SLIDE 1
1
2
Outline
- Structure of Centre of Excellence in Computational
Mechanics
- Centre of Excellence Researchers
- Vision, Mission and Goals of Centre of Excellence
- Research activities carried out
- Research Areas of Interests to be Explored
Centre of Excellence for Computational Mechanics Ramaiah Group 1 - - PowerPoint PPT Presentation
Centre of Excellence for Computational Mechanics Ramaiah Group 1 - - PowerPoint PPT Presentation
Centre of Excellence for Computational Mechanics Ramaiah Group 1 Outline Structure of Centre of Excellence in Computational Mechanics Centre of Excellence Researchers Vision, Mission and Goals of Centre of Excellence Research
SLIDE 2
SLIDE 3
3 Structural Dynamics and Earthquake Engineering
- Modal, Harmonic, Shock and Random
vibration analysis
- Earthquake Geotechnical Engineering
Computational Fluid Dynamics
- Low Reynolds number flows
- External flows
- Internal flows
- Fluid-structure interaction
- Multi-Disciplinary Analysis and
Optimisation
Computational Structural Mechanics
- Structural Analysis and Optimisation
- Composites
- Damage Tolerant Design
Structure of Centre of Excellence in Computational Mechanics
Computational Mechanics
SLIDE 4
4
CoE Researchers
- Dr. Rahul M.
Cadambi Associate Professor, Dept. of Mechanical and Manufacturing Engg, RUAS B.E.,
- M. Tech, Ph. D.
Composites Damage Tolerant Design and Polymer Nanocomposites
- Prof. H . K.
Narahari Professor, Dept. of Aerospace Engg, RUAS B.Sc., D.M.I.T [Aero], M.E., Ph.D. Aircraft Design, Aerodynamic Shape Optimization and MDO
- Dr. M.
Sivapragasam Associate Professor, Dept. of Aerospace Engg, RUAS M.Sc. (Engg),
- Ph. D.
Low Reynolds Number Aerodynamics, Aerodynamic Shape Optimization
- Dr. Anitha
Kumari Associate Professor, Dept. of Civil Engg, RUAS B.Tech, M.S. (Res), Ph. D. Discrete Element Modelling, Soil Liquefaction
SLIDE 5
5
CoE Researchers (Continued)
- Prof. Dinesh P.
Professor, Dept. of Mechanical Engg, RIT B.E., M.E., Ph.D. Finite Element Method and Fracture Mechanics
- Dr. Dinesh P. A.
Associate Professor, Dept. of Mathematics, RIT
- M. Sc., M. Sc.
(IT), M. Phil.,
- Ph. D.
Heat and Mass Transfer, Fluid Flows, Computational Fluid Dynamics, Bio – Mechanics, Statistical Analysis and Modeling
- Mr. Basavana
Gowda G. M. Assistant Professor, Dept. of Civil Engg, RIT B.E, M. Tech., (Ph.D.) Earthquake Engineering, Soil Dynamics, Structural Dynamics
- Mr. Parikshith N.
Technical Manager, Technocentre, RUAS B.E., M.Sc. (Engg) CFD, FSI, Heat Transfer and Composite Structure Simulation
SLIDE 6
6
CoE Researchers (Continued)
- Dr. B. Ramaswamy
Karthikeyan Associate Professor,
- Dept. of Electronics
and Communication Engg, RUAS
- B. E., M.Sc.
(Engg.), Ph. D. Computational Electro- Magnetics, DSP Algorithms, Communication Engineering
- Mr. Varun D.
Assistant Professor,
- Dept. of Electronics
and Communication Engg, RUAS
- B. E., M.Sc.
(Engg.) Computational Electro- Magnetics, Modelling of RF Front-End and Communication Engineering
- Mr. Nagaraju T. R.
Project Engineer, Technocentre, RUAS B.E., M. Tech Structural, Implicit and Explicit Dynamic Simulations
- Mr. Siddarth Akki
Project Engineer, Technocentre, RUAS
- B. E., M. Tech
CFD, Heat Transfer and Structural Simulation
- Mr. Sheel Kumar
Srivastava Valdel Advanced Technologies Ltd., Bengaluru B.Tech., M. Tech. FEA, Structural Analysis of Composites and Metals
SLIDE 7
7
Vision and Mission of CoE
Vision
- To build a pro-active multi-disciplinary computational mechanics
research group involving academicians, researchers and students to solve contemporary research problems of interest to academia and industry
Mission
- To apply computational mechanics framework to solve contemporary
research problems in structural mechanics and fluid mechanics
SLIDE 8
8
Envisaged Goals of CoE
- To
teach and explore
- utreach
in the field
- f
Computational Fluid Dynamics and Computational Structural Mechanics
- To establish synergy between academia and industry for
pursuing high end applied research
- To transfer technologies developed for commercialization
and entrepreneurship
SLIDE 9
9
Composites – Structures, Damage Tolerant Design
SLIDE 10
10
Failure of Composites – Curing Defects in T Joints
Modelling Approach Pull-Out Results Parametric Studies for Lay-up Optimisation
SLIDE 11
11
Microstructural Damage of Single Fibre Composites – Longitudinal Loading
Modelling Approach A B C Simulation Results
Experimental Results1
1 Mat. Sci. Eng. A, 2008
Simulation Results
Comparison of Microstructural Damage of Experimental and Simulation Observation
SLIDE 12
12
Microstructural Damage of Single Fibre Composites – Transverse Shear Loading
Modelling Approach Simulation Results Simulation of Microstructural Damage A B C D E
SLIDE 13
13
Machining damage – MD-CFRP Conventional Drilling
SLIDE 14
14
Machining damage – MD-CFRP Conventional Drilling
Delamination study at Drill entry Experiment and Simulation Composites Drilling Process Parameters (a) Experiment and (b) Simulation (a) (b)
SLIDE 15
15 Modal Shock Vibration Vibration Fatigue Buckling and Implosion Impact
Structural Analysis
SLIDE 16
16 Double Display Unit Receiver Cabinet Single Display Unit Three Axis Tracker Mount APD P07 Unit Chiller Unit
Structural Analysis of Electronic Consoles
SLIDE 17
17 17
Replacement of Metallic Battery Panel to Composite
SLIDE 18
18
Finite Difference Modelling (Liquefaction Analysis)
SLIDE 19
19
CFD Analysis
SLIDE 20
20
Iteration ( Cl / Cd )max
10 20 30 40 50 60 3.6 3.7 3.8 3.9 4
V-5 V-15 V-25 V-35 V-50
x/c y/c
1 0.78 0.56 0.34 0.12
- 0.1
- 0.32
- 0.54
- 0.76
- 0.98
- 1.2
1.5 1 0.1 0.2 0.5
- 0.2
- 0.1
Optimization at Ultra-Low Reynolds Numbers
SLIDE 21
21 Re = 50,000 α = 1˚, Cl = -0.0299
Aerodynamics of Low Reynolds Number Flows
SLIDE 22
22
(deg) CL
1 2 3 4 5 6 7 8 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24
Re = 50,000 Re = 100,000 Re = 150,000
(deg) CD
1 2 3 4 5 6 7 8 0.02 0.025 0.03 0.035 0.04 0.045 0.05
Re = 50,000 Re = 100,000 Re = 150,000
Propeller Slipstream Effects on MAV Wing
SLIDE 23
23 Rao et al., SAROD 2018
Wing Optimization for Transonic Business Jet
SLIDE 24
24
Supersonic Retropropulsion
SLIDE 25
25 Internal Aerodynamics External Aerodynamics Engine Cooling BLDC Generator Electromagnetic and Thermal Analysis
CFD Analysis
SLIDE 26
26 C Band Unit K Band Unit CNT-DIO Cards TRMM Unit
Thermal/Heat Transfer Analysis of Electronic Console
SLIDE 27
27
Characteristics of Shock Vector Controlled Fluid Thrust Vectoring System for Jet Engine
Shock controlled fluidic thrust vectoring at -with
- ut and with secondary fluidic injection
Sponsoring Agency: Aeronautics Research & Development Board (AR&DB)
SLIDE 28
28
Prediction of Bird-hit Damage on Fan Blades in an Aircraft Engine
FE model of fan blade with disc and bird
Stress distribution in blade at without and with pre-stress condition
SLIDE 29
29
Cooling Concepts Related to Gas Turbine Blades
Geometry of a turbine blade showing all cooling methods Comparison between present computation and published literature of thermal contours at different planes
Sponsoring Agency: Gas Turbine Research Establishment (GTRE), Bangalore under GATET
SLIDE 30
30 30
Discrete Element Modelling (DEM)
SLIDE 31
31
- 60
- 40
- 20
20 40 60 2 4 6 8 10 12 14 Deviatoric stress (kPa) No of cycles
Confining pressure = 100kPa Frequency = 1Hz Amplitude of strain rate = 0.006
- 60
- 40
- 20
20 40 60
- 5
- 4
- 3
- 2
- 1
Deviatoric stress (kPa) Axial strain (%)
Confining pressure = 100kPa Frequency = 1Hz Amplitude of strain rate = 0.006
0.0 0.2 0.4 0.6 0.8 1.0 2 4 6 8 10 12 Pore pressure ratio No of cycles
Confining pressure = 100kPa Frequency = 1Hz Amplitude of strain rate = 0.006
- 1
- 0.5
- 1
- 0.8
- 0.6
- 0.4
- 0.2
- 1
- 0.8
- 0.6
- 0.4
- 0.2
- 1
- 0.5
- 1
- 0.5
- 1
- 0.8
- 0.6
- 0.4
- 0.2
- 1
- 0.8
- 0.6
- 0.4
- 0.2
- 1
- 0.5
- 1
- 0.5
- 1
- 0.5
- 1
- 0.5
- 1
- 0.5
- 1
- 0.5
- 1
- 0.5
- 1
- 0.5
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
- 0.1
- 0.05
Normal contact force histograms Spherical harmonic distribution of normal contact force Spherical harmonic distribution of tangential contact force
Discrete Element Modelling
Liquefaction behaviour
Isotropic Compression Extension Near to liquefaction
SLIDE 32
32
Profile at the end of second failure due to landslide
Landslide: Slope Stability Underground Tunnels Rice Polishing Machine
SLIDE 33
33 33
Computational Electro-Magnetics (CEM)
SLIDE 34
34
~48 mm ~80 mm Vivaldi Array Vivaldi Array Beamsteering
Vivaldi Array
SLIDE 35
35
RAS ARRAY PLACEMENT ON WING
Vivaldi Array Placement Studies
SLIDE 36
36
Thermal Analysis of Three Phase Squirrel Cage Induction Motor for Computation of Minimum Temperature
Prediction of temperature under steady state condition for rated load Air flow vector plot Vector plot of Air flow over the fins Plane section of motor
SLIDE 37
37
Simulation Studies on Time Domain Analysis of Magnetic Flux in Three Phase Squirrel Cage Induction Motor
Magnetic Flux Density in Stator, Rotor and Air-gap
SLIDE 38
38
Computational Electromagnetic Simulations
SLIDE 39
39
Research Areas of Interests to be Explored Computational Structural Mechanics
- Continuous Damage Mechanics (CDM) of composite materials
- Composites microstructural modeling of delamination and intra-
laminar crack for failure analysis
- Multi-scale modeling and fracture simulation for energy absorption
in composites
Computational Fluid Dynamics
- Modelling of separated flows
- Modelling of hypersonic flows including ionization effects
- Modelling of chemically reacting flows
- Smoothed Particle Hydrodynamics (SPH) Simulations
SLIDE 40
40
Research Areas of Interests to be Explored (Continued) Coupled flow (CFD-DEM) Structural Dynamics
- Shake Table Studies on performance of structures and slopes
Computational Electro-Magnetics (CEM)
- High frequency CEM
- Avionics in hypersonic applications
- CEM for magneto-hydrodynamics