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Identification of System Physical Parameters for Vehicle Systems with Nonlinear Components

Lin, Y. and Kortüm, W. (1991) Identification of System Physical Parameters for Vehicle Systems with Nonlinear Components. In: Proc. 12th IAVSD-Symposium. 12th IAVSD-Symposium, Lyon, Frankreich, 26.08.-31.08.91.

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In this paper a time-domain direct identification method is presented for the identification of vehicle system mass, damping and stiffness matrices, as well as for parameters of nonlinear componentswhich are "linear-in-the-parameters". The method is based on least-square type of error costs which are constructed from system dynamic equation. The estimated system parameters are then tuned to minimize each of these cost functions. The parameters are directly identified from the deduced algorithm without iteration. To demonstrate the proposed identification procedure, the method is applied to a four degree-of-freedom vehicle; different nonlinear suspension components, such as cubic springs, nonlinear hydraulic and frictional dampers and their combinations are considered. It can be seen that by using the proposed method, all the unknown system parameters are identified with sufficient accuracy, low memory and computation time.

Item URL in elib:https://elib.dlr.de/27887/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1991,
Title:Identification of System Physical Parameters for Vehicle Systems with Nonlinear Components
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lin, Y.University of California, BerkeleyUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Proc. 12th IAVSD-Symposium
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Time-domain direct identification method; Mass, damping, stiffness matrices; cubic springs, nonlinear hydraulic and frictional dampers.
Event Title:12th IAVSD-Symposium, Lyon, Frankreich, 26.08.-31.08.91
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Space
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (until 2012) > Institut für Dynamik der Flugsysteme
Deposited By: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 06:48

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