Co-simulation based on ADAMS-EDEM and experimental validation of vibratory finishing system
Vibratory finishing has been widely used for surface finishing, cleaning, deburring, deflashing,and stress relieving in industry during the past 60 years.However, innovative design of the vibratory finishing machine and determination of process parameters are mainly based on experiments, which seriously hindered the application of this process.For vibratory finishing, the motion behaviors of granular media determined by vibratory excitation system dominate material removal and surface quality of workpieces processed.Systematic research on dynamic behaviors of vibratory excitation system and of granular media is a basis for optimizing the process.In this study, a dynamics model of a bowl type vibratory finishing machine was developed using the software ADAMS.To verify the dynamics model, amplitudes of container vibrations were measured by acceleration sensors.The behavior of granular media in the vibrating flow field was simulated and analyzed using the software EDEM.The add-in EALink was used to realize the data transmission from ADAMS and EDEM.So the whole simulation process is called co-simulation.The contact force of granular media acting on the workpieces and the relative velocities of granular media and workpieces were obtained through the co-simulation.Period doubling motion was found in vibratory finishing.Archard wear equation was used to analyze to predict the wear loss of workpieces corresponding to the surface quality.To compare the co-simulation results, finishing experiments were conducted for aluminum alloy 6061 workpieces fixed onto the wall of the container.The results show that great relevance lies in the simulation results and surface measurement results of workpieces processed.It was found that the co-simulation method based on ADAMS-EDEM applied in the vibratory finishing system has important theoretical and practical reference value for the design of new equipment and the optimization of the process.
Vibratory finishing dynamics model DEM model co-simulation granular media
WANG Xiuzhi YANG Shengqiang LI Wenhui WANG Yanqing
College of Mechanical Engineering, Taiyuan University of Technology, Shanxi Taiyuan, China;Shanxi Key Laboratory of Precision Machining, Shanxi Taiyuan, China
国际会议
上海
英文
157-166
2017-11-19（万方平台首次上网日期，不代表论文的发表时间）