Design method of rail transit electronic product vibration reliability

A technology of electronic products and design methods, applied in the field of vibration reliability design of rail transit electronic products, to reduce the risk of resonance, avoid vibration reliability problems, and improve reliability

Active Publication Date: 2020-03-27
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing technology, although the rail transit industry has carried out some research on the vibration reliability of products, and found and solved some vibration-related problems, it still stays in the remedy after the product reliability problems are exposed, and does not start from the source of product development and design. Avoid Vibration Reliability Issues

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  • Design method of rail transit electronic product vibration reliability
  • Design method of rail transit electronic product vibration reliability
  • Design method of rail transit electronic product vibration reliability

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Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the implementation process of how to apply technical means to solve technical problems and achieve corresponding technical effects in the present invention. The embodiments of the present application and the various features in the embodiments can be combined with each other under the premise of no conflict, and the formed technical solutions are all within the protection scope of the present invention.

[0030] During the actual operation of rail transit electronic products, when the vibration excitation frequency in the operating environment is close to the natural frequency of electronic products, resonance is prone to occur, causing electronic product failures and reducing operational reliability.

[0031] In order to facilitate the understanding of the present application, the mechanism of t...

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Abstract

The invention discloses a design method for rail transit electronic product vibration reliability. The design method comprises the following steps: acquiring vibration excitation frequency informationof the rail transit electronic product in an actual operation environment; acquiring inherent frequency information of the product based on an initial design scheme of the rail transit electronic product; carrying out matching analysis on the inherent frequency information and the vibration excitation frequency information, and when the matching condition that the inherent frequency avoids the vibration excitation frequency is met, determining an initial design scheme as a vibration reliability design scheme; otherwise, adjusting the quality and/or rigidity of the product in the initial design scheme to optimize the scheme until the vibration reliability design scheme is determined. According to the design method provided by the invention, a design scheme meeting the vibration reliabilitycan be provided, the resonance risk of the product in the operation process can be reduced to the maximum extent, and the operation reliability of the rail transit electronic product is improved.

Description

technical field [0001] The invention belongs to the technical field of rail transit electronic product design, in particular to a method for designing vibration reliability of rail transit electronic products. Background technique [0002] Vibration is one of the important factors affecting the normal operation of electronic products in the rail transit industry. During the storage, transportation and use of products, the impact of vibration on product operation reliability is ubiquitous. Statistics show that the failure of rail transit electronic equipment due to environmental factors accounts for about 51% of the total failure rate, and vibration reliability factors account for 14% of the failure rate. Judging from the on-site quality problems of existing rail transit products, some of them are related to strong vibration. With the rapid development of my country's high-speed railway transportation, the rail transportation industry has also put forward higher and higher r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15
CPCY02T90/00
Inventor 王永胜丁杰徐绍龙刘永江曾亚平臧晓斌夏亮陈俊李振鹏
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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