Determination of mass, damping and stiffness matrices using structural and parametric identification of linear vehicle frame models

P. Michelberger, A. Keresztes, P. Várlaki, J. Bokor

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The paper deals with some important problems of determination of mass, damping and stiffness matrices using identification of linear vehicle dynamic models. The body of the vehicle is considered as distributed parameter system wich can be described by partial differential equations and the parameters represent mass, stiffness and damping distributions. Using finite elements method the body dynamics can be modelled as concentrated parameter system given by second order vector differential equations. For this case the directly identified parameters of discrete models are sophisticated functions of physical parameters of continuous models. Therefore, it is very important to choose the suitable discrete model class for an effective and reliable solution of the above problem. In the paper special time-domain maximum likelihood method is applied to estimate the coefficients in the transfer matrix of the body and to ensure a direct relationship between the transfer matrix, the modal and physical parameters of the body.

Original languageEnglish
Pages (from-to)252-264
Number of pages13
JournalVehicle System Dynamics
Volume17
Issue numbersup1
DOIs
Publication statusPublished - Jan 1 1988

Fingerprint

Stiffness matrix
Identification (control systems)
Damping
Maximum likelihood
Partial differential equations
Dynamic models
Differential equations
Stiffness
Finite element method

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Determination of mass, damping and stiffness matrices using structural and parametric identification of linear vehicle frame models. / Michelberger, P.; Keresztes, A.; Várlaki, P.; Bokor, J.

In: Vehicle System Dynamics, Vol. 17, No. sup1, 01.01.1988, p. 252-264.

Research output: Contribution to journalArticle

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