Engineering Transactions, 41, 3-4, pp. 337-350, 1993

On Dynamic Properties of Two Models of Beam on Nonlinear Foundation Subjected to Moving Load

A. Grzyb
Cracow University of Technology, Rail Vehicle Institute, Kraków
Poland

The subjects of consideration are the infinite Bernoulli - Euler and Timoshenko models of a beam resting on a nonlinear visco-elastic foundation. The beams are subjected to a distributed inertialess loading constant in a given sector and moving with a constant velocity. Nonlinearity of the foundation was assumed in the form of a piece-wise linear characteristic of elasticity. Results obtained for the Bernoulli - Euler beam have been compared to the corresponding results obtained for a Timoshenko beam. The considered problems may find same applications in modern transportation systems.

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References

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R.BOGACZ and A.GRZYB, On nonlinear waves propagation in Timoshenko beam subjected to a moving distributed loading, Proc. Noise Control 92, 39-42, Kraków 1992.

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A.GRZYB, Waves in Bernoulli-Euler beam on visco-elastic foundation generated by a moving load [in Polish], Proceedings of the XXXIX Open Seminar on Acoustics OSA'92, 181-192, Kraków 1992.




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