Surface Displacement Field of a Coated Elastic Half-Space Under the Influence of a Moving Distributional Load
Öz
An analysis of the distributed moving load along the surface of a coated half space is presented. The formulation of the problem depends on the hyperbolic-elliptic asymptotic model developed earlier by the authors. The integral solution of the longitudinal and transverse displacements along the surface for the sub and super-Rayleigh cases are obtained by using the uniform stationary phase method. Numerical comparisons of the exact and asymptotic solutions of the longitudinal displacement are illustrated for the certain cross-sections of the profile.
Anahtar Kelimeler
3D elasticity,Asymptotic Model,Moving Load,Surface Wave,Thin Layer.
Kaynakça
- Zhu XQ and Law SS. Dynamic load on continuous multi-lane bridge deck from moving vehicles. Journal of Sound and Vibration 2002; 251: 697-716
- Cao Y, Xia H and Li ZA. Semi-analytical/FEM model for predicting ground vibrations induced by high-speed train through continuous girder bridge. Journal of Mechanical Science and Technology 2012; 26: 2485-2496.
- Agostinacchio M, Ciampa D, Diomedi M, and Olita S. Parametrical analysis of the railways
- El Kacimi A, Woodward PK, Laghrouche O, and Medero G. Time domain 3D finite element
- Achenbach JD. Wave propagation in elastic solids, North-Holland, Amsterdam, 1973
- Miklowitz J. The theory of elastic waves and waveguides, Elsevier, 2012
- Kaplunov J, Zakharov A and Prikazchikov DA. Explicit models for elastic and piezoelastic surface waves. IMA J. Appl. Math. 2006; 71: 768-782
- Chadwick P. Surface and interfacial waves of arbitrary form in isotropic elastic media, J. of Elasticity 1976; 6: 73-80
- Courant R and Hilbert D. Methods of Mathematical Physics, John Wiley & Sons, 1989
- Dai HH, Kaplunov J and Prikazchikov DA. A long-wave model for the surface elastic wave in a coated half-space. Proc. R. Soc. A. 2010; 466: 3097–3116