THE ALLOCATION OF SYSTEM RELIABILITY. VOLUME 1. DEVELOPMENT OF PROCEDURES FOR RELIABILITY ALLOCATION AND TESTING.

Abstract : Methods for allocating a system reliability requirements to subsystem and lower levels were investigated for four basic system types; serial, modified-serial, redundant and bimodal. An allocation model is presented for determining unit Icomponent, equipment or subsystem) reliability requirements based on such factors as feasibility of the over-all system requirement, unit/system failure relationships, unit or functional capability, relative unit state-of-the-art, duty cycles, and gross unit environment. The input data required by the model together with means for determining compliance to the allocated requirements through reliability or life tests are also discussed. (Author)