运载火箭速率陀螺故障诊断方法优化研究

Optimization of Fault Diagnosis Method for Rate Gyro of Launch Vehicle

目前运载火箭速率陀螺故障诊断方法主要针对速率陀螺一度故障进行诊断,对二度故障较难诊断出来。在传统方法基础上进行优化研究,增加对二度故障诊断方法,提高了系统对速率陀螺故障模式辨识能力,降低运载火箭飞行失败率。

At present,the fault diagnosis methods for the rate gyro of launch vehicle mainly focus on the firstdegree fault of rate gyro,and are difficult to be used to diagnose the second-degree fault. Based on the traditional method,an optimization study is carried out. The optimized method can be used to diagnose the second-degree fault beyond the first-degree one. It improves the system ability to identify the fault mode of rate gyro and reduces the flight failure rate of launch vehicle.