飞行器振动环境参数测量系统比对试验研究

目的验证飞行器振动环境参数测量系统的匹配性及协调性。方法设计考虑动态环境影响因素的振动环境参数测量系统的比对试验方案,开展灵敏度检测及不同量级工况下的试验,获取测量系统的振动加速度。对比试验控制输出、飞行器振动环境参数测量系统、地面参照系统的测量结果。结果振动环境参数测量系统除Y1通道外的测量结果与试验控制输出、地面参照系统的测量结果的误差均在5%以内,而Y1通道的误差最高为27.2%。通过分析可知Y1通道的误差是由于灵敏度设置问题导致的。结论比对试验能够验证测量系统的匹配性和协调性,通过试验分析能够得到飞行器振动环境参数测量系统的测量误差水平,为飞行器振动环境参数测量系统的应用提供了数据支撑。

Comparative Test for Vibration Parameter Measuring System of Air Vehicle

Objective To verify compatibility and matchability of vibration parameter measuring system of air vehicle. Methods A comparative test scheme for vibration parameter measuring system was designed with consideration of the effects of the dynamic environment. Sensitivity inspection and vibration test with various conditions were carried out. Vibration acceleration response of the measuring system was obtained. The test control output were compared with measuring result of vibration environment measuring system and ground reference system of air vehicle. Results With the exception of Y1 channel, the errors for other channel results of the measuring system were smaller than 5% with the comparison of test control output results and ground reference results. The maximum error for Y1 channel was 27.2%. According to the further analysis, the error was caused by the sensitivity settings. Conclusion The comparative test can be utilized to demonstrate the compatibility and matchability of measuring system. Through the test results analysis, the measuring error for vibration parameter measuring system of air vehicle can be determined. It can provide data support for the application of the measuring system.