A Contact Analysis Method for Noncircular Rotating Pair with Clearance
A contact analysis and rotating pair technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low numerical solution efficiency, difficulty in obtaining convergence results, and inability to solve multi-point contact problems of rotating pairs with gaps. , to achieve the effect of good numerical stability
Inactive Publication Date: 2017-07-07
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
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.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0041] like figure 1 As shown, the present invention is a contact analysis method for a non-circular rotating pair with gaps, wherein the non-circular rotating pair is composed of a circular pin shaft and a non-circular bushing. The steps of the method are as follows:
[0042] Step 1. Discretize the continuous geometric profile of the non-circular bush, including: in the trigonometric function equation of the non-circular bush geometric profile, the rotation angle is the independent variable of the function, and its variation range is 0°-360°. When the trigonometric function equation draws the geometric profile of the non-circular bush, by adjusting the interval value of the independent variable of the rotation angle, the discrete points of the non-circular bush with different densities and uniform distribut...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More 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...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 许立新
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE