Time-varying reliability analysis method and device

An analysis method and reliability technology, applied in neural learning methods, biological neural network models, instruments, etc., can solve problems that are difficult to meet and have high reliability

Inactive Publication Date: 2018-02-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the relatively high reliability requirements of the mechanism system on the aircraft, the existing technical solutions are difficult to meet the requirements of further optimizing the design of the mechanism system on the aircraft

Method used

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  • Time-varying reliability analysis method and device
  • Time-varying reliability analysis method and device
  • Time-varying reliability analysis method and device

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Embodiment Construction

[0051] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, specific details are provided in order to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details being omitted, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solutions ha...

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Abstract

The invention discloses a time-varying reliability analysis method and device, and relates to the technical field of the optimum structural design. The method comprises the following steps: performingkinematics analysis and dynamics analysis on a to-be-analyzed mechanism so as to determine a distribution parameter influencing the reliability of the to-be-analyzed mechanism; establishing a parameterization model based on the determined distribution parameter, defining an invalid mode and establishing a corresponding limit state function; and performing time-varying reliability analysis on theto-be-analyzed mechanism based on the parameterization model and the limit state function. The method disclosed by the invention contains the time-varying reliability degree and time-varying reliability sensitivity analysis, the parameter with large influence on the reliability of the to-be-analyzed mechanism can be identified under an uncertain environment, and the influence mechanism of each parameter can be analyzed, and then the reference can be provided for the optimum design of the to-be-analyzed mechanism.

Description

technical field [0001] The present disclosure relates to the technical field of structural optimization design, in particular, to a time-varying reliability analysis method and a time-varying reliability analysis device. Background technique [0002] Each mechanism on the aircraft is a relatively complex mechanism. Taking the landing gear mechanism as an example, the output performance of the landing gear mechanism is affected by many factors, and errors will occur in the stages of design, assembly, and operation. Before the landing gear mechanism is in operation, its errors are caused by insufficient manufacturing and assembly precision, such as size, shape errors, and inaccurate installation positions. After the landing gear mechanism starts to operate, certain errors will also be caused due to friction, wear and deformation under force between parts or between parts and the ground. The retraction and extension movement of the landing gear mechanism is a dynamic process. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/08
CPCG06F30/15G06F2111/08G06F2119/06G06N3/08
Inventor 魏鹏飞岳珠峰王艳艳
Owner NORTHWESTERN POLYTECHNICAL UNIV
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