CN107944192A - A kind of jointed connecting rod stress automatic analysis method and device - Google Patents
A kind of jointed connecting rod stress automatic analysis method and device Download PDFInfo
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- CN107944192A CN107944192A CN201711339926.3A CN201711339926A CN107944192A CN 107944192 A CN107944192 A CN 107944192A CN 201711339926 A CN201711339926 A CN 201711339926A CN 107944192 A CN107944192 A CN 107944192A
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- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
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Abstract
The invention discloses a kind of jointed connecting rod stress automatic analysis method and device, geometric parameter, amplitude and the loading analysis parameter of acquisition jointed connecting rod component；The combination assembling and loading of linkage are automatically performed according to analytical parameters；Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store result of calculation；Stress suffered by each component is drawn out with changes in amplitude curve map, and exports the Stress Map of each component and combined member under all operating modes.This method and device realize automatic assembling, loading and analysis of the jointed connecting rod system under all amplitudes, and extract simulation data parameter and result, draw out each operating mode lower structure stress amplitude change curve of each component, stressing conditions of each component under each work range, load cases combination are analyzed comprehensively, obtain the Stress Map under all operating modes.
Description
Technical field
The invention belongs to crane structure technical field, more particularly, to a kind of jointed connecting rod stress automatic analysis method and
Device.
Background technology
Jointed connecting rod is the important process structure of crane, is mainly used for bearing arm support head lift heavy load, and working
The middle change for realizing cargo distance amplitude so as to fulfill cargo carrying work.It bears cargo lift heavy, itself dead weight, wind load
Lotus, revolution inertia force etc..Due to combination arm support, the far and near change of amplitude is by arm support, big pull rod, trunk beam group during the work time
Resultant motion is completed, the whole combination arm support movement of change driving at the arm support elevation angle, and the locus of each component becomes during the motion
Change complexity, therefore the stressing conditions for each several part for combining arm support under different amplitudes differ, and are such as all carried without whole range
, there is breaking because of intensity deficiency in the analysis calculating of lotus during use after the combination arm support for easily causing to design manufactures in the later stage
Fatigue rupture either because of the unstability of insufficient rigidity or because of fatigue strength deficiency etc. is split, causes great security risk.
Crane bar combination jib system is since geometric parameter is more, each steel structure member stressing conditions in amplitude changing process
Sufficiently complex, designer is when stress analysis calculates, using the finite element softwares such as ANSYS progress hand assembled link mechanism
Apply the stressing conditions of each component of each work range of loading analysis again afterwards, process is very cumbersome, and Model Mounting and loading disappear
The time of consumption is longer, and analysis efficiency is low, and workload is huge and easy error.And the most dangerous work of each member stress can not be predicted
Condition, amplitude, are only capable of selecting indivedual amplitudes, operating mode to be analyzed by the experience of designer, there is certain uncertainty, blindness.
The finite element software human-computer interaction interface such as ANSYS is excessively cumbersome, and there are incomplete many drawbacks for manual calculations.
Therefore, it is eager to find a kind of analysis computing system, it is operated simply, it is accurate to obtain result of calculation, covers
All operating modes being likely to occur, amplitude.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of jointed connecting rod stress automatic analysis method and dress
Put, this method and device realize automatic assembling, loading and analysis of the jointed connecting rod system under all amplitudes, and extract emulation
Output parameter and as a result, draw out each operating mode lower structure stress-changes in amplitude curve of each component, analyzes each component each comprehensively
Stressing conditions under a work range, load cases combination, obtain the Stress Map under all operating modes.The device is further by core at the same time
Heart finite element program is packaged using Visual Basic program languages so that the more visual simple and fast of operation interface, i.e.,
Make the research staff of no finite element software operating experience also can skillfully be divided in the case of kernel is not known about using the program
Analysis calculates, more efficient accurate Computer Aided Design.
The first object of the present invention is to provide a kind of jointed connecting rod stress automatic analysis method.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of jointed connecting rod stress automatic analysis method, this method include：
Obtain geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
The combination assembling and loading of linkage are automatically performed according to analytical parameters；
Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store result of calculation；
Stress suffered by each component is drawn out with changes in amplitude curve map, and exports each component under all operating modes and combination structure
The Stress Map of part.
Further, the analytical parameters include the physical dimension of link component, the amplitude range that connecting rod changes, finite element
Institute is loaded in predefined sizing grid, connecting rod amplitude-step and connecting rod work.
Further, the load includes lift heavy load, inertial load, wind load and from heavy load.
Further, the linkage member includes arm support, trunk beam and big pull rod, and the linkage is faced upward in arm support
The change of amplitude is realized when changing in angle.
Further, the arm support is equipped with rack, and the rack, which is used to apply arm support, to be constrained.
Further, the combination of the linkage is assembled and loading includes automatic detection calculating link component shape assembling
Key node, the automatic link component that detects need to apply the coordinate position of load, and load is applied to the essence of link component automatically
At true position, the automatic obligatory point position coordinates for calculating identification link component, and load restraint is carried out to the position.
Further, the curve map further includes trunk beam height of head with changes in amplitude curve map.
Further, the automatic analysis method, further includes and automatically analyzes calculating specific amplitude or specific load lower link
Intensity, rigidity and the stability of component, and export corresponding stress-changes in amplitude curve map and Stress Map.
The second object of the present invention is to provide a kind of computer-readable recording medium.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of computer-readable recording medium, wherein being stored with a plurality of instruction, described instruction is suitable for by terminal device equipment
Processor load and perform following processing：
Obtain geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
The combination assembling and loading of linkage are automatically performed according to analytical parameters；
Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store result of calculation；
Stress suffered by each component is drawn out with changes in amplitude curve map, and exports each component under all operating modes and combination structure
The Stress Map of part.
The third object of the present invention is to provide a kind of jointed connecting rod stress automatic analysing apparatus.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of jointed connecting rod stress automatic analysing apparatus, including：
Parameter input module, for obtaining geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
Component invoking module, the combination for being automatically performed linkage according to analytical parameters is assembled and loading；
Calculating module is automatically analyzed, intensity, rigidity and the stability of each amplitude lower member module are calculated for automatically analyzing；
Single condition calculating module, for calculating the intensity of each construction part module, rigidity and stability under single working condition；
Rack force computing module, for calculating the rack force under each amplitude；
Memory module, calculating result is automatically analyzed for storing；
Handling result output module, draws out stress suffered by each component with changes in amplitude curve map, and exports all operating modes
Under each component and combined member Stress Map.
Beneficial effects of the present invention：
(1) a kind of jointed connecting rod stress automatic analysis method and device of the invention, it is ease in use with modularization idea
Processing step, realize combination the automated analysis of arm support, simplify the cumbersome processing procedure of finite element analysis.
(2) of the invention a kind of jointed connecting rod stress automatic analysis method and device, by change geometric parameter, amplitude,
Load and other specification, various schemes energy rapid results, greatly improve analysis efficiency, simplify analysis method,
The automatic analysis method of combination arm support is realized, the design platform of accurate simplicity is provided for technical staff.
(3) core finite element program is packaged by the present invention using Visual Basic program languages so that operation circle
The more visual simple and fast in face, also can even if the research staff of no finite element software operating experience in the case of kernel is not known about
Skillfully analysis calculating, more efficient accurate Computer Aided Design are carried out using the program.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are used to explain the application, do not form the improper restriction to the application.
Fig. 1 is jointed connecting rod automatic analysis method schematic diagram of the present invention；
Fig. 2 (a) is each construction part module parameter schematic diagram of the present invention；
Fig. 2 (b) is parameter inputting interface schematic diagram of the present invention；
Fig. 3 (a)~(c) is that the automatic assembling of construction part module of the present invention and loading result show Stress Map schematic diagram；
Fig. 4 (a)~(d) is arm support module, big pull rod module, trunk beam module and the connecting rod after the present invention assembles respectively
The Stress Map display schematic diagram of mechanism；
Fig. 5 (a)~(d) is that arm support module of the present invention, big pull rod module, trunk beam module stress are bent with changes in amplitude respectively
Line chart and trunk beam height of head are with changes in amplitude curve synoptic diagram；
Fig. 6 is that the present invention checks result of calculation interface schematic diagram；
Fig. 7 is that the single specific amplitude duty parameter input of the present invention and result check interface schematic diagram；
Fig. 8 is that the single specific amplitude duty parameter input of the present invention and rack force calculate schematic diagram.
Embodiment：
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
It is noted that described further below is all illustrative, it is intended to provides further instruction to the application.It is unless another
Indicate, all technical and scientific terms that the present embodiment uses have and the application person of an ordinary skill in the technical field
Normally understood identical meanings.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
For the deficiencies in the prior art, the prior art is solved for crane bar combination jib system due to several
What parameter is more, and each steel structure member stressing conditions are sufficiently complex in amplitude changing process, and designer grasps when stress analysis calculates
Make it is cumbersome, it is error-prone the problem of, the present invention provides a kind of jointed connecting rod stress automatic analysis method and device, by by core
Finite element program is packaged using Visual Basic program languages, realize jointed connecting rod system under all amplitudes from
Dynamic assembling, loading and analysis.
In the case where there is no conflict, the feature in the embodiment and embodiment in the application can be mutually combined.Tie below
Closing attached drawing, the invention will be further described with embodiment.
Embodiment 1：
The purpose of the present embodiment 1 is to provide a kind of jointed connecting rod stress automatic analysis method.
To achieve these goals, the present invention is using a kind of following technical solution：
As shown in Figure 1,
A kind of jointed connecting rod stress automatic analysis method, this method include：
Step (1)：Obtain geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
Step (2)：The combination assembling and loading of linkage are automatically performed according to analytical parameters；
Step (3)：Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store calculating
As a result；
Step (4)：Stress suffered by each component is drawn out with changes in amplitude curve map, and exports each component under all operating modes
And the Stress Map of combined member.
As shown in Fig. 2, in the present embodiment, in step (1), the analytical parameters include the physical dimension of link component,
The amplitude range that connecting rod changes, finite element predefine sizing grid, and institute is loaded in connecting rod amplitude-step and connecting rod work.
The load includes lift heavy load, inertial load, wind load and from heavy load.
As shown in Fig. 3 (a), in the present embodiment, in step (2), the linkage member include arm support, big pull rod and
Trunk beam, the linkage realize the change of amplitude when the arm support elevation angle changes.
The arm support is equipped with rack, and the rack, which is used to apply arm support, to be constrained.
As shown in Fig. 3 (b), in the present embodiment, in step (2), the combination assembling and loading of the linkage include
Automatic detection calculates connecting rod shape assembling key node, automatic to detect the coordinate position for needing to apply load in link component, from
The dynamic accurate location that load is applied to link component, the automatic obligatory point position coordinates for calculating identification means module, and it is right
The position carries out load restraint.
Fig. 3 (c) is the Stress Map for carrying out sub-assembly shown after automatic loading calculates.
Fig. 4 (a)~(d) is that arm support, big pull rod, the Stress Map of trunk beam and linkage after assembling are shown, can
Intuitively to find out the situation of linkage suffered stress under certain load.
In the present embodiment, in step (4), the curve map further includes trunk beam height of head with changes in amplitude curve
Figure, it is specific as shown in Fig. 5 (d).Height difference of the trunk beam in amplitude changing process can be drawn by Fig. 5 (d), and then may determine that
Whether the design of the physical dimension of jointed connecting rod mechanism meets the requirements.
Fig. 5 (a)~(c) be each component stress for being drawn out according to related data with changes in amplitude curve map, can from Fig. 5
With the open-and-shut stressing conditions for finding out each component under each work range, load cases combination, and the danger under same load
Dangerous amplitude positions.
Fig. 6 is the result of calculation display figure of the present invention, can be called from Fig. 6 and check each result of calculation.
In the present embodiment, the automatic analysis method, further includes and automatically analyzes under calculating specific amplitude or specific load
Intensity, rigidity and the stability of construction part module, and export corresponding stress-changes in amplitude curve map and Stress Map.Calculate knot
Fruit is as shown in Figure 7.
In the present embodiment, can also calculate the rack force under a certain amplitude operating mode as shown in Figure 8, input range, load,
After drift angle, counterweight and wind direction parameter, Graphics is selected, rack force result can be ejected by clicking on " click on and calculate ".
Embodiment 2：
The purpose of the present embodiment 2 is to provide a kind of computer-readable recording medium.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of computer-readable recording medium, wherein being stored with a plurality of instruction, described instruction is suitable for by terminal device equipment
Processor load and perform following processing：
Obtain geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
The combination assembling and loading of linkage are automatically performed according to analytical parameters；
Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store result of calculation；
Stress suffered by each component is drawn out with changes in amplitude curve map, and exports each component under all operating modes and combination structure
The Stress Map of part.
The present invention uses Visual Basic program language developing user interfaces, and enclosed inside ANSYS finite element analyses are soft
The identifiable customized mac file routines of part are used for realization above-metioned instruction.
In the present embodiment, the example of computer readable recording medium storing program for performing further include magnetic storage medium (for example, ROM, RAM,
USB, floppy disk, hard disk etc.), optical record medium (for example, CD-ROM or DVD), PC interfaces (for example, PCI, PCI-Express,
WiFi etc.) etc..However, various aspects of the disclosure not limited to this.
Embodiment 3：
The purpose of the present embodiment 3 is to provide a kind of jointed connecting rod stress automatic analysing apparatus.
To achieve these goals, the present invention is using a kind of following technical solution：
A kind of jointed connecting rod stress automatic analysing apparatus, including：
Parameter input module, for obtaining geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
Component invoking module, the combination for being automatically performed linkage according to analytical parameters is assembled and loading；
Calculating module is automatically analyzed, intensity, rigidity and the stability of each amplitude lower member module are calculated for automatically analyzing；
Single condition calculating module, for calculating the intensity of each construction part module, rigidity and stability under single working condition；
Rack force computing module, for calculating the rack force under each amplitude；
Memory module, calculating result is automatically analyzed for storing；
Handling result output module, draws out stress suffered by each component with changes in amplitude curve map, and exports all operating modes
Under each component and combined member Stress Map.
Beneficial effects of the present invention：
(1) a kind of jointed connecting rod stress automatic analysis method and device of the invention, it is ease in use with modularization idea
Processing step, realize combination the automated analysis of arm support, simplify the cumbersome processing procedure of finite element analysis.
(2) of the invention a kind of jointed connecting rod stress automatic analysis method and device, by change geometric parameter, amplitude,
Load and other specification, various schemes energy rapid results, greatly improve analysis efficiency, simplify analysis method,
The automatic analysis method of combination arm support is realized, the design platform of accurate simplicity is provided for technical staff.
The foregoing is merely the preferred embodiment of the application, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.Therefore, the present invention is not intended to be limited to this
These embodiments shown in text, and it is to fit to the most wide scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. a kind of jointed connecting rod stress automatic analysis method, it is characterised in that this method includes：
Obtain geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
The combination assembling and loading of linkage are automatically performed according to analytical parameters；
Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store result of calculation；
Stress suffered by each component is drawn out with changes in amplitude curve map, and exports each component and combined member under all operating modes
Stress Map.
2. the method as described in claim 1, it is characterised in that the analytical parameters include the physical dimension of link component, even
The amplitude range that bar changes, finite element predefine sizing grid, and institute is loaded in connecting rod amplitude-step and connecting rod work.
3. method as claimed in claim 1 or 2, it is characterised in that the load includes lift heavy load, inertial load, wind load
Lotus and from heavy load.
4. the method as described in claim 1, it is characterised in that the linkage member includes arm support, trunk beam and big drawing
Bar, the linkage are used for the change that amplitude is realized when the arm support elevation angle changes.
5. method as claimed in claim 4, it is characterised in that the arm support is equipped with rack, and the rack is used for arm support
Apply constraint.
6. the method as described in claim 1, it is characterised in that the combination assembling and loading of the linkage include automatic inspection
Survey and calculate link component shape assembling key node, the automatic link component that detects needs to apply the coordinate position of load, automatically will
Load is applied to the accurate location of link component, the automatic obligatory point position coordinates for calculating identification means module, and to the position
Put carry out load restraint.
7. the method as described in claim 1, it is characterised in that the curve map further includes trunk beam height of head and becomes with amplitude
Change curve map.
8. the method as described in claim 1, it is characterised in that the automatic analysis method, further includes and automatically analyze calculating spy
Intensity, rigidity and the stability of tentering degree or specific load lower link mechanism member, and it is bent to export corresponding stress-changes in amplitude
Line chart and Stress Map.
9. a kind of computer-readable recording medium, wherein being stored with a plurality of instruction, it is characterised in that described instruction is suitable for by terminal
The processor of equipment equipment loads and performs following processing：
Obtain geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
The combination assembling and loading of linkage are automatically performed according to analytical parameters；
Automatically analyze intensity, rigidity and the stability for calculating each amplitude lower link mechanism member and store result of calculation；
Stress suffered by each component is drawn out with changes in amplitude curve map, and exports each component and combined member under all operating modes
Stress Map.
10. a kind of jointed connecting rod stress automatic analysing apparatus, including：
Parameter input module, for obtaining geometric parameter, amplitude and the loading analysis parameter of jointed connecting rod component；
Component invoking module, the combination for being automatically performed linkage according to analytical parameters is assembled and loading；
Calculating module is automatically analyzed, intensity, rigidity and the stability of each amplitude lower member module are calculated for automatically analyzing；
Single condition calculating module, for calculating the intensity of each construction part module, rigidity and stability under single working condition；
Rack force computing module, for calculating the rack force under each amplitude；
Memory module, calculating result is automatically analyzed for storing；
Handling result output module, draws out stress suffered by each component with changes in amplitude curve map, and exports under all operating modes
The Stress Map of each component and combined member.
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| CN201711339926.3A CN107944192A (en) | 2017-12-14 | 2017-12-14 | A kind of jointed connecting rod stress automatic analysis method and device |
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| CN201711339926.3A CN107944192A (en) | 2017-12-14 | 2017-12-14 | A kind of jointed connecting rod stress automatic analysis method and device |
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