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a transient beam problem
Posted 17 juin 2014, 14:37 UTC−4 Structural Mechanics Version 4.3 0 Replies
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I am simulating a beam which is hinged at two ends. A time dependent force is acting on the beam and the beam is bending by the force. There are 3 dampers with damping coefficient b, and the force of the damper acting on the beam is b * vt (velocity in y direction). I need to get the displacement of the points on the beam. It is not a complex problem. And the model is attached.
I have solve this problem(solve the Euler beam equation) using numerical method with matlab and get the result. But the result that I get from Comsol is quite different( with the same parameters and coefficients). It is absolutely wrong, because the displacement I get in the comsol model is too large. Is there anyone who can help me have a look at my model? I have thought that for a long time.
The mph file is big, so I have to use google drive.
drive.google.com/file/d/0BzmhkxwNuOPmN1ZGQzRIaGV6X0E/edit?usp=sharing
Thanks sooooooo much! I will appreciate your help very much!
Best,
Ting
Hello Ting Zhou
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