Dynamic Modeling Study on Contact-Type Viscoelastic Suspensions Used in Crawler Construction Vehicles

• Published in: Mechanics based design of structures and machines Vol. 37; no. 4; pp. 513 - 537
• Main Authors: Song, Yong, Sun, Dagang, Zhang, Xin, Zhang, Xueliang, Shi, Qinglu
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01.01.2009; Taylor & Francis
• Subjects: Applied sciences; Buildings. Public works; Construction; Construction equipments; Construction vehicle; Construction works; Contact analysis; Dynamic modeling; Dynamic tests; Dynamics; Exact sciences and technology; Finite element method; Machine components; Mathematical models; Mechanical engineering. Machine design; Springs and dampers; Stress concentration; Suspension; Vehicles; Viscoelasticity; Dynamic response; Stress concentration; High performance; Rupture; Suspension; Mechanical contact; Experimental study; Modeling; Finite element method; Dynamic contact; Vehicle suspension; Construction equipment; Construction vehicle; Tracked vehicle; Dynamic model; Contact analysis; Concentration distribution; Dynamic modeling; FE
• ISSN: 1539-7734; 1539-7742
• DOI: 10.1080/15397730903256635

A three-dimensional finite-element (FE) dynamic model is proposed to study the dynamic responses of a contact-type viscoelastic suspension used in crawler construction vehicles. Some important characteristics of the viscoelastic suspension are obtained based on the FE computation and analysis, such as the stress concentration regions, the distribution of "heat spot," the potential failure modes and positions, and so on. Suggestions for improving the dynamic performance of the suspension are put forward. The proposed model is verified by comparing the suspension's deformation results from the FE model with those from the corresponding dynamic experiment. The research methods and results are available to develop high-performance viscoelastic suspensions used in crawler construction vehicles.