Optimal Design Method of Logarithmic Modification Curve of Cylindrical Roller Bearing
A cylindrical roller bearing and optimization design technology, applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., can solve the problem of affecting the bearing capacity and service life, the verification of the modification effect is difficult to solve, and the modification effect is different And other issues
Inactive Publication Date: 2016-08-17
DALIAN JIAOTONG UNIVERSITY
View PDF3 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The deficiency of the existing logarithmic curve modification method is: the logarithmic curve modification is also used, the specific parameters of the logarithmic curve equation are different, and the modification effect is different, which affects the bearing capacity and service life of the bearing; at the same time, the logarithmic modification There is an optimization design problem in the curve; the determination of the specific parameters of the logarithmic curve equation and the verification of the modification effect are difficult to solve
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
specific Embodiment
[0042] Modification design of a cylindrical roller bearing. The basic parameters of the bearing are: rated dynamic load C r =860(kN), rated static load C 0r =1350(kN); Inner diameter of bearing inner ring is 130, outer diameter of inner ring is 150, width of single-row inner ring is 62; inner diameter of outer ring of bearing is 202, outer diameter of outer ring is 220, width of single-row outer ring is 60; number of single-row rollers is 18, diameter of rollers 26. The length of the roller is 40. There are 0.6±0.2 rounded corners at both ends of the roller, and the rounded corners and the logarithmic curve of the roller surface are smoothly transitioned.
[0043] figure 2 and image 3 It is to use the finite element analysis software for several different k of the bearing roller 1 The modification effect diagram of the logarithmic modification curve processing of the value, figure 2 It is a comparison diagram of the axial distribution curve of the maximum contact stres...
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 an optimal design method for a logarithm shaping curve of a cylindrical roller bearing. The method comprises the following steps: first, simplifying and deforming a logarithm shaping curve equation, and processing the simplified and deformed logarithm shaping curve equation, so as to enable the optimal design to be transformed into a parameter optimization problem in the simplified and deformed logarithm shaping curve equation; then, applying a finite element physical simulation method to obtain a distribution regularity curve graph of contact stress, optimizing a parameter in a logarithm shaping curve equation formula through the computational analysis of multiple groups of logarithm curve equation models and the contrast of the distribution regularity curve graph of the contact stress, namely performing optimal design on the slope of a logarithm curve and camber quantity of shaping, so as to design the optimal shaping curve corresponding to the geometric shapes of applied load and a shaped element.
Description
technical field [0001] The invention belongs to the technical field of bearings, in particular to a design method of a cylindrical roller bearing. Background technique [0002] Modified roller bearings are gradually replacing traditional straight generatrix roller bearings in many important areas. The early contact fatigue pitting between the rolling elements and raceways of traditional straight generatrix roller bearings often occurs on the rollers or raceways near the end of the rollers, because the rolling elements of straight generatrix roller bearings There is boundary stress concentration at both ends, that is, "edge effect". The generation of "edge effect" greatly reduces the fatigue life of the bearing, because research shows that the life of the bearing is inversely proportional to the 7th power of the stress. In order to overcome this "edge effect", a lot of theoretical analysis and experimental research have been carried out. As early as the late 1930s, Lundber...
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 魏延刚赵静
Owner DALIAN JIAOTONG UNIVERSITY