Numerical Prediction of Ride Comfort of Tracked Vehicle Equipped with Novel Flexible Road Wheels

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外文摘要：Enhancing ride comfort has always constituted a crucial focus in the design and research of modern tracked vehi-cles,heavily reliant on the driving system's performance.While the road wheel is a key component of the driving system,traditional road wheels predominantly adopt a solid structure,exhibiting subpar adhesion performance and damping effects,thereby falling short of meeting the demands for high-speed,stable,and long-distance driving in tracked vehicles.Addressing this issue,this paper proposes a novel type of flexible road wheel(FRW)characterized by a catenary construction.The study investigates the ride comfort of tracked vehicles equipped with flexible road wheels by integrating finite element and vehicle dynamic.First,three-dimensional(3D)finite element(FE)models of both flexible and rigid road wheels are established,considering material and contact nonlinearities.These models are validated through a wheel radial loading test.Based on the validated FE model,the paper uncovers the relation-ship between load and radial deformation of the road wheel,forming the basis for a nonlinear mathematical model.Subsequently,a half-car model of a tracked vehicle with seven degrees of freedom is established using Newton's second law.A random road model,considering the track effect and employing white noise,is constructed.The study concludes by examining the ride comfort of tracked vehicles equipped with flexible and rigid road wheels under vari-ous speeds and road grades.The results demonstrate that,in comparison to the rigid road wheel(RRW),the flexible road wheel enhances the ride comfort of tracked vehicles on randomly uneven roads.This research provides a theo-retical foundation for the implementation of flexible road wheels in tracked vehicles.

外文关键词：

Ride comfortFlexible road wheelFinite element modelDynamic modelTracked vehicle

作者：

Yaoji Deng、Zhiyue Wang、Youqun Zhao、Junjie Gong、Hui Shen、Fen Lin

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作者单位：

College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,China

College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

基金：

National Natural Science Foundation of ChinaInnovative Science and Technology Platform Project of Cooperation between Yangzhou City and Yangzhou University of ChinaAdvance Research Special Technology Project of Army Equipment of ChinaInnovation Fund Project of China Aerospace 1st AcademyFundamental Research Funds for the Central Universities of ChinaJiangsu Provincial Postgraduate Research & Practice Innovation Program of China

项目编号：

11672127YZ2020266AGA19001CHC20001NP2022408SJCX23_1903

出版年：

2024

DOI：

10.1186/s10033-024-01070-0

中国机械工程学报

中国机械工程学会

中国机械工程学报

CSTPCD

影响因子：0.765

ISSN：1000-9345

年,卷(期)：2024.37(4)