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A Maintenance Effect Modeling Method Considering the Negative Effects of Maintenance

A modeling method and negative technology, applied in the direction of instrumentation, design optimization/simulation, calculation, etc., can solve problems such as harmfulness, catastrophe, product safety, reliability, performance, economy, maintainability, etc. Achieve the effect of reducing negative impact, achieving safety level, and enriching modeling forms

Active Publication Date: 2021-09-28
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this possibility is not high, it is extremely harmful. Once a failure occurs, it will have an impact on the safety, reliability, performance, economy, and maintainability of the product, and may cause catastrophic consequences.

Method used

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  • A Maintenance Effect Modeling Method Considering the Negative Effects of Maintenance
  • A Maintenance Effect Modeling Method Considering the Negative Effects of Maintenance
  • A Maintenance Effect Modeling Method Considering the Negative Effects of Maintenance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0157] Taking a high-voltage transmission line system as an example, the system maintenance effect modeling is completed, and the application analysis is carried out.

[0158] The required parameters in the model are as follows:

[0159]

[0160] After the above steps 1, 2, and 3, the system maintenance effect model is established, and the reliability of the system can be obtained from the formula (4). In the above reliability function, for the reliability solution after multiple preventive maintenance before time t Because there are many kinds of convolutions, it is difficult to simplify. Therefore, this paper uses the Monte Carlo simulation method to solve the reliability of the system. The specific method is as follows Figure 7 .

[0161] Such as Figure 8 Shown is the reliability function of the system considering the maintenance effect. Among them, Case1 indicates that only the impact of preventive maintenance work on the degradation level is considered; Case2 cons...

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Abstract

The invention provides a maintenance effect modeling method considering the maintenance negative effect, the steps are as follows: step 1, determine the system reliability model; step 2, quantitatively describe the maintenance effect; step 3, establish a system maintenance effect model; step 4, maintenance effect Model application and analysis, apply the established maintenance model considering the maintenance effect to maintenance decision-making, make maintenance decisions on the system using the maintenance strategy limited by the fault threshold, and analyze the maintenance decision results; through the above steps, the process of maintenance modeling The maintenance effect is fully considered in the system, and quantitative calculation and analysis are carried out, which makes the maintenance decision more scientific and accurate, and then realizes the best cost-effective ratio of the system, which is helpful for the operation and maintenance of the enterprise.

Description

(1) Technical field: [0001] The invention provides a maintenance effect modeling method considering the maintenance negative effect, which is a maintenance modeling method which fully considers the maintenance effect for the degradation-shock competition failure repairable system. It focuses on the maintenance effect, fully considers and quantifies the correlation between various maintenance effects (positive and negative) and failure modes, and proposes a maintenance effect modeling method based on product status and a modeling idea that different maintenance activities will produce different maintenance effects. The proposed maintenance effect model can be applied to maintenance decision-making, and it has a certain effect on improving maintenance efficiency and quality and reducing maintenance risks for important systems or facilities with high reliability such as weapons and equipment, intelligent electromechanical systems, and industrial automated production systems. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F119/02G06F119/04
Inventor 马麟刘倩楠王乃超
Owner BEIHANG UNIV
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