Rolling bearing reliability design method based on stress-strength interference model

A strength interference and rolling bearing technology, applied in design optimization/simulation, special data processing applications, instruments, etc., to achieve accurate dynamic reliability design, meet target life and reliability, and optimize effective effects

Active Publication Date: 2021-06-04
HENAN UNIV OF SCI & TECH
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  • Abstract
  • Description
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Problems solved by technology

[0004]Classical reliability design theory fails to consider the dynamic behavior of mechanical products, in order to make up for this lack, dynamic reliability research must be carried out

Method used

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  • Rolling bearing reliability design method based on stress-strength interference model
  • Rolling bearing reliability design method based on stress-strength interference model
  • Rolling bearing reliability design method based on stress-strength interference model

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are the Some embodiments of the invention are not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] see figure 1 , a kind of rolling bearing dynamic reliability design method based on stress-strength interference model of the present invention comprises steps:

[0021] 1. For any bearing that needs to be designed, according to the target life L n , target reliability S, rated dynamic load C r , the equivalent dynamic load P can be calculated using formula ...

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Abstract

The invention provides a rolling bearing reliability design method based on a stress-strength interference model, which considers the dynamic behavior of a rolling bearing, processes the load into a random process, converts the reliability index into the allowable range of the equivalent dynamic load of the rolling bearing based on the stress-strength interference model, and improves the reliability of the rolling bearing. And according to the reasonable value of the allowable range of the equivalent dynamic load, bearing parameters are optimized in combination with a bearing design formula, so that the requirements of the target service life and the reliability are met under the working condition. Dynamic reliability emphasizes that the operation evolution of a mechanical product is a dynamic behavior, damage can influence the dynamic characteristics of the mechanical product, and the dynamic behavior inevitably influences the reliability or failure rate of the mechanical product. The dynamic characteristics of the rolling bearing are considered, so that the dynamic reliability design of the rolling bearing is more accurate, and optimization is more effective.

Description

technical field [0001] The invention belongs to the field of reliability design of rolling bearings, and in particular relates to a reliability design method of rolling bearings based on a stress-strength interference model. Background technique [0002] Rolling bearings are important mechanical basic parts and are widely used in various fields of national economy and national defense. The running state of the rolling bearing directly affects the overall performance and life of the mechanical equipment, and is one of the key components that determine the safe and reliable operation of the mechanical equipment. Rolling bearings have always played an important role in the field of reliability application technology, and are typical products of mechanical reliability design. [0003] The reliability design of rolling bearings mainly focuses on the structural reliability design. Quantitative reliability design is usually adopted. The method used is the probabilistic design meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/20G06F111/08G06F119/02G06F119/14
CPCG06F30/17G06F30/20G06F2111/08G06F2119/02G06F2119/14Y02T90/00
Inventor 李军星李燕科邱明庞晓旭陈立海董艳方杨传猛牛凯岑
Owner HENAN UNIV OF SCI & TECH
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