Publications Details

Component test specification based on the karhunen-loeve expansion

Raghavendra, Prasad; Paez, Thomas L.

Real mechanical shocks are nonstationary random processes, and it is becoming feasible to model these sources based on practical amounts of measured data. An efficient framework for modeling nonstationary random processes is the Karhunen-Loeve (KL) expansion. It simulates a random source as a mean function plus random deviation from the mean. We have developed an efficient technique for modeling non-Gaussian random processes in the KL framework, and we use it to characterize an electronic component's shock response to the random process. The random process is, in turn, used to create a shock test specification for this electronic component. Numerical results are presented in connection with the random process and test specifications. The electronic component is a speaker and is assembled inside a mobile phone. The test specification will be used in qualifying and selecting a robust component design (or manufacturer) for use inside a mobile phone.