title: A lateral dynamics of a wheelchair: identification and analysis of tire parameters.
abstract: In vehicle dynamics studies, the tire behaviour plays an important role in planar motion of the vehicle. Therefore, a correct representation of tire is a necessity. This paper describes a mathematical model for wheelchair tire based on the Magic Formula model. This model is widely used to represent forces and moments between the tire and the ground; however some experimental parameters must be determined. The purpose of this work is to identify the tire parameters for the wheelchair tire model, implementing them in a dynamic model of the wheelchair. For this, we developed an experimental test rig to measure the tires parameters for the lateral dynamics of a wheelchair. This dynamic model was made using a multi-body software and the wheelchair behaviour was analysed and discussed according to the tire parameters. The result of this work is one step further towards the understanding of wheelchair dynamics.
authors.affiliation: a Integrated System Laboratory , University of Campinas (UNICAMP) , São Paulo , Brazil .
authors.forename: L C A
authors.initials: LC
authors.lastname: Silva
authors.affiliation: b Department of Electronic Engineering , Federal Technological University (UTFPR) , Ponta Grossa , Brazil .
authors.forename: F C
authors.initials: FC
authors.lastname: Corrêa
authors.affiliation: a Integrated System Laboratory , University of Campinas (UNICAMP) , São Paulo , Brazil .
authors.forename: J J
authors.initials: JJ
authors.lastname: Eckert
authors.affiliation: a Integrated System Laboratory , University of Campinas (UNICAMP) , São Paulo , Brazil .
authors.forename: F M
authors.initials: FM
authors.lastname: Santiciolli
authors.affiliation: a Integrated System Laboratory , University of Campinas (UNICAMP) , São Paulo , Brazil .
authors.forename: F G
authors.initials: FG
authors.lastname: Dedini
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D004867:Equipment Design / Q000379:methods*; D006801:Humans; D008962:Models, Theoretical; D009038:Motion; D015203:Reproducibility of Results; D012984:Software; D014910:Wheelchairs
keywords: Magic Formula; Vehicle dynamics; tires and modelling; wheelchairs