Title of article :
Set a bi-objective redundancy allocation model to optimize the reliability and cost of the Series-parallel systems using NSGA II problem
Author/Authors :
Shahriari، M. R. نويسنده Faculty of Management, South Tehran Branch, Islamic Azad University, Tehran, Iran ,
Issue Information :
فصلنامه با شماره پیاپی 0 سال 2016
Abstract :
ھدف از اين مقاله كاربرد ماتريس ھاي عملياتي دقيق به جاي ماتريس ھاي عملياتي تقريبي شناخته شده براي حل معادلات
نوع لين-امدن مي باشد. تا به حال، ماتريس ھاي عملياتي دقيق توسط نويسندگان اين مقاله، تنھا براي حل معادلات ديفرانسيل
با درجه غير خطي پايين به كار رفته اند كه قدرت اصلي روش را به خوبي نشان نمي دھند. لذا، در اين مقاله روش را براي
حل معادلات لين-امدن به كار مي بريم. براي نشان دادن قدرت و دقت روش ارايه شده از ابزار ھاي نرم- 1و نرم باقيمانده
استفاده خواھيم كرد و نشان خواھيم داد كه ماتريس ھاي عملياتي دقيق دقت بالاتري نسبت به ماتريس ھاي عملياتي تقريبي از
قبل شناخته شده دارند
Abstract :
With the huge global and wide range of attention placed upon quality, promoting and optimize the reliability of the products during the design process has turned out to be a high priority. In this study, the researcher have adopted one of the existing models in the reliability science and propose a bi-objective model for redundancy allocation in the series-parallel systems in accordance with the redundancy policy- given that failure rate depends on the number of the active elements. The objective behind the proposed model is to maximize the reliability and to minimize the total cost of the system. Internal connection cost, which is the most common parameter in electronic systems, put in this model in order to simulate the real-world conditions. As the proposed model is an NP-Hard one(for getting results), the researcher adopted a Non-dominated Sorting Genetic Algorithm (NSGA II) after optimizing its operators’ rate by using Response Surface Methodology (RSM).
Journal title :
International Journal of Industrial Mathematics(IJIM)
Journal title :
International Journal of Industrial Mathematics(IJIM)