Spare part guarantee probability calculation method and device for electromechanical universal parts

A technology of probability calculation and common parts, applied in calculation, computer-aided design, design optimization/simulation, etc., can solve problems such as waste, excessive purchase and storage of spare parts, and failure to consider the interchangeability of common parts, etc., to reduce waste of resources , the effect of satisfying the sufficiency
CN110738008AActive Publication Date: 2020-01-31NAVAL UNIV OF ENG PLA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAVAL UNIV OF ENG PLA
Publication Date
2020-01-31

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Abstract

The invention relates to a spare part guarantee probability calculation method and device for electromechanical universal parts, and belongs to the technical field of equipment spare part guarantee. The method comprises the following steps: establishing a probability matrix by utilizing the fault probability of each equipment universal part; selecting equipment for arranging general parts in columns as current equipment in sequence, sequentially calculating probability distribution conditions of the sum of faults of the general parts in other equipment by utilizing convolution operation, and finally calculating spare part guarantee probability of the current equipment according to the probability distribution conditions of the sum of faults of the general parts in the other equipment. According to the method, the fault probability of the universal part in different devices is fully considered, the guarantee probability of the current device is calculated by using the fault probabilityof other devices, the overall demand of the universal part is planned, and resource waste is reduced while the sufficiency of spare part resources is met.
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Description

technical field

[0001] The invention relates to the technical field of equipment spare parts support, in particular to a method and device for calculating the probability of spare parts support for electromechanical general-purpose parts. Background technique

[0002] The life law of electromechanical components and other units is often described by Weibull distribution, which is suitable for failures caused by aging, such as: ball bearings, relays, batteries, hydraulic pumps, gears, material fatigue parts, etc. Electromechanical common parts are electromechanical component units that are interchangeable in different types or the same type of equipment with different specifications. In this paper, the Weibull distribution is used to describe the life distribution of electromechanical general-purpose parts. The life X obeys the Weibull distribution and is recorded as X~W(A,B), and the density function of X is

[0003] Due to the high versatility of common parts, after comp...

Claims

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