Results 151 to 160 of about 2,611 (203)
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Geotechnical, Geological and Earthquake Engineering, 2008
Milutin Srbulov, Srbulov Milutin
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Milutin Srbulov, Srbulov Milutin
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Seismic excitation by space shuttles
Shock Waves, 1992Shock waves generated by the space shuttles Columbia (August 13, 1989), Atlantis (April 11, 1991) and Discovery (September 18, 1991) on their return to Edwards Air Force Base, California, were recorded by TERRAscope (Caltech's broadband seismic network), the Caltech-U.S.G.S Southern California Seismic Network (SCSN), and the University of ...
Kanamori, H. +4 more
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Response of floating platforms to seismic excitation
Engineering Analysis with Boundary Elements, 1984Abstract The nonlinear transient response of floating platforms to seaquake-induced excitation is studied taking into account cavitation effects. The motion transmitted to the LPG is assumed to consist only of vertical pulses causing the same transient water pressures at all points of the LPG bottom.
M. Arockiasamy +3 more
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On the Control of a Building Model Subject to Seismic Excitation
IFAC Proceedings Volumes, 1997Abstract The control problem of a building model, subject to seismic excitation, is considered in this paper. First, a feed-forward compensator is designed to compensate the ground acceleration; secondly, an LQG optimal feedback controller is added to the control scheme to improve the control performances.
MENINI L. +3 more
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Seismic Response of Underground Structure under Vertical Seismic Excitation
Advanced Materials Research, 2014Seismic response of shallowly buried underground under vertical seismic excitation is studied. In order to simplify the analysis two steps are adopted in the analysis. In the first step structure is looked at as rigid body, and the dynamic response of the structure under vertical seismic excitation is obtained on the basis of soil-structure dynamic ...
Cheng Zhi Qi +4 more
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A Hybrid Control of Seismically Excited Structures by Confinement of Vibrations
Journal of Vibration and Control, 2004We propose a hybrid control strategy, aimed at confining and suppressing simultaneously the vbratory motion in seismically excited structures. It is assumed that these structures are composed of n floors that are sensitive to vibrations, resulting from earthquake excitations. A number (m) of inter-story bracing elements, assumed to be the non-sensitive
Choura, S., El-Borgi, S., Nayfeh, A. H.
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Researching of Seismic Wave Excitation Technology
Advanced Materials Research, 2014Currently, the seismic wave technique increasingly used in mineral exploration, detecting buried targets etc. Conventional seismic wave excitation technique has many drawbacks. This paper summarizes the advantages and disadvantages of various seismic wave excitation technology, practical applications may need to select the appropriate source technology
Xu Fang Zhu, Bing Yan
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Seismic Excitation of the Chandler Wobble
1970Results from the elasticity theory of dislocations as well as observational evidence are presented in support of the hypothesis of seismic excitation of the Chandler wobble. There appears to be a high degree of correlation between changes in the pole path and earthquakes with M > 7.5 in the 11 year period from 1957.0 to 1968.0.
L. Mansinha, D. E. Smylie
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Seismic excitation by the space shuttle Columbia
Nature, 1991Seismic stations in southern California recorded the atmospheric shock waves generated by the space shuttle Columbia on its return to the Edwards Air Force base on 13 August 1989 (Fig. 1). In addition to the shock wave, the broad-band IRIS–TERRAscope station at Pasadena recorded a distinct pulse with a period of ~2–3 seconds, which arrived 12.5 seconds
Kanamori, Hiroo +3 more
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