越野车橡胶履带、橡胶带和橡胶衬套履带在弯曲振动下弹簧阻尼特性的建模和实验鉴定

IF 2.4 3区 工程技术 Q3 ENGINEERING, ENVIRONMENTAL
Jakub Chołodowski
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引用次数: 0

摘要

本文提出了一种预测越野车辆橡胶履带、橡胶带和橡胶套金属链履带弯曲振动所造成的能量损失的模型,并建立了一个试验台和试验程序来确定该模型的力学参数。轨道或皮带由由转动关节连接的离散刚性链接链表示,并且在每个关节中与多个麦克斯韦单元平行放置一个离散弹簧元件,以捕获真实轨道或皮带的弯曲刚度和阻尼。通过对实际轨道或皮带在循环弯曲作用下的试验,得到了接头的力学参数。每个节点由三个、四个或五个麦克斯韦单元组成的模型最成功地预测了样品橡胶轨道对循环弯曲的响应。该方法所识别的履带弹簧阻尼特性可用于履带车辆与土壤相互作用的仿真研究。此外,悬架系统的橡胶衬套、橡胶扭力弹簧、充油减震器和橡胶扭力减震器等车辆部件可以用该方法进行测试,以获得车辆动力学模拟所需的弹簧阻尼特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modelling and experimental identification of spring-damping properties of the off-road vehicle rubber tracks, rubber belts, and rubber-bushed tracks subjected to flexural vibrations

In the article, a model for predicting the energy losses caused by the flexural vibrations of rubber tracks, rubber belts, and rubber-bushed metal link-tracks for off-road vehicles is proposed, and a test stand and an experimental procedure are developed to identify the mechanical parameters of this model. The track or belt is represented by a chain of discrete rigid links connected by revolute joints, and a discrete spring-element is placed in parallel with multiple Maxwell-elements in each joint to capture the flexural rigidity and damping of the real track or belt. The mechanical parameters of the joint are found by testing real tracks or belts under cyclic bending. The models consisting of three, four, or five Maxwell-elements per joint are the most successful in predicting the response of a sample rubber track to cyclic bending. The spring-damping properties of tracks and belts identified with the method discussed herein can be applied in simulation studies on the interaction of tracked vehicles and soil. Furthermore, vehicle elements such as rubber bushings for suspension systems, rubber torsion springs, and oil-filled and rubber torsion dampers can be tested with this method to find their spring-damping properties required by vehicle dynamics simulations.

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来源期刊
Journal of Terramechanics
Journal of Terramechanics 工程技术-工程:环境
CiteScore
5.90
自引率
8.30%
发文量
33
审稿时长
15.3 weeks
期刊介绍: The Journal of Terramechanics is primarily devoted to scientific articles concerned with research, design, and equipment utilization in the field of terramechanics. The Journal of Terramechanics is the leading international journal serving the multidisciplinary global off-road vehicle and soil working machinery industries, and related user community, governmental agencies and universities. The Journal of Terramechanics provides a forum for those involved in research, development, design, innovation, testing, application and utilization of off-road vehicles and soil working machinery, and their sub-systems and components. The Journal presents a cross-section of technical papers, reviews, comments and discussions, and serves as a medium for recording recent progress in the field.
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