Practice Forced Vibration and Modal Analysis - 12.5 | 12. Two Degree of Freedom System | Earthquake Engineering - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define forced vibration in your own words.

💡 Hint: Think about systems responding to external conditions.

Question 2

Easy

What do the terms M and K represent in the forced vibration equation?

💡 Hint: Consider the definitions of mass and stiffness.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does the equation Mx¨ + Kx = F(t) represent?

  • Static analysis
  • Free vibration
  • Forced vibration

💡 Hint: Focus on the definitions of vibration.

Question 2

True or False: Modal analysis allows for the consideration of all modes simultaneously.

  • True
  • False

💡 Hint: Think about the term 'uncoupled'.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider a 2-DOF system subjected to a harmonic force F(t) = F0sin(ωt). Derive the equations governing this system in terms of modal coordinates.

💡 Hint: Identify the node's natural frequencies along with the force frequency.

Question 2

Analyze the impact of increasing the coupling stiffness in the forced vibration of a two-story building modeled as a 2-DOF system.

💡 Hint: Predict changes using your knowledge of stiffness relationships.

Challenge and get performance evaluation