عنوان	COMPARATIVE EVALUATION OF GROUP REPLACEMENT AND RUN TO FAILURE POLICIES IN HETEROGENEOUS MULTI COMPONENT SYSTEMS
نوع پژوهش	ارائه مقاله در کنفرانس‌های علمی
کلیدواژه‌ها	Maintenance, Renewal theory, Replacement, Group Replacement Policy, Run to Failure Policy.
چکیده	Abstract. In multi component maintenance planning, economies of scale can typically be achieve through group maintenance strategies. This study focuses on a heterogeneous multi unit system and formulates two cost minimizing maintenance policies. Using renewal theoretic reasoning, the expected number of failures over a finite interval is numerically estimated, forming a key element of the models. The analysis also shows how one policy reduces to alternative strategies under specific conditions. A numerical example is provided to demonstrate the models’ performance and the resulting cost expressions.
پژوهشگران	سیده فاطمه مصطفویی والا (نفر اول)، حسن رسائی (نفر دوم)، سمیه نجفی قبادی (نفر سوم)