Simulation Exercise - Modal Analysis in Ansys Mechanical
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Question 1 of 10
1. Question
What is the value of the first natural frequency of this model? Select the option that is closest to the result you obtained.
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Question 2 of 10
2. Question
What is the value of the second natural frequency of this model? Select the option that is closest to the result you obtained.
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Question 3 of 10
3. Question
Let us assume that a separate dynamic analysis will be performed using the mode-superposition technique. The requirement is to calculate enough modes to ensure that 90% or more of the effective mass is captured. For this model, to satisfy this requirement in all 3 directions (x, y, and z), at least how many modes should be extracted? Select the best option.
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Question 4 of 10
4. Question
Which is the most significant mode in the z direction for this model? Select the option that is closest to the answer you obtained.
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Question 5 of 10
5. Question
Based on the modal analysis result of this structure, if apply a force in the x direction in a dynamic analysis, which mode will contribute the most? Select the option that is closest to the answer you obtained.
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Question 6 of 10
6. Question
Which of the following is TRUE about the number of modes to extract for this modal analysis? Select the best option.
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Question 7 of 10
7. Question
Which of the following statement is TRUE about the boundary conditions of this modal analysis? Select the best option.
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Question 8 of 10
8. Question
In this modal analysis, the values of the first three natural frequencies are close to each other. Which of the following statement is TRUE? Select the best option.
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Question 9 of 10
9. Question
In Ansys Mechanical, stress and strain results can be requested through Output Controls under Analysis Settings for any modal analysis. Which of the following statements is TRUE about stress and strain results from a modal analysis? Select the best option.
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Question 10 of 10
10. Question
Which of the following statement is TRUE about participation factors and effective mass? Select the best option.
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