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Common underlying steering curves for motorcycles in steady turns

Karanam, Venkata Mangaraju and Chatterjee, Anindya (2011) Common underlying steering curves for motorcycles in steady turns. In: Vehicle System Dynamics, 49 (6). pp. 931-948.

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Abstract

We study the steady turn behaviours of some light motorcycle models on circular paths, using the commercial software package ADAMS-Motorcycle. Steering torque and steering angle are obtained for several path radii and a range of steady forward speeds. For path radii much greater than motorcycle wheelbase, and for all motorcycle parameters including tyre parameters held fixed, dimensional analysis can predict the asymptotic behaviour of steering torque and angle. In particular, steering torque is a function purely of lateral acceleration plus another such function divided by path radius. Of these, the first function is numerically determined, while the second is approximated by an analytically determined constant. Similarly, the steering angle is a function purely of lateral acceleration, plus another such function divided by path radius. Of these, the first is determined numerically while the second is determined analytically. Both predictions are verified through ADAMS simulations for various tyre and geometric parameters. In summary, steady circular motions of a given motorcycle with given tyre parameters can be approximately characterised by just one curve for steering torque and one for steering angle.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: motorcycle;steering torque;steering angle;steady turn; circular path
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 15 Jun 2011 07:07
Last Modified: 15 Jun 2011 07:07
URI: http://eprints.iisc.ernet.in/id/eprint/38208

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