TY - JFULL AU - Peng Li and Chuanri Li and Tao Li PY - 2015/6/ TI - A New Reliability Allocation Method Based On Fuzzy Numbers T2 - International Journal of Medical and Health Sciences SP - 276 EP - 281 VL - 9 SN - 1307-6892 UR - https://publications.waset.org/pdf/10001222 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 101, 2015 N2 - Reliability allocation is quite important during early design and development stages for a system to apportion its specified reliability goal to subsystems. This paper improves the reliability fuzzy allocation method, and gives concrete processes on determining the factor and sub-factor sets, weight sets, judgment set, and multi-stage fuzzy evaluation. To determine the weight of factor and sub-factor sets, the modified trapezoidal numbers are proposed to reduce errors caused by subjective factors. To decrease the fuzziness in fuzzy division, an approximation method based on linear programming is employed. To compute the explicit values of fuzzy numbers, centroid method of defuzzification is considered. An example is provided to illustrate the application of the proposed reliability allocation method based on fuzzy arithmetic. ER -