TY - THES T1 - Finite element method and experimental investigation of the dynamic characteristics of vertical cylindrical shell A1 - Lejano, Bernardo A. LA - English UL - https://ds.mainlib.upd.edu.ph/Record/UP-99796217604633613 AB - A finite element program based on Mindlin's shell plate theory was used to determine the dynamic characteristics of vertical cylindrical shell with a fixed base. One dimensional elements were used to discretizer the longitudinal section and Fourier expansion was used to define the circumferential behavior of the cylinder. Convergence was improved by using higher order elements and reduced integration technique. The effect of ratio of height to radius (H/r) and ratio of thickness to radius (T/r) were investigated and found significant. The effect of Poisson's ratio was also investigated but showed very little influence. Experimental investigation of the dynamic characteristics was performed using a cylindrical shell model made of rubber. Forced vibration tests were conducted using a shaking table while free vibration test was accomplished by applying an initial displacement, The results indicate good agreement between the experimentally and numerically obtained dynamic characteristics. NO - Computer print-out (photocopy). NO - Thesis (M.S.)--University of the Philippines, Diliman. CN - LG 995 1989 E6 L45 KW - Shells (Engineering) : Vibration. KW - Cylinders : Vibration. KW - Earthquake engineering. ER -