Okay, so i am trying to simulate a mechanical damper (a tuned mass damper, TMD) inside a handle on a power tool.
So, the power tool transfers a force to the handle. The handle transfers the force to the mechanical damper, which has an unknown mass and spring constant. The mass is going to be tried/tested iteratively, and from this we will have a value for the spring constant. As of now, i am using a force F(t)=F0*sin(w*t), where F0 is the force coming from the power tool, F0=m*a, where a=dw/dt. F(t) is transferred to the damper, which gives F2(t), the force that is dampened by the inner mass.
omega=2*pi*f;
a= (derivative of omega, respect to t);
F0=m(powertool)*a;
F=F0*sin(omega*t);
beta=omega/((2*k2/m2)^(1/2));
F2=F*1/(abs(1-beta^2));
The mechanical damper is INSIDE of the handle, which means that the deformation cant vary indefinately, only between 0-4mm.
The meaning of this system is to dampen the vibrations which are finally transferred to the tool operator.
I have been trying to simulate this using both matlab and simulink, but i cant make it work. I would like to simulate it so that it varies both upon time and the frequency of the vibrations (if possible).
Does anyone have any tips or inputs on how i could solve this?
Thanks!