Simulation and Experimental Research of Continuous High Impact Test Equipment

3rd International Conference on Automation, Control and Robotics Engineering

工业技术;计算机科学;无线电电子学

Li, Feiyin^1 ; Ma, Shaojie^1

School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China^1

关键词: Collision contacts;    Cylindrical structure;    Equivalent damping;    Experimental research;    Hysteretic damping;    Impact-parameter;    Nonlinear elastic force;    Simulation tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/428/1/012015/pdf
DOI  :  10.1088/1757-899X/428/1/012015

来源: IOP

【 摘 要 】

In order to realize the simulation test of key components under continuous high impact environment, a continuous high impact test equipment based on direct impact loading of multiple impact heads is designed. In view of the collision contact problem between the impact head of semi-cylindrical structure and the tested object, a mathematical model of collision contact force is established based on Hertz line contact theory and hysteretic damping model, the change of the contact force and the energy loss are described in the form of nonlinear elastic force and equivalent damping, provide theoretical support for impact parameter analysis of the test equipment. On the basis of theoretical analysis, the overload acceleration of continuous high impact test equipment is verified combined with dynamic simulation and experiment, demonstrate the rationality and feasibility of the test equipment design.