Dynamic analysis of a beam due to a moving mass
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I have modelled the dynamic response of a continuous beam due to a moving force using FEM in Matlab. I'd like to do the same analysis but with a moving mass (i.e taking into account inertia effects). From there I'd also like to look at a sprung mass. I'm not sure how to tweak my programme in order to do this so I'm wondering if anyone can help me on this matter.
I understand the theory involved but I'm now sure how to implement it in Matlab. I've used 20 beam elements to model the beam and assembled the global stiffness and mass matrices from these and I've used the wilson theta method to solve for displacements. If you know about this topic I can send you my program for a better understanding.
Also I should add that this is for crane analysis and not a vehicle crossing a bridge.
Thank you!
10 comentarios
Cholakorn Cheevakasemsook
el 12 de Sept. de 2022
Hi there, I'm the same problem with the moving mass above the beam and I must to do the dynamic analysis. Could you share with me how you solved the problem please?
cholakorn2471@gmail.com
Thank you
Lisa
el 23 de Mzo. de 2023
Hi! Can somebody give me some advices how to model a moving load for FEM analysis in Matlab?
Respuestas (2)
YIYA
el 27 de Sept. de 2019
Dear,
I am currently studying the structural damage identification of the main girder of the crane under the moving load.
I've already done the FEM of my structure by ansys apdl.
Could you share with me with your workings so I can find some inspiration?
if yes: 220180230@seu.edu.cn
Thank you very much!
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abozar sharyati
el 29 de Feb. de 2020
Dear my friend I have this problem too. could you please help me? my email address is: Sharyatiabozar@ymail.com Thanks!
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