A Reliability Evaluation Method for Spur Gear Transmission System

A transmission system, spur gear technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as complex relationships

Active Publication Date: 2018-04-27
NORTHEASTERN UNIV LIAONING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the relationship between the system and the constituent parts in the transmission system is also intricate

Method used

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  • A Reliability Evaluation Method for Spur Gear Transmission System
  • A Reliability Evaluation Method for Spur Gear Transmission System
  • A Reliability Evaluation Method for Spur Gear Transmission System

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Experimental program
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Embodiment Construction

[0044] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] A gear is also a series system in the transmission process, because the failure of any tooth means the failure of the gear. Different from the chain system, each tooth in the gear system composed of multiple teeth does not bear the load at the same time, but carries the load successively with the evolution of time. It is a series system in four-dimensional space-time. The present invention calls such a system time-domain A tandem system can also be called an allosteric tandem system.

[0046] Traditionally, a chain under tensile load is defined as a typical series system. This paper calls such a series system as a simple series system, or an airspace series system, or a three-dimensional space series system. Its basic feature is that the spatial structure of the system and the functional logic relationship between the system and co...

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Abstract

The invention relates to a method for evaluating the reliability of a spur gear transmission system. The method is to obtain the number of teeth of each gear in the spur gear transmission system, the static strength probability density function of each gear and the stress function of each pair of meshing gears, and obtain the The load spectrum of the received load, and the probability density function of the stress amplitude of the load history is obtained according to the received load spectrum; the spur gear transmission system that is loaded successively with time evolution is regarded as a series system in four-dimensional space-time, that is, a series system in the instant domain, Extend the reliability of each pair of meshing teeth to the reliability of the meshing gears, and use the statistical average method to establish the reliability model of the meshing gears of the spur gear transmission system under different load histories. According to the obtained load of the spur gear transmission system Using the reliability model of the meshing gears of the spur gear transmission system under different load histories, the reliability of each pair of meshing gears in the spur gear transmission system is calculated, and then the reliability of the spur gear transmission system is evaluated.

Description

technical field [0001] The invention belongs to the field of life evaluation of mechanical systems, and in particular relates to a reliability evaluation method of a spur gear transmission system. Background technique [0002] Gear transmission is the most widely used mechanical transmission method, and gear transmission systems are widely used in various mechanical equipment. However, regarding the particularity of the gear transmission system reliability problem, no dedicated method and specific model have been proposed yet. In traditional reliability research, when it comes to gears or gear transmission systems, the gears are simply regarded as a part, or the gears are regarded as an ordinary series system, which does not reflect the change of the composition of the gear transmission system with time at all. The system is a serial system at every fixed moment, but the parts involved in the work at different moments have different particularities. [0003] Regarding the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 谢里阳白鑫
Owner NORTHEASTERN UNIV LIAONING
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