Contact analysis method of gap-containing noncircular rotating pair

Abstract

The invention discloses a contact analysis method of a gap-containing noncircular rotating pair. The noncircular rotating pair is composed of a circular pin shaft and a noncircular lining. The contact analysis method comprises the following steps: (1) dispersing a geometric profile of the noncircular lining to obtain a series of discrete points; (2) circularly judging the position relationship between each discrete point and the geometric center of the pin shaft at any moment of carrying out numerical integration on a dynamic model of a gap-containing noncircular rotating pair mechanical system, and determining the contact area between the pin shaft and the lining at any moment; (3) analyzing the distance between the corresponding discrete point and the geometric center of the pin shaft on the lining in any contact area, determining the maximum contact depth and judging the contact point position of the pin shaft and the lining in the maximum contact depth direction. The method disclosed by the invention provides an effective method for analyzing the dynamic characteristics of the gap-containing noncircular rotating pair mechanical system. The method disclosed by the invention has the advantages of controllable solution precision and efficiency, and the like and is stable in numerical calculation and easy to converge.

Description

technical field [0001] The invention relates to a dynamic analysis method of a mechanical system with gaps, in particular to a contact analysis method of a non-circular rotating pair with gaps. Background technique [0002] Due to the existence of manufacturing and assembly errors, there will be gaps in the rotating pairs of the connecting components in the mechanical system. During the long-term operation of the mechanical system, friction and wear will further expand the clearance size of the rotating pair. With the continuous development of modern mechanical systems towards high speed and high precision, the influence of rotating pair clearance on the dynamic performance of mechanical systems can no longer be ignored. Therefore, creating a reasonable and feasible contact analysis model of the revolving pair with clearance is the key to carry out the dynamics research of the real mechanical system and obtain accurate analysis results. [0003] The existing contact analys...

AI Technical Summary

Problems solved by technology

However, the existing methods can only analyze the single-point contact problem of the rotating pair with gaps in ideal circular geometry, and cannot solve the multi-point contact problem of rotating pairs with gaps in non-circular geometries

In addition, the existing methods have problems such as low numerical solution efficiency and difficulty in obtaining convergence results.

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