Abstract
The paper deals with the boundary element method formulation of the steady-state wave propagation through elastic media due to a source moving with constant velocity. The Greens' function for the three-dimensional full-space is formulated in a local frame of reference following the source. This is appropriate for the analysis of, for example, ground borne noise from railway or road traffic. The frequency-domain fundamental solution is derived from corresponding time-domain solution by means of Fourier transformation. To obtain a closed form solution, a part of the time-domain kernel functions is approximated, but the error which is introduced in this way is insignificant. Numerical examples are given for a moving rectangular load on an elastic half-space. The result from a boundary element code based on the derived Green's function are compared with a semi-analytic solution.
Original language | English |
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Journal | Engineering Analysis with Boundary Elements |
Volume | 27 |
Issue number | 1 |
Pages (from-to) | 23-38 |
ISSN | 0955-7997 |
Publication status | Published - Jan 2003 |
Keywords
- Frequency Domain
- Moving Source
- Green's Function
- Convection
- Elastodynamics