摘要
以机械振动采收果树为研究对象,利用ANSYS Workbench软件对机械振动采收果树枝干进行动力学研究。通过Pro/E 5.0参数化方法建立果树枝干三维实体模型,将模型简化处理后导入ANSYS Workbench中进行仿真分析[1],对果树枝干进行10阶模态分析,得到果树枝干的固有频率和振型;对其进行谐响应分析,计算出果树枝干产生共振的频率、共振幅值和共振幅度最大的位置。进行室内冲击试验,找到共振频率,与有限元分析结果进行比较,表明有限元分析法可以为撞击式收获机的优化和设计提供理论依据。
Based on mechanical vibration of fruit trees as the object of study, we do kinetics research on mecnamcal w- bration of fruit trees by using ANSYS Workbench. The 3D model of fruit trees was constructed by Pro/E 5.0 parameter method, simplified model was transmitted to ANSYS Workbench. The modal analysis is carried out to obtain the natural frequencies and vibration -mode vectors of the first ten orders; its harmonic response analysis is carried out to calculate the resonance fre- quencies and amplitudes of the fruit trees, and the position of maximum resonance amplitude. Doing impact test in the lab, we can find resonance frequency, and the analysis results of finite element were verified by comparing the method of finite element analysis, so it can provide a theoretical basis for the design and optimization of mechanical vibrators.
出处
《农机化研究》
北大核心
2017年第2期37-41,共5页
Journal of Agricultural Mechanization Research
基金
国家自然科学基金项目(51465054)
