某飞行器推力矢量试验测力装置研制

苗磊; 李耀华; 李建强

doi:10.13224/j.cnki.jasp.2020.12.006

某飞行器推力矢量试验测力装置研制

doi: 10.13224/j.cnki.jasp.2020.12.006

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出版历程
- 收稿日期: 2020-05-25
- 刊出日期: 2020-12-28

Development of force measuring device for an aircraft thrust vectoring test

1.
High Speed Aerodynamics Institute,China Aerodynamics Research and ,Development Center,Mianyang Sichuan 621000,China
2.
College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

摘要

摘要: 为满足某飞行器推力矢量试验的测试要求,采用两台六分量应变天平和一个空气桥组成测力装置来实现飞机全机气动力和喷管推进特性同时分别测量。基于有限元软件,对天平的应变及空气桥对天平的干扰进行了分析。结果表明:空气桥对天平力分量的干扰值优于5%,对力矩(滚转力矩除外)分量的干扰值优于15%,达到了设计指标。通过校准获得了单独天平、天平带空气桥(充压、不充压)状态下的校准公式,校准结果表明:两台天平各分量的综合加载误差均优于0.3%,天平带空气桥(充压、不充压)状态下各分量的综合加载误差优于0.5%,空气桥对天平的干扰量值与有限元分析结果一致。理论分析与实测结果证明:研制的天平及空气桥达到了预定目标,它的测量精准度高,满足推力矢量风洞试验需求。
- 推力矢量 /
- 空气桥 /
- Ansys有限元软件 /
- 风洞应变天平校准 /
- 风洞应变天平公式
Abstract: For aircraft thrust vectoring test, two six-component strain-gauge balances and an air-line bridge were applied to respectively measure the performance of the whole aircraft and nozzle at the same time. Based on the finite element software, the strains of two balances and the interference of the air-line bridge on balance were analyzed. The results showed that the interference values of air-line bridge to the force components were better than 5%, and the interference values to the moment components (except for rolling moment) were better than 15%, which reached the design index. By calibration, the formulas of single balance and balance with air-line bridge (pressurized and non-pressurized states) were obtained. The calibration results showed that the comprehensive loading error of each component of the two balances was better than 0.3%, the comprehensive loading error of each component of balance with air-line bridge (pressurized and non-presswrized states) was better than 0.5%, and the interference values of air-line bridge to balance were consistent with the results of finite element analysis. Theoretical analysis and test results show that the development of balances and air-line bridge has reached the predetermined goal and its accuracy is high, which meets the requirements of the thrust vectoring wind tunnel test.
- thrust vector /
- air-line bridge /
- Ansys finite element soft /
- ,calibration of wind tunnel strain gage balance /
- ,formula of wind tunnel strain-gauge balance

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