3차원 브레이크 디스크 모델의 온도 분포와 열응력 시뮬레이션에 관한 연구
Temperature Field and Thermal Stress Simulation of Solid Brake Disc Based on Three-dimensional Model
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초록
The brake system is an important part of the automobile safety system. The disc brake system is divided into two parts: a rotating axi-symmetrical disc, and the stationary pads. The frictional heat, which is generated on the interface of the disc and pads, can cause high temperatures during the braking process. The frictional heat source (the pads) is moving on the disc and the location is time-dependent. Our study applies a moving heat source, which is defined by the time and space variable on the frictional surface, in order to simulate the frictional heat behavior accurately during the braking process. The object of the present work is the determination of the temperature distribution and thermal stress in the solid disc by non-axisymmetric 3D modeling for repeated braking.
Abstract
The brake system is an important part of the automobile safety system. The disc brake system is divided into two parts: a rotating axi-symmetrical disc, and the stationary pads. The frictional heat, which is generated on the interface of the disc and pads, can cause high temperatures during the braking process. The frictional heat source (the pads) is moving on the disc and the location is time-dependent. Our study applies a moving heat source, which is defined by the time and space variable on the frictional surface, in order to simulate the frictional heat behavior accurately during the braking process. The object of the present work is the determination of the temperature distribution and thermal stress in the solid disc by non-axisymmetric 3D modeling for repeated braking.
참고문헌 (10)
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- Limpert, R, "Brake Design and Safety, Warrendale", PA:Science of Automotive Engineer Inc, ~ (1992)
- Arpaci, V. S, "Conduction Heat Transfer, Nedham-Heights" (1991), Ginn Press
- Lee, S, "Temperature and Coning Analysis of Brake Rotor using an Axisymme tric Finite Element Technique", Science and Technology, 3, pp.17~22 (2000)
- Lee, K. J, "Numerical Prediction of Brake Fluid Temperature Rise during Braking and Heat soaking", Proc. SAE 1999 World Congress, pp.1483~ (1999)
- Valvano, T. Lee, "Analytical Method to Predict Thermal Distortion of a Brake Rotor", Proc.SAE 2000 World Congress (2000)
- Hwang, P, "Temperature and Coning Analysis of Ventilated Brake Disc based on Finite Element Technique,Hollywood", CA. SAEInternational, 2007~ (2007)
- P. Hwang, "Temperature and Coning Analysis of a Ventilated Disc Brake using Axisymmetric Model", Proc. Asia-PES 2007 (2007)
- Hwang, P, "Transient Thermal Analysis of Disc Brake in Two-dimensional Model", 43rd KSTLE Conference, pp.49~52 (2006)