An Analytical Tire Model with Flexible Carcass for Combined Slips. (25th December 2013)

• Record Type: Journal Article
• Authors: Xu, Nan; Guo, Konghui; Zhang, Xinjie; Karimi, Hamid Reza
• Other Names: Su Xiaojie Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2014(2014)
• Publication Date: 2013-12-25
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2014/397538
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : The tire mechanical characteristics under combined cornering and braking/driving situations have significant effects on vehicle directional controls. The objective of this paper is to present an analytical tire model with flexible carcass for combined slip situations, which can describe tire behavior well and can also be used for studying vehicle dynamics. The tire forces and moments come mainly from the shear stress and sliding friction at the tread-road interface. In order to describe complicated tire characteristics and tire-road friction, some key factors are considered in this model: arbitrary pressure distribution; translational, bending, and twisting compliance of the carcass; dynamic friction coefficient; anisotropic stiffness properties. The analytical tire model can describe tire forces and moments accurately under combined slip conditions. Some important properties induced by flexible carcass can also be reflected. The structural parameters of a tire can be identified from tire measurements and the computational results using the analytical model show good agreement with test data.