Constraint inner force complexity of a two-vehicle set system for piggyback transport and its processing technique strategies
YANG Jing1,WU Rongkun2,PENG Yu1,LI Hua2,PIAO Mingwei1
1. School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China;
2. Dalian R. & D. Center, Qiqihar Rolling Stock Co., Ltd., CRRC, Dalian 116042, China
Abstract：To correctly analyze inner forces in a 2-vehicle set system for piggyback transport,the relevant simplified processing technique strategies were proposed and validated for complex surfaces’contact friction problems. The multi-body system’s dynamic simulation analyses indicate that a tare or laden vehicle can realize 3 equilibrium states of trunnion axe locking,rolling track bearing and ground support and their load-transfer path changes so as to sufficiently guarantee 100 % Ro-Ro operations in road-rail transit of freight trucks or semi-trailers of containers; a topological relation graph of complex constraints is used to improve the modularization of system modeling or the modeling level of templates; based on the full correctness validation of the simulation model,the rigid-flexible coupling simulation technique is used to deeply study the effect laws of deformation compatibility,structural stability and the relevant factors,and provide necessary technical supports for optimal design of lightweight vehicle bodies; the local high stresses and their alternative changes are taken as one of important criteria to determine structural damages,so inner force features of relevant constraints should be analyzed using the rigid-flexible coupled simulation,not confined to the geometric space field.
收稿日期: 2017-03-15
出版日期: 2018-08-28
引用本文:
杨 晶1 吴荣坤2 彭 钰1 李 华2 朴明伟1. 驮背运输2车组系统内力复杂性及其处理技术对策[J]. 振动与冲击, 2018, 37(17): 185-195.
YANG Jing1,WU Rongkun2,PENG Yu1,LI Hua2,PIAO Mingwei1. Constraint inner force complexity of a two-vehicle set system for piggyback transport and its processing technique strategies. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(17): 185-195.
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