운영자 관점에서의 철도차량의 고정기간 신뢰성 입증 시험의 설계

A design of the fixed duration reliability demonstration test from the viewpoint of operators

The fixed duration test has been widely used in the reliability demonstration test for rolling stocks. This article deals with how to design the test statistics, acceptance criteria and the fixed duration of the MTBF(Mean Time Between Failures) demonstration test considering the consumer risk. Numerical examples are given to illustrate the dependence of the consumer risk on the test duration and MTBF requirement.