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MODAL ANALYSIS OF FRICTION BASED-ISOLATED STRUCTURES

عنوان مقاله: MODAL ANALYSIS OF FRICTION BASED-ISOLATED STRUCTURES
شناسه ملی مقاله: SEE05_307
منتشر شده در پنجمین کنفرانس بین المللی زلزله شناسی و مهندسی زلزله در سال 1386
مشخصات نویسندگان مقاله:

Navid JAMALI - PhD candidate, University of Wuppertal, Pauluskirchstrasse ۷, D-۴۲۲۸۵ Wuppertal; Germany
Wolfhard ZAHLTEN - Professor, University of Wuppertal, Pauluskirchstrasse ۷, D-۴۲۲۸۵ Wuppertal; Germany.
Christian NEUHAUS - PhD candidate, University of Wuppertal, Pauluskirchstrasse ۷, D-۴۲۲۸۵ Wuppertal; Germany.

خلاصه مقاله:
In friction pendulum isolation systems the structure is decoupled through a special teflon layer from its foundation. Because of the special geometrical form of the set, i.e. concavity of the base plate, a recentering force is induced in the system which leads to restricted permanent displacements after severe shakings. By the applying classical modal analysis to such a non-linear problem between different possible phase changes, i.e. all possible combination of sticking and sliding phases, and also using an adaptive time incrementation algorithm it is possible to simulate the behavior of such complex sets. Considering just the first few modes of vibration guarantees the desired accuracy and reduces the numerical costs of such a simulation drastically.

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/16013/