I have not understood the figure ... The mass is attached to the spring and the dashpot?
For the system in figure (I've attached), the equation of motion is:
m\ddot{x}+c\dot{x}+kx=0
Hello!
I have to solve a system of PDEs with Comsol and do not know where to start ...
This is the system:
&u_{,x}+v_{,y}=k y+h x\ \ \ &in\ \mathcal{A}
v_{,x}-u_{,y}=k x-h y\ \ \ &in\ \mathcal{A}
u n_x+v n_y=0\ \ \ &on\ \partial\mathcal{A}
\mathcal{A}\ in\...