md adams and simxpert motion 2010.2 -highlights -...

MSC Confidential

MD Adams and MD Adams and SimXpertSimXpert Motion 2010.2 Motion 2010.2 -- HighlightsHighlights

Autumn 2010 UserAutumn 2010 User’’s Meeting s Meeting

ItalyItaly

MSC Confidential

Notice

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The development, release and timing of any features or functionality described for

MSC.Software’s (“MSC”) products remains at the sole discretion of MSC.

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MSC Software Confidential October 18, 2010 2

MSC Confidential

Agenda

• Adams 2010 Review

� Release Highlights

• Review of SimXpert Motion

� What’s New in 2010

• Introducing Adams 2010.2

� Release Highlights

� Beta Program

• Calendar 2011 Preview

10/18/2010 3

MSC Confidential

Adams

2010 Review

MSC Confidential

Adams 2010

� MD Adams 2010 released in December 2009

� MSC Adams 2010 released in February 2010

MSC Confidential

Adams 2010

Native Contact Elements– Analytical methods for determining

intersection of solids

– Supported solids

• Sphere

• Cylinder

• Ellipsoid

• Box

� Smoother contact forces

� Increased solution speed

� Broad applicability:

• Bearings, Tracked Vehicles, Belts

Cables, Mechanisms, etc…

• Anywhere this type of geometry

is in contact

“Contact performance in Adams offers substantial performance improvement…working with MSC software and services I have developed high end naval animations that have helped our company win business” -- Major US Based Defense Contractor

MSC Confidential

Adams 2010

Truck Plugin

• Extends Adams/Car database and

modeling paradigm to

� 18 Wheel Tractor and Trailer Vehicles

� Busses and off highway vocational

vehicles

� Realistic vehicle sub-systems

• Quickly build Ride, Durability,

Stability models

• Quickly evaluate competing design

options

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8

Adams 2010

Soft Soil Tire Road

• Modeling of tire-soil interaction forces for any tire on elastic/plastic road surfaces such as sand, clay, loam and snow.

• Based on theory by Bekker & Wong

• Two Tire-Road contact models with multi-pass effects:

� Elastic-plastic - elastic tire: tire deflection is taken

into account; road plastic deformation history is

stored.

� Visco-elastic - rigid tire: no tire deflection; road

viscous deformation is stored.

• Soil properties section is added to Adams/Tire

road file

Experimental Feature for this Release

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Adams 2010

Curved Regular Grid Road

9

– Describes 3D Surface as Z-Values over Discrete Rectangular Grid Equidistantly Spaced in X and Y

– Uses OpenCRG ® Standard (www.opencrg.com)

� Improved Durability Load Profiles

� Finer Ride/Comfort Analyses

� Efficiency gains compared to triangulation:

• File Size (only z-values have to be saved)

• Memory Demand

• File Loading Time

MSC Confidential

Adams 2010

Isolator Component Improvements

• Frequency dependency

• Independent modeling of static,

dynamic stiffness and loss angle

• Parameter identification

• Support for customized bushings

10/18/2010 10

Transfer Function

(frequency dependency)

NonlinearStatic Spline

Force

k

d(s)

s

k(s)

d Bouc/WenHysteresis(amplitude

dependency)

MSC Confidential

Adams 2010

Tire Data Fitting

• Create Adams/Tire property file

from measured or virtual test data

• Utilizes Tire test rig

• Modify tire characteristics from

tire property file

• Support for Pacejka magic formula

models

10/18/2010 11

MSC Confidential

SimXpert Motion

What’s New in 2010

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External Solver Support

13

• Summary

• Gives users an option to run simulations from

the SimXpert GUI using external solver

• A preferred mode for some users

• Allows customers to schedule solver jobs

independent of the GUI

• Facilitates “Client Edition” for SimXpert

Motion

• How did you do it before?

• Internal solver only

• Workstation Edition only

• Export adm and acf files and run MD Adams

externally

• Why is it better?

• Leverages an existing MD Adams installation

and investment

• Can be more efficient for large simulations

• Application

• All Motion users especially Aerospace and

Automotive

New

Fields

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14

Transportation Extension

• Summary

• Detailed Tire and Road Modeling

• Library of standard Tire and Road Models

• Road Builder Tool for defining roads

including obstacles

• Height Sensor to measure distance above

road


• Custom tire and road models


• Standard Tire Interface (STI) compliant

• Can be used with all existing Tires and

Roads from MSC

• Application

• Automotive Vehicle Dynamics

• Aerospace Ground Loads

MSC Confidential

• Summary

� Design-Time Parametric Expressions now available

in Motion Workspace

• Python-based

• Persist with model in Motion

– Evaluated in the FE Workspaces

� Complete set of Adams/View location and

orientation functions included

� Users can define and reference their own functions

by registering them in Tools->Options

� To enter an expression, enter ‘=‘ in UI field,

followed by expression.

• Examples:

=loc_along_line(Part1.CS1,Part2.CM,100.0)

=loc_along_line([100,100,100],Part2.CS2,

inch(500))

=loc_relative_to(Part1.CS1,[500,0,0])

=54 + BoomLength.value

15

Expressions

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16

Design Variables

• Summary

• Can be referenced in any property editor input

field

• Can be referenced in expressions

• Design Variable types

• Real (with or without units associativity)

• Integer

• String

• Object

• Expression


• Only available in Adams product line


• Allows for parametric model building

• Model simplification

• Application

• Advanced model building

MSC Confidential

Save Model as Python

From model to Python

and vice-versa!

17

• Summary

• Export Motion model as a python script

• Accelerates learning of Motion Python API

• Promotes auto-generation of models


• Manually authored python scripts

• Saved models as binary .SimXpert files


• Stable, ASCII text form of a model

• Application

• Model persistence

MSC Confidential

18

Property Table

• Summary

• Spreadsheet-like utility for

editing multiple objects

• Includes many spreadsheet

features

• Copy/Paste

• Import/Export

• Drag fill

• Column display filters

• Works for all modeling objects


• User could multi select objects

and edit in a single property

editor and those edits would be

applied to all objects selected


• Easier to modify multiple objects

simultaneously

• Objects can contain unique data

• User configurable

MSC Confidential

Flexible Edge Contact

19

• Summary

• Curve-Curve Contact expanded to allow

selection of flexible edges

• Flex edges can contact other curves or flex

edges

• Flex Edge Creation

• Automatic via MNF

• Manual via node selection


• Required re-mesh to use Solid FE instead

• Approximations: Point-to-plane, point-to-curve,

or rigid ‘dummy’ geometries attached to edges


• Edges of shells auto-detected

• Fast solution, easy-to-use

• Application

• Mechanism design and performance

• Rolling and Sliding contact (gears, cams, slots,

etc.)

MSC Confidential

Clearance Object

20

• Summary

• Solver based Clearance calculation

• Can be defined between any two parts:

• Rigid to Rigid, Flex to Flex, Rigid to Flex

• Threshold support

• Specify a maximum distance for which the

clearance calculations will not be computed.


• Custom subroutine


• Allows for sensors and/or controllers to be used based

on clearance calculation

• Flexible Body Subregion support

• Faster calculation when the area is known.

• Allows multiple regions for the same parts to be

analyzed rather than just getting the lone

minimum clearance between the two bodies

• Application

• Aircraft movables – wings, flaps, rudders

MSC Confidential

Clearance Analysis Post Processing

21

• Summary

• Clearance objects are dynamically drawn

during animation

• The user can chart the following for each

clearance object :

• Minimal distance

• Location of minimal clearance points

on each part


• Only available in Adams/PPT


• Available in SimXpert

• Allows for custom templates to be created

to automatically animate and chart

clearance results

• Application

• All Motion models can benefit

• Aircraft movables – wings, flaps, rudders

• Automotive wheel envelopes

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22

Scripted Simulations

• Summary

• ACF Based Scripted Simulation

• Direct text entry or file reference


• Python scripting


• Same behaviors as standard simulation

• Re-run capable

• Animation during simulation

• Simulation-specific solver settings

• Results Management

• Increases MD Adams modeling coverage

• Application

• All motion users can benefit

MSC Confidential

23

Adams-to-Nastran Interface

White Box Export

SimXpertStructuresWorkspace

SimXpertMotion

Workspace

Nastran

• Summary

• Support for Dynamic operating point(s)

• Export graphics using a wireframe approach

• Export equivalent CBUSH representing Adams forces

• Support output styles requested by Auto OEMs

• Export FRICTION forces

• Support for dummy parts


• Limited to static operating point(s) via custom action

in R3.2


• New to SimXpert

• MD Nastran .bdf written with graphics INCLUDE file

for visualization

• Option to load written file immediately in Structures

Workspace (Discipline Integration)

• Use of re-runnable Scripted Simulation

• Application

• All motion users can benefit, mostly NVH

MSC Confidential

Adams/Linear Support

24

• Summary

• Support for Adams/Linear model linearization

• Can linearize model about any operating point

• Initial Conditions

• Static solution

• Dynamic solution

• ABCD or MKB matrix export

• System mode shape animation

• Root Locus charting for one or more eigensolutions


• Was not available in previous releases


• Fast, accurate, robust system level linearization

analysis

• Application

• Linearization of Motion models

• System modal energy distribution

• Model stability analysis

• Control System design

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25

Motion – Systems and Controls Integration

• Summary

• New SCInterface Object will facilitate inclusion of

Systems & Controls or Simulink models

• Streamlined signal connection between motion and

systems and controls models

• Modeling features

• Signal Unit Conversion

• Signal Disturbance


• Custom python scripting


• 1 or more flexible bodies (Structures WS)

• Multi-Body Dynamics Model (Motion WS)

• 1 or more systems designed in Systems & Controls

• Hydraulics & Gas Dynamics

• 1 or more control systems from Matlab/Simulink

• Application

• Automotive – ABS, Active Roll Control, Steering, Hybrid

• Aerospace – Flight Control, Landing Gear Hydraulics

MSC Confidential

Plant Inputs, Outputs, and States

26

• Summary

• New objects for Linear and Co-Simulation

support

• Plant Input

• Plant Output

• Plant State

• CS-based Plant State


• Linear support was not available in previous

versions


• Gives users ability to linear and co-simulation

analysis

• Application

• System level linear analysis

• Co-Simulation with Controls Systems

MSC Confidential

User-Defined Objects

27

• Summary

• User extension mechanism

• Higher-level aggregation object

• Lets users manage a parametric collection of

modeling objects via python-based implementation

• Action file based, UI defined using Template Builder


• Series of individual objects


• Same behaviors as core objects

• Activate/Deactivate

• Hide/Show

• User control of icon, model browser folder

placement

• Application

• Re-use of common modeling constructs

• Industry-specific higher-level aggregations

• End-user custom modeling toolbox

MSC Confidential

User-Defined Simulation

28

• Summary

• Method for users to define their own simulation

objects

• Python-based implementation

• Action file based, UI defined using Template Builder


• Custom python scripting


• Leverages standard behaviors of all simulations

• Model Browser integration

• Animation during simulation (including follow

object)

• Event-specific simulation settings

• Results Management

• Application

• Re-use of common modeling constructs

• Industry-specific higher-level aggregations

• End-user custom modeling toolbox

MSC Confidential

What’s New In Adams 2010.2

Available on SDC December 2010

MSC Confidential

SimManager Client InterfaceEfficiency and Productivity

• Description

– An Integrated Environment for Adams Data and Process Management

– Publish and Retrieve Valuable Adams Model and Results Data

• Benefit

� Manage Your Simulation Data!

� Track Audit Trail History of Model and

Result Pedigree

� Distribute Simulation Across Attribute

Teams

� Capture and Leverage Expertise

““Which .Which .admadm file created those results?file created those results?””

““What were the solver settings?What were the solver settings?””

““Can you email me the data set?Can you email me the data set?””

Adams

SimManager

MSC Confidential

CAD Interop

Ease of Use• Direct import and export of CAD geometry

• File types supported:

� CATIA V4 and V5

� Pro/E

� SolidWorks (import only)

� UG NX

� Inventor

� ACIS, JT, VDA, etc.

10/18/2010 31

MSC Confidential

Run Time ClearanceRun Time Body States

10/18/2010 32

• Description

� 3D States During Runtime

� Displacement, Velocity, Acceleration

• Rich Set of Solver Functions

� Define Solver Expressions

� Kinematic States

� Solver Force Definitions

• Ease of Use and Flexibility

• Benefit

� Eliminate Post Processing

Bottlenecks

� Find Interference Quickly and Fix It

� Define a Host of New Force Types

DCLEAR(id) Clearance distance

ACCCLEAR(id [,r]) Relative clearance acceleration

VCLEAR(id [,r]) Relative clearance velocity

IDCLEAR(id [,r]) Position of the I body clearance point

IVCLEAR(id [,k] [,r]) Velocity of the I body clearance point

IACCCLEAR(id [,k] [,r]) Acceleration of the I body clearance point

ICLEAR(id) Adams id of the I body used in the clearance calc

...

MSC Confidential

MFORCE Visualization - Airplane Example

20 aero forces are modeled by modal load cases for the various control surfaces

MFORCE visualization

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3434

Adams C++ SolverPerformance and Robustness

New C++ Solver technology� New Solver; NOT a copy of F77 solver

� Standard for Adams/View and horizontals

� Standard for SimXpert Motion workspace

� Standard for Adams Verticals in 2011

Why investing in C++ technology?� New solvers: HHT, HASTIFF, UMFPACK

� Solver Speed

� Shared Memory Parallel

� Parallel Performance

� FLEX and native contact

� Exact Linear

� GCON

� Accuracy and Performance

Why is it better?� Faster delivery of new features to the user

� New features drive speed and robustness

MSC Confidential

FTire Interface EnhancementAccuracy and Performance

• Improved FTire – Adams/Tire interface for moving road simulations� Road and wheel states are now

calculated relative to the ground part

� Correct solutions for tire models withinternal masses like FTire up to 100 Hz

• This enhancement results in Accuracy in tire dynamics for up to 100Hz

MSC Confidential

FTire Modeling ImprovementEase of Use

• Expose FTIRE input parameters

such as stiffness in the Data Set

� DOE parameter definition in the tire property file

� Adams/Tire uses a doe_array referenced by

design variables

• Enable Design of Experiments

using FTire parameters

“We have been quite successful using Adams/Car

and FTire models to integrate with our testing

rigs to generate accurate hybrid simulations.”

-- MTS, test equipment manufacturer

10/18/2010 36

...$-------------------------------------------------- ----------------DOE_PARAM[DOE_PARAM]p1 = 5.0...$-------------------------------------------------- ---------------------DATA[FTIRE_DATA]$...............................static and modal da ta for 1st infl. Pressurefirst_deflection = p1*2 $ mm...

Object Name : .MDI_Demo_Vehicle.TR_Front_Tires.til _wheel.doe_arrayObject Type : Numbers ADAMS_ArrayParent Type : ac_tireAdams ID : 902Numbers : 5.0 ( .MDI_Demo_Vehicle.TR_Front_Tires.til_wheel.doe_p01) ...

MSC Confidential

3rd party module updates

• FTire 2010-4http://www.cosin.eu/

10/18/2010 37

• OpenCRG 1.02http://www.opencrg.org/

• MATLAB/Simulink 2010a

MSC Confidential

Road OffsetsEase of Use

Allows to change the position and orientation of the road

10/18/2010 38

. . . WIDTH = 500.000BANK = 0.00$------------------------------------------------OF FSET[OFFSET]X = 0.0Y = 0.0Z = 0.0PSI = 0.0THETA = 0.0PHI = 0.0$------------------------------------------DATA_POI NTS[DATA_POINTS]{ X Y Z WIDTH BANK MU_LEFT MU_RIGHT } 12.50000E+04 . . .. . . ..

MSC Confidential

3d Spline Road ImprovementsEase of Use and Performance

• Improved Road normal calculation

� faster

� Uphill driving

� Banked roads

• More efficient contact point

calculation and road overlap

algorithm (open-closed)

10/18/2010 39

MSC Confidential

Tire & Road ImprovementsEase of Use

• Quasi-statics constraint� Ensures zero relative rotation for

both wheels during q-statics setup

� Additional input parameter for

ac_tire UDE (“dual_flag”)

• Support for FTire Roads� Event dboxes and Tire Solver Interface (sorry, no visualization)

� Supported formats

• Regular grid road (.rgr)

• 2D road formats (.crm)

• user-written road models (.urm, .usm)

� Only in combination with Ftire (property file names are passed through unprocessed)

10/18/2010 40

MSC Confidential

SmartDriver Enhancements

• New SmartDriver Tire Interface

� Improved speed profiles and vehicle limit driving

� Offers interfacing with user defined tire models

• FTire:

Equivalent Tire property file option for faster SD speed profile calculation

� Possible to generate equivalent PAC2002 file in combination of Tire testrig and TDFT

10/18/2010 41

. . .$-------------------------------------------------- -----------------------MODEL[MODEL]

property_file_format = 'FTIRE'gravity = 'earth'sd_equivalent = 'S:/adams/tires/pa c2002_235_60R16.tir'tire_construction = 'pneumatic_tire'n_tire_states = 30 $ -activate_thermal_model = 0 $ 0 or 1

. . .

MSC Confidential

SmartDriver & Event Builder improvements

� Machine Control FeedForward controller

• New low pass filter for the Rolling

Resistance correction

• Rolling Resistance effect turned ‘off’

by default (except in atruck plugin).

• Exposed in Event Builder and via

environment variable

“MSC_SD_FEEDFWD_ROLLRES”.

� SmartDriver Axle Coupling Factor

• Now exposed in the Event Builder

• Scales the friction ellipse used in

SmartDriver (default is set to 0.75) to

improve target velocity profile driving

the vehicle at its limits.

� Mini-Maneuver Duplicate and Delete

42

MSC Confidential

SmartDriver & Event Builder improvements

� Machine Control FeedForward controller

• New low pass filter for the Rolling

Resistance correction

• Rolling Resistance effect turned ‘off’

by default (except in atruck plugin).

• Exposed in Event Builder and via

environment variable

“MSC_SD_FEEDFWD_ROLLRES”.

� SmartDriver Axle Coupling Factor

• Now exposed in the Event Builder

• Scales the friction ellipse used in

SmartDriver (default is set to 0.75) to

improve target velocity profile driving

the vehicle at its limits.

� Mini-Maneuver Duplicate and Delete

43

MSC Confidential

Event Road & Path visualization

• Import Road from file

• Construct Road to user inputs

� Cornering and Straight Events

• Remove Road or path graphics

• Edit file in road builder or text editor

• View file in Info Window

• Superimpose path

� Smartdriver events

with driver course

10/18/2010 44

MSC Confidential

Tilt Table AnalysisEase of Use

• Dynamic and Quasi-Static Mode

• Force Sensor triggered end condition

10/18/2010 45

MSC Confidential

Animation ObjectsSuperior Visualization

• Utility to add “landscaping”

and moving “obstacles” to

your animations:

� Trees

� Buildings

� Moving traffic

10/18/2010 46

MSC Confidential

Recent Patches for previous ReleasesResponsive Development

10/18/2010 47

• APN-523 (MDR3/2008r1, comprehensive):

� Ftire update to version 2.11

� Rolls-Up and supersedes previously released patches

� APN-472, APN-516 (Tire) APN-515 (Smartdriver)

� APN-482, APN-486 (Solver) APN-485, APN-491 (Car)

� APN-481, APN-504, APN-508, APN-509 (View)

� Contains 160+ defect corrections and critical enhancements

• APN-529 (2010, C++ Solver):

� Corrects SMP and other performance issues with contacts

• APN-531 (2010, comprehensive):

� Ftire update to version 2010-3 r2883

� Enables DOE studies with Ftire properties

� Improves the Ftire Interface for moving road simulations

� Rolls-Up and supersedes APN-524 (Car, Tire, Smartdriver)

� Contains 48 defect corrections and critical enhancements

MSC Confidential

Student EditionFor the Students

• MD Adams 2010.2 Student Edition

� December 2010

• Free Access to the Power of Adams for Students

• All Core Adams Products (not verticals)

� Only Limitations Are on # of Parts and Flex Body Size

• Maintain Adams Usage at All Skill Levels

10/18/2010 48

MSC Confidential

Adams 2011 Preview

MSC Confidential

Product Investment ThemesAdams 2011

Key Technical Initiatives Value

Productivity Applications

Machinery: Gears, Tracks, Belts, Cable ModelingWind: Rotor System, Powertrain and Tower Modeling

Controls Integration SmartDriver Automotive Controller

HPC C++ Solver Standardization:

Shared Memory Parallel & HHT integrator

Durability, NVH, Vehicle Dynamics

Tire modeling for Ride and Durability

DOE/Stochastics Adams/Insight Enhancements to improve Global Optimization

October 18, 2010 50MSC Software Confidential

MSC Confidential

Vehicle modeling and events

• Modeling Element Candidates

� Leaf Spring Preprocessor

� Air-Spring Set-Up

� Automatic Transmission

� 4WD Driveline

• Vehicle Event Merger Candidates

� SVC in Car

� Static & Dynamic Aligning Torque

� Straight-Line Behavior

� Straight-Line Impulse Steer

� Cornering Impulse Steer

� Ramp Climb

� Cross articulation

� Steady State Sidewind

� Braking on split µ

� Constant Velocity Straight

10/18/2010 51

MSC Confidential

Tire Modeling

• 3D Tire-Road Contact model

� Accounts for tire enveloping

� All handling models

• PAC-RIDE:

� PAC2002

+ 3D Tire-Road contact

+ Tire Belt Rigid Ring part

� Extends valid frequency

range of PAC2002 tire

model into Ride Applications

• Tire Data Fitting Tool Support

10/18/2010 52

MSC Confidential

Thank you

md adams and simxpert motion 2010.2 -highlights -...

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