Publication detail

Identification of rheological model parameters by means of nonlinear optimization in GAMS

PÍŠTĚK, V. MAUDER, T. KLIMEŠ, L.

Original Title

Identification of rheological model parameters by means of nonlinear optimization in GAMS

English Title

Identification of rheological model parameters by means of nonlinear optimization in GAMS

Type

conference paper

Language

en

Original Abstract

The paper presents results of the application of GAMS optimization software and CONOPT solver for nonlinear optimization problems to identify multi-parameter elastomer rheological models. The solution is based on the experimentally set frequency-dependent dynamic stiffness of the elastomeric parts. Measured waveforms of dynamic stiffness are approximated using multi-parameter rheological models. A generalized Kelvin model has been used for rubber silentblocks of a tractor cab mounting. The CONOPT solver has shown a significantly faster convergence and better accuracy of the calculation compared with the previously used classical non-linear Gauss-Newton least square optimization technique.

English abstract

The paper presents results of the application of GAMS optimization software and CONOPT solver for nonlinear optimization problems to identify multi-parameter elastomer rheological models. The solution is based on the experimentally set frequency-dependent dynamic stiffness of the elastomeric parts. Measured waveforms of dynamic stiffness are approximated using multi-parameter rheological models. A generalized Kelvin model has been used for rubber silentblocks of a tractor cab mounting. The CONOPT solver has shown a significantly faster convergence and better accuracy of the calculation compared with the previously used classical non-linear Gauss-Newton least square optimization technique.

Keywords

elastomer, hysteretic damping, rheological model, generalized Kelvin model, optimization, dynamic stiffness, rubber silentblock

RIV year

2014

Released

25.06.2014

Publisher

Brno University of Technology

Location

Brno

ISBN

978-80-214-4984-8

Book

Proceedings of 20th International Conference on Soft Computing MENDEL 2014

Pages from

347

Pages to

352

Pages count

6

Documents

BibTex


@inproceedings{BUT108133,
  author="Václav {Píštěk} and Tomáš {Mauder} and Lubomír {Klimeš}",
  title="Identification of rheological model parameters by means of nonlinear optimization in GAMS",
  annote="The paper presents results of the application of GAMS optimization software and CONOPT solver for nonlinear optimization problems to identify multi-parameter elastomer rheological models. The solution is based on the experimentally set frequency-dependent dynamic stiffness of the elastomeric parts. Measured waveforms of dynamic stiffness are approximated using multi-parameter rheological models. A generalized Kelvin model has been used for rubber silentblocks of a tractor cab mounting. The CONOPT solver has shown a significantly faster convergence and better accuracy of the calculation compared with the previously used classical non-linear Gauss-Newton least square optimization technique.",
  address="Brno University of Technology",
  booktitle="Proceedings of 20th International Conference on Soft Computing MENDEL 2014",
  chapter="108133",
  howpublished="print",
  institution="Brno University of Technology",
  year="2014",
  month="june",
  pages="347--352",
  publisher="Brno University of Technology",
  type="conference paper"
}