Running simulation and interpreting results in Solidworks - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the first step before running a simulation in SolidWorks?

The first step is to set up the model correctly, including defining materials, applying fixtures, and loads.

beginner

What does a stress plot in SolidWorks simulation show?

It shows where the model experiences the highest and lowest stress under the applied loads.

intermediate

Why is mesh quality important in running simulations?

Good mesh quality ensures accurate results by properly dividing the model into small elements for calculation.

intermediate

What does a factor of safety plot indicate in a simulation?

It shows how much stronger the model is compared to the applied loads, helping to identify safe and risky areas.

advanced

How can you verify if your simulation results are reliable?

By checking mesh convergence, comparing with hand calculations or known results, and ensuring correct boundary conditions.

What should you define before running a simulation in SolidWorks?

A Materials, fixtures, and loads

B Only the color of the model

C The file name

D The printer settings

Materials, fixtures, and loads are essential to simulate real-world conditions.

What does a high stress area in the simulation results indicate?

A A place with no load

B A place where the model is strongest

C A place where the model might fail

D A place with perfect safety

High stress areas are where the model is most likely to fail under load.

Why is mesh refinement important?

A It makes the model look prettier

B It changes the material

C It reduces file size

D It improves simulation accuracy

Refining the mesh divides the model into smaller elements, improving accuracy.

What does a factor of safety less than 1 mean?

A The model will likely fail

B The model is too strong

C The model is safe

D The simulation did not run

A factor of safety less than 1 means the load exceeds the model's strength.

How can you check if your simulation results are valid?

A By ignoring the results

B By comparing with known data and checking mesh quality

C By changing the colors

D By printing the model

Validation involves comparing results with known data and ensuring mesh quality.

Explain the key steps to prepare and run a simulation in SolidWorks.

Think about what you need to tell the software about your model before testing it.

Describe how to interpret a stress plot and factor of safety plot from simulation results.

Focus on what the colors and values tell you about the model's strength.

Practice

1. What is the main purpose of running a simulation in SolidWorks before building a physical part?

easy

A. To test the design virtually and find potential problems early

B. To create a 3D model faster

C. To print the part automatically

D. To change the color of the design

Solution

1. Step 1: Understand simulation purpose

   Simulations help check how a design behaves under conditions without making a physical part.

2. Step 2: Identify benefits of early testing

   Finding problems early saves time and money by avoiding costly physical errors.

3. Final Answer:

   To test the design virtually and find potential problems early -> Option A

4. Quick Check:

   Simulation = early problem detection [OK]

Hint: Simulations find design issues before building [OK]

Common Mistakes:

• Thinking simulation creates physical parts
• Confusing simulation with 3D modeling speed
• Believing simulation changes design colors

2. Which of the following is the correct step to start a static simulation study in SolidWorks?

easy

A. Go to Simulation tab, click 'New Study', select 'Static', then click OK

B. Go to File menu, select 'Export', then choose 'Static Simulation'

C. Right-click the part and select 'Run Simulation' directly

D. Open the part and press Ctrl+S to start simulation

Solution

1. Step 1: Locate Simulation tab

   Simulation studies start from the Simulation tab in SolidWorks interface.

2. Step 2: Create new static study

   Select 'New Study', then choose 'Static' to analyze forces and stresses under steady loads.

3. Final Answer:

   Go to Simulation tab, click 'New Study', select 'Static', then click OK -> Option A

4. Quick Check:

   Simulation tab + New Study = start static study [OK]

Hint: Use Simulation tab > New Study > Static to start [OK]

Common Mistakes:

• Trying to export instead of creating study
• Right-click menu does not start simulation
• Saving file does not run simulation

3. After running a simulation, you see a color map showing red areas on your part. What does the red color usually indicate?

medium

A. Areas with the lowest stress

B. Areas that are not part of the simulation

C. Areas with no stress

D. Areas with the highest stress

Solution

1. Step 1: Understand color map meaning

   Simulation results use colors to show stress levels; red usually means high stress.

2. Step 2: Interpret red color

   Red areas are critical points where the part experiences maximum stress and risk of failure.

3. Final Answer:

   Areas with the highest stress -> Option D

4. Quick Check:

   Red color = high stress [OK]

Hint: Red means highest stress on the part [OK]

Common Mistakes:

• Confusing red with low stress
• Thinking red means no stress
• Ignoring color legend in results

4. You ran a simulation but the results show zero stress everywhere, which seems incorrect. What is the most likely cause?

medium

A. The part is too small to simulate

B. You forgot to apply loads or fixtures to the model

C. The simulation ran too long

D. You used the wrong color scheme

Solution

1. Step 1: Check simulation setup

   Stress results depend on applied loads and constraints; missing these causes zero stress.

2. Step 2: Identify missing inputs

   Without loads or fixtures, the part is free and unstressed, so results show zero everywhere.

3. Final Answer:

   You forgot to apply loads or fixtures to the model -> Option B

4. Quick Check:

   No loads = zero stress [OK]

Hint: Always apply loads and fixtures before running simulation [OK]

Common Mistakes:

• Assuming part size affects stress values directly
• Thinking simulation time affects stress results
• Blaming color scheme for zero stress

5. You want to improve a design after simulation shows high stress in a small area. Which approach is best to reduce stress based on simulation results?

hard

A. Remove all fixtures to let the part move freely

B. Change the material color to blue

C. Add fillets or rounds to smooth sharp corners in the high-stress area

D. Ignore the results and build the part as is

Solution

1. Step 1: Analyze high-stress area cause

   Sharp corners cause stress concentration; smoothing them reduces stress.

2. Step 2: Apply design improvement

   Adding fillets or rounds distributes stress more evenly and lowers peak stress.

3. Final Answer:

   Add fillets or rounds to smooth sharp corners in the high-stress area -> Option C

4. Quick Check:

   Smoothing corners reduces stress [OK]

Hint: Smooth sharp corners to lower stress [OK]

Common Mistakes:

• Changing color does not affect stress
• Removing fixtures causes unrealistic results
• Ignoring simulation feedback wastes improvement chance