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Analysis method of spring fatigue life

An analysis method and technology of fatigue life, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems that cannot truly reflect the fatigue life of materials and cannot be directly adopted by engineering

Active Publication Date: 2020-01-24
SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The determination of the material fatigue life curve in the prior art is all measured on the standard test piece, which cannot truly reflect the fatigue life of the material in the actual use environment, and cannot be directly used in engineering

Method used

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  • Analysis method of spring fatigue life
  • Analysis method of spring fatigue life
  • Analysis method of spring fatigue life

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Embodiment Construction

[0035] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily realize them. Also, for clarity, parts not related to describing the exemplary embodiments are omitted in the drawings.

[0036] In the present disclosure, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of features, numbers, steps, acts, components, parts or combinations thereof disclosed in the specification, and are not intended to exclude one or a plurality of other features, numbers, steps, acts, parts, parts or combinations thereof exist or are added.

[0037] In addition, it should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings...

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Abstract

The embodiment of the invention discloses an analysis method of a spring fatigue life. The analysis method comprises the steps that a stress-cumulative action number curve is established; a stress-life curve of a to-be-tested spring material is obtained; stand stress data corresponding to all cumulative action numbers are obtained according to the stress-life curve; the stress corresponding relationship between standard stress data and tested stress data is established; limit stress corresponding to the limit life of the to-be-tested spring material is obtained on the stress-life curve; basedon the stress corresponding relationship, limit testing stress corresponding to the limit stress is obtained; and based on the limit testing stress and the stress-cumulative action number curve, the limit testing life is predicted and serves as the fatigue life of a to-be-tested spring. According to the technical scheme, the fatigue life of a spring piece in the actual using environment can be truly reflected, thus engineering personnel can know potential safety hazards in time, and equipment damage is avoided.

Description

technical field [0001] The present disclosure relates to the technical field of fatigue life analysis, in particular to an analysis method for spring fatigue life. Background technique [0002] The spring is a basic component with buffering and shock absorbing functions, and its quality affects the operation safety of the equipment. The fatigue life analysis of the spring can provide reference indicators for the normal operation of the equipment and avoid potential safety hazards. The essence of spring fatigue life analysis is to determine the fatigue life curve of the spring material. On the fatigue life curve, the smaller the stress, the longer the fatigue life. The determination of the material fatigue life curve in the prior art is all measured on the standard test piece, which cannot truly reflect the fatigue life of the material in the actual use environment, and cannot be directly used in engineering. Contents of the invention [0003] In order to solve the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 刘博冯兴鲁孔令强王森宋绍鹏
Owner SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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