A0893
Title: Reliability analysis for systems with thermal balance control of internal components
Authors: Dong Xu - Beijing Institute of Technology (China) [presenting]
Yubin Tian - Beijing institute of Technology (China)
Dianpeng Wang - Beijing Institute of Technology (China)
Abstract: Temperature is a non-negligible source of failure in common electronic multi-component systems. To avoid localized high temperatures occurring in multiple power supply channels within a satellite power supply system, the thermal balance control method is investigated based on the minimum energy criterion, which could consider the local temperatures and the degree of dispersion of heat-generating components simultaneously. A reliability model for the complex system is proposed, and a Monte Carlo method is presented to evaluate the system reliability by mimicking the temperature evolution under a dynamic power supply demand modeling by a random process. Some numerical experiments are also made to demonstrate the superior performance of the novel method under different power supply demands. Meanwhile, with a given constraint of reliability, one method for optimizing the installation distance of components is proposed to minimize system volume.
