(Solved): the engine valve system comprises a push rod of mass mp b) The engine-valve system comprises a push ...

b) The engine-valve system comprises a push rod of mass $$m_p$$, a rocker arm of moment of inertia $$J$$ and a valve of mass $$m_v$$. Find the natural frequency and the effective mass and stiffness at point $$A$$, the cam which drives the push rod. (The figure to the right shows the effective system at $$A$$.)