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Radial displacement as a travelling wave

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Old   December 13, 2020, 13:05
Default Radial displacement as a travelling wave
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In ANSYS Transient Structural a displacement needs to be applied on the inner surface of a rubber tube like a travelling wave, how to do it ?

I have a rubber tube for which I defined cylindrical coordinates (z-along the axis, x-radial and y- azimuthal).
I need to apply a radial displacement (x-direction in cylindrical coordinates) on the inner face of the tube that travels like a wave along the z-axis of the tube.

Does anyone know how to do this ?
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