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当前位置: 首页 > 文章 > 基于灵敏度分析的木薯收获机机架结构优化设计 农业机械学报 2013,44 (12) 57+62-67
Position: Home > Articles > Structural Optimization for Rack of Cassava Harvester Based on Sensitivity Analysis Transactions of the Chinese Society for Agricultural Machinery 2013,44 (12) 57+62-67

基于灵敏度分析的木薯收获机机架结构优化设计

作  者：
廖宇兰;刘世豪;孙佑攀;马庆芬;林茂
单  位：
海南大学机电工程学院;中国长安汽车集团股份有限公司四川建安车桥分公司
关键词：
木薯收获机;机架;轻量化;灵敏度分析;优化设计
摘  要：
为了提高木薯收获机的工作性能,对其机架结构进行了多目标优化设计。在CAD/CAE协同设计平台下,对木薯收获机的机架进行静力学有限元分析和灵敏度分析,建立了多目标优化设计模型,求解后得到了6组非劣解。在所得6组优化设计方案和原方案中,采用模糊物元法和熵权法进行优选,获得了最佳机架结构设计方案。优化设计前、后的对比分析表明,机架质量减小4.29%情况下,最大变形减小27.04%,从而证明所提出的基于灵敏度分析的机架结构多目标优化设计方法是合理可行的。
译  名：
Structural Optimization for Rack of Cassava Harvester Based on Sensitivity Analysis
作  者：
Liao Yulan;Liu Shihao;Sun Youpan;Ma Qingfen;Lin Mao;College of Mechanical and Electrical Engineering,Hainan University;Sichuan Jian'an Branch,China Changan Automobile Group Co. ,Ltd.;
关键词：
Cassava harvester Rack Lightweight Sensitivity analysis Optimization design
摘  要：
In order to improve the working performance of cassava harvester,multi-objective optimization design for the rack of the harvester was conducted. Under the CAD / CAE integrated design platforms,the statics finite element analysis and sensitivity analysis of the original rack were executed. Based on the above analysis,the multi-objective optimization design model for the rack was built,and six groups of non-inferior solution were obtained. From six groups of optimization design schemes and original design scheme,the optimal design scheme was selected by using fuzzy matter-element method and entropy-weight method. Comparative analysis on rack before and after optimization design showed that the rack's mass reduced 4. 29% and the maximum deformation reduced 27. 04%,which proved that the proposed structural optimization design method for cassava harvester 's rack based on sensitivity analysis was reasonable and feasible.

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