CAJ | 학술논문

目前，基于性能退化数据的可靠性分析已成为有效而节约成本的可靠性评估方法，现有关于此方面研究的文献大多局限于研究单特征量的情形，而许多产品具有多个性能退化量。针对产品具有多个性能参数的特点，提出了基于多参数距离分析的可靠性分析方法，探讨并提出多性能参数距离、距离失效阈值的概念，给出参数加权因子的求解方法。弥补了现有方法基于多元正态联合概率密度函数假设致使求解过程较复杂等不足。最后通过仿真实例验证了方法的有效性。
목전，기우성능퇴화수거적가고성분석이성위유효이절약성본적가고성평고방법，현유관우차방면연구적문헌대다국한우연구단특정량적정형，이허다산품구유다개성능퇴화량。침대산품구유다개성능삼수적특점，제출료기우다삼수거리분석적가고성분석방법，탐토병제출다성능삼수거리、거리실효역치적개념，급출삼수가권인자적구해방법。미보료현유방법기우다원정태연합개솔밀도함수가설치사구해과정교복잡등불족。최후통과방진실례험증료방법적유효성。
The reliability analysis based on performance degradation data has become an effective and economic assessment approach in nowadays .The existed researches mainly limited to one performance measure .However,many products have multiple performance measures .Therefore,we proposed a reliability analysis approach based on multivariate distance analysis,and presented the concepts of multiple performance measure distance and failure threshold of distance .A method for solving the weights was also given,which could compensated for shortcoming of complexity of the existed method based on the assumption of multivariate normal joint probability density function .Simulation examples demonstrated the validity of this approach .