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ANSYS Rayleigh Damping, ALPHA & BETA

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bangell

bangell

Mechanical
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Feb 11, 2008
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I am trying to run a basic model in ANSYS of a cantilever beam. What does ANSYS default the values of ALPHA and BETA to if they are not input into the program?
 
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As with all defaults in Ansys chances are if it isn't specified...then it defaults to zero. Damping is not different.
 
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Hi,
correct, they default to zero. Anyway, in static structural damping is unrelevant.

Regards
 
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It is not a basic static structural analysis. I am trying to apply a concentrated end load to the beam that has a sinusoidal trend. The P(t) load curve is modeled with the function 4*sin(omega*t). I am new to ANSYS so I am not sure exactly how to apply this type of load. Do I use a harmonic analysis? And if so, how is that type of load applied?
 
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