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Thermal Analysis of Automotive Disc Brake Using FFT-FEM

FFT-FEM을 이용한 자동차용 디스크 브레이크의 열 해석

  • Published : 2001.08.01

Abstract

Transient thermal analysis of a three-dimensional axisymmetric automotive disk brake is presented in this paper. Temperature fields are obtained using a hybrid FFT-FEM scheme that combines Fourier transform techniques and finite element method. The use of a fast Fourier transform algorithm can avoid singularity problems and lead to inexpensive computing time. The transformed problem is solved with finite element scheme for each frequency domain. Inverse transforms are then performed for time domain solution. Numerical examples are presented for validation tests. Comparisons with analytical results show very good agreement. Also, a 3-D simulation, based upon an automotive brake disk model is performed.

Keywords

Disk Brake;Thermoelasticity;Fast Fourier Transform;Finite Element Method;Thermal Analysis

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