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Influence of structure and material on the vibration modal characteristics of novel combined flexible road wheel

查看全文 作　　者：Yao-ji [1,2]Deng;You-qun [2]Zhao;Fen [2]Lin;Li-guo [3]Zang 高影响力作者 机构地区：[1]College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,China;[2]College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;[3]School of Automobile&Rail Transit,Nanjing Institute of Technology,Nanjing 211167,China高影响力机构 出　　处：《Defence Technology(防务技术)》索引2022年第18卷第7期,共11页高影响力期刊 基　　金：the National Natural Science Foundation of China[grant numbers 11672127,51605215];the Advance Research Special Technology Project of Army Equipment[grant number AGA19001];the Army Research and Technology Project[grant number AQA19001],the Innovation Fund Project of China Aerospace 1st Academy[grant number CHC20001];the Special funded project of China Postdoctoral Science Foundation[grant number 2019T120450];the Fundamental Research Funds for the Central Universities[grant number NP2020407]. 摘　　要：Aiming at the independent development of tracked vehicles,it is urgent to improve its mobility,passability and ride comfort,a new type of flexible road wheel with a“wheel-hinge-hub”combined structure is proposed in this study.The vibration model characteristics of the flexible road wheel were studied by the combination of numerical simulation and experiments.The superelasticity of rubber is obtained through uniaxial tensile experiment of the material and a detail three-dimensional nolinear finite element model of the flexible road wheel is established through finite element software ABAQUS.The free vibration equation of the flexible road wheel is solved by Lanczos vector direct superposition method,and its predicted modes and natural frequencies are compared with experimental results,which verifies the accuracy and reliability of the established finite element model.On this basis,the effects of various key structural or material factors on the natural frequencies of the flexible road wheel are studied using orthogonal experimental design method.Besides,the vibration modal characteristics of the flexible road wheel are also compared with those of the rigid road wheel.The research results provide a theoretical basis for the vibration and noise reduction of flexible road wheel. 关 键 词：Flexible road wheel Orthogonal experimental design Vibration modal Tracked vehicle Finite element analysis
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