What is Simpack 2025?
Simpack 2025 is the latest release of SIMULIA Simpack, a comprehensive multibody system simulation (MBS) software from Dassault Systèmes, designed for modeling, analyzing, and optimizing complex mechanical and mechatronic systems. Released in June 2024, it excels in simulating non-linear dynamics, flexible bodies, and high-frequency transients, making it ideal for industries like automotive, rail, wind energy, power transmission, and marine. Simpack 2025 builds on its renowned solver speed and robustness, incorporating advanced mathematical techniques for accurate, real-time simulations without code generation. It’s particularly suited for virtual prototyping of systems like rail vehicles, wind turbines, drivelines, and engines, enabling prediction of motion, forces, stresses, and acoustic behaviors.
As part of the SIMULIA portfolio, Simpack 2025 integrates seamlessly with the 3DEXPERIENCE platform for enhanced PLM workflows, supporting hardware-in-the-loop (HIL), software-in-the-loop (SIL), and model-in-the-loop (MIL) testing.
Key Features of Simpack 2025
Simpack 2025 emphasizes enhanced solver performance, expanded multiphysics integration, and user-friendly tools for faster model setup and analysis. While detailed release notes are available in the Licensed Program Specifications, here’s a summary of core capabilities and enhancements based on the release:
| Feature/Module | Description | Key Benefits |
|---|---|---|
| Multibody Solver | High-speed, robust solver for non-linear models with flexible bodies, contact, and harsh shocks; supports real-time execution since 2005. | Up to 10x faster than competitors for transient analyses; reliable for high-frequency acoustics and extreme conditions like derailment or wind gusts. |
| Rail Vehicle Dynamics | Specialized tools for derailment safety, critical speed, passenger comfort, track optimization, gauging, and switches/crossings. | Standard in railway industry; optimizes profiles and braking for EN 14363 compliance. |
| Wind Turbine Modeling | Detailed drivetrain and flexible rotor blade generators for load calculations, non-linear behavior, braking, and voltage dips. | Accurate extreme event simulations; reduces physical testing costs by 30-50%. |
| Engine & Driveline (Simpack Engine) | Coupled dynamics for combustion engines, electric motors, and gearboxes; includes NVH and durability analysis. | Full-system optimization for automotive and power sectors; integrates with Abaqus for FEA. |
| Integration & Compatibility | Qualified support for Node.js 16.14+, Intel Fortran Compiler with Visual Studio; FBI file conversion for PERMAS/RADIOSS; backward compatibility to Simpack 9.9. | Seamless with 3DEXPERIENCE, Abaqus, and third-party tools; no code gen needed for HIL. |
| Pre/Post-Processing | Simpack Pre for model building and FBI conversion; enhanced visualization for forces/stresses. | Intuitive for mid-sized enterprises; supports mid/large models on standard hardware. |
