%0 Journal Article
%T Impact response of an unrestrained modified Timoshenko beam<br>无约束修正Timoshenko梁的冲击问题
%A Chen Rong
%A Wan Chunfeng
%A Xue Songtao
%A Tang Hesheng
%A <br>陈镕
%A 万春风
%A 薛松涛
%A 唐和生
%J 力学学报
%D 2006
%I 
%X In this paper,the modified motion equation of Timoshenko beam is first introduced,which is then compared with that of Timoshenko beam.The orthogonality conditions of the modified Timoshenko beam, where the rotary inertia caused by the shear deformation is considered, are derived. The impact response formulas of an unrestrained modified Timoshenko beam under the impact of a lumped mass are deduced, and the corresponding numerical examples are analyzed. The evaluation results are compared with the impact response of the classical unrestrained Timoshenko beam with the same lumped mass. Finally, the effects of the beam stiffness and impact mass ratio on the response are discussed.
%K unrestrained
%K modified Timoshenko beam
%K shear deformation
%K rotary inertia
%K orthogonal condition
%K impact response<br>无约束
%K 修正Timoshenko梁
%K 剪切变形
%K 转动惯量
%K 正交条件
%K 冲击响应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=3997E47CAA59C32F&yid=37904DC365DD7266&vid=16D8618C6164A3ED&iid=0B39A22176CE99FB&sid=30897FA31CA3354D&eid=1A363081E1FF7014&journal_id=0459-1879&journal_name=力学学报&referenced_num=0&reference_num=7