VIBRATION ANALYSIS OF BEAMS USING HIGH-ORDER FINITE ELEMENT MODEL
This paper is intended to investigate dynamic behaviour of beams using a high-order finite element approach. The equations of motion are formulated by applying the principal of total potential energy with stationary value in elastic dynamic system and the set-in-right-position rule. The requirement of strain continuity hasnt met at element interfaces with the use of conventional cubic Hermitian finite element formulation. Hence, it is difficult to evaluate vibration response of beams accurately. In order to overcome this problem, a beam element with simple high-order interpolation functions is chosen as the finite element model. Finally, the dynamic characteristics analysis and dynamic internal forces analysis are carried out on two beam models respectively. To verify the efficiency and accuracy of the current study, the numerical results are presented and compared with the finite element solutions using the Hermitian beam elements and the analytical results.
Ying Wen Qing-Yuan Zeng
School of Civil Engineering and Architecture, Central South University, Changsha 410075, P.R. China
国际会议
长沙
英文
224-228
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）