Practice Use in Vibration Isolation - 8.6.1 | 8. Response to Harmonic Excitation | Earthquake Engineering - Vol 1
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Use in Vibration Isolation

8.6.1 - Use in Vibration Isolation

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the definition of transmissibility?

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

Question 2 Easy

In which zone is the transmissibility less than 1?

💡 Hint: Remember, it's about effective reduction of vibrations.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

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.

Question 2

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.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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.

Challenge 2 Hard

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.

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Reference links

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