MSC.ADAMS Breakfast and Learn

Size: px

Start display at page:

Download "MSC.ADAMS Breakfast and Learn"

Arthur Griffin
6 years ago
Views:

1 MSC.ADAMS Breakfast and Learn Tony Sajdak and Lisa Schutte MSC.Software Corp. October 19 th 2004

2 Agenda Where we are at Fit of MSC.ADAMS in SimOffice Recent Progress MSC.ADAMS 2005 Where we are headed MSC.ADAMS 2006 and Beyond

3 MSC Product Lines VPD Application Software VPD Application Software SimOffice Stand-alone integrated VPD environment SimDesigner VPD embedded in CAD MSC.SimManager Automate and manage collaborative VPD VPD & PLM Services VPD & PLM Services

4 Emergence of SimOffice MSC has long been broadening our technology portfolio through internal R&D, partnerships and acquisitions We are introducing SimOffice, SimDesigner and MSC.SimManager to categorize our broad product portfolio; frame our development activities, and increase the value of our portfolio to our customers SimOffice Is a product line built on the foundation of MSC.Software s core software products. Is an environment in which engineers can test integrated virtual prototypes within a single, unified framework. Is based upon scaleable, interoperable product packages and configurations to help engineers in every industry solve complex product development challenges and get better products to market, faster. Is a new brand that refers to all of the stand-alone MSC.Software products of today and tomorrow. Will evolve over time to take advantage of technology advancements and new product functionality.

5 SimOffice Today

6 MSC.ADAMS 2005 Released October 6, 2004 as part of MSC s first combined SimOffice Release New Products ADAMS/Engine Piston ADAMS/Solver Shared Memory Parallel ADAMS/Car RealTime (Pre-release) Many other enhancements

7 General Enhancements Adoption of common MSC licensing New Platform Support Red Hat Linux for all MSC.ADAMS product Limited HP-UX IA-64 support Context-Sensitive Cursors XY rotation XY Translation Zoom Z rotation Center Window Zoom

8 ADAMS/Controls Themes: Enhanced Integration & Faster Simulations ADAMS and Easy5 Integration MSC.EASY5 + ADAMS External Systems Library (ESL) TCP/IP Based Communication C++ Solver Support First-order Interpolation

Unprecedented access to EASY5 data EASY5 design parameters EASY5 output results (for use in design

9 ADAMS/Controls Enhanced Integration 1) MSC.EASY5 + ADAMS External Systems Library (ESL) Embed your EASY5 models into ADAMS as shared library. Unprecedented access to EASY5 data EASY5 design parameters EASY5 output results (for use in design objectives) Perform more comprehensive What If analysis Design Study, DOE Multi-disciplinary Optimization See KB for example. Note: Requires MSC.EASY R2

10 ADAMS/Controls 2) TCP/IP-based communication Run co-simulations between different machines MSC.ADAMS Versatile communication method Start ADAMS as a server on one machine on a given port Then EASY5 (or Matlab) can communicate through that port Pipes are still available (currently the default) Distributed computing now possible See KB for example. MSC.EASY5 3) C++ Solver support Take advantage of all the newest technology GCON, Planar part, 2 nd Order integrators, etc. See KB for example. Faster Simulations TCP/IP

ADAMS/Controls Faster Simulations 4) First order interpolation

order hold on both sides of co-simulation EASY5: 1st Order is

signal quality allows integrator to take bigger steps

11 ADAMS/Controls Faster Simulations 4) First order interpolation data exchange for co-simulation Option for selecting a first order hold on both sides of co-simulation EASY5: 1st Order is the default ADAMS: Zero Order is still the default Improved signal quality allows integrator to take bigger steps Significant speed improvements for many applications See KB for example. Co-Sim

12 ADAMS/Durability Themes: Enhanced Integration & Faster Results Shortened Stress & Strain Modes C++ Solver Support Hotspot performance improvement Hotspot argument on FEMDATA statement

ADAMS/Durability Enhanced Integration 1) Shortened stress & strain modes Define sub-regions of stress in FE MNF will contain stress in only those regions Existing MNFs with

13 ADAMS/Durability Enhanced Integration 1) Shortened stress & strain modes Define sub-regions of stress in FE MNF will contain stress in only those regions Existing MNFs with undefined (zero) stress can now be optimized. Addresses performance issues Creates smaller MNFs Faster post-processing Animation Hotspot calculation See KB for example.

14 ADAMS/Durability 1) Shortened stress & strain modes Define sub-regions of stress in FE MNF will contain stress in only those regions Existing MNFs with undefined (zero) stress can now be optimized. Addresses performance issues Creates smaller MNFs Faster post-processing Animation Hotspot calculation See KB for example. Enhanced Integration 2) C++ Solver support INTERP function is now supported DAC and RPC III files can be used. FEMDATA support Take advantage of growing capabilities in C++ Solver HHT Integrator SMP parallel processing GCON, surface constraint, curve marker, etc. See KB for example.

15 ADAMS/Durability Faster Results 3) Hotspot Performance Improvement Pinpoint critical stresses quickly Up to 3X faster than 2003 release! Table of Hotspots FEMDATA See KB for example.

16 ADAMS/Durability 3) Hotspot Performance Improvement Pinpoint critical stresses quickly Up to 3X faster than 2003 release! Table of Hotspots FEMDATA See KB for example. Faster Results 4) Hotspots on FEMDATA Streamline and automate your durability processes Table of Hotspots generated automatically For a flexible body Directly from Solver DAC files may be optionally created See KB for example. Syntax FEMDATA/2, FLEX_BODY=2, HOTSPOTS=10, CRITERION=VON_MISES, RADIUS=0.0, FILE=Conrod2 OUTPUT/STRESS=DAC

17 ADAMS/Flex Theme: Ease-of of-use Flexible Body Swap Automatic Dummy Parts (Fortran Solver) Rigid-only MNF Auto-damping (Experimental feature)

ADAMS/Flex 1) Flexible-Body Swap You now have an interface

Rigid to Flex Flex to Flex Use of flexible bodies in ADAMS

Users want an easier way of incorporating flexible bodies

18 ADAMS/Flex 1) Flexible-Body Swap You now have an interface tailored for the swapping of flexible bodies. Rigid to Flex Flex to Flex Use of flexible bodies in ADAMS models is becoming commonplace. Users want an easier way of incorporating flexible bodies into their models. Alignment and Connections are are much easier!! See KB for example. Ease-of-Use

Users want an easier way of incorporating flexible bodies into their models. Alignment and Connections are much easier!

19 ADAMS/Flex 1) Flexible-Body Swap You now have an interface tailored for the swapping of flexible bodies. Rigid to Flex Flex to Flex Use of flexible bodies in ADAMS models is becoming commonplace. Users want an easier way of incorporating flexible bodies into their models. Alignment and Connections are much easier!! Connections identified automatically Three positioning methods Ease-of-Use See KB for example. Automatic Dummy parts created when using Fortran Solver! Not required for C++ Solver.

ADAMS/Flex 2) Rigid-Only MNF ADAMS/Flex will now accept a Rigid Only MNF Too much engineering time was wasted incorporating FE model into ADAMS For instance Attachment Points Where are they?

20 ADAMS/Flex 2) Rigid-Only MNF ADAMS/Flex will now accept a Rigid Only MNF Too much engineering time was wasted incorporating FE model into ADAMS For instance Attachment Points Where are they? How many are needed? Do they align with system model connectors? No longer need a full MSC.Nastran FE solve just produce without modes. File is much smaller, easy to transfer. Useful as an interim step for building and debugging ADAMS/Flex models. See KB for example. Ease-of-Use MSC.Nastran ADAMSMNF FLEX_BODY=YES, MINVAR=RIGID

ADAMS/Flex Less damping and decent speed.

damping scheme has been introduced which is step-size

Existing default damping model was often too aggressive

Running with less damping was too much of a performance

21 ADAMS/Flex Less damping and decent speed. Ease-of-Use 3) Auto-Damping (Experimental) An adaptive damping scheme has been introduced which is step-size based. Existing default damping model was often too aggressive in damping responses for certain classes of models. Running with less damping was too much of a performance penalty Improved performance of models with less damping. Flexible body models can run more robustly. See KB for example.

22 ADAMS/Solver Themes: Faster Simulations and Extended Modeling Second-Order Integrators (HHT and Newmark) 2d Model Streamlining Adaptive Jacobian pattern Shared Memory Parallel (SMP) processing Extended support for 3D expressions Expanded ACTIVATE/DEACTIVATE support SURSUB support for finite surfaces POINT_MASS support Controls & Durability support Access to Contact Area in CNFSUB & CFFSUB Available only in C++ Solver

23 ADAMS/Solver 1) Second-Order Integrators Faster solutions for flexible body simulations (Durability) and 3D contact models. HHT (or Generalized-α) Newmark-β High-frequencies damped out, lower frequencies accurately tracked Step size can increase to gain speed Acceleration solution variables Jacobian unconditionally stable No problems when time step is small Improved speed Fewer number of equations See KB for example. Faster Simulations

24 ADAMS/Solver 1) Second-Order Integrators Faster solutions for flexible body simulations (Durability) and 3D contact models. HHT (or Generalized-α) Newmark-β High-frequencies damped out, lower frequencies accurately tracked Step size can increase to gain speed Acceleration solution variables Jacobian unconditionally stable No problems when time step is small Improved speed Fewer number of equations See KB for example. Faster Simulations 2) 2D Model Streamlining Part pre-constrained to move in one of the global planes. Many ADAMS models are inherently 2D or contain 2D subsystems. More efficient than using a PART+PLANAR Joint. Runs faster. Fully compatible with all 3D elements and can coexist with an otherwise 3D model. Out-of-plane forces are efficiently ignored. See KB for example.

25 Planar 2d Part and HHT Results Fortran Baseline is 1.0 C++ Solver Performance Results for Belt Example Belt Model Run Time Performance 1.0 GSTIFF, SI2 0.9 GSTIFF, I3 0.8 HHT 0.7 CPU Ratio d 2d 3d 2d Model 2X to 6X faster in 2005!! Cylinder To Block Sphere To Block

26 ADAMS/Solver Faster Simulations 3) Adaptive Jacobian Pattern GSTIFF can automatically determine when a Jacobian refresh would improve convergence. Jacobian evaluation is time consuming. Users do not know the ideal PATTERN, which can change as the simulation progresses. Specify as PATTERN=F See KB for example.

27 ADAMS/Solver 3) Adaptive Jacobian Pattern GSTIFF can automatically determine when a Jacobian refresh would improve convergence. Jacobian evaluation is time consuming. Users do not know the ideal PATTERN, which can change as the simulation progresses. Specify as PATTERN=F See KB for example. Faster Simulations 4) SMP Parallel Processing Shorten ADAMS simulation time by utilizing multiple processors in a computer. Multi-CPU computers have become a commodity. Portions of the ADAMS simulation process can be reliably executed in parallel. Caveat: Not all of ADAMS is parallelizable, performance gains are model dependent. Expect 15-25% reduction in simulation time with two CPUs. Note: Requires ADAMS Solver SMP license

ADAMS/Solver 5) 3D expressions support Rich 3D expression language, including unit

.. Users can now extend the JOINT and JPRIM library.

3D expression no longer limited to the GCON constraint. See KB 12265 for example.

28 ADAMS/Solver 5) 3D expressions support Rich 3D expression language, including unit vectors, transformations, dot and cross product, magnitude,... Users can now extend the JOINT and JPRIM library. Replace the expert-only UCON element. 3D expression no longer limited to the GCON constraint. See KB for example. New simulation statistics are helpful CPU ORDER, HSIZE NRHS, NJAC Marker 9 Extended Modeling Marker 7 Cone rolling on a plane GCON/101, FUN = DZ(7,9,9) GCON/102, FUN = (UVZ(9)*UVZ(7)) + SIN(15D)

29 ADAMS/Solver 5) 3D expressions support Rich 3D expression language, including unit vectors, transformations, dot and cross product, magnitude,... Users can now extend the JOINT and JPRIM library. Replace the expert-only UCON element. 3D expression no longer limited to the GCON constraint. See KB for example. New simulation statistics are helpful CPU ORDER, HSIZE NRHS, NJAC Extended Modeling 6) ACTIVATE / DEACTIVATE CONTACT now supported Useful for temporary forces For instance, Active during Statics, Inactive during Dynamics. COUPLER Useful for getting rotational components up to speed GFORCE, VFORCE, VTORQUE Popular forces can now be easily disabled. Old work-arounds are no longer necessary.

ADAMS/Solver 7) SURSUB for Finite Surface SURSUB can describe edges and holes. Automatic edge forces prevent a surface marker from exiting a finite surface. See KB 12342 for example.

30 ADAMS/Solver 7) SURSUB for Finite Surface SURSUB can describe edges and holes. Automatic edge forces prevent a surface marker from exiting a finite surface. See KB for example. Extended Modeling 8) POINT_MASS support No longer a limitation Gain efficiencies, where possible 9) Controls & Durability support All A/Controls modes functional Durability solutions are faster when using C++ solver features. INTERP function is now supported DAC and RPC III files can be used. 10) Access to Contact Area Contact Area now available through user-written subroutines CFFSUB, CNFSUB Customize your own contact force models.

31 ADAMS/Vibration Themes: Extended Modeling and Ease-of of-use Frequency Dependent (FD) elements Instrument Packs for Python Interface Flexible body modal energy shading Plotting input actuators Phase on PSD acutator Complex plane plot tracking Modal Table next to scatter plot User-specified frequencies More vibration design objectives Saving of results in XML file

32 ADAMS/Vibration 1) Frequency Dependent elements Modeling elements that are functions of frequency. Choose from 4 bushing types: Pfeffer Linear Simple FD Simple FD-Bushing General Input stiffness and damping coefficients May be derived from test data. See KB for FD example. See KB for example of parameter derivation. Extended Modeling 1D and 3D Configurations Available

33 ADAMS/Vibration 1) FD elements Modeling elements that are functions of frequency. Choose from 4 bushing types: Pfeffer Linear Simple FD Simple FD-Bushing General Input stiffness and damping coefficients May be derived from test data. See KB for FD example. See KB for example of parameter derivation. Extended Modeling 2) Instrument Packs for Python Batch processing of vibration models New transfer functions Dynamic stiffness & Dyn. Inertia Compliance, Impedance Mobility, Accelerance Force & Motion Transmissibility See KB for example. Multiple Operating Points Perform forced vibration analysis and multiple points in time. Python plotting See install directory for more example(s).

Kinetic Energy Strain Energy Plot at a given frequency of

34 ADAMS/Vibration Extended Modeling 3) Flexible body modal energy contours Identify regions of energy concentration Kinetic Energy Strain Energy Plot at a given frequency of excitation Animate over full range of frequencies See KB for example.

ADAMS/Vibration 4) Plotting Input Actuators Plot magnitude and phase

Save for later viewing in the postprocessing environment.

Extended Modeling 5) Phase on PSD actuator The phase angle for the

35 ADAMS/Vibration 4) Plotting Input Actuators Plot magnitude and phase in the modeling environment. Useful for user actuators. Save for later viewing in the postprocessing environment. See KB for example. Extended Modeling 5) Phase on PSD actuator The phase angle for the PSD actuator may now be defined by a spline. In prior releases you were limited to using a constant phase angle. Spline Input for Phase

Ease-of-Use 7) Modal table & scatter plot Quickly display modal

36 ADAMS/Vibration 6) Complex plane plot tracking Plot tracking tool now works with the eigenvalue scatter plot. Ease-of-Use 7) Modal table & scatter plot Quickly display modal table and scatter plot together, simultaneously. See KB for example. See KB for example.

37 ADAMS/Vibration 8) User-specified frequencies Enter a list of specific frequencies at which you want results. Ease-of-Use 9) More vibration design objectives Expanded offering, more choices than 2003 SP1. Eigen Imaginary Part Sum of Magnitudes Freq. Resp. Magnitude of sums: 1 Input, Multiple Outputs Freq. Resp. Magnitude of sums: All Inputs, Multiple Outputs Area under FRF curve(s) Freq. Response Area: 1 Input, Multiple Outputs Freq. Response Area: All Inputs, Multiple Outputs See KB for example.

38 ADAMS/Vibration 10) Saving results to XML.res Results from a Vibration analysis can now be saved for future use. The results file (.res) can be used to store the vibration results. Plot vibration analysis data Perform vibration animation using data from a previously solved vibration run. Load.res, from PPT menu File - Import - Vibration Results See KB for example. Write vibration plot plot curve data data to to an an xml xml results file mdi mdi vibration vibration save_plot_data save_plot_data & & vibration_analysis= vibration_analysis= YourVibAnaObject YourVibAnaObject & & results_file_name= results_file_name= YourResFileName YourResFileName & & plots plots = = ThePlotsOfInterest ThePlotsOfInterest Restore vibration plots Ease-of-Use mdi mdi vibration vibration plots_from_vars plots_from_vars & & analysis analysis = = TheAnalysis TheAnalysis

export of the files independent of running the simulation Object Activity now displayed in

39 ADAMS/View Ability to import multiple analysis files in one step Exporting Analysis Files File Export menu now has choices of graphics, request, results and analysis files Allows export of the files independent of running the simulation Object Activity now displayed in the Database Navigator ADAMS/View Interface Support for Curve Marker Generalized Constraint (GCON) Support

40 ADAMS/PostProcessor Results Files > 2 Gigabytes now supported Ability to restore default layout for ADAMS/PostProcessor Before After

Scatter Plots of workspace information ASCII Conduit

41 Expanded Applications ADAMS/Insight Refining Regression models Automatic refinement Correlation Computations Scatter Plots of workspace information ASCII Conduit enhancements Graphical Difference Tool User Defined Post-processing methods

ADAMS/Car New Full-Vehicle Event Generator New

longer need to create or maintain separate

42 ADAMS/Car New Full-Vehicle Event Generator New Driving Machine replaces DriverLite Easier to Manage Vehicle Assemblies Add, Remove, Replace, Activate/Deactivate Subsystems in an assembly No longer need to create or maintain separate assemblies for including, removing, deactivating subsystems

DOF) ADAMS to Nastran tool Create a linearized Nastran

43 ADAMS/Car Ride Frequency Dependent Elements Frequency Dependent Damper (1 DOF) Frequency Dependent Bushing (6 DOF) ADAMS to Nastran tool Create a linearized Nastran model of a vehicle from an existing ADAMS/Car full-vehicle assembly

44 ADAMS/Tire Add support for ADAMS/Linear and ADAMS/Vibration to ADAMS/Tire FTire and ADAMS/Tire SWIFT. Support use of ADAMS/3D Road with ADAMS/Tire SWIFT and ADAMS/Tire FTire. New Tire and Road tool in ADAMS/View ADAMS/3D Road enhanced to include obstacles

45 ADAMS/Engine Piston New Product Allows ADAMS/Engine users to easily analyze secondary piston motion using standard components and output.

46 ADAMS/Engine Faster simulation of ADAMS/Engine chain and belt models C++ Solver HHT Integrator 2D Elements C++ solver now the default for ADAMS/Engine

Additional MSC.ADAMS 2005 Release Information For more details see: http://www.

47 Additional MSC.ADAMS 2005 Release Information For more details see: ation/2005/releasenotes.html

vehicle design Validated models obtained from ADAMS/Car Accurate models

48 ADAMS/Car RealTime New Product Pre-release release in MSC.ADAMS 2005 Officially released Q Simplified models for conceptual vehicle design Validated models obtained from ADAMS/Car Accurate models for rapid design of vehicle control systems 10 second lane change maneuver solved in 1.18 seconds!

Simplified Vehicle Model W CRR W 0RR z W CLR W 0LR x y

0LF Independent front and rear suspensions Sprung Mass: 6

Each Tire: 2 auxiliary states Input Channels: 89 Output

49 Simplified Vehicle Model W CRR W 0RR z W CLR W 0LR x y Direction of suspension travel z L wb W CRF W 0RF W CLF W 0LF Independent front and rear suspensions Sprung Mass: 6 DOF (Representing a rigid vehicle body) Each Wheel: 2 DOF Each Tire: 2 auxiliary states Input Channels: 89 Output Channels: 576 z y Ltk H wc,r x H wc,f H rc Side view Front view

50 MSC.ADAMS 2006 Currently in Development Tentatively scheduled for release late Q Continued Focus on Performance and Integration

51 MSC.ADAMS 2006 ADAMS/Durability Modal-based stress recovery with Nastran Toolkit ADAMS/Flex Generalized Modal Damping State Dependent Modal Force

52 MSC.ADAMS 2006 ADAMS/Vibration System Level NVH with Nastran ADAMS/Solver Linear and Vibration Support in C++ Solver EASY5 Integration ADAMS C++ Solver available in EASY5

53 ADAMS/Driver Replacement of existing ADAMS/Driver with new driver controller developed by MSC: Capable of bringing the vehicle to its dynamic limit Emulates human driving

54 ADAMS/Car Ride Extend Pfeffer bushing element in order to support amplitude dependency Enhance ADAMS/Vibration integration in 4post testrig Wheel Out of Balance Analysis Multi-post testrig for multi-axle vehicles

55 ADAMS/Insight Continued Integration with other MSC Products MSC.Robust Design MSC.EASY5 MSC.Patran

56 Beyond MSC.ADAMS 2006 Continued Focus on Integration MSC.Nastran, MSC.EASY5, MSC.Marc, MSC.Fatigue integration efforts will continue to mature Solver level integration of MSC.Dytran planned C++ Solver will continue to be enhanced and become default MSC.ADAMS solver and eventually default system level solver

57 Beyond MSC.ADAMS 2006 Continued enhancement of ADAMS/Car RealTime Real-Time HIL option Potential Vendors: Opal-RT, NI, ADI, dspace Evaluate response of embedded system hardware to a variety of operating conditions Assess software and hardware integration issues before the vehicle is actually built MSC.EASY5 support User-defined block (DLL) Extension to ADAMS/Chassis Solid axle suspensions Standard event post-processing (reports and plots)

58 Beyond MSC.ADAMS 2006 Automotive specific Durability tools for ADAMS/Car and ADAMS/Chassis

59 Beyond MSC.ADAMS 2006 Continued Focus on merger of ADAMS/Car and ADAMS/Chassis Common Templates Common Interface One Product

60 SimOffice

61 SimOffice SimOffice represents an evolution of existing standalone brands MSC.ADAMS will continue to exists but over time will be more tightly integrated with other MSC products via the SimOffice Framework Will establish next generation product with proven components and share components among various products Goal is to bring all users along in this evolution

62 Staying Involved with MSC.ADAMS Receive periodic, official MSC.ADAMS news Discuss MSC.ADAMS with experts & peers worldwide In our online forums - Find product overview and what s new information Obtain technical support information

63 Thank you!

Introduction to Adams/Solver C++ Jose L Ortiz, PhD. Adams User Meeting Munich - May 18, 2011

Introduction to Adams/Solver C++ Jose L Ortiz, PhD. Adams User Meeting Munich - May 18, 2011 Agenda A Brief History of Adams/Solver C++ Advantages and Disadvantages of Adams/Solver C++ Side-to-side C++/FORTRAN