Which One is Better: ANSYS or SolidWorks Simulation?

Introduction

Choosing between ANSYS and SolidWorks Simulation for engineering analysis can be a daunting decision. Both software tools offer advanced solutions, but they excel in different areas. This article aims to provide a comprehensive comparison, focusing on industry-specific applications, user friendliness, and performance.

Focused Applications

ANSYS

ANSYS is widely recognized as a premier tool for industry-specific high-fidelity analysis in sectors such as aerospace, automotive, energy, and electronics. It excels in structural analysis, fluid dynamics, and electromagnetic simulations.

Structural Analysis: ANSYS offers robust solutions for static, dynamic, and nonlinear structural analysis. Fluid Dynamics (CFD): The ANSYS Fluent module is specifically designed for complex fluid flow simulations. Electromagnetic Simulations: The ANSYS Maxwell module provides comprehensive solutions for electromagnetic field analysis.

Due to its extensive range of capabilities and specialized modules, ANSYS is a preferred choice in industries where precision and adherence to regulatory standards are critical. However, its learning curve can be steep, and achieving optimal results often requires in-depth training.

SolidWorks Simulation

SolidWorks Simulation is derived from the older ANSYS product, COSMOS, which was acquired by Dassault Systems. It continues to offer powerful simulation tools, although some advanced functionalities are not readily accessible within the SolidWorks interface.

Multiphysics Simulations: Ideal for scenarios where the coupling between multiple physical domains (thermal, structural, fluid) is essential. Academic Research and RD Environments: Highly favored for its flexibility in modeling custom physics. Product Development: Excellent for early-stage product development and exploratory studies.

Usability and Cost

While ANSYS is highly capable, it often requires a more experienced analyst due to its extensive range of analysis types and a single unified interface. The learning curve for ANSYS can be challenging, and achieving top results demands a well-trained analyst.

On the other hand, SolidWorks Simulation is generally easier to use, especially for users familiar with SolidWorks design tools. However, it may lack advanced features in certain areas compared to ANSYS.

Accuracy and Validation

Both ANSYS and SolidWorks Simulation provide accurate solutions based on the models and boundary conditions set by the user. However, a deep understanding of the analysis and its limitations is crucial.

A pertinent example illustrates this point. An engineer used a 2D rotordynamics code to analyze a pump design for the petroleum industry. I had identified a potential resonance that was heavily damped and thus non-damaging. Despite my report, the rotating equipment engineer argued against it, leading to a protracted debate.

Upon re-evaluating, the engineer’s analysis from a competitor’s pump revealed a poorly damped resonance. This highlighted the importance of thorough analysis and understanding. Thoroughness and error checking, along with sensitivity analysis, are essential to ensure the accuracy and reliability of simulations.

Conclusion

The choice between ANSYS and SolidWorks Simulation depends on the specific needs of the project and the expertise of the user. ANSYS offers high-fidelity analysis and specialized modules for various industries, but it comes with a steeper learning curve. SolidWorks Simulation, however, is user-friendly for those already familiar with SolidWorks and provides a solid foundation for multiphysics simulations and early-stage product development.

Regardless of the software chosen, it is imperative to have a deep understanding of the underlying physics and to conduct thorough validation and verification to ensure accurate and reliable results.