Kuang Chi,Li Jing,Hu Junfeng,et al.Optimal Design of the Connecting Rod of Vibration Grinding Mills Based on Ansys Workbench[J].Journal of Mechanical Transmission,2023,47(06):57-64.
Kuang Chi,Li Jing,Hu Junfeng,et al.Optimal Design of the Connecting Rod of Vibration Grinding Mills Based on Ansys Workbench[J].Journal of Mechanical Transmission,2023,47(06):57-64. DOI: 10.16578/j.issn.1004.2539.2023.06.009.
Optimal Design of the Connecting Rod of Vibration Grinding Mills Based on Ansys Workbench
In order to solve the problem of fracture failure of the existing vibration grinding mill connecting rod within the design service life
the structural optimization design of the connecting rod is proposed. Firstly
the kineto-static analysis is used to solve the external force applied to the crank-slider mechanism in one motion cycle
which is used as the theoretical basis for the subsequent strength analysis. Secondly
Ansys Workbench is used to complete the static strength analysis and fatigue strength analysis of the connecting rod. It is determined that the failure of the connecting rod is caused by insufficient fatigue strength. Finally
the response surface methodology is used to optimize the design of the connecting rod. The objective of the optimization is to minimize the mass of the connecting rod
and the optimized constraint is that the fatigue strength of the connecting rod meets the standard. This optimization design determines the appropriate transition fillet radius
thin end ring thickness and shaft width. The maximum tensile load equivalent stress of the optimized connecting rod is reduced by 58.7%
and the fatigue life is increased by 1.4 times. The optimized connecting rod meets the operation requirements.
关键词
连杆曲柄滑块机构动态静力分析有限元分析响应面优化设计
Keywords
Connecting rodCrank-slider mechanismKineto-static analysisFinite element analysisResponse surface optimization design
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