8.6.1. Use in Vibration Isolation

Try these first

1. 1.

   What is the definition of transmissibility?

   Hint

   Think about how much vibration comes out compared to what goes in.

2. 2.

   In which zone is the transmissibility less than 1?

   Hint

   Remember, it's about effective reduction of vibrations.

3. 3.

   What is transmissibility?

   • Output to input ratio
   • Input to output ratio
   • No relation to vibration

   Hint

   Think about how vibrations are transferred in a system.

4. 4.

   If the frequency ratio r is less than √2, what type of zone is this?

   • Effective Isolation Zone
   • Amplification Zone

   Hint

   Consider what happens to the vibration amplitude in this zone.

5. 5.

   A vibration system has an input amplitude of 5 mm, and the output amplitude is 1 mm. Calculate transmissibility and determine if the system is effective or amplifying.

   Hint

   Use the formula T = output/input.

6. 6.

   Describe a scenario where the frequency ratio is fixed, but output amplitude suddenly increases. What design considerations should be made?

   Hint

   Think about how to shift the vibrations away from the current operating point.