Reply To: Sine wave load

[peteroznewman]

What are the units of y and a? Do you mean amplitude of the acceleration or the amplitude of the displacement? If the units of a and y are displacement then that is correct.

What are the units of A? If the units of A are acceleration such as m/s^2 then that is also correct.

You can apply the formula for y to a displacement boundary condition to create the desired acceleration.