Topic: How to apply cyclic sine load?
Hi,
I am writing to ask how to apply cyclic sine load in oofem. I know if might need to use time function to do the load. But how to apply a cyclic sine load with a certain frequency? Thanks.
Best,
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OOFEM forum → General Help → How to apply cyclic sine load?
Hi,
I am writing to ask how to apply cyclic sine load in oofem. I know if might need to use time function to do the load. But how to apply a cyclic sine load with a certain frequency? Thanks.
Best,
The calculator function is your best bet I think
userdefltf 1 f(t) "sin(123.45*t)"
should work i think (I don't have the code set up from this computer, so I can't test). I *think* the built in parser can handle this.
You can also use pythonexpression if you have built oofem with python support.
Hi Mikael,
Thanks for your information.
So if I want to appy a sine load with 1Hz frequency and 180 degree phase lag, is this correct?: userdefltf 1 f(t) "sin(2*3.14*t+180)" or userdefltf 1 f(t) "sin(2*pi*t+pi)" ?
Thanks.
The calculator function is your best bet I think
userdefltf 1 f(t) "sin(123.45*t)"
should work i think (I don't have the code set up from this computer, so I can't test). I *think* the built in parser can handle this.
You can also use pythonexpression if you have built oofem with python support.
Hi, trigonometric functions assume the parameters in radians, so the "sin(6.283*t+3.1415)" should work.
Thanks, bp, you help me out
OOFEM forum → General Help → How to apply cyclic sine load?
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