Modeling and reliability simulation method for fault mechanism triggering

A technology of failure mechanism and simulation method, applied in design optimization/simulation, electrical digital data processing, instruments, etc., to achieve scientific and reasonable reliability indicators

Active Publication Date: 2020-06-26
BEIHANG UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to propose a reliability modeling method that describes and evaluates the trigger relationship between failure mechanisms in a complex system and solves the influence of the trigger relationship between failure mechanisms in a complex system on system reliability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modeling and reliability simulation method for fault mechanism triggering
  • Modeling and reliability simulation method for fault mechanism triggering
  • Modeling and reliability simulation method for fault mechanism triggering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0068] The modeling and reliability simulation method triggered by the failure mechanism of the present invention can be applied to the analysis of various failure mechanisms. The following is an example of the conductive slip ring device involved in the sun-directed electromechanical device of the solar cell. The method is exemplarily described in detail, but obviously the present invention is not limited thereto.

[0069] The electromechanical device for solar cell orientation to the sun is a device that receives control signals and drives the solar cell array to align itself with the sun so that it can always obtain the maximum solar energy conversion efficiency. At the same time, the electric power and electrical signal on the cell array pass through the internal conductive slip ring A device that teleports into the interior of a star. The specific structure includ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a modeling and reliability simulation method for fault mechanism triggering. A physical process that a fault mechanism is triggered is described through a random process; a fault time model of two triggering relationships of a degradation-degradation type and a degradation-overstress type is provided; and different models are provided for the continuous degradation process and the discrete degradation process, so that the problem that the reliability distribution of each component is purely considered and the correlation between fault mechanisms is not considered when the reliability of the system is calculated by the traditional reliability modeling method is solved, and the fault time distribution and the reliability distribution of the system are deduced on the basis. According to the method, a new idea is provided for describing and evaluating the trigger effect in the complex system and solving the influence of the trigger effect in the complex system on thesystem reliability, and the calculated reliability index is more scientific and reasonable.

Description

technical field [0001] The invention belongs to the field of product reliability modeling, and in particular relates to a system reliability modeling method considering the mutual trigger relationship between fault mechanisms, and in particular to a modeling and reliability simulation method aimed at fault mechanism triggering. Background technique [0002] With the advancement of science and technology, products show a development trend of integration, intelligence, and complexity, and users have also put forward higher requirements for product reliability. In the reliability research of complex systems, the failure mechanism correlation has been paid more and more attention, because it will increase the joint failure probability of the system and reduce the reliability of the system. Common fault mechanism correlations include common cause failure (CCF), fault propagation (FP), functional correlation (FDEP), cascading faults, etc. They all have a common feature that trigg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F30/20G06F119/02
Inventor 陈颖李姝敏方家玥康锐李亚萍柳征勇郭其威
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap