傳動滾筒結(jié)構(gòu)優(yōu)化及參數(shù)化設(shè)計研究
[Abstract]:The driving drum is the key part of belt conveyor. Its structure and performance have an important influence on the operation of belt conveyor. Based on the analysis of the force on a light-duty transmission drum, the structure of the roller is analyzed and optimized by using finite element method, and the structure of the new type transmission drum is established. It is of great significance to the popularization and application of transmission drum. The mechanical analysis of the transmission drum is carried out, and a new structural form is proposed. The multi-objective optimization design of the new transmission drum is carried out by using the test design optimization module. Based on the transient dynamic analysis of the new transmission drum in ANSYS, the maximum equivalent stress cloud diagram and the time history of the maximum principal stress are obtained under various working conditions. The n Code Glyph Works rain flow analysis module is used to count the time history curve of the transmission drum, and the load spectrum is extrapolated and superimposed. Based on the theory of fatigue life prediction, the fatigue life and fatigue sensitivity of transmission drum are analyzed by Stress Life module, and the damage histogram of transmission drum and the curve of minimum fatigue life of transmission drum under the influence of overload and residual stress are obtained. The results show that the driving drum has good mechanical properties and the minimum fatigue life is about 783 days. Both overload and residual stress have obvious influence on the fatigue life of transmission drum. The new transmission drum is redeveloped by VS2010 and Pro Toolkit tool of Creo2.0, and an interactive and friendly parameterized program is obtained. The maximum stress of the improved drive drum is reduced by 6.5 and the quality is reduced by 40 percent, thus saving the production cost. The improvement of this type of transmission drum has certain generality. The light weight analysis and optimization results have certain reference value for the design of transmission drum.
【學位授予單位】:華北理工大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TH222
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