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ATOA Scientific Technologies Multiphysics CAE for Innovation TM
Dr Raj C Thiagarajan
ATOA Scientific Technologies Pvt Ltd
Multiphysics CAE for Engineering Innovation ICCMEH- 2014 Keynote 17 Dec 2014
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Why are we here?
2
• Mythology
• Theologist
• Philosopher
• Scientist
– Physics, Chemistry, Biology, Mathematics….
• Engineers
– Civil, Mechanical, Electrical, Chemical…
• Multidisciplinary
– Nano, Bio, Info, Cognitive
• Multiphysics CAE for Engineering Innovation
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Engineering Innovations
3
• Shelter, Tools, Pottery, Textile..
• Wheel
• Arch Bridge
• Gun powder
• Mariners Compass
• Paper Making
• Printing Press
• New paper
• Arc lamp, Stem locomotive, Automobiles
• Polymer: Jet Engine: Composites: www:
• Mobile Phones : 3D printing
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Industrial Engineering Innovation Cycle
4
• Wealth creation cycle
• Contributions for overall economic growth
• Long cycle and low Success Rate
• Simulation based product design for acceleration of Engineering innovation
Basic Research
Applied Research
Industrial Research
Innovation/ Product
development
Commercialization
Wealth Creation
ACADEMIC INDUSTRY
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Simulation Based Product Design
5
• Simulation is considered third pillar of Science & Technology
• Simulations has No Cost constraints, harsh/unrealistic parameter range, EHS concerns.
• Reliable, efficient and affordability is the key driver for Concurrent Product Development and Innovation
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Design Change Cost in product development • Cost of fixing = Stages X Times
• Cost of Design changes increases exponentially with product development cycle.
• 80% of the product cost is determined or committed at the concept design stage
• Management influence reduces over time
• CAE for first time right product development
Product Planning
Concept Design
Final Design
Pilot Production
Mass production
HIGH
Low
Act
ivit
y, In
flu
ence
Ind
ex,
Des
ign
ch
ange
Co
st
NPI Activity
@
Part
1X
@
Sub assembly
10 X
@
Final Assembly 100 X
@
Dealer
1000 X
@
Customer
10000 X
6
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
CAE for Engineering Innovation
7
Engineering Innovation
Multiscale Multiphysics
Multimaterial
Engineering is Conversion of Material into Useful Product
Industrial Drivers: Cost, Weight and Performance
CAX (CAD, CAE, CAM) product development for first time right
Multiphysics, Multimaterial and Multiscale for Innovative Design
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note 8
Multiphysics
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Modeling
9
• Product Design is Multiphysics but are Designed for Dominant Physics
• Technology adaptation trend vs industry
• Current Technology and maturity level Enables Affordable and Reliable Multiphysics Product Design
• Multiphysics Design for First time right cost effective, faster product development.
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Modeling
10
Constitutes more than
one component with
governing equation.
• Coupling at Bulk, interface level:
– Magneto hydrodynamics , Reaction transport
– Fluid structure, aero elasticity, laser heating
• Coupling at time and length Scale (multiscale):
– atomistic to continuum Damage mechanics
• Coupling at Material Scale (multimaterial):
– Homogenization from nano, micro, macro
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Examples
Multiphysics
Stru
ctu
ral
The
rmal
Flo
w
Aco
ust
ics
Dyn
amic
s
EM/O
pti
cs
Ch
em
ical
Bio
-Me
dic
al
Par
ticl
e
Industrial Examples
Aero elasticity Aircraft wing, wind turbine, helicopter blades, micro turbines, long bridges,
Fluid Structure Offshore foundations, Sloshing, actuators, compressors, Induction
Conjugate Heat transfer
Racing car, offshore pipes. Gas turbine, forming, welding, electronic packaging,
NVH, aero acoustics
Acoustic panels, sound barrier, sonar, Automobile, aero engine, speakers
Chemical Transport
Composite cure, reactive polymer flow, adhesive, Biomedical
Biomechanics BioCAE
Medical Imaging, Orthosis, prosthesis, ergonomics, Medical Therapy.
Piezo, thermo electricity
Ultrasonic probe, MEMS sensors, TE refrigeration, Electrical connectors.
Electromagnetic Heating
Non conventional / Non Conduction heating: Laser, RF, Microwave
Battery Physics
Solid Oxide, Lithium , Fuel Cell, Battery powered automobile
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Design: Stethoscope
12
• Acoustics Performance improvement
• Sound propagation
• Noise effects
• Material, Geometry
• Electromagnetic, electrostatic => acoustical energy
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Design: Chest Belt
13
• Bio electrical signal propagation in cardiac tissue using the FitzHugh-Nagumo equations and the Complex Ginzburg-Landau equations.
• Electromagnetic physics to model the electrical field distribution on a realistic 3D geometric model of the heart and torso.
• Inverse problem solving for smart chest belt.
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note 14
Multimaterial
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Composites Multi
Material
Advanced Materials
Noble Aluminum Steel
Multimaterial Product Design
15
• From “ All steel” , “All Aluminum ” All Composites” To Multimaterial
• Leverage the best of material for product performance.
• Challenges
• Fabrication
• Multiphysics
• Multifunctional
High COST Low
Hig
h
W
EIG
HT
Lo
w
Performance: High
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Design of Materials
Structural Elastic constants
Super structural
Thermal Thermal conductivity
Superinsulation
Electromagnetic permeability and permittivity
Metamaterials
Acoustic Sound transmission loss
Acoustic bandgaps
Transport Diffusion
Permeability Super flow
Design Extremel
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Design of Materials
Physics Governing Eqs* Constitute Eqs* Comments
Structural Static:, Navier’s equation, Hooke’s law
for stress strain relation. F, volume
forces, σ,stress tensor, e, strain tensor,
D, stiffness matrix
Thermal Heat Equation, Fourier’s law: ρ,density.
Cp, heat capacity, k, thermal
conductivity, Q,heat source.
Acoustic Helmholtz eq: ω, angular freq, ρ0, fluid
density, cs, speed of sound, q, source,
Dtl, transmission-loss coefficient, Wi,
incident and Wt is the transmitted sound
power.
Diffusion
Fick’s law, Diffusion Coeff. c is the
concentration, D is the diffusion
coefficient, and R is a reaction rate
Porous flow Darcy’s law, Permeability, : v, velocity, μ,
dynamic viscosity, K, permeability and P,
Pressure. P
xvK
* Equations from COMSOL documentation
c
NDeff
ave
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Metamaterial Simulation Results
18
Acoustic Super lens
Ultrasonic Meta Surfaces
Composite cloaks
Electrostatic resonance
Negative refraction
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note 19
Multiscale
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiscale Modeling
• Multiscale model is a mathematical model formed by combining partial model at different length and time scales.
• Away from predicting known properties towards new materials with novel properties.
• Products engineered from Atomic scale
Multi scale modeling Framework
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiscale: damage mechanism
21
Structure
Part
Laminate
Fiber
Matrix
Molecular
ATOMIC
0.3345 nm
0.142 nm
0.669 nm
c
ba
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note 22
Multi example
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Nano Foam
23
Engineers Quest is to develop materials with higher properties at lower weight
Simulation based material design for superior properties
• Super specific stiffness
• Super insulation
Nano
Micro
Macro
After US 7838108
Vf
No
rmal
ized
Pro
per
ty
Air Material 2
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiscale Modeling Super Structural
24
• Engineer the pore size for superior properties
• Example: Tooth enamel: Bio polymer+ mineral fillers
• Defect insensitive pore size
• Nano to micro to macro properties
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiscale Modeling Super Insulation
25
• Nanogel/ Aerogel : Thermal conductivity lower than still air to about 0.002 W/mK
• Nanoscale Knudsen effect, Phonon scattering
• Conduction, convection and Radiation = k
• U value for Fenestration product performance
• Building Thermal Simulation for annual Energy and Cost Saving
(From:http://www.ameriluxinternational.com/html/architectData/nanogel/documents/nanogelData.pdf)
2 pm
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note
Multiphysics Modelling C
AD
Structural Elastic constants
Super structural
Thermal Thermal conductivity
Superinsulation
Electromagnetic permeability and permittivity
Metamaterials
Acoustic Sound transmission loss
Acoustic bandgaps
Transport Diffusion
Permeability Super flow
CA
M
CAE
3D
PR
INTIN
G
ATOA Scientific Technologies Multiphysics CAE for Innovation TM |www.atoa.com | ICCMEH- 2014 Key Note 27
Thank You!
Visit: www.atoa.com
Mail: Raj@atoastech.com
Connect: http://in.linkedin.com/in/ctraj
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