Practice Orthogonality of Mode Shapes - 11.4 | 11. Multiple Degree of Freedom (MDOF) System | Earthquake Engineering - Vol 1
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Orthogonality of Mode Shapes

11.4 - Orthogonality of Mode Shapes

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does it mean for mode shapes to be orthogonal?

💡 Hint: Think about how distinct vectors can behave in a space.

Question 2 Easy

Write down the expression for mass orthogonality.

💡 Hint: Recall the components of the mass matrix and that it relates to mode shapes.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does mass orthogonality imply?

Distinct mode shapes overlap
Distinct mode shapes are independent
Mode shapes are identical

💡 Hint: Think about how vectors interact geometrically.

Question 2

True or False: Stiffness orthogonality means that mode shapes can be solved together without difficulty.

True
False

💡 Hint: Consider how dividing tasks can alleviate complexity.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A structure experiences vibrations with known mode shapes. If you are tasked with computing responses to dynamic loading, how would orthogonality assist you?

💡 Hint: Focus on the separability of the equations.

Challenge 2 Hard

Consider a scenario where a set of mode shapes were not orthogonal. What consequences could arise in terms of computational efficiency?

💡 Hint: Think about how overlapping vectors affect problem-solving.

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Reference links

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