Optimal maintaining method for equipment with performance slow degradation

Abstract

The invention belongs to the technical field of reliability engineering and relates to a method for carrying out optimal maintaining on high reliability equipment with a performance slow degradation characteristic. According to the operation of the equipment, performance degradation monitoring data is reasonably selected, and the performance degradation database of the equipment is established. The method concretely comprises the steps of constructing a dynamic performance degradation database, establishing an equipment performance degradation model, predicating the remaining life, and determining the optimal maintenance time. The invention provides a complex equipment optimal maintenance method in the condition that a product has slow performance degradation, the characteristic amount degradation of the equipment can be predicated and analyzed, the method can be used as an effective tool for predicating equipment individual life, a powerful theoretical basis and technical support are provided for the repair and maintenance of the equipment, thus the spending is saved, the unnecessary economic loss is avoided, and the method has a good engineering application value.

Description

technical field [0001] The invention belongs to the technical field of reliability engineering and relates to a method for optimally maintaining high-reliability equipment with slow performance degradation characteristics; Background technique [0002] Regarding the existing optimal maintenance based on remaining life prediction, Christer and Wang et al. have carried out relevant research; these research works are based on statistical methods, and their basic idea is: through the inspection of historical data, select the appropriate statistical The distribution model models the change process of the remaining life of the equipment, and then uses the obtained information to update the model parameters according to the relationship between the status monitoring information and the remaining life, so as to predict the remaining life of the equipment at the current moment. Based on the results of remaining life prediction, construct a maintenance model with maintenance cost as t...

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Problems solved by technology

[0003] In view of the above-mentioned prior art situation, the object of the present invention is: to provide a method to make full use of the performance degradation data measured during the slow performance change of the equipment, to scientifically predict the individual life characteristic value of high reliability equipment, and to determine on this basis The method of optimal maintenance time to solve the problem of no failure data encountered when determining the optimal maintenance time based on failure data;

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