Virtual Testing
Deliver FEA, CFD, multi-body dynamics, HIL, SIL, and fatigue simulation programmes with physical model correlation, HPC campaign management, and PLM-integrated results storage — reducing physical prototype test cycles by 30–50% using the EMUG MODEL Framework.
Virtual Testing for Engineering and Manufacturing Organisations
Virtual testing applies computational simulation — FEA structural analysis, CFD thermal and fluid dynamics, multi-body dynamics, hardware-in-the-loop (HIL), software-in-the-loop (SIL), and fatigue simulation — to verify product performance against requirements before physical prototype hardware is available, reducing physical test cycles and identifying design issues at the simulation stage when correction is cheapest. EMUG Tech delivers virtual testing for automotive OEMs, aerospace manufacturers, industrial equipment producers, and energy companies across 20 countries using the EMUG MODEL Framework.
The value of virtual testing depends entirely on model accuracy — and model accuracy is only known when simulation predictions are compared against physical measurements. EMUG MODEL programmes plan correlation tests before the simulation campaign begins, specifying exactly which physical measurements will validate each simulation model. Simulation results from models that have not been physically correlated are engineering estimates, not verification evidence — a distinction that regulatory authorities and quality auditors enforce consistently.
CORE CAPABILITIES
EMUG Tech's virtual testing capability spans seven specialised simulation service areas — structural FEA, CFD, multi-body dynamics, HIL and SIL testing, fatigue and durability simulation, model correlation and validation, and multi-physics coupled analysis — covering ANSYS, Abaqus, Nastran, Star-CCM+, Adams, dSPACE, nCode, and FEMFAT.
Structural FEA
Computational Fluid Dynamics (CFD)
Multi-Body Dynamics (MBS)
Hardware-in-the-Loop (HIL) and SIL/MIL
Fatigue and Durability Simulation
Multi-Physics and Coupled Simulation
Simulation Model Correlation and Validation
KEY METRICS
The EMUG MODEL Framework — Our Virtual Testing Delivery Methodology
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OUTLINE
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VIRTUAL TESTING SIMULATION METHOD MATRIX
| Virtual Testing Method | Engineering Application | Solvers and Tools | Regulatory Acceptance |
|---|---|---|---|
| Structural FEA | Static and dynamic stress, fatigue life prediction, natural frequency and modal analysis, crash and impact, thermal stress, and bolted joint analysis. | ANSYS Mechanical, Abaqus/Standard and Explicit, Simcenter Nastran, MSC Nastran, LS-DYNA (crash) | IATF 16949 design verification, AS9100 Rev D, EU type approval, FMVSS (with correlation), ASME pressure vessel codes |
| Computational Fluid Dynamics (CFD) | External aerodynamics, thermal management, HVAC performance, underhood cooling, combustion, and fluid-structure interaction. | ANSYS Fluent, ANSYS CFX, Simcenter Star-CCM+, OpenFOAM, Siemens Simcenter FLOEFD | EU type approval thermal performance, UNECE aerodynamics, building regulations for HVAC, ASME boiler and pressure vessel |
| Multi-Body Dynamics (MBS) | Vehicle handling and ride, mechanism kinematics, suspension travel, powertrain dynamics, and loads extraction for downstream FEA. | MSC Adams, Simcenter Motion, LMS Virtual.Lab, Modelica-based tools (Dymola, OpenModelica) | IATF 16949 design verification for chassis and suspension, EU type approval handling performance |
| Hardware-in-the-Loop (HIL) and SIL/MIL | Embedded software function verification, ECU integration test, ADAS and safety function testing, and software-in-the-loop regression. | dSPACE, National Instruments VeriStand, ETAS, Vector CANoe, Simulink for MIL/SIL | ISO 26262 software and system verification (ASIL A-D), AUTOSAR integration testing, DO-178C software verification |
| Fatigue and Durability Simulation | Component fatigue life prediction, weld fatigue, road load durability, and thermal fatigue for accelerated life prediction. | nCode DesignLife, FEMFAT, Simcenter 3D Durability, fe-safe, MSC Fatigue, custom road load data processing scripts | IATF 16949 design verification for durability, VDA fatigue guidelines, ASME fatigue codes for pressure equipment |
| Model Correlation and Validation | Simulation model accuracy demonstrated against physical measurements. Regulatory acceptance evidence for simulation-based verification. | Strain gauge and accelerometer data processing, modal test MAC analysis, thermal thermocouple correlation, signal comparison for HIL | Regulatory authority acceptance of simulation as verification evidence — EU type approval, UNECE, EASA, FDA simulation guidance |
INDUSTRY ALIGNMENT
FEA for structural stiffness, crash (LS-DYNA), and NVH (Nastran). CFD for underhood cooling, aerodynamics, and HVAC. MBS for vehicle dynamics and suspension loads. HIL testing for ISO 26262 ADAS and powertrain ECU software. Fatigue simulation from proving ground load data for durability programme support.
FEA for structural sizing, aeroelastic analysis (Nastran SOL144/146), and fatigue. CFD for aerodynamics and thermal management. SIL and HIL testing for DO-178C DAL A-D software verification. Simulation evidence documentation for EASA Part 21 and FAA certification support.
FEA for structural integrity of pressure vessels, heat exchangers, and rotating equipment (ASME and EN code compliance). CFD for fluid equipment design. MBS for mechanism and drive train analysis. Fatigue analysis for rotating components under cyclic loading from measured operational data.
FEA for pipeline stress analysis (ASME B31.3) and offshore structural analysis (DNV GL). CFD for flow assurance and separator performance. Fatigue analysis for subsea and topside components under wave and current loading. Seismic analysis for onshore and offshore structures.
Thermal FEA and CFD (ANSYS Icepak, Simcenter FLOEFD) for PCB and electronics thermal management. Structural FEA for drop test, vibration, and solder joint reliability. SIL testing for embedded software. Simulation model correlation against thermocouple and accelerometer measurements from environmental chamber and vibration test.
| 30–50% reduction in physical prototype test cycles through targeted virtual testing | EMUG MODEL virtual testing programmes reduce physical prototype test cycles by 30 to 50 percent — using simulation to explore the design space, identify critical load cases, and screen configuration options before committing to physical prototype build. Physical test resource is focused on the specific conditions that simulation cannot predict with sufficient confidence and on the correlation tests that validate the simulation model. |
| Model correlation built into every virtual test programme | Simulation results are only admissible as V&V evidence when the simulation model is validated against physical measurements. EMUG MODEL programmes plan correlation tests at the start of the simulation programme — specifying the physical measurements needed to validate each model, scheduling them alongside prototype availability, and reporting correlation quality before simulation results are submitted as verification evidence. |
| HPC infrastructure for large-scale simulation campaigns | EMUG MODEL manages simulation campaigns on HPC infrastructure — on-premise cluster environments or cloud HPC on AWS, Azure, and Google Cloud — with automated batch job submission, solver queue management, and results processing. Cloud HPC burst capability handles programme milestone peaks without requiring permanent on-premise HPC investment. |
| ISO 26262 functional safety HIL and SIL expertise | EMUG Tech’s HIL and SIL testing capability covers ISO 26262 ASIL A through ASIL D software and system verification — functional test cases from safety requirements, fault injection at the ECU level, back-to-back testing for software qualification, and MCDC structural coverage measurement for ASIL D software — producing the confirmation measure evidence required for functional safety assessment body review. |
| Simulation results linked to the RTM — not stored in engineering folders | EMUG MODEL simulation results are stored in PLM — Teamcenter Simulation Manager, Windchill simulation objects, or 3DEXPERIENCE simulation structures — linked to the design revision being verified and cross-referenced in the requirements traceability matrix with pass/fail status. Simulation evidence stored in folders cannot be found by quality auditors, cannot be linked to requirements, and cannot confirm which design revision was simulated. |
| Multi-physics simulation capability for complex engineering problems | EMUG Tech’s simulation team combines structural FEA, CFD, MBS, and fatigue analysis capability — enabling multi-physics problems such as thermal-structural coupled analysis, fluid-structure interaction, and vibration fatigue from frequency response — without requiring the engineering organisation to manage multiple specialist simulation firms. |
Expert answers from EMUG Tech's Virtual Testing practice.
Run More Design Iterations in Simulation — Build Fewer Prototypes for Test.









Validated Simulation. Traceable Evidence. Fewer Prototype Failures.