February 28, 2022 at 9:27 pmRifaat93Subscriber
I am trying to simulate an experiment with ansys
its a light-plate (gypsum) that is vibrated with a shaker
and i am trying to simulate it but at specific frequencies
i already got the eigenfrequencies and compred them to the experiments and it worked
then i coupled it with a transient analysis but the Question is.
after you couple it. Should just add any load or should it be a sine function with a specific frequency
but i also want to get the same deformation as its eigenmodes from the modal analysis if the function as the same frequency as its eigenfrequency
or should i just use a structural analysis couple with modal analysis?
can you guys help me ?
thank youMarch 1, 2022 at 9:57 pmChandra SekaranAnsys EmployeeGlad you are getting the right frequencies. So you are connecting the modal solution to the transient to do a 'mode superposition transient' analysis. In this transient you can apply any load as a function of time. It could be a sine wave at a particular frequency or it could be some other variation in time. ANSYS will automatically figure out how to combine the mode shapes from the modal analysis for the load you applied and combine the mode shapes to get a response. I did not follow what you mean by "but i also want to get the same deformation as its eigenmodes from the modal analysis if the function as the same frequency as its eigenfrequency" . Please provide more details.
March 2, 2022 at 4:42 amRifaat93Subscriberthank you for your answer
What i meant that i wanted the modes to appear in the total deformation in the transient analysis
but i meant for example if i wanted a specific mode ro appear in the transient analysis. Should i choose a sine wave with the same frequency. Or is there another certain way to do that ?
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