6HT-100型核桃分级破壳机机架的有限元分析  

The finite element analysis of 6HT-100 walnut grading and shell-breaking machine of frame

作　　者：王斌[1] 李丽丽[2] 刘德华[3] 张淑娟[3] 

机构地区：[1]山西农业大学信息学院,山西太谷030801 [2]山西农业大学信息科学与工程学院,山西太谷030801 [3]山西农业大学工学院,山西太谷030801

出　　处：《山西农业大学学报（自然科学版）》2017年第5期376-380,共5页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家自然科学基金(31271973);山西省自然科学基金(2012011030-3);山西农业大学青年科技创新项目(2016005)

摘　　要：[目的]机架是核桃分级破壳机的关键部件,为了研究其动态特性,掌握应力应变情况,明确机架在受力后的薄弱环节。[方法]首先分析该机机架的工作特性,结合核桃分级破壳机要求,确定机架结构参数;其次,利用三维实体建模软件Solid Works建立机架模型,将其通过接口导入ANSYS Workbench有限元分析软件中,对所建机架模型进行静力学和模态分析;最后求解并得到核桃分级破壳机机架的总变形图、等效应力云图、等效应变图及机架的前6阶模态频率和振型。[结果]结果表明,机架最大应力为23.48 MPa<[τ]=68.96 MPa,模态频率为7.5~66.8Hz,机架结构设计合理,能够达到工作要求。[结论]为后续优化设计奠定基础并提供参考依据。[Objective]The walnut grading and shell-breaking machine of frame is the key part of walnut grading and shell-breaking machine. In order to research the dynamic characteristic of the rack master the stress and strain, clear frame in the weak link after the force. [Methods] Firstly, by analysing of the operating characteristics of frame, deter-mined the parameters of the frame structure; secondly, the model of frame was established by using the 3D solid modeling software Solid Works, Three-dimensional model was imported into the finite element analysis software ANSYS Workbench by interface, ANSYS Workbench made the static analysis and modal analysis for the model, At last, the analysis results showed the contours of deformation, stress and strain, the first 6 natural frequencies and vibration modes were obtained, [Results]Final results showed that the maximum stress was 23.48 MPa〈[r]=68.96 MPa, the modal frequency was 7.5-66.8 Hz of frame, and the design of frame was reasonable. [Conclusion]It laid the foun-dation and provides a reference for the analysis of subsequent optimal design.

关 键 词：核桃分级破壳机 机架 ANSYS WORKBENCH 有限元分析 

分 类 号：S226.9[农业科学—农业机械化工程]