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Knuckle bearing reliability analysis method considering fuzzy uncertainty

A joint bearing, uncertainty technology, applied in the direction of electrical digital data processing, instruments, geometric CAD, etc., can solve the problem of low accuracy of results and achieve the effect of comprehensive reliability

Inactive Publication Date: 2020-05-15
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0003] However, in the prior art, the analysis of the reliability of the spherical plain bearing is usually only carried out from one side, and the accuracy of the obtained results is low

Method used

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  • Knuckle bearing reliability analysis method considering fuzzy uncertainty
  • Knuckle bearing reliability analysis method considering fuzzy uncertainty
  • Knuckle bearing reliability analysis method considering fuzzy uncertainty

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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 embodiments 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 same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0052] refer to figure 1As shown, as a general mechanical part, the joint bearing has the characteristics of flexible rotation, compact structure, easy assembly and disassembly, etc., and can meet the requirements of heavy load and long life. It is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface 1, which can bear a large load. According to its different types ...

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Abstract

The invention relates to the technical field of reliability analysis, and provides a knuckle bearing reliability analysis method considering fuzzy uncertainty. The method comprises the following stepsof: establishing a performance function of a joint bearing for expressing uncertainty by using a random variable and a fuzzy variable; solving a membership interval of the fuzzy variable under a preset membership level; and calculating a reliability membership function and a maximum stress point stress mean membership function of the joint bearing according to the random variable, the preset membership level, the membership interval and the performance function. According to the method, a random variable and a fuzzy variable are considered while a performance function is established; comparedwith the prior art, the reliability analysis is carried out from multiple aspects, the reliability of the knuckle bearing can be analyzed more comprehensively, and guidance can be provided for subsequent optimization design of the knuckle bearing.

Description

technical field [0001] The invention relates to the technical field of reliability analysis, in particular to a method for analyzing the reliability of joint bearings considering fuzzy uncertainty. Background technique [0002] As a general mechanical part, the joint bearing has the characteristics of flexible rotation, compact structure, easy assembly and disassembly, etc., and can meet the requirements of heavy load and long life. The accuracy of the analysis of the reliability of the spherical plain bearing is very important to ensure its normal operation. [0003] However, in the prior art, the analysis of the reliability of the spherical plain bearing is generally only performed from one side, and the accuracy of the obtained results is low. [0004] Therefore, it is necessary to provide a reliability analysis method for spherical plain bearings considering fuzzy uncertainty. [0005] The above information disclosed in this Background section is only for enhancement o...

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Application Information

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IPC IPC(8): G06F30/17G06F119/02
Inventor 周长聪岳珠峰常琦赵浩东张政李海和
Owner NORTHWESTERN POLYTECHNICAL UNIV
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