سال انتشار: ۱۳۹۰

محل انتشار: ششمین کنفرانس بین المللی زلزله شناسی و مهندسی زلزله

تعداد صفحات: ۹

نویسنده(ها):

m Emrani Nooshabadi – School of civil Engineering, College of Engineering, The University of Tehran, P.O. Box 11365-4563,Tehran, Iran
a Noorzad – School of civil Engineering, College of Engineering, The University of Tehran, P.O. Box 365-4563,Tehran, Iran
h Yousefi – School of civil Engineering, College of Engineering, The University of Tehran, P.O. Box 365-4563,Tehran, Iran

چکیده:

A stabilized wavelet-based scheme is used to simulate vibration of structures. The method is a kind of projection scheme, where operators are projected to wavelet space. Derivatives with respect to time are directly projected to wavelet space; then the whole solution is captured in thewavelet space. Consequently the solution in time is attained by an inverse transform. Using a fewer number of initial sampling points in the simulation lead to a larger time steps in modeling. This feature will increase the speed of computation. In fact operators in the wavelet space aresparse and narrow banded. This means a cost effective computation, which is desirable in simulation, especially in the multi-degrees of freedom systems (a kind of semi modal analysis). Finally effectiveness and accuracy of the proposed method are demonstrated by some examples, including single degree of freedom systems.