Practice Concept of Mode Shapes and Natural Frequencies - 13.2 | 13. Normal Modes of Vibration | Earthquake Engineering - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define natural frequency.

💡 Hint: Think about vibrations in a structure.

Question 2

Easy

What is a mode shape?

💡 Hint: Consider how structures deform when they vibrate.

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 is a natural frequency?

  • Frequency applied externally
  • Frequency at which a system oscillates naturally
  • A forced vibration frequency

💡 Hint: Remember, it relates to the system's behavior without outside influence.

Question 2

Mode shapes are defined as:

  • True
  • False

💡 Hint: Think of how objects deform when they vibrate.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a three-degree-of-freedom system, derive the mass and stiffness matrices, then compute the natural frequencies and mode shapes.

💡 Hint: Start with the equations from earlier.

Question 2

Analyze a multi-story building structure subjected to seismic load and determine how the mode shapes contribute to the overall response.

💡 Hint: Consider how each mode affects the total response.

Challenge and get performance evaluation