Estimation of Dynamic Parameter of Umong Stupa Using Inverse Analysis Through Time History Method

Abstract

This article presents estimation of dynamic parameters of Umong stupa by using inverse analysis through time history method. The accelerations response of Umong stupa was measured at base and top positions. The fundamental frequency of stupa was estimated via Fourier analysis of measured acceleration response. Then, accurate values of fundamental frequency and damping coefficient were computed from the inverse analysis technique through Newmark’s time stepping method. The result shows very close value of fundamental frequency from Fourier analysis and inverse analysis technique.