Simulation and Experimental Research on Temperature Increase of Safety Gear Action of Explosive-Proof Lift

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Abstract:

The kinetic energy of lift car will be consumed by the friction between the safety gear and guide rail in emergent braking process. This will lead to remarkable temperate increase of frictional surface. Due to the explosive atmospheres in which the explosive-proof lift servers, the high temperature may result in severe explosion accident. In this paper, an finite element model is developed to analysis this progress. The transient heat flux density is derived from energy transformation progress in safety gear action, and applied as boundary condition to the finite element model. Experiments are carried out to measure the temperature increase of safety gear frictional surface, and the results show good coincidence of temperature increase tendency between experiments and simulations.

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287-292

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January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Gang Zhang, Shu-duo Rong: Explosion-proof request and examination for permissible elevators. Colliery Mechanical & Electrical Technology, 1999(5), pp.30-32.

Google Scholar

[2] Guang-zhi Liang: Study on progressive safety gear with tribophysics. China Elevator. 2009 (17), pp.31-36.

Google Scholar

[3] Lu Ni, Qing-peng Zhang: Simulation of generated heat by friction of explosion proof elevator safety gear and guide rails. Foreign Electronic Measurement Technology, 2010, 29(11), pp.21-23.

Google Scholar

[4] Shi-ming Yang, Wen-quan Tao: Thermal Transfer. Higher Education Press, Beijing (2006).

Google Scholar

[5] Q. Chen, D.Y. Li: A computational study of frictional heating and energy conversion during sliding processes. Wear , 2005(259), pp.1382-1391.

DOI: 10.1016/j.wear.2004.12.025

Google Scholar

[6] Chinese Mechanical Engineering Society: China Mechanical Design Canon vol. 2. Jiangxi Science and Technology Press, Nanchang(2002).

Google Scholar

[7] Bao-tao Huang, Gong-yun Liao and Jing-fang Zhang: Analytical method of interlayer contact fettle in semi-rigid-base bituminous pavement. Journal of Southeast University (Natural Science Edition), 2007, 37(4), pp.666-670.

Google Scholar