Solidworks Simulation and Analysis 4

Question 1

In SolidWorks Simulation, what is the purpose of the 'Soft Spring' option when running a static analysis?

Accepted Answer

It stabilizes models with insufficient fixtures by adding weak springs

Answer

Soft springs stabilize underconstrained models by adding very weak springs that prevent rigid body motion without significantly affecting stress results.

Question 2

Which mesh type in SolidWorks Simulation is most appropriate for thin-walled sheet metal parts?

Accepted Answer

Shell mesh

Answer

Shell mesh is ideal for thin-walled parts because it reduces element count and computation time while accurately capturing bending and membrane stresses.

Question 3

In a frequency (modal) analysis, what does a zero or near-zero natural frequency typically indicate?

Accepted Answer

The model has a rigid body mode due to insufficient constraints

Answer

Near-zero frequencies correspond to rigid body modes, meaning the model can translate or rotate freely due to missing or insufficient boundary conditions.

Question 4

What is 'mesh convergence' in the context of SolidWorks Simulation?

Accepted Answer

Refining the mesh until results change by less than an acceptable percentage

Answer

Mesh convergence verifies that further mesh refinement produces negligible change in key results, confirming the solution is independent of mesh density.

Question 5

In SolidWorks Flow Simulation, which condition is used to define a known fluid velocity entering a domain?

Accepted Answer

Inlet velocity boundary condition

Answer

An inlet velocity boundary condition specifies the fluid speed and direction at an inlet face of the computational domain.

Solidworks Practice Test

Solidworks Practice Test

Solidworks Simulation and Analysis 4