到位调整法和权系数法

Reaching and Adjusting & Weight

国内外现有的各种可靠性设计最优化方法的共同点是：设计过程是一个繁复的搜索过程而所得结果不是理论上的最优值。本文指出，若Ｍ是一个Ｎ级串联系统可靠度的期望值，则Ｍ１／ｎ是系统每一级可靠度的最优值，称作“到位”，再依据３个非线性约束条件，解出各级冗裕量，由此确定系统的最优化分配，称作“调整”，二者的结合就是“到位调整法”。对复杂系统，本文提出了“权系数法”

Presently many methods for optimizing system reliability have been proposed ,but a Property common to these all methods is that the optimization of system reliability is a search process,therefore it is miscellaneous and spends a lot of vigour,This paper has proved that if M is the expected value of system reliability,then the geometric mean M 1/n is the optimum number for every stage.After that,according to three nonlinear constraints the redundancy of each stage has been solved,i.e.the optimization of system is allocated.This new method is called“reaching and adjusting”. For complicate system the “weight”is introduced.