altair hyperworks solver technology

Copyright © 2010 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Detlef Schneider

Senior Vice President – Solver Products

European HTC2011

Altair HyperWorks Solver Technology


HyperWorks for Analysis and Optimization

RADIOSS … AcuSolve … MotionSolve

Statics

NVH

Non-Linear

(Implicit)

Non-Linear

(Explicit)

Thermal and

CFD

Optimization – OptiStruct and HyperStudy

Data and Process Management

Multi-Body

Dynamics

Partner Alliance

Solutions

1-D Systems, Fatigue,

Ergonomics, Industrial

Design, Injection Molding,

Noise and Vibration (NVH),

Composite Materials,

Electromagnetics

Pre-Post


HyperWorks for Manufacturing Simulation

RADIOSS … HyperXtrude

Sheet Metal Forming Metal Extrusion

Polymer Extrusion

Billet Forging

Optimization – OptiStruct and HyperStudy

Data and Process Management

Friction Stir Welding

Partner Alliance

Solutions

Injection Molding

Pre- and Post-processing

Blow Molding

Hydroforming

Hot Forming

Data Mapping


Scalability

Why is it important?

• Demand for simulation increases steadily

• More physical effects can be simulated

• Model size increases

• Evolutions in Hardware platforms


Scalability - Hybrid Technology

• Combine SMP and MPP (domain /

loadcase decomposition) technology

• Leverage increasing number of

cores per cpu

• Technology available in

• RADIOSS

• OptiStruct

• AcuSolve


Scalability - RADIOSS Hybrid

RADIOSS 11.0, NEON_1M 8 ms, Nehalem 2.80 GHz Cluster

MPP Hybrid

1

10

100

8 16 32 64 128 256 512

ideal

hybrid: 8 threads SMP



pure MPP


0 20000 40000 60000 80000

AM

SE

SLa

nczo

s

elapsed time (s)

AMSES VS Lanczos for Modal FRF solution

Eigen Solution

Structral Damping

Other

Scalability – Other technologies (RADIOSS)

AMS: Advanced Mass Scaling

increases timestep for explicit simulation

AMS modifies only the high frequencies

enhancements in 11.0.201

AMSES: Automatic Multilevel Substructuring Eigen Solver

focused on NVH Analysis

solves large numbers of eigenvalues

new in 11.0.201


Scalability - Postprocessing / Data handling

„With HyperGraph we are able to read, compute and export several GB of

data controlled by our own config file.“ Porsche


0

10

20

30

40

50

60

70

80

90

100

1 11 21 31 41 51 61

Scalability – License Decay

# parallel runs

Co

sts

/ FE

so

lve

r ru

n [

%]


Quality


• Decisions made on simulation results

• Modelling errors need to be detected


Benefits:

Detailed analysis of specific parts w/o affecting the global time step

Allows to run detailed models in shorter time

New in 11.0.201: single I/O

Quality - Multi Domain Technology


Quality – New CFD models in AcuSolve

Incorporation of 3 additional turbulence models

SST, k-omega and SST-DES

Support for viscoelastic material models

Incorporation of a turbulent transition model

Gamma-Re_theta turbulent transition model


Quality - FSI with RADIOSS & AcuSolve


Quality – Vertical Applications for MBD / MotionSolve

Closures

Suspensions

Durability

Vehicle Dynamics

Vertical

Applications

End-to-end solution

Easy to use

Repeatable

Open and

Customizable

Capture Best Practices

Process Based

Solution

Multi-body Dynamics

Finite Element

Optimization

Controls

Computational Fluid

Dynamics

Pneumatics / Hydraulics

Seamless

Integration

Accurate

Fast

Robust

Comprehensive

Easy-to-use

High Performance

Solvers


• Process template for Seal- or Tire-Extrusion

• Based on HyperXtrude

• Key Features • Accurate and robust solver

• Easy to use interface

• CAD to Analysis in few mouse clicks

Quality – Vertical Applications for Polymer Extrusion


Robustness


• Increasing time pressure: need for results

• Combination of disciplines (MDO) need robust components

• Allow process automation and optimization


Robustness - AcuSolve Mesh independency

Mesh 1 Mesh 2 Mesh 3

# elements 1 Mio / all tetra 1 Mio / all tetra 0,5 Mio / penta BL

Max. vol skew 0.9997 0.95 0.95

Delta_p [Pa] 2.63 2.63 2.63

X-traction [N] 3.13e-3 3.13e-3 3.12e-3

Iterations 20 21 25


Robustness - Optimization with MBD


Composites

Manufacturing

constraints by ply and

by ply set

Designable core in

free sizing optimization

Ply drop-off constraints

Optimization enabled – OptiStruct

NVH

Equivalent radiated power

(ERP) response

Optimization of radiated

sound power using ATVs

Transient response

Complex eigenvalue

Non-Linear

Plastic strain response

Continued R&D on high

speed impact events

Responses: energy/force

management,

acceleration, etc.

Thermal

Thermal – structural

topology optimization

(conduction initially)


Optimization enabled - Composite Optimization

Number of Plies

Ply Bundle Sizing

Phase 2

Laminate Stacking

Stacking Sequence Optimization

Phase 3

Rule based

ply shuffling

45 -45 0 0 0

45 -45 45 90

90 -45 45 -45 0 0

-45 90 45

(a) Ply Level (b) Superply Level

45 -45 0 0 0

45 -45 45 90

90 -45 45 -45 0 0

-45 90 45

(a) Ply Level (b) Superply Level

Ply Shapes

Free Sizing

Phase 1

x

y

z


Summary - HyperWorks Solvers

Most comprehensive high-end CAE solver offering

Optimization Enabled – Unique Altair Value

Scalability Quality Robustness

Thanks for Your Attention!

altair hyperworks solver technology

Technology

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