Abstract

Nonlinear Wave Effects in a Zone of Power Seismic Vibrators

B.M.Glinsky, V.V.Kovalevsky, M.S.Khairetdinov (Institute of Computational Mathematics and Mathematical Geophysics, Novosibirsk, Russia)

e-mail: marat@opg.sscc.ru

The authors by experiments have shown, that the process of radiating of seismic wave fields with the help of power seismic vibrators is conducted by shaping of fields of other physical nature. To them, first of all, concern acoustic and electromagnetic fields. In case of failure of a requirement of a continuity of the vibrator with underlying medium the effect of physical nonlinearity in a zone of radiating of seismic transientss is exhibited. The experiments, carried out by the authors, have shown, that the effect of nonlinearity is exhibited in acoustic and electromagnetic fields. In the report the results of experimental observations of an effect of physical nonlinearity in the enumerated wave fields are reduced. The experiments were carried out in a zone of power seismic vibrators of a centrifugal type - CV-100, CV-40, and also hydroresonant vibrator GRV-50. The possible physical processes underlying an observable experiments are considered.

Section : 6