Research On Optimal Allocation Method Of Reliability Allocation Of Complicated System

Currently, big of the sales amount of the business enterprise, but not high situation of actual income appeared in most of the business enterprises all.To want to turn round such present condition, we must do it from the credibility of the product.While assurancing the product credibility, lowering the product cost, and raising the competition ability of the product, just contribute to the development of the business enterprise.But we know, this process is just a process of reliability distribution of complicated system. So,it is very important to reliability distribution for a product.The initial stage of reliability allocation is a special stage. Because of a lot of factor's indetermination, there gets have the very big difference through different reliability allocation method. So" how judge the result of which reliability allocation method match most physically?" is a deserve research of problem. This text tries to resolve this problem, there are some main facts in this research as follows:(1) Carry on the thorough research to the reliability allocation method. Understood the present condition, purpose and basic principle regulations of reliability allocation method.(2) Carry on the improvement to the reliability fuzzy allocation method. Give own comprehension and improvement in factor set, judgment set and comprehensive evaluation of reliability fuzzy allocation method. On the part of determination factors weight set, though using improvement triangle fuzzy number to evaluation, reduce the errors caused by subjective factors to the utmost extent.(3) Describe the principle of AHP. Do own analysis and definition on how build up a good layer result, construct to judge the matrix and did the consistency examination. And put forward the mark degree to measure the standard,the four kinds of marks degree of AHP carry on more analytical.(4) Built up a kind of expenses function that is applicable to the reliability allocation to measure the result of the allocation method.(5) Reliability fuzzy allocation method and AHP are used on the aero-engine, comparison the two distribution results by establishment cost function. Get the optimal allocation results on cost level.