摘要
采用非线性方程组有限元方法,对采摘机械臂摇杆屈曲和稳定性问题进行了分析。当采用线性有限元对物体受力情况进行分析时,传统的直接迭代会在极值点失效,而本文采用了新的弧长迭代格式,能有效解决这一计算难题。ANSYS WORKBENCH仿真结果表明:对采摘机械臂摇杆添加负载时,其位移变形范围和应变力分布范围都满足设计需求,对后续采摘机械臂摇杆的模态和瞬态动力学分析具有一定的参考价值。
It analyzed and studied the buckling and stability of the rocker of the picking manipulator by using the finite element method of nonlinear equations.When the linear finite element is used to analyze the force of the object,the traditional direct iteration will fail at the extreme point.In this paper,a new arc length iteration scheme is adopted,which can effectively solve this calculation problem.The simulation results of ANSYS Workbench show that when the load is added to the rocker of the picking manipulator,the displacement deformation range and strain force distribution range meet the design requirements,which has a certain reference significance for the modal and transient dynamic analysis of the rocker of the subsequent picking manipulator.
作者
张之红
Zhang Zhihong(School of Mechanical and Electrical Engineering,Zhengzhou Tourism College,Zhengzhou 450000,China)
出处
《农机化研究》
北大核心
2023年第9期36-39,45,共5页
Journal of Agricultural Mechanization Research
基金
河南省科技厅科技攻关项目(212102210058)。
