Simcenter ™ 3D applications Industry Examples
Willy Bakkers, VP Siemens DF PL STS
Realize innovation.
Restricted © Siemens AG 2017
The world is evolving
With title bar or without...
From mechanical components to smart systems integrating mechanical, electrical, controls
From known material / production methods to mixed materials, novel production methods
From defined options to mass customization and personalization
From internet connectivity to system of systems and
internet of things
Issues faced by CAE departments
Results out-of-synch with design
Disparate tools and inefficient workflows
Limited visibility and business impact
Budget and resource
constraints
Simcenter ™ Portfolio for Predictive Engineering Analytics Simcenter ™ 3D & NX Nastran
3D Pre-Post Processing
Structures Acoustics
Motion Composites
NVH &
Structural Dynamics Durability
Thermal Flow
Optimization
1D – 3D Co-Simulation TEST-CAE
Correlation
Multiphysics
Linear FEM NonLinear FEM BEM Multibody Fatigue Thermal CFD
Simcenter 3D
Siemens 3D Simulation Product Portfolio
Simcenter ™ 3D - an Inheritance of Leading CAE Solutions
NX CAE NX Nastran
Teamcenter Simulation
LMS Virtual.Lab, LMS Samtech
Nastran
Simcenter ™ 3D
3D CAE for the digital twin
Multi-discipline integration
Best-in-class simulation modeling
Openness and scalability
Leading in system simulation
Leverage industry expertise
.
Best-in-class modeling
Openness and Scalability Multi-discipline integration
Leading in System Simulation
Agenda
Leverage Industry Expertise
.
Best-in-class modeling
Openness and Scalability Multi-discipline integration
Leading in System Simulation
Agenda
Leverage Industry Expertise
Simcenter ™ 3D vs. traditional CAE
Find /
Import Data Repair /
Edit Geometry Mesh Loads and BCs
Faster initial iteration
Rapid update for later iterations
Simcenter 3D
Making noise reduction a priority
German carmaker
Simcenter 3D for Acoustics Simulation of a rear vent
• Why: allow air to escape to avoid
‘overpressure’ while driving
• Air out Road Noise in !
• The air path needs to be optimally designed to minimize noise entering the vehicle: e.g optimal placement of sound-absorbing materials
“A simulation supported process helps to define more optimal solutions earlier and faster throughout the development process.”
• Standard practice: manual, experience-based, process (not efficient)
• Achieve optimal design for multiple car variants : cost-effective
Mesh created by Simcenter 3D Very efficiently
Complex systems ‘air path’ in the rear of the vehicle
Acoustic performance of path Rear venting system
behind inner panel of trunk
German carmaker
Simcenter 3D for Topology Optimization of Tie Rod
• Same Stiffness as original design
• Minimum weight design
• Part must fit into initial design space
• Tension and compression loading > 25kN
Convergent Modeling
Verification (Simulation) Verification (Geometry)
Topology Optimization Setup Simulation
Task Initial Design
Space
Initial Design Optimized Design
Displacement: -40% 5 mm 3 mm
Max Stress: -33% 600 N/mm² 400 N/mm²
Weight: -31% 0.48 kg 0.33 kg
Tie Rod
Initial Design
.
Best-in-class modeling
Openness and Scalability Multi-discipline integration
Leading in System Simulation
Agenda
Leverage Industry Expertise
Multi-discipline integration
CFD and Acoustics
Flow-Induced-Noise for Marine Marine Propeller
Computation of Marine Propeller Noise using STAR-CCM+ and Simcenter 3D
Export the transient surface pressure on the propeller blades from unsteady CFD simulation in STAR-CCM+
Model the Fan Source and surrounding surfaces in Simcenter Acoustics.
Solve tonal and broadband Fan Noise problem including installation effects (hull, rudder, sea-level, etc.)
Flow-Induced-Noise for Wind Energy Airframe Noise
Computation of Airframe Noise using STAR-CCM+ and Simcenter 3D free-field modeling in Simcenter 3D
Acoustic propagation with installation effects in Simcenter 3D
NafemsWorld17-685
Compute the transient flow field around the airfoil in STAR-CCM+ and export the
surface pressure loading
Low frequency High frequency
.
Best-in-class modeling
Openness and Scalability Multi-discipline integration
Leading in System Simulation
Agenda
Leverage Industry Expertise
Template model
Methods specialist
@Customer or
@Siemens PLM
Input data
Openness and Scalability
Customization capabilities with NX Open
Customer challenge:
• Deploy specific simulation tasks over large group of CAE end users
Solution:
• Drag-and-drop customization capabilities
• Cost-effective creation of Visual .NET based vertical
NX Open
CAE analyst end users
Post-processing Solver
Dedicated “Vertical”
Easy-to-use GUI
Perform reliable and fast gear multi-body simulations
Customization Example #1: Transmission Builder Quick and accurate simulation of gear dynamics
• Detailed transmission design
• Simulation of gear dynamics
• Simulation of gear whine
• Take into account effects of:
• Misalignment
• Gear microgeometry
• Light-weight gears account
“It’s very impressive how the Transmission Builder captures the gear simulation process.”
• Standard practice: simulation expert needed to create models
• New approach:
• increase simulation throughput and increased reliability (less errors),
• Through automated definition and assembly of complex gear systems
Capture simulation process in ‘vertical’ solution Time to build simulation model
from 1 day to 20min Asses dynamics, noise
Customization Example #2:
Accelerate aircraft structural analysis during conceptual design
Challeng e V alue
• The number of loads-structural-loads iterations has a direct impact on the final aircraft weight. The structural design team has to rapidly find an optimized structural layout when new loads are available.
• Decreased turnaround time
• A lighter and more performant aircraft
• A shorter preliminary design phase
• An integrated solution to generate various structural layouts, apply pre-defined load cases from a database and optimize shell thickness and beam cross-sections.
Solut ion
Wizard workflow
Design &
meshing
Assign Load cases
Optimize
thicknesses
.
Best-in-class modeling
Openness and Scalability Multi-discipline integration
Leading in System Simulation
Agenda
Leverage Industry Expertise
Using an Assembly FEM Method
– Mapping CAE Assembly to CAD Assembly
Part CAD
Assembly CAD Part FEM
Part CAD
Using an Assembly FEM Method
– Mapping CAE Assembly to CAD Assembly
Assembly CAD Part FEM
Assembly FEM Orientations Multiple Instances
User Defined
• Mapping
Using an Assembly FEM Method
– Mapping CAE Assembly to CAD Assembly
Part FEM
Assembly FEM
User Defined
• Orientation
• Multiple Instances
• Hierarchy
• Characteristics
• Flexible implementation
• Fully CAD associative
• FEM only
• Mix of CAD associative & FEM only
• Follows CAD Assembly Orientations and Hierarchy
• User controlled mapping & updating
• Re-use (instancing) for multiple use
• Allows for any node and element numbers
• User controlled automatic update to latest version of FEM models
• Little chance for human errors
NASA – Kennedy Customer Case
• Facilitated cooperation between OEMs and subcontractors
• Decreased costs, time wasted translating data and potential errors
• Increased design efficiency thanks to quick “what-if” scenario
OEM
subc1 subc2 subc3
Large FEM assembly composed of
component FEM models Stabilizer component connecting with tower
Manage large FEM assemblies
FEM assembly analogous to CAD assembly, with individual FE component models
Supports very large models
.
Best-in-class modeling
Openness and Scalability Multi-discipline integration
Leading in System Simulation
Agenda
Leverage Industry Expertise – Example #1
Industry challenges in the design of Flexible Pipes
Key challenge: Product quality / reliability
Source: http://www.firstpost.com/business/renault-recalls-50000-units-of-small-car-kwid- to-fix-fuel-supply-problem-nissan-recalls-datsun-redi-go-3047830.html
Product recalls
because of fuel supply hoses, brake lines, etc.
Source: http://skybrary.aero/index.php/A332,_Karachi_Pakistan,_2014
