Solution Adaption

When should I change the connection resolution level?

  • To improve the quality of connections when the point cloud density is discrete between parts, it’s essential to increase the resolution.
  • Utilize the Aspect Ratio and Number of Points columns in the Review Regular Connections dialog to identify poorly defined connections. Aspect ratio >0.001 or a limited number of points can indicate inadequate connection quality.
By adjusting these parameters, the connection integrity can be enhanced, ensuring better load transfer and overall performance in your analysis.

When should I create a local group at solution settings?

Local groups are recommended in the following cases:
  1. High-Fidelity Stresses: Detailed stress analysis at specific locations within the assembly is needed.
  2. Scale Differences: There is a significant difference in the scale of various parts in the assembly.
  3. Mixed Materials: The assembly includes a combination of stiffer and softer materials, requiring localized refinement to capture interactions accurately.
The Global+Local objective in SimSolid automates the creation of local groups for parts of different sizes and applies the suitable geometry and solution adaptation settings.

What causes the warning/error IDs and how to fix them?

Possible errors during a SimSolid solution often arise from geometry defects, discrete connections, and improper constraints. Typically, error messages will highlight the problematic parts, aiding in the debugging process. To prevent these errors, it's advisable to conduct the following checks before initiating the solution:
Geometry Error Check Thoroughly examine the model for any self-intersections or faceting defects. This ensures the geometry is clean and free of issues that could impact the simulation.
Incorrect Part Recognition Verify that parts are recognized correctly. If any parts are misidentified, change their type to General to ensure proper handling.
Regular Connections Quality Check Assess the quality of regular connections to confirm they are well-defined. If necessary, increase the resolution of these connections to enhance accuracy, leading to better load transfer and overall performance.
Rigid Body Check Conduct a modal analysis to identify any rigid body motion within the assembly, ensuring that the parts behave as intended during the simulation.
By implementing these pre-checks, you can minimize errors and streamline the simulation process in SimSolid, leading to more reliable and accurate results.

Is the bolt/nut actually being turned around during the simulation or is it a visual representation?

The animation of bolt turning around is a visual representation.

What is the maximum strains can SimSolid work with?

It is recommend to keep the strains below 4% when working with plasticity.

How can I map pressures from CFD simulations?

SimSolid allows importing pressures at specific points using a CSV file.

How does the resolution of the geometry import affect the results?

Import resolution plays a crucial role in determining the quality of geometry represented by facets in SimSolid. If the facets are too coarse, not only will the geometry be inaccurately captured, but this can also lead to the introduction of stress concentrations that could skew the results of the analysis. Therefore, it is essential to select appropriate import settings that align with the type of geometry and the specific objectives of the analysis. By ensuring a suitable resolution, you can enhance the fidelity of the model, improve accuracy, and achieve more reliable outcomes in your simulations.

What is the difference between resolution in import settings and refinement in solution settings?

  • Geometry import options play a vital role in defining how accurately the geometry is represented through facets. The chosen import settings directly impact the level of detail and the smoothness of the facets, which can affect the overall integrity of the model during simulation.
  • On the other hand, refinement settings applied during the solution phase serve a different purpose. These settings influence the geometry decomposition to better capture the behavior of the model under load. This refinement enhances the accuracy of the simulation, it does not modify the imported geometry's boundaries.
By carefully selecting both geometry import options and refinement settings, this can ensure the model maintains a high level of accuracy throughout the simulation process.