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Low-speed wind tunnel thrust vector balance calibrating device

A thrust vector and balance technology, which is applied in the field of balance calibration devices, can solve problems such as inability to correctly simulate the working status of thrust vector special balances, and achieve the effects of improving measurement accuracy, reducing interference, and improving data measurement accuracy

Active Publication Date: 2017-05-10
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain the true value of the test, the thrust vector balance with bellows must be statically calibrated, and the conventional wind tunnel balance calibration equipment cannot correctly simulate the working state of the balance used for the thrust vector special test

Method used

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  • Low-speed wind tunnel thrust vector balance calibrating device
  • Low-speed wind tunnel thrust vector balance calibrating device

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Experimental program
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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] As attached figure 1 The device shown includes an external loading sleeve 3, a connecting cone sleeve 4, a taper bolt 2, a vent outer tube 11, a standard valve 6, a thrust vector balance sealing pipeline 30, a tension bolt 1, a transition section 19, and a connection structure 23 Wait.

[0027] The sealing pipeline 30 of the thrust vector balance includes a straight vent pipe 12, a bellows 8, a vent sleeve 10, a thrust vector balance 9, a sealing cover 7, a lead pipe 16, a small nozzle 13, and the like. The key 18 is used for positioning between the thrust vector balance sealing pipeline 30 and the transition section 19. The thrust vector balance sealing pipeline 30 is a part of the ventilation pipe installed inside the model during the wind tunnel test. The thrust vector balance is used to measure the force and moment generated by the nozzle deflection du...

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PUM

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Abstract

The invention discloses a low-speed wind tunnel thrust vector balance calibrating device, and the device comprises an external loading sleeve (3), a connection taper sleeve (4), a ventilation external tube (11), a valve (6), an o-shaped ring (14), a thrust vector balance sealing pipe (30), and a connection structure (23). The thrust vector balance sealing pipe (30) comprises a ventilation straight pipe (12), a corrugated pipe (8), a ventilation casing pipe (10), a sealing cover (7) and a small nozzle (13), wherein the parts between all connection parts of the thrust vector balance sealing pipe (30) are sealed. The device can achieve the inflation calibration, simulate the actual working state of the balance, correct the impact on a thrust vector balance from the corrugated pipe (8), and enable the measurement precision of the balance to be improved.

Description

Technical field [0001] The invention is a balance calibration device used for a thrust vector test in a wind tunnel, and belongs to the technical field of aeronautical weather dynamic test structure. Background technique [0002] Wind tunnel balance calibration includes static calibration and dynamic calibration. Static calibration is performed on the balance calibration equipment, and dynamic calibration is performed in the wind tunnel. Wind tunnel sky calm calibration is to simulate the force state of the balance in the wind tunnel experiment according to the known coordinate axis system on the balance calibration equipment, apply static load to the balance accurately, and obtain the output signal and calibration load of each component of the balance The change relationship of the balance is the balance calibration formula, so that in the wind tunnel experiment, according to the output signal of each component of the balance, the aerodynamic load acting on the model can be obta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 郑芳贾毅尹世博
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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