基于加速寿命试验的液浮陀螺仪寿命预测

Research on Working Life Prediction of Liquid Floated Gyroscope Based on Accelerated Life Tests

以液浮陀螺仪为研究对象,在分析陀螺仪结构功能和工作原理的基础上,建立可靠性模型.确定了工作条件下的加速模型和加速寿命试验方案,利用恒湿恒温箱进行试验,对获取的试验数据进行处理.利用威布尔分布和极大似然估计预测了某液浮陀螺仪的工作寿命为5 031.9 h.所采用的的方法提高了液浮陀螺仪寿命预测的费效比,为预测此类产品寿命提供了一种重要方法.

Taking the liquid floated gyroscope as the research object, on the basis of analyzing the gyroscope structure features and working principle, its reliability model was established. Acceleration model and acceler- ated life test plan were determined. Used the temperature and humidity incubator to test and processed the test data, predicted the working life of liquid floating gyro was 5031.9 hours by Weibull distribution and maximum likelihood estimation. By using the method, the cost effectiveness of the liquid floated gyroscope life prediction is improved and provide an important way to predict the life of such products.