Monitoring and Prewarning System for Dynamic Load in Hinge Moment Wind Tunnel Test

XIONG Wentao; LIU Zhonghua; ZHAO Yu; LIAN Zhenzeng

doi:10.15892/j.cnki.djzdxb.2023.05.014

Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 5: 87 - 93

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.05.014

Monitoring and Prewarning System for Dynamic Load in Hinge Moment Wind Tunnel Test

XIONG Wentao ,
LIU Zhonghua ,
ZHAO Yu ,
LIAN Zhenzeng

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Low Speed Aerodynamics Institute of China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China

Received date: 2023-02-15

Online published: 2024-12-30

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Abstract

The dynamic load has a significant impact on the structural security and measurement accuracy of the hinge moment balance in wind tunnels on the vehicle. To solve the dynamic load problem, a monitoring and prewarning system for dynamic load in hinge moment wind tunnel test is developed. Designing scheme of the software and hardware, and dynamic data processing method and critical value setting method for the monitoring and prewarning system are introduced in detail, and the system is experimentally verified. The study results show that the monitoring and prewarning system can effectively provide an early warning of the dynamic load that exists in hinge moment wind tunnel test, and adjusting the inherent frequency of the control surface/balance system away from the aerodynamic excitation frequency of flow separation can ensure the safety of the test and reliability of the test data.

Key words： hinge moment; wind tunnel test; dynamic load; prewarning

Cite this article

XIONG Wentao , LIU Zhonghua , ZHAO Yu , LIAN Zhenzeng . Monitoring and Prewarning System for Dynamic Load in Hinge Moment Wind Tunnel Test[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(5) : 87 -93 . DOI: 10.15892/j.cnki.djzdxb.2023.05.014

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