A four-cylinder automobile engine is to be supported on three shock mounts, as indicated in Fig. 3.46.

Question:

A four-cylinder automobile engine is to be supported on three shock mounts, as indicated in Fig. 3.46. The engine-block assembly has a mass of $250 \mathrm{~kg}$. If the unbalanced force generated by the engine is given by $1000 \sin 100 \pi t \mathrm{~N}$, design the three shock mounts (each of stiffness $k$ and viscous-damping constant $c$ ) such that the amplitude of vibration is less than $2.5 \mathrm{~mm}$. Assume $\zeta=0.01$.

Figure 3.46:-

image text in transcribed