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The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

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A frequency domain approach for parameter identification in multibody dynamics.

Stefan Oberpeilsteiner^1,2, Thomas Lauss^1,2, Wolfgang Steiner^1,2

¹1Faculty of Engineering and Environmental Sciences, University of Applied Sciences Upper Austria, Stelzhamerstrasse 23, 4600 Wels, Austria.

Multibody System Dynamics

|May 22, 2018

Summary

This summary is machine-generated.

This study introduces an efficient adjoint method combined with Fourier analysis for parameter identification in oscillating multibody systems. The approach accurately identifies amplitude response parameters, demonstrating its effectiveness in multibody dynamics.

Keywords:

Adjoint system Engine orders Fourieranalysis Frequency domain Multibody dynamics Optimization Order analysis Parameter identification Window functions

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Area of Science:

Multibody dynamics
Computational mechanics
Parameter identification

Background:

The adjoint method offers an efficient approach for inverse dynamics in engineering applications.
Parameter identification in oscillating multibody systems is crucial for accurate modeling.
Combining Fourier analysis with the adjoint method is a promising strategy for such problems.

Purpose of the Study:

To present the adjoint method, incorporating adjoint Fourier coefficients, for parameter identification.
To demonstrate the application of this method for identifying the amplitude response of oscillations.
To showcase the potential and efficiency of the proposed method through examples.

Main Methods:

Adjoint method for inverse dynamics.
Fourier analysis for oscillating systems.
Parameter identification of amplitude response using adjoint Fourier coefficients.

Main Results:

The adjoint method with adjoint Fourier coefficients is shown to be effective for parameter identification.
The proposed method successfully identifies parameters in oscillating multibody systems.
Two examples illustrate the method's potential and efficiency in multibody dynamics.

Conclusions:

The adjoint method, enhanced with Fourier analysis, provides an efficient and promising approach for parameter identification in oscillating multibody systems.
The method's ability to identify amplitude response parameters is validated.
The presented technique offers significant potential for advancing multibody dynamics applications.