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PROPAGATION OF NON-STATIONARY RANDOM WAVES ALONG SUBSTRUCTURAL CHAINS

โœ Scribed by J.H. Lin; Y. Fan; F.W. Williams

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
407 KB
Volume
187
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Propagation of non-stationary random waves along hysteretically damped repetitive structures is investigated numerically, by extending recently developed theory. It is proved that symplectic mathematics combined with the pseudo-excitation method gives efficient solutions not only for stationary random excitations, but also for non-stationary random excitations. The numerically computed time-dependent variance curves of the displacement and internal force responses at different stations of a substructural chain are given as an example.

๐Ÿ“œ SIMILAR VOLUMES

Propagation of stationary random waves a
Propagation of stationary random waves along substructural chains
โœ J.H. Lin; Y. Fan; P.N. Bennett; F.W. Williams ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 557 KB

Stationary random waves travelling along hysteretically damped repetitive structures are investigated numerically by means of symplectic algebra. Power spectral densities and variances of various responses are computed conveniently by virtue of the ''pseudo-excitation method''.

The propagation of non-stationary waves
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โœ A.A. Saliyev; D.V. Tarlakovskii; A.M. Shukurov ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 290 KB

The axisymmetric problem of the propagation of non-stationary waves from a spherical cavity in the plane of an infinite layer filled with an acoustic medium is considered. Using methods of incomplete separation of the variables in the space of Laplace transformation in time, the problem is reduced t