# Simulation Quiz 2

### Cantilever Mode Superposition Analysis

A cantilever is fixed at one end and is subjected to a linearly varying force for a short duration of 0.01s at the other end. Perform a transient mode superposition analysis and find the deformation of the cantilever during the time of 1s.

Follow instructions to set up the simulation and get results BEFORE starting the quiz. Download the instructions and necessary simulation files from here.

Note: The Expected Completion Time for this quiz is 20 mins but, the Maximum Available Time to complete the quiz is 45 mins.

#### Total Number of Questions - 15

Times up! Methods of Solving Problems in Structural Mechanics - Simulation Quiz 2

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1 / 15

If both ends of the cantilever are fixed, and the force is applied at the center, which one of the following statements is correct?

2 / 15

The model has a Force applied on the free end with 100 N acting in each of the X, Y, and Z directions. Select the option below that is a correct statement.

3 / 15

When determining the transient results using the mode-superposition method, which modes are used by the solver in its calculations? Select the best option.

4 / 15

5 / 15

Without modifying and resolving the model, a change in plate thickness has what effect on modal analysis results? Select the best option.

6 / 15

Before performing the Mode Superposition Analysis, which of the following is always useful to perform? Select the best, most practical option.

7 / 15

The applied force is not sinusoidal, but the Total Deformation response is oscillatory. Select the best option that explains why this happens.

8 / 15

Review the Reaction Forces at the Fixed Support for this model. Select the option below that is a correct statement.

9 / 15

Without modifying and solving the model again, consider an increase in the plate thickness. Select the best option that describes what happens to the Total Deformation response.

10 / 15

The analysis used a damping ratio of 1%. If the damping ratio were increased to 5%, select the best option that describes the Total Deformation response.

11 / 15

Without modifying and solving the model again, consider changing the material to one with twice the current mass density (geometry, loads, and all other material properties remain unchanged). Select the best option that describes what happens with this new density to the Total Deformation response.

12 / 15

If only three modes are used to calculate the maximum total deformation, then which mode shapes would provide the most accurate results? Select the best option.

13 / 15

Looking at the plot of maximum Total Deformation, which one of the following statements is correct?

14 / 15

Without solving the model, what will the maximum directional deformation in the Y-direction be if the applied force in the Y-direction is -200 N? Assume that forces in the X- and Z-directions remain unchanged. Select the best option.

15 / 15

What is the maximum deformation seen during the transient analysis? Select the closest option.