Identification of a nonlinear spring and damper characteristics of a motorcycle suspension using test ride data

Thomas Lauß, Dominik Sterl, Stefan Oberpeilsteiner, Wolfgang Steiner

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

Abstract

During test rides of motorcycles modifications are made to the suspension. In order to quantify those changes, the nonlinear spring and damper characteristics must be determined. This is usually done on a test bench. However, measurements on a test bench are closely related to high costs and high time exposure. Hence, a parameter identification after a test run, formulated as an optimization task, seems to be an auspicious approach. For this purpose a cost function is defined, which is minimized by considering the dynamics of the system. The strength of the contribution is the efficient gradient computation using the adjoint variable approach. In order to approximate the nonlinear spring and damper characteristics cubic splines are used. The values of the spline functions at specified grid points (knots) are adjusted such that the deviation between simulation and measurement is minimal.
Translated title of the contributionIdentification of a nonlinear spring and damper characteristics of a motorcycle suspension using test ride data
Original languageGerman
Title of host publication89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM)
DOIs
Publication statusPublished - 2018
Event89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) - München, Germany
Duration: 19 Mar 201823 Mar 2018
https://jahrestagung.gamm-ev.de/

Conference

Conference89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM)
CountryGermany
CityMünchen
Period19.03.201823.03.2018
Internet address

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