I am modeling an industrial oven and the lid is very heavy. In order to reduce the load when opening, I plan on adding a gas spring to the exterior. However, I don't know how powerful of spring to purchase to successfully aid in lifting. I opened the mass properties and the lid weighs approximately 170lbs. Can anyone help?
F = w*d*cos(t)
F = force to lift/hold lid
w = weight of lid
horizontal distance CG to hinge axis
t = angle of line from CG to hinge axis w.r.t. horizontal