Contact dynamic simulation of 50 m antenna wheelrail based on Recurdyn

CHEN Zhiping, CHEN Qiangqiang, ZHU Nanjie, LI Zhewei

(School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018,China)

Abstract: Aiming at the contact deformation in antenna wheelrail system, some aspects of wheelrail combinations, mathematical model, contact relation, working mode, running track and so on were studied. The rigidflexible coupling model of antenna wheelrail system was based on multibody dynamics. The wheelrail system by using recurdyn software was simulated and analyzed, the stress and deformation nephogram of rail were also obtained. The maximum stress and largest deformation occurrence of wheelrail contact model were proposed, was compared the load and deformation experiment for rail measurement was designed, experimental deformation data of wheelrail designed with simulation results, the accuracy of the wheelrail contact model was verified. The results indicate that the wheelrail contact model could provide reference of wheelrail’s abrasion and impact deformation to the 50m antenna of the National Observatory, and further amendments to provide for the model.

Key words: wheelrail contact; rigidflexible coupling; dynamic analysis