The Research Of Fuzzy Reliability In The Fuzzy Reliability Analysis Of Electical Apparatus

Since the last century mid-80s, domestic and foreign scholars come to realize the limitations of conventional reliability design theory, carried out substantial and useful exploration on how to apply fuzzy math to the problem of reliability analysis. Since the design method of fuzzy reliability of a late start, has not yet formed a complete theory, but in some ways or get some achievements. Development to today, most studies of fuzzy reliability in the mechanical field, a lot of mechanical experts, scholars have expressed a lot of paper, and put forward their own insights about the fuzzy reliability measure way , experts such as Yuge Dong, Hongzhong Huang have got significant achievements. In the electrical field, more research is based on probability theory and mathematical statistics methods to discuss reliability Indicator, reliability testing, reliability design and reliability management, and has achieved excellent results, but the article about fuzzy reliability of electrical products is very few.In this paper, study how to put fuzzy mathematical theory into fuzzy reliability analysis of electrical products. Randomly selected a number of parameters of electrical products, analysis of the nature of each parameter to determine these parameters are suitable for regular variable or is more suitable for fuzzy variable expression. Introduction to the basics of fuzzy mathematics briefly, discusses the evolution of fuzzy reliability formula, point out the membership function is the key to the calculation of reliability, and describes the current methods commonly used in the calculation of reliability. Take the coil temperature rise for a example, calculate the coil reliability under the influence of temperature rise.