MD Solutions across the N & V Spectrum

MSC Software Corporation

MD Solutions across the N & V Spectrum

D.J. Neill, Senior Director, MD Nastran Development

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Agenda

• Welcome

• The Unified Solver Architecture: MD

• Noise and Vibration Simulation• Event Simulation• Multidisciplinary Simulation• Simulation Fidelity• Frequency Spectrum

• Looking ahead

MD

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Engineering RealitySimulation Must Drive Design

• Need : System Models Vs. Models of Many Components• Need : Single Model with Multiple Attributes Vs. Many Models

Virtual

Physical

Crash andSafety Simulation

Vehicle Suspension Simulation

Control Simulation

Fuel TankSimulation

Virtual

Physical

Crash andSafety Simulation

Vehicle Suspension Simulation

Control Simulation

Fuel TankSimulation

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• Automatically coupling together sequences of analyses with output state of one used as input state for another

• Multi-discipline concurrent analysis improves results accuracy• “Solve” of coupled equations, through a single model• Streamline solve time, reducing cycle time• Parallel enabled for solution time control

Common Data Model and Results

Statics Dynamic Response

Implicit Non-linear

Explicit Non-linear

What the Analyst WantsSimulating Events: A Common Model

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• Single data model for multidiscipline simulation

• Improved ability to simulate complex interactions

• Greater efficiency and less error-prone by reducing data transfers

• A common framework for end-to-end simulation

• MD component services work with native databases

• But share a common hierarchy and recognize key attribution

• Extensible by MSC and customers• No single service will understand all of the

CDM…because it must be extensible by ourselves and our customers!

One ModelSimulating Behavior: A Common Model

Open Scripting Language

Common Data Model

StiffnessMatrix

Calculation

StressRecovery

UserSubroutines

ContactComponent

OpenCFDAPI

AdvancedComposite

Fatigue …Optimizer

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MD Drives Virtual Product DevelopmentEvolution of Simulation Fidelity based on a CDM

MotionRide and HandlingLow Frequency NVControls and Mechatronics

StiffnessLinear Static DynamicsNL Static Buckling

DurabilityFatigueLife PredictionEngine, BIW, Trim Parts

NVHFRF and Modal BasedInterior / Exteriors Noise Acoustics (Multi-Physics)

Crash/SafetyPassenger Safety RolloverPart Crash SeatbeltsBarrier Impact Fuel Tanks

OptimizationDeterministic (Sizing, Topology)Stochastics (Monte Carlo, Discrete)

Optimization

Stiffness

NVH

Crash / Occupant Safety

Motion Durability

System Level Optimization Loop

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MD Drives Virtual Product DevelopmentMulti Attribute tradeoffs based on a CDM

Stamping Process

Body-in-WhiteAssembly w/ Pre-stress

Vibration w/ LinearizedSuspension Model

Interior/ExteriorNoise

OccupantSafety

Vehicle Dynamicsw/ Flexible BIW

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Looking AheadFull System Model for R&H and N&V

Rear Suspension

Rear Tires

Front TiresEngine

Steering

Front Suspension

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Plant Controller

Actuator μ-Processor

Anti-lockBrakingSystem

ElectronicTractionControl

ElectronicStabilityProgram

Drive-by-Wire

Brake-by-Wire

ActiveBody

Control

BrakeAssistSystem

AdaptiveCruiseControl

Electro-Mechanical

Brakes

EngineControlModule

Power-Train

Control

Looking AheadThe Virtual Vehicle

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N&V Symposium

• A brief view of N&V techniques in MD today and where we’re going

• Integrated technologies

• Process and Organization

• Open Forum

MD


Thank you

Documents

MD Solutions across the N & V Spectrum