APPLICATIONS OF SUPPORTABILITY ASSESSMENT METHOD OF SYSTEM STATUS QUATION IN MATERIAL INTEGRATED LOGISTICS SUPPORT ENGINEERING
Supportability assessment is an important technology for the user, in materiel integrated logistics support (ILS) and acquisition items management, to carry on the supportability analysis, assessment, trade-off, inspection, and decision-making. The supportability assessment technology was studied with linear system state equation method. Firstly, to define system state set S, which is a combination of equipment state set E and supporting resources state set G. The elements of the set S are the orderly 2-tuples of the combination of coordinate set E and coordinate set G. That is, the universal set S can be regarded as a collection of all events existing in the process of materiel operation, maintenance, and support. Subsequently, to establish a system state equation, in which the event element in set S has a probability xi belonging to vector X(t)at any moment t. The system state equation of N unit at t moment is X(t)=S(t)X(t)Initial condition X0=X(t)|t=0=(1,0,...,0)T. S(t) is a status matrix.X(t)=(x0,x 1,…,xi,…,xn )T is the differential of state vector. The difference of this equation from the general linear system is using probability vector to describe materiel. Thirdly, to get solution of balanced state vector X(t) and attain the result of availability of the system. Let x (∞) be the balanced state vector of the system, then for state vector X(t)we obtain lim(t→∞)X(t)-X(∞)=0,X(∞)is independent on initial time. Therefore, availability of the system is given by As=C X (∞).C is the coefficient matrix, C=ci i =1,2,...,n ci=0 or 1. Finally, apply the conclusion of this paper for establishing Por model and supportability assessment of complex system consisting of main equipment states and supporting resource states. This assessment integrated the reliability and maintainability parameters of the main equipments and supporting resource parameters.
Availability Supportability Assessment System State Equation Integrated Logistics Support
Zuo-fu Tan Qi-xian Tang bo-zheng Tan
Chongqing Area Engineering Representative Office, Yuzhou Road,Chongqing,400039, China Chongqing Tiema industry corporation company, Yangjiaping Main street,400050,China
国际会议
北京
英文
1506-1513
2008-10-27（万方平台首次上网日期，不代表论文的发表时间）