Effect of Material Models on Rolling Resistance of Non-pneumatic Tires with Hexagonal Spokes

M. Kiran - PES University, Department of Mechanical Engineering, India ,
M. Aswath - Bangalore Institute of Technology, Department of Mechanical Engineering, India ,
D. Athreya Shishir - PES University, Department of Mechanical Engineering, India ,
Babu Rao Ponangi - PES University, Department of Mechanical Engineering, India ,
Rammohan Bhanumurthy - Dayananda Sagar University, Department of Mechanical Engineering, India

Journal Article

02-16-01-0003

ISSN: 1946-391X, e-ISSN: 1946-3928

DOI: https://doi.org/10.4271/02-16-01-0003

Published June 27, 2022 by SAE International in United States

Effect of Material Models on Rolling Resistance of Non-pneumatic
Tires with Hexagonal Spokes

Sector:

Commercial Vehicle

Topic:

Citation: Kiran, M., Aswath, M., Shishir, D., Ponangi, B. et al., "Effect of Material Models on Rolling Resistance of Non-pneumatic Tires with Hexagonal Spokes," SAE Int. J. Commer. Veh. 16(1):33-47, 2023, https://doi.org/10.4271/02-16-01-0003.

Language: English

Abstract:

A non-pneumatic tire (NPT) has a lot of applications and is a viable option for the future, as they do not possess the problem of blowouts and air pressure maintenance. In these NPTs, the air-filled part is replaced by a flexible structure capable of withstanding the weight of the vehicle and delivering optimum performance. In the present study, endeavors have been made to analyze the rolling performance of NPTs by considering a light commercial vehicle as an application. The NPTs with three different configurations are studied by considering three hyperelastic material models for the hexagonal spoke structure and shear band under various loading conditions. Initially, static analysis for the models is conducted in two dimension (2D) and three dimension (3D) to validate the results, and these models were further extended to rolling analysis. The rolling resistance and slip ratios are obtained and compared in both 2D and 3D analyses. From the results, the least rolling resistance was observed for Type-A with the Mooney-Rivlin material model for polyurethane. The present study also includes the effect of various tread patterns on NPT Type-A with the Mooney-Rivlin material model on rolling resistance, contact patch, and contact pressure.

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