Simulation technology based on after repair and repair time product effectiveness

Abstract

This invention discloses an emulation technology based on post maintenance and the validity of products in maintenance including: a, structuring a maintenance vector or a sequence, b, structuring a fault frequency sequence, c, structuring a repairing sequence, d, computing the elements of the fault frequency sequence and reparing sequence, e, computing the validity of products and total fault frequency, which makes up some shortcomings of the Markov and Monte-Carlo method and is used in researching the influence of maintenance mode and time to product reliabilities.

Description

technical field [0001] The invention relates to a reliability simulation technology, in particular to a simulation technology based on post-event maintenance and product effectiveness during maintenance. technical background [0002] Products here refer to mechanical parts, components, mechanical subsystems or mechanical systems, such as production equipment, weaponry, aerospace devices, components in nuclear power equipment, or the equipment itself. [0003] Products usually have failures during use, and users adopt various maintenance methods according to the importance of the system, economical use, system security and other factors, such as after-the-fact maintenance, preventive maintenance, and condition monitoring maintenance to ensure the effectiveness of the system. sex. [0004] Effectiveness refers to the ability of a product to be in a state that can perform specified functions under specified conditions and within a specified time or time interval under the prem...

AI Technical Summary

Problems solved by technology

The limitations of this method are: 1) Limited by the product life distribution type and maintenance time distribution type, the life distribution of mechanical products usually does not obey the exponential distribution, but more obeys the Weibull distribution

2) When analyzing the reliability of a system composed of products on the basis of products, if only two states of products are considered, the number of Markov state transition equations and the number n of products that make up the system become 2 n relationship, the amount of calculation "explodes" as the number of products increases, and the amount of calculation is so large that it is unacceptable

The biggest advantage of this method is that it has strong adaptability and is not limited by assumptions. The disadvantages are: 1) Although the calculation amount of the simulation is smaller than that of the Markov method, the calculation amount increases with the improvement of the calculation accuracy requirements and the increase of the number of products that make up the system. also cannot be ignored

In fact, the reliability index of the Monte-Carlo method simulation is only the reliability index of a certain sample of the matrix, which is an inference of the reliability index of the sample to the matrix. randomness

Images