When rotational components of ground motion produced by seismic surface waves are computed, the phase velocities must always be dealt with in earthquake engineering. In this paper, appropriate methods are presented to obtain the calculation formulas for the phase velocities of surface waves by apply
On mathematical modelling of absorption and dispersion of seismic waves for low frequencies
β Scribed by L. Von Wolfersdorf; L. Rost
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 407 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0170-4214
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β¦ Synopsis
Abstract
The problem of determining the dispersion and absorption of plane seismic waves by a given seismic quality factor is dealt with in the case that the quality factor tends to a positive limit as the frequency goes to zero.
General formulae are derived for the phase velocity and the attenuation coefficient by solving the corresponding RiemannβHilbert problems for analytic functions in the upper halfβplane.
π SIMILAR VOLUMES
A numerical-analytical solution to problems of seismic and acoustic-gravitational wave propagation is applied to a heterogeneous Earth-Atmosphere model. The seismic wave propagation in an elastic half-space is described by a system of first order dynamic equations of the elasticity theory. The propa