Hi!
I am trying to perform a linear perturbation analysis with Abaqus, on a mechanism which is affected by the coriolis force.
brifely describing, I have a Mass which is vibrating (at its natural frequency), let's say along x direction on a plane, and the plane and mass together are rotating along y direction. so due to the coriolis effect the mass should have a vibration along the z idrection out of the plane .
first I tried to visualize the coriolis effect by mounting the mass on a plane and impose the vibration to the mass along the x direction of the plane and apllying a rotation to the plane which mass is mounted on it, just like the reality situation. however, the results are not ralistic, and even without any vibration imposed to the mass along the x direction, I have the out of plane vibration of the mass, which theoretically should not happen.
what I try to do is to simulate the coriolis load effect by the load type which is available in abaqus load module. so I have created a mass which is vibrating along the x direction, and the applying the coriolis load to the mass. according to abaqus user manual, the coriolis load is created by defining the axis of rotation and the value of load which is equal to density*angular velocity. However, with any value of the coriolis load, I have no effect in my results.
I checked the users manual, and I have find some points such as defining Unsymmetric matrix storage, but still it doesn't work.
I would appreciate it if anyone could give me some ideas or solutions.
Thanks!