motion realizing unit ensures driving transmission through the coupler, effectively reduces coaxiality deviation caused by installation deviation of the motor shaft and the screw rod, is convenient to control and can meet different test conditions;
(4) The square guide rail and the drawer guide rail in the guide limiting unit are respectively arranged on the upper connecting rod and the lower connecting rod of the mounting unit, guide rails with different strokes can be selected according to actual requirements of equipment, and the universality is high;
(5) The novel multifunctional electric power generator is ingenious in conception, reasonable in design, simple in structure, convenient to use and high in application value.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
fig. 1 is a schematic diagram of the overall structure of the block moving device in embodiment 1.
Fig. 2 is a schematic view of the overall structure of the block moving device in fig. 1 at another angle.
Fig. 3 is a schematic diagram showing connection between a stepper motor and a lead screw in embodiment 1.
Fig. 4 is a schematic diagram showing the connection of the lead screw nut and the square guide rail in embodiment 1.
Fig. 5 is a graph showing the relationship between the bottom pressure and the model total machine resistance obtained after one blowing test of the block moving device in example 1.
Fig. 6 is a schematic view of the assembly of the block mover with the forward section of the bracket, the straight joint and the strut.
The marks in the figure: 1. step motor, 2, spacing fixture block, 3, square guide rail, 4, slider, 5, lead screw nut, 6, second block connecting rod, 7, lead screw, 8, block, 9, sliding sleeve, 10, copper sheathing, 11, first block connecting rod, 12, direct head snap ring, 13, drawer guide rail, 14, connecting rod, 15, bracket connection ring, 16, motor cabinet, 17, shaft coupling, 18, bearing frame, 19, lead screw nut seat, 20, bracket anterior segment, 21, straight joint, 22, branch.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Example 1
As shown in the figure, the embodiment provides a block moving device applied to the change of the simulated bracket interference of a 2.4-meter transonic wind tunnel, the axial moving stroke of the block moving device is 770mm, and the block moving device covers more than half of the length of the equal-diameter section of a support rod (as shown in fig. 6, the block moving device of the embodiment is assembled with the front section of the bracket, a straight joint and the support rod, and the front section of the bracket, the straight joint and the support rod are sequentially connected into a whole). The blocking moving device adopts a modularized design and is divided into four main parts, namely an installation unit, a linear motion realizing unit, a guiding limiting unit and a blocking unit, and further comprises a control system matched with the linear motion realizing unit.
In this embodiment, the installation unit is including being used for the support go-between that links to each other with the support anterior segment, direct snap ring, connecting rod, spacing fixture block, and connecting rod, spacing fixture block are two respectively, and support go-between, direct snap ring are the ring respectively, and support go-between and direct snap ring parallel arrangement, and the connecting rod adopts two, is connected as an organic wholely and constitutes the installation unit through the connecting rod between support go-between and the direct snap ring. In this structure, be provided with on the support go-between with connecting rod matched with draw-in groove, the connecting rod joint is in the draw-in groove of support go-between to link rod and support go-between joint together through spacing fixture block joint, and the connecting rod sets up in the outside of direct head snap ring respectively.
In the device, a bracket connecting ring is tightly propped against a flange at the front section of a bracket through a screw, and a direct head clamping ring is tightly clamped on the conical surface of a direct joint through an internal conical surface; one end of the connecting rod is clamped in a corresponding groove of the bracket connecting ring, the other end of the connecting rod is tightly propped against the direct head clamping ring through a screw, and the near bracket end of the connecting rod is further tightly pressed through the two limiting clamping blocks, so that an installation platform is formed. In this structure, the flange of support is passed through the support go-between and is linked to one end of installation unit, and the other end passes through the direct snap ring to be installed in the conical surface of direct to form mounting platform through connecting rod connection support go-between and direct snap ring.
In this embodiment, the linear motion realizing unit includes bearing, lead screw, drive assembly, motor cabinet, lead screw nut that is used for providing support for drive assembly. In this embodiment, the drive assembly includes step motor, shaft coupling, and step motor passes through the shaft coupling and links to each other with the lead screw, and step motor links to each other with control system, and step motor passes through the motor cabinet and links to each other with the installation unit. The two bearings are connected with one connecting rod. Two ends of the screw rod are respectively and movably connected with the bearings, the screw rod nut is arranged on the screw rod, and the nut is positioned between the two bearings. In other words, both ends of the lead screw in the linear motion realizing unit are all installed on the installing unit, both ends are provided with bearings, the lead screw penetrates through the middle, and the starting end is provided with the motor base and the stepping motor. In the embodiment, bearings are arranged at two ends of a screw rod and are provided with bearing blocks, the bearing blocks at the end of a near bracket are tightly propped against a limiting clamping block through screws, and the bearing blocks at the end of a far bracket are arranged on a connecting rod through independent fixing seats. The connection mode between the stepping motor and the screw rod is shown in fig. 3, and the connection mode sequentially comprises a motor base, a shaft coupling, a bearing seat and a limiting clamping block, so that the conversion from the rotary motion of the motor to the linear motion of the screw rod nut can be realized. In the structure, the motor shaft of the stepping motor is connected with the screw rod through the coupler, so that movement blocking caused by different shafts of the mechanism is avoided.
In this embodiment, the guiding and limiting unit is composed of a first guide rail, a sliding block, a first block connecting rod, a second guide rail and a second block connecting rod. The first guide rail is arranged on a connecting rod connected with the bearing, the sliding block is connected with the first guide rail and the screw nut, the sliding block is connected with the block unit through a first block connecting rod, the second guide rail is connected with the other connecting rod, and two ends of the second block connecting rod are respectively connected with the second guide rail and the block unit.
In this embodiment, the first rail is a square rail, and the second rail is a drawer rail. The guide limiting unit is arranged on the upper plane and the lower plane of the direct head, the upper plane is a square guide rail, the starting end of the square guide rail is connected with the screw nut, and the tail end of the square guide rail is connected with the block through the sliding block and the block connecting rod; the lower plane is a drawer guide rail, and the tail end of the drawer guide rail is connected with the blocking block through a second blocking block connecting rod. More specifically, the square guide rail and the drawer guide rail are tightly propped against the installation unit through screws, one connecting rod is tightly propped against the square guide rail through screws, and the other connecting rod is tightly propped against the drawer guide rail through screws. The connection mode of the sliding block and the screw nut is shown in fig. 4, and the connection mode is that the sliding block is connected with the screw nut seat through a first block connecting rod.
In this embodiment, the blocking unit includes the sprue, sliding sleeve, copper sheathing, and first sprue connecting rod, second sprue connecting rod link to each other with the sprue respectively, and sliding sleeve sets up on the sprue, and the copper sheathing sets up in sliding sleeve. The tail end of the blocking unit is connected with a sliding sleeve sleeved on the supporting rod; the copper sleeve is embedded between the sliding sleeve of the block unit and the support rod, so that the block unit can slide smoothly along the axial direction of the support rod. More specifically, the sliding sleeve is sleeved outside the equal-diameter section of the support rod, and a copper sleeve is arranged in the sliding sleeve and used for guaranteeing the verticality of the mechanism moving along the axial direction of the support rod, and lubricating with butter is needed before use, so that the phenomenon that the mechanism is blocked after being loaded in the moving and measuring process is avoided. The sliding sleeve is propped tightly by the screw, and the first block connecting rod, the second block connecting rod and the block are propped tightly by the screw.
In order to achieve better technical effects, the mounting unit comprises a limiting device (namely, a limiting clamping block in the embodiment forms the limiting device), and the limiting device compresses the connecting rod through the limiting clamping block mounted on the support connecting ring, so that accurate positioning of the mounting unit is realized.
The workflow of the block mobile device of the present application is as follows:
(1) The blocking unit is installed on the ground and comprises a blocking block, a sliding sleeve and a copper sleeve;
(2) The bracket connecting ring is arranged on the bracket flange, the bracket flange is tightly propped up by a screw, the direct head clamping ring is arranged on the direct head conical surface, and then the connecting rod and the limiting clamping block are arranged;
(3) Mounting a stepping motor, a lead screw and a lead screw nut;
(4) The square guide rail and the drawer guide rail are arranged on the connecting rod, the square guide rail and the drawer guide rail are tightly propped up by a screw, and the sliding block and the first block connecting rod are further arranged;
(5) And (3) tightly pushing the first blocking connecting rod and the second blocking connecting rod against the blocking unit which is installed in the step (1) through screws.
Fig. 6 shows a schematic view of the assembly of the block-moving device with the front section of the bracket, the straight joint and the strut.
After the installation is completed according to the steps, a model resistance measurement test of variable bottom pressure can be performed, and the test process is as follows.
Controlling the stepping motor to provide driving force through an external electric pulse signal; in the one-time blowing process, the blocking block moves from far to near by 770mm in total from far to near, is divided into 8 steps by the displacement, delays for 3s after each step moves in place, and starts to move to the next step. In the blowing process, the resistance of the whole model machine is measured through a balance, and meanwhile, the bottom pressure of the model is measured through bottom pressure pipes in a tail cavity of the model (the total number of the bottom pressure pipes is 4, the distance of the bottom pressure pipes penetrating into the tail cavity is greater than the radius of a supporting rod in the tail cavity), one bottom pressure pipe is arranged at the top end of the supporting rod, other bottom pressure pipes are sequentially spaced by 90 degrees around the circumference of the supporting rod, and the arithmetic average value of the pressures of the four bottom pressure pipes is used as a final value).
In this embodiment, 8 sets of values of the model bottom pressure (ratio of bottom pressure to far-field static pressure) and the model total machine resistance (dimensionless) corresponding to 8 steps are obtained, and a linear relationship between the bottom pressure and the model total machine resistance can be further fitted, as shown in fig. 5.
Test results show that by adopting the method, the corresponding relation between the bottom pressure and the model resistance can be obtained rapidly and accurately through a small number of test train numbers, and analysis of bracket interference variation and analysis of resistance data correlation of different wind tunnel equipment and bracket forms are facilitated. Meanwhile, based on the test method, the obtained data has small systematic error, and the test result is accurate and reliable.
The above description is only one embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention should be included in the protection scope of the present invention. I.e., the invention extends to any novel one, or any novel combination, of the features disclosed in this specification, and to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (9)
1. The blocking moving device simulating the change of the bracket interference is characterized by comprising a mounting unit, a linear motion realizing unit, a guide limiting unit, a blocking unit and a control system;
the mounting unit comprises a bracket connecting ring, a direct head clamping ring, a connecting rod and a limiting clamping block, wherein the bracket connecting ring, the direct head clamping ring and the limiting clamping block are connected with the bracket, the bracket connecting ring and the direct head clamping ring are respectively in a circular ring shape, the bracket connecting ring is arranged in parallel with the direct head clamping ring, the number of the connecting rods is at least two, and the bracket connecting ring and the direct head clamping ring are connected into a whole through the connecting rod to form the mounting unit;
one end of the mounting unit is connected with a flange of the bracket through a bracket connecting ring, the other end of the mounting unit is mounted on the conical surface of the direct head through a direct head clamping ring, and the bracket connecting ring and the direct head clamping ring are connected through a connecting rod to form a mounting platform;
the linear motion realizing unit comprises at least two bearings, a connecting rod and a driving assembly, wherein the bearing is connected with one connecting rod, the connecting rod can provide support for the bearing, the screw is movably connected with the bearing, the screw can rotate relative to the bearing, the driving assembly is connected with the screw, the driving assembly can provide power for the screw to rotate relative to the bearing, the driving assembly is connected with the control system, and the screw nut is arranged on the screw;
the guide limiting unit comprises a first guide rail, a sliding block, a first block connecting rod, a second guide rail and a second block connecting rod, wherein the first guide rail is arranged on a connecting rod connected with a bearing, the sliding block is connected with the first guide rail, the sliding block is connected with a screw nut, the screw nut can drive the sliding block to move relative to the first guide rail, the sliding block is connected with the block unit through the first block connecting rod, the sliding block can provide power for the movement of the block unit, the second guide rail is connected with a connecting rod, and two ends of the second block connecting rod are respectively connected with the second guide rail and the block unit, and the second guide rail and the second block connecting rod can play a guide role on the block unit;
the block unit comprises a block and a sliding sleeve, the first block connecting rod and the second block connecting rod are respectively connected with the block, and the sliding sleeve is arranged on the block;
the first guide rail is a square guide rail, and the second guide rail is a drawer guide rail.
2. The blocking moving device according to claim 1, wherein the mounting unit further comprises two limiting clamping blocks, the connecting rod and the limiting clamping blocks are respectively, the bracket connecting ring is provided with clamping grooves matched with the connecting rod, the connecting rod can be clamped in the clamping grooves of the bracket connecting ring, and the limiting clamping blocks are respectively connected with the connecting rod and the bracket connecting ring and can clamp the connecting rod with the bracket connecting ring.
3. The block movement device of claim 2, wherein the bracket attachment ring is attached to the flange of the bracket by screws.
4. The block movement device of claim 1, wherein the drive assembly comprises a stepper motor coupled to a lead screw, the stepper motor coupled to a control system.
5. The block movement device of claim 4, wherein the drive assembly further comprises a coupling, and wherein the stepper motor is coupled to the lead screw via the coupling.
6. The block movement device of any one of claims 1-5, wherein the block unit further comprises a copper sleeve disposed within the sliding sleeve.
7. The use of a block mobile device according to claims 1-5, in the evaluation of the amount of bracket interference variation of wind tunnel tests.
8. The use according to claim 7, characterized by the steps of:
(1) Installing the blocking moving device;
(2) In the blowing process, the control system sends a signal to the driving assembly, and the driving assembly drives the blocking block to move to a set position; according to the setting requirement, the driving assembly drives the blocking piece to move for a plurality of times until the blocking piece position moves to meet the setting requirement;
(3) In the block moving process of the step 2, measuring the resistance of the whole model machine through a balance, and measuring the bottom pressure of the model through a bottom pressure pipe in a tail cavity of the model; and (3) obtaining corresponding model bottom pressure and model total machine resistance based on the movement of the blocking in the step (2), and fitting a functional relation between the model bottom pressure and the model total machine resistance.
9. The use according to claim 8, wherein in step 2, the block is moved from far to near toward the stent, and the block stays in place for a set time after the movement, and then moves next.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338482.4A CN109946037B (en) | 2019-04-25 | 2019-04-25 | Blocking moving device for simulating bracket interference quantity change and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338482.4A CN109946037B (en) | 2019-04-25 | 2019-04-25 | Blocking moving device for simulating bracket interference quantity change and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109946037A CN109946037A (en) | 2019-06-28 |
| CN109946037B true CN109946037B (en) | 2024-01-30 |
Family
ID=67016235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910338482.4A Active CN109946037B (en) | 2019-04-25 | 2019-04-25 | Blocking moving device for simulating bracket interference quantity change and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109946037B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729763B (en) * | 2021-04-06 | 2021-06-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Symmetric pasting quantitative pressurizing device for wind tunnel balance |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103849A (en) * | 1993-10-05 | 1995-04-21 | Mitsubishi Heavy Ind Ltd | Model support |
| JP2003161671A (en) * | 2001-11-26 | 2003-06-06 | Tech Res & Dev Inst Of Japan Def Agency | Dynamic wind tunnel test device |
| CN205449433U (en) * | 2016-01-04 | 2016-08-10 | 空气动力学国家重点实验室 | Experimental strutting arrangement of transonic wind tunnel |
| CN106762149A (en) * | 2017-01-17 | 2017-05-31 | 中国科学技术大学 | A kind of hypersonic inlet self-starting energy force checking device |
| CN107830985A (en) * | 2017-10-11 | 2018-03-23 | 中国科学院力学研究所 | A kind of air intake duct determines congestion degree self-starting experimental rig |
| CN108072502A (en) * | 2017-12-07 | 2018-05-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of test method of wind-tunnel support interference measurement |
| CN209559459U (en) * | 2019-04-25 | 2019-10-29 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of sprue mobile device of simulation support interferences amount variation |
-
2019
- 2019-04-25 CN CN201910338482.4A patent/CN109946037B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103849A (en) * | 1993-10-05 | 1995-04-21 | Mitsubishi Heavy Ind Ltd | Model support |
| JP2003161671A (en) * | 2001-11-26 | 2003-06-06 | Tech Res & Dev Inst Of Japan Def Agency | Dynamic wind tunnel test device |
| CN205449433U (en) * | 2016-01-04 | 2016-08-10 | 空气动力学国家重点实验室 | Experimental strutting arrangement of transonic wind tunnel |
| CN106762149A (en) * | 2017-01-17 | 2017-05-31 | 中国科学技术大学 | A kind of hypersonic inlet self-starting energy force checking device |
| CN107830985A (en) * | 2017-10-11 | 2018-03-23 | 中国科学院力学研究所 | A kind of air intake duct determines congestion degree self-starting experimental rig |
| CN108072502A (en) * | 2017-12-07 | 2018-05-25 | 中国航空工业集团公司哈尔滨空气动力研究所 | A kind of test method of wind-tunnel support interference measurement |
| CN209559459U (en) * | 2019-04-25 | 2019-10-29 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of sprue mobile device of simulation support interferences amount variation |
Non-Patent Citations (1)
| Title |
|---|
| 高速风洞中大型飞机典型支撑方式干扰特性研究;***, 刘大伟, 许新, 陈德华, 魏志;空气动力学学报(第01期);68-74 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109946037A (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104266837B (en) | Ball screw performance testing testbed based on motor servo loading | |
| CN111024402B (en) | Aeroengine test bench installing system | |
| CN108593251B (en) | Probe supporting and moving measuring device for measuring flow of wall area near wall of groove | |
| CN203133252U (en) | Linear stepping motor test device | |
| CN108088647B (en) | Five-degree-of-freedom boundary layer measuring system for wind tunnel test | |
| CN108225778B (en) | Space vector force simulation loading device | |
| CN103644995A (en) | Ground device for testing unlocking force | |
| CN109946037B (en) | Blocking moving device for simulating bracket interference quantity change and application | |
| CN114112290A (en) | Flow field displacement measuring device applied to transonic wind tunnel | |
| CN107024307B (en) | Moment detector for ball screw pair | |
| CN209559459U (en) | A kind of sprue mobile device of simulation support interferences amount variation | |
| CN103018002B (en) | Testing device and method for measuring wind drag of automobile model | |
| CN113029505B (en) | Wind tunnel flow field mobile measurement device | |
| CN107702649A (en) | A kind of hall probe high precision position acquisition device | |
| CN208283035U (en) | The probe rides and movable measuring device of a kind of measurement cell wall near-wall region flowing | |
| CN209961442U (en) | Novel wind-tunnel flow field calibration mechanism | |
| CN110307975A (en) | Flight control system control stick measuring device | |
| CN106628249B (en) | Ducted aircraft testing device and testing method thereof | |
| CN210175095U (en) | Mounting device for testing propeller thruster | |
| CN207570797U (en) | A kind of gear-box of wind power generating set and the intelligent measurement platform of braking system | |
| CN210464901U (en) | Precise telescopic circumferential synchronous fine adjustment mechanism | |
| CN107091724B (en) | A kind of wind tunnel model gravity adjusting device | |
| CN109540457B (en) | Pipeline flow field distribution measuring device | |
| CN112078827A (en) | Multifunctional propeller measuring instrument and measuring method | |
| CN207336069U (en) | A kind of shift of transmission performance test stand system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |