Multibody Aspects of Motorcycle Modelling with Special Reference to Autosim

Modelling of the ride and handling dynamics of motorcycles using the symbolic mechanical multibody system package Autosim has been carried out since 1995. Motorcycles are principally of tree structure but their geometry is complex in relation to the tyre to road contact and tyre force and moment descriptions and to the chain drive system. They may contain closed kinematic loops, according to common suspension and steering design variations. Various aspects of the modelling problem are discussed and some implications, from a multibody standpoint, of choosing different options are exposed. Simulation results illustrate the “antisquat” behaviour of a chain drive transmission and the “anti-dive” behaviour of a Telelever front suspension system.

[1]  R. S. Sharp.  A brief commentary on the paper “The Effects of Lateral Front Fork Flexibility---” by P. T. J. Spierings. , 1981 .

[2]  Yoshitaka Tezuka,et al.  Application of the magic formula tire model to motorcycle maneuverability analysis , 2001 .

[3]  Robin S. Sharp,et al.  The Stability and Control of Motorcycles , 1971 .

[4]  Javier Cuadrado,et al.  Modeling and Solution Methods for Efficient Real-Time Simulation of Multibody Dynamics , 1997 .

[5]  V. Cossalter,et al.  A Motorcycle Multi-Body Model for Real Time Simulations Based on the Natural Coordinates Approach , 2002 .

[6]  Michael W. Sayers,et al.  VEHICLE MODELS FOR RTS APPLICATIONS , 1999 .

[7]  Hans B. Pacejka,et al.  Tire and Vehicle Dynamics , 1982 .

[8]  Robin S. Sharp.  Stability, Control and Steering Responses of Motorcycles , 2001 .

[9]  Robin S. Sharp,et al.  THE INFLUENCE OF STRUCTURAL FLEXIBILITIES ON THE STRAIGHT-RUNNING STABILITY OF MOTORCYCLES , 1980 .

[10]  Phillip Barkan,et al.  Kinematics and Dynamics of Planar Machinery , 1979 .

[11]  C G Giles,et al.  STATIC AND DYNAMIC STIFFNESS AND DEFLECTION MODE MEASUREMENTS ON A MOTORCYCLE, WITH PARTICULAR REFERENCE TO STEERING BEHAVIOUR , 1983 .

[12]  Werner Schiehlen,et al.  Multibody System Dynamics: Roots and Perspectives , 1997 .

[13]  Hans B. Pacejka,et al.  MOTORCYCLE TYRE MEASUREMENTS AND MODELS , 1998 .

[14]  W. Kortüm Dlr,et al.  REVIEW OF MULTIBODY COMPUTER CODES FOR VEHICLE SYSTEM DYNAMICS , 1993 .

[15]  Simos A. Evangelou,et al.  Motorcycle Steering Oscillations due to Road Profiling , 2002 .

[16]  P. T. J. Splerings.  THE EFFECTS OF LATERAL FRONT FORK FLEXIBILITY ON THE VIBRATIONAL MODES OF STRAIGHT-RUNNING SINGLE-TRACK VEHICLES , 1981 .

[17]  R. S. Sharp,et al.  Review of Multibody Computer Codes for Vehicle System Dynamics: Problems, Requirements, Codes and Experiences with Benchmark Problems , 1991 .

[18]  Simos A. Evangelou,et al.  Advances in the Modelling of Motorcycle Dynamics , 2004 .

[19]  Robin S. Sharp,et al.  A Motorcycle Model for Stability and Control Analysis , 2001 .