CN102435413A - Method for ascertaining correspondence relationship of pressure measuring points of wind tunnel test model - Google Patents
Method for ascertaining correspondence relationship of pressure measuring points of wind tunnel test model Download PDFInfo
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- CN102435413A CN102435413A CN2011102806733A CN201110280673A CN102435413A CN 102435413 A CN102435413 A CN 102435413A CN 2011102806733 A CN2011102806733 A CN 2011102806733A CN 201110280673 A CN201110280673 A CN 201110280673A CN 102435413 A CN102435413 A CN 102435413A
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Abstract
The invention provides a method for ascertaining the correspondence relationship of pressure measuring points of a wind tunnel test model, relates to a wind tunnel test method of the aerospace industry and aims to solve the problems that the time and the labor are wasted and the operation is cockamamie in the process of an existing wind tunnel pressure measuring test. Firstly, a measuring point configuration table is produced in a collecting and processing system, and information such as record numbers, part names and serial numbers, section names and serial numbers, coordinates, module numbers and nozzle numbers of measuring channels of pressure measuring equipment, and the like is recorded; after all pipeline numberless connection is completed, constant pressure is applied to the pressure measuring points of the model in sequence point by point, all pressure measuring points are scanned and collected by the collecting and processing system, and the detected information of the measuring channels, such as the module numbers, the nozzle numbers and the like, which uniquely approximates a given pressure value, is recorded in the corresponding measure point configuration table; and after all the pressure measuring points are pressurized, an intact measuring point configuration table is automatically formed by the collecting and processing system. The method has the advantages of accurate and comprehensive positioning, high intellectualization level, automatic completion of the whole operation, time and labor conservation and high efficiency.
Description
Technical field
The present invention relates to a kind of method of in wind-tunnel manometric test process, confirming model surface pressure tap and pressure instrumentataion connection corresponding relation.
Technical background
Manometric test is one of test method basic in the wind tunnel test, and purpose is for Flight Vehicle Structure intensitometer calculation and Analysis, analysis of flow characteristics and pneumatic design provide foundation, is exploratory flight device aerodynamic characteristic, the important means that obtains aerodynamic loading.At present, the wind-tunnel manometric test mainly is employed in the method that model surface is laid pressure tap, is sent to pressure transducer to model surface pressure through pressure tap and pressure measurement pipeline and measures.When multiple spot pressure instrumentataions such as adopting electron pressure scanning valve system or pressure transducer carries out manometric test, hope layout pressure tap as much as possible on the pressure measurement model usually, so that obtain the more detailed pressure distribution of model surface.Pressure tap like full scale model in one meter magnitude wind-tunnel is typically designed to 700 points, and the pressure tap of full scale model surpasses 1000 points usually in two meters magnitude wind-tunnel.Hundreds of pressure tap need be corresponding one by one with the measurement passage of electron pressure scanning valve system or pressure transducer through piezometric tube on the model, could obtain the pressure distribution on the model different characteristic section fast and accurately, for pneumatic research provides correct foundation.
At present, corresponding one by one in order to guarantee that model surface pressure tap and pressure instrumentataion measuring point are numbered, traditional method is:
When modelling, recording mechanism, component names and numbering, section title and the numbering of design and establishment model pressure tap, coordinate etc. (are called for short: model measuring point numbering);
When mould processing, pressure tap is drawn steel pipe number (be called for short: steel pipe number), and form the corresponding relation (as: model measuring point numbering ← → steel pipe number) of model measuring point numbering and steel pipe number;
To the measurement channel number of pressure instrumentataion (when using electron pressure scanning valve system by module No. with ozzle number combination confirm, claim during the working pressure sensor to be called for short sensor number: the measurement channel number);
Draw pressure measurement flexible pipe numbering between steel pipe and the pressure instrumentataion (be called for short: flexible pipe number) to connecting pressure tap;
When the pressure measurement flexible pipe connects pressure tap and draws steel pipe, the annexation of manual record steel pipe number and flexible pipe number (as: steel pipe number ← → flexible pipe number);
When the pressure measurement flexible pipe connects pressure instrumentataion, the annexation of manual record flexible pipe number and pressure instrumentataion (as: flexible pipe number ← → measurement channel number);
With the model measuring point numbering of record ← → steel pipe number, steel pipe number ← → flexible pipe number, flexible pipe number ← → measure channel number to import computing machine respectively, arrangement form final model measuring point numbering ← → measure the mapping table of channel number;
Check and verify the model measuring point to number ← → measure the mapping table of channel number, from model m section, the pressurization of n period, through the acquisition processing system image data, whether the checking mapping table is correct.
This tradition is confirmed the method for pressure tap corresponding relation, and its shortcoming is must rely on the correspondence of multiple numbering to make up to locate point position, and is loaded down with trivial details, time-consuming; Need repeatedly the manual record corresponding relation and import computing machine, time-consuming, fallibility; In dull, loaded down with trivial details working long hours, error probability is high.Increase along with what pressure measurement was counted, this method will cause the sharp increase of time resource, demand of human resources, brings out the measuring point corresponding relation mistake that causes because of factors such as personnel's replacement, handwriting recognition, complicate statisticses and takes place.
Summary of the invention
The objective of the invention is to solve that existing wind-tunnel manometric test process wastes time and energy and the problem of complex operation; A kind of method that can quick and precisely confirm pressure tap and pressure instrumentataion measurement passage corresponding relation is provided; This method accurate positioning is comprehensive; And intelligent level is high, and whole operation is accomplished automatically, and time saving and energy saving efficient is high.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of method of definite model in wind tunnel pressure tap corresponding relation comprises the following steps:
A, the pressure tap on the model is connected with the measurement passage of pressure instrumentataion one by one with the pressure measurement pipeline;
B, with model pressure tap number record in acquisition processing system;
C, compression system are used for each the pressure tap pointwise on the pressure measurement model is pressurizeed;
D, pressure instrumentataion are connected with acquisition processing system; Pressure instrumentataion detects the pressure of pressure tap; And each is measured the data transmission that passage records give acquisition processing system, wherein acquisition processing system control pressure instrumentataion operation and gather and receive the data that pressure instrumentataion is measured passage;
E, when compression system during to the pressurization of one of them pressure tap; The operation of acquisition processing system control pressure instrumentataion; Each pressure tap pressure on the pressure measurement model detects; The data of passage are respectively measured in acquisition processing system scanning, detect the measurement passage near the compression system output pressure, and this is measured the information and the information corresponding record in acquisition processing system that has applied the pressure tap of pressure of passage;
F, compression system continue remaining pressure tap is pressurizeed one by one; And repetition above-mentioned steps e;, corresponding one by one with the measurement passage with up to all pressure taps near the information and the information corresponding record in acquisition processing system that has applied the pressure tap of pressure of the measurement passage of compression system output pressure.
In such scheme, what said pressure measuring system applied pressure tap is constant pressure.
In such scheme; Be provided with a measuring point allocation list in the said acquisition processing system, in step b, with model pressure tap number record in the measuring point allocation list; Then in step e; Correspondence position with record this pressure tap in the measuring point allocation list near the information of the measurement passage of compression system output pressure passes through step f, again with the information of each pressure tap and corresponding one by one being arranged in the measuring point allocation list of information of measuring passage.
Can find out that from each item technical characterictic of the invention described above its advantage is:
Manometric test prepares to realize not having number connection (promptly not needing in advance pressure tap and equipment such as measuring passage to be carried out reference numeral), and is simple and efficient to handle, reduced workload; The location of pressure tap and measuring point allocation list are filled in etc. and can be accomplished automatically by software kit; Test position fix is accurately comprehensive, and homodyne is wrong; Compare with classic method, intelligent level is high, and time saving and energy saving, efficient obviously improves; Therefore, characteristics such as that the present invention has is easy and simple to handle, reliable, efficient height are specially adapted to the extensive wind-tunnel manometric test of using electron pressure scanning valve system to carry out, also can in other pressure measuring system, use.
Description of drawings
Fig. 1 is a principle of operation synoptic diagram of the present invention;
The 4th, pressure measurement pipeline 5 is that pressure instrumentataion 6 is acquisition processing systems
The 7th, the measuring point allocation list.
Embodiment
Below through specific embodiment and combine accompanying drawing that the present invention is done further explanation:
Present embodiment is a kind of method of definite model in wind tunnel pressure tap corresponding relation; Pass through present embodiment; We can be convenient to operation with the information of pressure tap and corresponding measurement passage corresponding record one by one fast and accurately, and specific operation process comprises the following steps:
A, the pressure tap on the model is connected with the measurement passage of pressure instrumentataion one by one with the pressure measurement pipeline;
B, model pressure tap numbering (as: component names and numbering, section title and numbering, coordinate etc.) is recorded in the acquisition processing system;
C, compression system are used for the pressure tap pointwise on the pressure measurement model is pressurizeed, and are the convenient pressurization special joint that design from the pressurization of pressure measurement model surface, can select for use to grow for the hard nylon tube of 3cm to add gas circuit rapid-acting coupling or high-speed switch combines;
D, pressure instrumentataion are connected with acquisition processing system; Pressure instrumentataion detects the pressure of pressure tap; And each is measured the data transmission that passage records give acquisition processing system; Wherein operation of acquisition processing system control pressure instrumentataion and collection receive the data that pressure instrumentataion is measured passage, and pressure instrumentataion can be made up of electron pressure scanning valve system and pressure measurement module, also can be made up of data acquisition system (DAS) and pressure transducer;
E, when compression system during to the pressurization of one of them pressure tap; The operation of acquisition processing system control pressure instrumentataion; Each pressure tap pressure on the pressure measurement model detects; The data of passage are respectively measured in acquisition processing system scanning, detect the measurement passage near the compression system output pressure, and this is measured the information and the information corresponding record in acquisition processing system that has applied the pressure tap of pressure of passage;
F, compression system continue remaining pressure tap is pressurizeed one by one; And repetition above-mentioned steps e;, corresponding one by one with the measurement passage with up to all pressure taps near the information and the information corresponding record in acquisition processing system that has applied the pressure tap of pressure of the measurement passage of compression system output pressure.
Generally speaking, what we exerted pressure to pressure tap is constant pressure, and the compression system of employing is a programmed pressure controller etc., if less demanding to pressure precision, direct use reduction valve.
For the more convenient quick mutually correspondence of information to pressure tap and measurement passage; We are provided with a measuring point allocation list in said acquisition processing system; In order to information such as the measurement passages of recording mechanism, component names and the numbering, section title and numbering, coordinate and the pressure instrumentataion that write down each pressure tap (as: module No., ozzle number); In above-mentioned step b; At first the information with each pressure tap at first is recorded in the measuring point allocation list, pressurizes successively according to the order of each pressure tap in the measuring point allocation list then, then in step e; With the correspondence position that records this pressure tap in the measuring point allocation list near the information of the measurement passage of pressure system output pressure; Selecting next pressure tap, repeat above-mentioned steps, up to information and corresponding one by one being arranged in the measuring point allocation list of information of measuring passage with all pressure taps.
Disclosed all characteristics in this instructions except mutually exclusive characteristic, all can make up by any way.
Disclosed arbitrary characteristic in this instructions (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Claims (3)
1. the method for a definite model in wind tunnel pressure tap corresponding relation is characterized in that comprising the following steps:
A, the pressure tap on the model is connected with the measurement passage of pressure instrumentataion one by one with the pressure measurement pipeline;
B, model pressure tap number information is recorded in the acquisition processing system;
C, compression system are used for each the pressure tap pointwise on the pressure measurement model is pressurizeed;
D, pressure instrumentataion are connected with acquisition processing system; Pressure instrumentataion detects the pressure of pressure tap; And each is measured the data transmission that passage records give acquisition processing system, wherein acquisition processing system control pressure instrumentataion operation and gather and receive the data that pressure instrumentataion is measured passage;
E, when compression system during to the pressurization of one of them pressure tap; The operation of acquisition processing system control pressure instrumentataion; Each pressure tap pressure on the pressure measurement model detects; The data of passage are respectively measured in acquisition processing system scanning, detect the measurement passage near the compression system output pressure, and this is measured the information and the information corresponding record in acquisition processing system that has applied the pressure tap of pressure of passage;
F, compression system continue remaining pressure tap is pressurizeed one by one; And repetition above-mentioned steps e;, corresponding one by one with the measurement passage with up to all pressure taps near the information and the information corresponding record in acquisition processing system that has applied the pressure tap of pressure of the measurement passage of compression system output pressure.
2. the method for a kind of definite model in wind tunnel pressure tap corresponding relation according to claim 1, what it is characterized in that said pressure measuring system applies pressure tap is constant pressure.
3. the method for a kind of definite model in wind tunnel pressure tap corresponding relation according to claim 1; It is characterized in that being provided with in the said acquisition processing system measuring point allocation list; In step b; Each model pressure tap number information at first is recorded in the measuring point allocation list, then in step e, the correspondence position that records this pressure tap in the measuring point allocation list near the information of the measurement passage of compression system output pressure; Pass through step f again, with the information and corresponding one by one being arranged in the measuring point allocation list of information of measuring passage of each pressure tap.
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| CN2011102806733A CN102435413B (en) | 2011-09-21 | 2011-09-21 | Method for ascertaining correspondence relationship of pressure measuring points of wind tunnel test model |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102879172A (en) * | 2012-10-12 | 2013-01-16 | 中国航空工业集团公司沈阳飞机设计研究所 | Convenient and fast connection system for measuring pressure of control surface |
| CN103926035A (en) * | 2014-04-16 | 2014-07-16 | 湖南科技大学 | High-frequency and high-precision long-distance air pressure meter |
| CN104122030A (en) * | 2014-07-28 | 2014-10-29 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method and system for measuring air flow pressure in test room |
| CN109946036A (en) * | 2019-04-01 | 2019-06-28 | 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 integrated test method of high-speed wind tunnel dynamometry survey pressure |
| CN110044540A (en) * | 2019-05-31 | 2019-07-23 | 中国空气动力研究与发展中心高速空气动力研究所 | The pressurizer of model surface pressure tap and its application in a kind of test of wind tunnel pressure measuring |
| CN112326189A (en) * | 2021-01-06 | 2021-02-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring device and pressure measuring method |
| CN115452313A (en) * | 2022-11-14 | 2022-12-09 | 中国空气动力研究与发展中心高速空气动力研究所 | Method for quickly calibrating angular sensitivity of probe in sonic explosion test |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879172A (en) * | 2012-10-12 | 2013-01-16 | 中国航空工业集团公司沈阳飞机设计研究所 | Convenient and fast connection system for measuring pressure of control surface |
| CN102879172B (en) * | 2012-10-12 | 2014-09-24 | 中国航空工业集团公司沈阳飞机设计研究所 | Convenient and fast connection system for measuring pressure of control surface |
| CN103926035A (en) * | 2014-04-16 | 2014-07-16 | 湖南科技大学 | High-frequency and high-precision long-distance air pressure meter |
| CN104122030A (en) * | 2014-07-28 | 2014-10-29 | 中国航空工业集团公司北京长城计量测试技术研究所 | Method and system for measuring air flow pressure in test room |
| CN109946036A (en) * | 2019-04-01 | 2019-06-28 | 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 integrated test method of high-speed wind tunnel dynamometry survey pressure |
| CN109946036B (en) * | 2019-04-01 | 2021-02-26 | 中国空气动力研究与发展中心高速空气动力研究所 | Force and pressure measurement integrated test method for high-speed wind tunnel |
| CN110044540A (en) * | 2019-05-31 | 2019-07-23 | 中国空气动力研究与发展中心高速空气动力研究所 | The pressurizer of model surface pressure tap and its application in a kind of test of wind tunnel pressure measuring |
| CN112326189A (en) * | 2021-01-06 | 2021-02-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring device and pressure measuring method |
| CN112326189B (en) * | 2021-01-06 | 2021-03-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring device and pressure measuring method |
| CN115452313A (en) * | 2022-11-14 | 2022-12-09 | 中国空气动力研究与发展中心高速空气动力研究所 | Method for quickly calibrating angular sensitivity of probe in sonic explosion test |
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