0 0 votes A machine of mass $\text{100 kg}$ is subjected to an external harmonic force with a frequency of $\text{40 rad/s}$. The designer decides to mount the machine on an isolator to reduce the force transmitted to the foundation. The isolator can be considered as a combination of stiffness $\text{(K)}$ and damper (damping factor, $\xi$) in parallel. The designer has the following four isolators: $\text{K = 640 kN/m}$, $\xi =0.70$ $\text{K = 640 kN/m}$, $\xi =0.07$ $\text{K = 22.5 kN/m}$, $\xi =0.70$ $\text{K = 22.5 kN/m}$, $\xi =0.07$ Arrange the isolators in the ascending order of the force transmitted to the foundation. $1-3-4-2$ $1-3-2-4$ $4-3-1-2$ $3-1-2-4$ Vibrations gateme-2021-set2 vibrations machine-design numerical-answers applied-mechanics-and-design + – ♦go_editor 398 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.
