Affiliation:
1. School of Mathematics and Statistics, Shandong Normal University, Jinan 250358, China
Abstract
In this paper, the vibration problem of a beam with a time fractional damping term is studied by the Hermite finite element method, and its fully discrete scheme is obtained. The stability and error estimation of the scheme are analyzed, and it was proved that it is unconditionally stable and has a convergence order of O(τ+τ3−α+h4). The validity of the scheme is verified by numerical examples, the effects of fractional derivative order and damping coefficient on beam vibration are analyzed and the superiority of the fractional order model has been demonstrated by comparing with the traditional damping model.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Shandong Province
Subject
Statistics and Probability,Statistical and Nonlinear Physics,Analysis