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Simulation test method and device for intermittent wind tunnel

A temporary wind tunnel and simulation test technology, which is applied in the direction of measuring devices, aerodynamic tests, machine/structural component tests, etc., can solve the problems of unable to verify the control parameters and flow field adjustment strategy, and the linkage is normal.

Active Publication Date: 2018-09-25
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Application Information

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Problems solved by technology

Therefore, it can only verify whether the compilation of the wind tunnel flow field control software and the basic test process are correct, but cannot verify whether the control parameters and flow field adjustment strategy are reasonable, and whether the linkage of various equipment in the system is normal

Method used

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  • Simulation test method and device for intermittent wind tunnel
  • Simulation test method and device for intermittent wind tunnel

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Embodiment Construction

[0029] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0030] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0031] Functional modules of the present invention include:

[0032] 1. Test process control function

[0033]One of the main functions of the invention is to realize the single action and linkage control of each actuator of the control system in the simulation test. In the traditional wind tunnel simulation test, the control system is responsible for adjusting the controlled parameters such as total pressure and Mach number. The value is used as the feedback value of the control system. On the ba...

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Abstract

The invention relates to the field of wind tunnel simulation test. Aiming at the problems in the prior art, the invention provides a simulation test method and device for an intermittent wind tunnel.The method and device bring great help for the verifying of a test flow, the auxiliary setting of control parameters and the reduction of the debugging risks, and the device is easy to operate, is complete in function, and is high in applicability. The method and device can achieve the better simulation test of a wind tunnel, and are also suitable for the related training of the new comers. The control parameter auxiliary setting step comprises the substeps: carrying out the first derivation according to a fitting controlled parameter adjustment characteristic curve function obtained at a simulation unit step, and obtaining a proportion adjustment coefficient kp of the controlled parameters; simulating a test effect according to the obtained controlled parameters through the modifying of the control parameters kp and ki; and completing the auxiliary setting operation of the control parameters after several tests, thereby providing the fundamental basis for the parameter setting of thesequent actual blowing test, wherein kp changes through taking an estimated value as a reference, and ki gradually increases from zero.

Description

technical field [0001] The invention relates to the field of wind tunnel test simulation tests, in particular to a method and device for temporary flushing wind tunnel simulation tests. Background technique [0002] A wind tunnel is a pipe-shaped test device that produces a controllable and uniform airflow. It is a ground simulation device for studying the law of air flow and the aerodynamic characteristics of aerospace vehicles and other objects. According to the different driving forms of wind tunnel, wind tunnel can be divided into various forms, and this paper selects the temporary wind tunnel as the research object. [0003] Temporary wind tunnel control system mainly includes operation management system, test flow field regulation system, data acquisition system, data processing system and status monitoring system, etc. Before carrying out the temporary wind tunnel test, the engineers need to debug and confirm the test process, test parameters and equipment communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00
CPCG01M9/00
Inventor 秦建华黄叙辉王博文唐亮高川李平凌忠伟陈海峰敬华
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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