SIMULIA Simpack 2025: Advanced Multibody Dynamics Simulation Software

SIMULIA Simpack 2025 is the premier 3D multibody dynamics (MBD) solution from Dassault Systèmes, empowering engineers to simulate the realistic motion and forces within complex mechanical systems. As a core component of the 3DEXPERIENCE platform, Simpack 2025 delivers enhanced solver power, streamlined workflows, and deeper physics integration to optimize product performance, durability, and noise/vibration characteristics across industries like automotive, aerospace, and robotics.

This overview details the key features of SIMULIA Simpack 2025, showcasing its capability to solve the most challenging engineering dynamics problems.

1. Core Solver Technology & Enhanced Performance

At its heart, Simpack 2025 features a powerful solver engine designed for speed and accuracy in analyzing complex mechanical systems.

  • Recursive Dynamics Formulation: Efficiently solves large-scale systems with complex kinematic chains, delivering fast simulation times.

  • Advanced Numerical Integration: Robust solvers for both real-time and high-fidelity, non-linear transient analysis, handling stiff systems with ease.

  • Optimized Linearization & Modes Analysis: Quickly generate linear models for frequency domain analysis or as a basis for controller design.

2. Streamlined Pre-Post Processing & Workflow

Simpack 2025 focuses on user efficiency with a modernized interface and powerful automation tools.

  • Intuitive Graphical User Interface (GUI): A specialized workflow-driven interface for rapid model assembly, definition of joints, forces, and contacts.

  • Python-based Automation & Scripting: Automate repetitive tasks, create parametric studies, and develop custom applications using the integrated Python environment.

  • Seamless 3DEXPERIENCE Integration: For platform users, enjoy unified data management, requirements tracking, and collaborative project review processes.

3. Advanced Physics & Industry-Specific Solutions

Simpack 2025 extends beyond pure rigid-body dynamics with specialized modules for high-fidelity physics.

  • Flexible Body Dynamics: Accurately model component flexibility using imported FE meshes (e.g., from Abaqus) to capture critical deformation effects.

  • Comprehensive Contact Modeling: Simulate complex 3D contact scenarios with advanced algorithms for bodies and flexible structures.

  • Industry Application Modules: Dedicated solutions for Vehicle Dynamics, Rail, and Powertrain systems with pre-defined modeling elements and analysis workflows.

4. Mechatronics & Control Systems Integration

Model the complete mechatronic system by tightly integrating mechanical dynamics with electronic controls.

  • Co-simulation with SIMULIA ESTROM: Direct integration for high-fidelity simulation of electric motors and drives within the mechanical system.

  • Real-time Capabilities: Prepare and export models for Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL) testing.

  • Direct Interface to MATLAB/Simulink: Bidirectional co-simulation for designing and testing complex control strategies.

5. System-Level Analysis & Durability Prediction

Leverage dynamics results to drive downstream performance and durability assessments.

  • Accurate Loads Extraction: Generate precise time-domain load data for stress and fatigue analysis in FE software like Abaqus.

  • NVH (Noise, Vibration, and Harshness) Analysis: Predict vibration response and identify critical excitation sources to design quieter, smoother products.

  • Direct FE Interface: Export dynamic loads directly to Abaqus for stress, fatigue, and durability studies, ensuring accurate boundary conditions.