Abstract:

The accelerated life test of missileborne equipment with a long storage life and high reliability has issues on the small sample and the complex failure mechanism. therefore, it is difficult to determine the acceleration factor by using the traditional statistic method. Based on the concept of the characteristic life, a new method to estimate the acceleration factor of systemlevel products is proposed by employing the reliability prediction method of missile products and the Arrheniusbased accelerated life test model. And then the related storage life estimation model is deduced.Taking the barometric altimeter as an example, the plan scheme of the accelerated life test to estimate the storage life is designed, both fault identification rules and fault handling rules are also provided, which is to demonstrate the validity of the proposed acceleration factor estimation strategy.