FEM for Brake Discs of SiC 3D Continuous Ceramic Reinforced 7075 Aluminum Alloy for CRH3 Trains Applying Emergency Braking

Abstract:

The shaft disc prepared with SiC 3D continuous ceramic frame reinforced aluminum alloy 7075 (3D-SiC/Al) composite of the CRH3 high speed train with a speed at 250 km/h was chosen as the research object, and the course of emergency brake was simulated by Cosmos. A three dimension model was established, the way of applying loads were discussed, and the temperature field and thermal stress field were obtained. The result shows that the highest temperature appears at about 57 s since braking and the value is about 373 °C. The biggest stress is about 237 MPa, appearing at about 51 s since braking, the regions distribute at the surface corresponding with the radiating ribs, and near the inner diameter. The hoop stress is larger than other directions. The result shows that the thermal stress duce to the transient temperature distribution model is released well for the distribution of the 3D continuous ceramic frame reinforced aluminum alloy 7075 structure compares with the conventional brake disc, which can satisfy the requirement of the shaft disc of the high speed train with a speed at 250 km/h applying emergency braking.

• Periodical: Applied Mechanics and Materials (Volume 120)
• Pages: 51-55
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.120.51
• Online since: October 2011
• Authors: Liang Yu, Yan Li Jiang, Sen Kai Lu, Hong Qiang Ru, Ming Fang
• Keywords: Disc Brake, Finite Element Method (FEM), High Speed Train (HST), Temperature Field

References

[1] M. Reibenschuh, Faculty of Mechanical Engineering, 2008.

[2] SIST EN 1563:1998(en). Founding – Spheroidal graphite cast irons. SIST, Ljubljana 1998.

[3] T. J. Mackin. Engineering Failure Analysis, no. 9, str. (2002), pp.63-76.

[4] G. Oder, Maribor: Faculty of Mechanical Engineering, (2008).

[5] D. Huang, W. P.Chen, S.Y. Zhang, et al. Nonferrous Met. Soc. China , Vol. 20, (2010), pp.54-58.

[6] S. Y. Zhang, S. G. Qu, Y.Y. Li, et al. Wear,Vol. 268, (2010), p.939–945.

[7] S. K. Nammi, P. Myler, G. Edwards. Materials and Design,Vol. 31,(2010),p.712–722 ,.

[8] L. Fang, B. Li, J. Zhao, et al. Journal of Materials Processing Technology ,Vol. 209, (2009), p.6124–6133.

[9] Y. S. Lee, P. C. Brooks, D. C. Barton, and D. A. Crolla. Parametric Design Studies. Int. J. Vehicle Design. Vol. 31(3),(2003), pp.330-353.

[10] Z. B. M. Ripin, 1995."Analysis of Disc Brake Squeal Using the Finite Element Method". PhD Thesis, The University of Leeds.

[11] S. Y. Zhang n, S. S. Feng. Tribology International, Vol.44, (2011), p.248–257.

[12] L.Yu, Y. L. Jiang, S. K. Lu ,et al. 1st World Congress on Integrated Computational Materials Engineering, (2011) TMS.