SIMulation Workbench

Comprehensive Simulation Framework

SIMulation Workbench (SimWB) is Concurrent Real-Time’s high-performance, real-time simulation framework used across aerospace, defense, automotive, and advanced robotics programs. Ideal for deterministic execution  for X-in-the-loop (XiL) testing environments, SimWB delivers unmatched performance in applications where timing, throughput, and reliability are paramount.

SIMulation Workbench provides a unified, open, and extensible environment for integrating complex multi-domain models, configuring high-speed I/O, orchestrating real-time execution, and automating workflows at scale. Its architecture is trusted by teams who require repeatable, deterministic simulation, microsecond-level timing, and the ability to run large, highlycomplex models without compromise.

Why SIMulation Workbench is Different

Easy model import across leading modeling tools

SimWB natively supports models from:

• MATLAB®/Simulink®
• VI-grade DriveSim
• SIMPACK
• Dymola
• Adams
• And other FMI/FMU-based tools
  

No code rewrites or special wrappers required. Just compile models, import into a test, and run.

What’s New in SimWB 2026.1-0 Gold Release

Enhanced User Experience

Signal View (New)
A unified visualization of signal flow across the simulation environment:

• Track signals from input hardware → models → output hardware
• Quickly identify signal origin, destination, and system impact
• Reduce time spent navigating multiple UI panels

This improves debugging efficiency and overall productivity in complex simulation environments.

UI Improvements & Bug Fixes
Ongoing refinements to the interface provide a cleaner, more intuitive experience and smoother workflows across the platform.

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Performance & Capability Enhancements

Simpack Model Exchange Support

• Connect inputs and outputs between Simpack models and other simulation components
• Enable tighter integration for complex, multi-domain simulations
• Improve flexibility when building large-scale system models

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New Protocol & I/O Support

AIM 1553 Support (Aerospace)

• Support simulation of MIL-STD-1553 communication
• Enable testing of high-reliability, dual-redundant systems
• Ideal for flight control, mission systems, and defense applications

rFproTerrainServer 2026.1 Support

• Access the latest terrain simulation capabilities
• Improve realism and fidelity for vehicle and scenario testing

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Operating System Support

SimWB 2026.1-0 has been tested and qualified on:

• RedHawk Rocky
• RedHawk Ubuntu
• RedHawk RHEL 7.x, 8.x, 9.2

This ensures compatibility with the latest RedHawk releases and high-performance real-time systems.

I/O-Independent Models

SimWB employs a unique architecture where models are completely decoupled from the I/O configuration.

Change signal mappings, swap cards, or update hardware configurations without the need to modify the model.

This dramatically improves workflow efficiency, especially in large multi-domain HiL setups.

Market-Leading Real-Time Performance

SimWB consistently delivers the fastest execution performance across a broad range of workloads:

• Run larger, more complex models than competing platforms
• Achieve lower latency, higher determinism, and more stable cycle times
• Scale across advanced RedHawk Linux platforms, the latest multicore CPUs, GPUs, and FPGA-based systems

SimWB is chosen for programs where performance headroom is not optional.

Open Architecture for Automation

SimWB is built on human-readable configuration files, enabling teams to script, version-control, and automate everything from model loading to test execution to analysis.

• Text-based configuration files
• Fully scriptable workflows
• Python/C#/C APIs
• Easy CI/CD integration

Core Advantages

• Hard Real-Time Performance – Leverages Concurrent’s RedHawk™ Linux for low-latency, deterministic execution dispatched by Concurrent’s Frequency Based Scheduler (FBS). The FBS is a task synchronization mechanism used to initiate processes at specified frequencies. Frequencies can be based on high-resolution clocks, an external interrupt source, or the completion of a cycle.
  
• Integration with NightStar suite – Tight integration with Concurrent’s NightStar Suite allows users to debug, analyze and optimize complex simulations to target and achieve the highest level of real-time performance possible.
  
• Scalability & Multi-Core Optimization – Allows users to efficiently distribute complex models and I/O tasks across multiple cores thus exploiting maximum parallelism limited only by the hardware resources available. There is no limit on the number of cores that can be utilized by SimWB.
  
• Industry-Standard Modeling Tools– Works natively with Simulink®, FMI, VI-grade, VTD, Adams, SIMPACK, Amesim, CarSim®, and more modeling environments. SimWB also supports hand-written models in C, C++, Python, and Fortran to be running alongside third-party models.
  
• Comprehensive GUI Control – A platform-independent front-end aka SimWB Control Center allows users to remotely access and configure the server , execute test sessions, and monitor simulation data via an intuitive user interface. The Control Center can be run on any network-connected Windows or Linux system (including the iHawk system itself).
  
• Flexible Data Recording & Playback – Real-time recording of time-stamped data points in the Real-Time Database can be achieved via the SimWB data logger that may reside either on the iHawk or a separate host system via a dedicated network interface. Logging can be dynamically turned on and off in real-time via the Control Center, real-time test script or a user model. Logged data can be replayed frame-by-frame , and can be exported to standard formats such as CSV for further analysis.
  
• Seamless Model & I/O Integration – Model inputs and outputs are connected to external hardware channels via a high-speed memory-resident database known as the real-time database (RTDB). This architecture allows for complete independence of I/O from models. SimWB is trusted by leading engineers and researchers to power sophisticated simulation environments, from autonomous vehicle testing to flight control system validation.

SimWB is trusted by leading engineers and researchers to power sophisticated simulation environments, from autonomous vehicle testing to flight control system validation.