Vibration response of Euler-Bernoulli-damped beam with appendages subjected to a moving mass  

作　　者：Raed AlSaleh Ayman Nasir Nour Atieh 

机构地区：[1]Civil and Environmental Engineering Department,German Jordanian University,Amman 11180,Jordan [2]Department of Mechanical Engineering,Al-Zaytoonah University of Jordan,Amman 11733,Jordan [3]Luminus Technical University College,Amman 11118,Jordan

出　　处：《Earthquake Engineering and Engineering Vibration》2025年第1期223-234,共12页地震工程与工程振动(英文刊)

摘　　要：This paper addresses the problem of a viscoelastic Euler-Bernoulli beam under the influence of a constant velocity moving mass and different types of appendages.Four types of boundary conditions are considered:pinned-pinned,fixed-pinned,fixed-free(or cantilever),and fixed-fixed.Appendages considered include lumped masses,dampers,and springs.The modal decomposition method is employed to derive the equation of motion of the beam,for which an analytical closed-form expression of the dynamic vibration response is generated.The proposed method enables the study of the effect of a single appendage or a combination of the three types of appendages on the non-dimensional dynamic response of the beam.Numerical examples are presented to illustrate the effects of these appendages and compare them to the reference cases of a beam with no appendages.The results demonstrate the importance of considering these parameters in the design of structures.The proposed method is compared to other techniques in the literature and found to be advantageous due to its direct approach.The method also offers a versatile tool for investigating various configurations,aiding in engineering design and structural analysis for which establishing a precise prediction of beam vibrations is crucial.

关 键 词：Euler-Bernoulli beam modal decomposition vibration response APPENDAGES 

分 类 号：TU311.3[建筑科学—结构工程]