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2013 (Vol. 5, Issue: 04)
Article Information:

Impact Force Between Tramcar and Steel Beam Bumper

He Wenhai
Corresponding Author:  He Wenhai 

Key words:  Bumper, euler-bernoulli beam, impact force, simulation, SIMULINK, tramcar,
Vol. 5 , (04): 1344-1350
Submitted Accepted Published
July 05, 2012 July 31, 2012 February 01, 2013
Abstract:

Tramcar will glides fast along inclined railway when it is out of control. Steel beam bumper can prevent its motion. This kind of bumper is widely used in inclined shaft of mine where tramcar is used as auxiliary transport. There exists intense impact between tramcar and steel beam bumper. The impact force is a key parameter for designing bumper. But this force is difficult to predict. Three models are established for obtaining accurately the impact force. In these models, tramcar with its buffer is simplified as a spring-mass system. Steel beam bumper is simplified as Euler-Bernoulli Beam, single-degree-of-freedom spring-mass system and a spring without mass respectively. Simulation shows that impact forces from these models are approximate, so these three models are equivalent. The maximal impact force almost increases linearly with the increasing of mass and impact speed of tramcar. The total impact time increases only with the increasing of mass, but it is not relevant to the impact speed. Single-degree-of-freedom spring-mass model is the simplest one, so it is easy and useful to simulate the impact between tramcar and steel beam bumper for actual engineering design.
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  Cite this Reference:
He Wenhai, 2013. Impact Force Between Tramcar and Steel Beam Bumper.  Research Journal of Applied Sciences, Engineering and Technology, 5(04): 1344-1350.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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