Method for computing importance in maintaining components of equipment

A computing method and technology for equipment components, applied in computing, special data processing applications, instruments, etc., can solve problems such as providing support for difficult maintenance processes, difficulty in comprehensively measuring equipment, and inability to adapt to large and complex equipment, so as to improve maintenance efficiency and reduce Maintenance cost, effect of simplified calculation steps

Inactive Publication Date: 2010-12-29
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0014] In order to overcome the shortcomings of the prior art that cannot meet the needs of large and complex equipment, it is difficult to comprehensively measure the equipment and provide support for the maintenance process, the present invention pr

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  • Method for computing importance in maintaining components of equipment
  • Method for computing importance in maintaining components of equipment
  • Method for computing importance in maintaining components of equipment

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[0039] Example 1:

[0040] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0041] Reference figure 1 The method for calculating the importance of equipment component maintenance of the present invention includes the following steps:

[0042] Step 1. According to the component set C contained in the equipment system S, each component in the component set is represented by a variable in the basic variable set X. The specific method is as follows:

[0043] according to figure 2 As shown in the structural relationship diagram of the equipment components in Example 1, it can be seen that the equipment S consists of 5 components C={C 1 , C 2 , C 3 , C 4 , C 5 }composition. Therefore, these 5 components are represented by corresponding basic variables, and the feasible values ​​of the basic variables are determined according to formula (3) to form the basic variable set X={X 1 , X 2 , X 3 , X 4 , X 5 }.

[0044] St...

Example Embodiment

[0097] Example 2:

[0098] Reference figure 1 The method for calculating the importance of equipment component maintenance of the present invention includes the following steps:

[0099] Step 1. According to the component set C contained in the equipment system S, each component in the component set is represented by a variable in the basic variable set X. The specific method is as follows:

[0100] according to Figure 4 As shown in the structural relationship diagram of the equipment components in Example 2, it can be seen that the equipment S consists of 10 components C={C 1 , C 2 , C 3 , C 4 , C 5 , C 6 , C 7 , C 8 , C 9 , C 10 }composition. Therefore, these 10 components are represented by corresponding basic variables, and the feasible values ​​of the basic variables are determined according to formula (3) to form a basic variable set X={X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , X 7 , X 8 , X 9 , X 10 }.

[0101] Step 2: According to the reliability function set R of each component p...

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Abstract

The invention discloses a method for computing importance in maintaining components of equipment, comprising the following steps: utilizing variables to express a component set in a device system; establishing a state possibility distribution set of basic variables corresponding to the components; composing the multiple components into one assembly according to the series-parallel connection structural relationship; sequentially computing a conditional probability distribution set of all implicit variables, a posterior state distribution set of the variables of the device system, a posterior state distribution set of the variables of the device and the importance in maintaining each variable in the basic variable set; sequencing the importance in maintaining all the basic variables from high to low; and determining the most important maintaining components. The invention solves the problem of mutual separation between the reliability and the structural relevance of the existing method, simplifies the computation steps, improves the computation efficiency, can effectively recognize the key component of the device system, guides the monitoring and the maintaining of the key component, effectively improves the maintenance efficiency and reduces the maintenance cost.

Description

technical field [0001] The invention belongs to the field of equipment maintenance guarantee, and in particular relates to an importance calculation method for assigning maintenance importance category information to equipment components. Background technique [0002] With the rapid development of equipment design technology, equipment manufacturing technology and information technology, traditional equipment is gradually becoming integrated and intelligent, and its internal structure and correlation are becoming larger and more complex. There is a great deal of uncertainty about the relationship. It is difficult for maintenance personnel to determine the real cause of failure and take effective maintenance measures, which brings huge challenges to equipment maintenance and guarantee work. [0003] Importance analysis is an important research content in reliability theory, and it can be used in fields such as reliability assignment and system optimization design. The syste...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 司书宾蔡志强孙树栋王宁兑红炎李淑敏赵鹏飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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