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Page 1: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

Copyright © 2008 Altair Engineering, Inc. All rights reserved. Altair Proprietary and Confidential Information

Page 2: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Pradeep Shetty

[email protected]

05/06/2014

CFD Simulation of Automotive Radiator Axial Flow Fan

Page 3: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Country spirit Packed Sea Food

IFB AGRO

Fine Blanking

Tools Fine Blanking

Components

IFB INDUSTRIES

About IFB

IFB HOME APPLIANCES

Washing machine Refrigerator Dryer

Air conditions Micro-wave Dish washer

IFB AUTOMOTIVE

Seating Systems Door Systems

Latches Motors

Overall Turnover in Crore: Rs.3000 Crores

Page 4: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Impact Load Testing

Vibration cum Environmental Chamber

Slider Endurance Testing

Seat Belt Anchorage Testing

Dynamic Crash Test

Recliner Operational Durability Testing

Recliner Twisted Hinge Arm Testing

Rising Load Test Machine

Recliner Moment Durability Test

Recliner Static Strength Testing

TEST FACILTIES AT IFB AUTOMOTIVE

Page 5: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Window Regulator Endurance Testing

Door Slam Testing

Dust Spray Testing

Thermal Shock Testing

Endurance Test Machine – Door Latch

IFB AUTOMOTIVE TEST FACILTIES

Investment in Test Lab: 25 Crores

Page 6: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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IFB Test Facilities at IFB Goa(1)

Mechanical Testing Lab

Environmental Test Rooms Safety Test Lab EMI/EMC testing Lab

Page 7: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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IFB Test Facilities at IFB Goa(2)

Vibration Shaker Test Bevel Hitting

Side Clamping test Drop test Compressive Resist test

Semi Anechoic Chamber

Investment in Test Lab (Only Applinace): ~ Rs.20 Crores

Page 8: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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1. To predict the “Air Flow Rate” of Automotive Radiator Axial Flow

Fan through flow simulation.

2. The results are to be correlated with physical test results by

targeting the correlation level >90%.

Objective

Page 9: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Product Description

Fan Motor Shroud Assembly (FMSA)

FAN SHROUD

1. Fan Motor Shroud Assembly (FMSA) consists of electrically

driven Fan Motor, Shroud, Blade, Resistor and Wiring Harness.

2. Purpose of the FMSA is to provide adequate airflow across the

Heat Exchanger.

Page 10: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Test Specifications For Radiator FMSA

• For Performance the Automotive Radiator FMSA has to undergo

following test: • Static strength test

• Flow rate test

• Drop Test

• Vibration test

• Noise test

• Random Vibration test

• Inhibit Abuse Test for Key and Lock-Unlock Knob

• Fitment check

Page 11: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Governing Equations

• Conservation of mass:

• Conservation of momentum:

• Eddy viscosity based turbulence models compute the eddy

viscosity field from solution of additional transport equations for

turbulent scalars.

Page 12: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Computational Mesh for Fan and Shroud Assembly

Finite Element Mesh Model

Mesh: Unstructured Grid (Tetrahedral Volume Cells)

Number of Elements: ~5 million

Page 13: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Fan

MRF ZONE

Wall : U-normal = zero,

(No slip) U-tangential = U-wall

MRF Zone : Moving Reference Frame

Outflow : Atmospheric pressure

Inflow : Static Pressure inlet

Boundary Conditions

Page 14: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Velocity vector flow at cross section of test rig.

Streamlines plot

Flow Pattern for Axial Fan

Page 15: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Flow-Out

Physical Test Setup of IFB

Flow-In

Pressure Sensor

FMSA

Experimental Setup

Page 16: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Turbulence Model: Spalart-Allmaras (RANS model)

Correlation Study

Comparison between computational technique and

physical test (Normalized Data)

Page 17: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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The correlation between the computed data and measured data

has been done and results obtained are found to be close.

Reduced the experimental cost and time.

Conclusions

Page 18: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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IFB CAE Capabilities

FE Simulation

1. Linear Static, Quasi-Static &

Non-linear Static Analysis

2. Crashworthiness & Safety

3. Sequential Drop Analysis

4. Fatigue & Fracture Analysis

5. Buckling Analysis

Manufacturing Simulation

1. Mold Flow Analysis (Plastic)

2. Sheet Metal Stamping & Spring-

back Simulation

3. Fine Blanking Tool Simulation

CFD Simulation

1. Fluid Flow Simulation

2. Multiphase Flow Simulation

3. Thermal Analysis

4. Rotating (Domain)

Simulation

Optimization

1. Topology (Space &

Size)

2. Topography (Geometry)

3. Geometry & Size

MBD Simulation (Rigid &

Flexible)

1. Kinematic Simulation

2. Dynamic Simulation

NVH Simulation

1. Vibration Analysis (All Types)

2. Noise Analysis (All Types)

3. Harshness Analysis

CAE

CAPABILITIES

Page 19: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Fine Blank & Conventional Blank

Page 20: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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Optimization of Design

Sl. No.

1

2

3

4

5

6

7

8

9

10 Benchmarking

Optimization

Size reduction using software (FormingSuite, etc.)

Shape (Geometry) Change - if possible

Part Commonization

Part Count Reduction

Weight Reduction

Yield Improvement

IFB Automotive Pvt. Ltd

Option - 1 : Topology Optimization: Generates an optimized material

distribution for a set of loads and constraints within a given design space / size.

Option - 2 : Topography Optimization: Generates an optimized distribution of

shape based reinforcements.

Option - 3 : Shape & Size Optimization: General size and shape optimization

problems can be solved. Variables can be assigned to properties, which control

the thickness, area, moments of inertia, stiffness, and non-structural mass of

elements in the model.

Description

Alternative Raw Material

Change of Tolerance in RM Thickness - if possible

Reduction in Thickness of the Part

Page 21: Altair Proprietary and Confidential Information Copyright ...altairatc.com/india/casestudies/bangalore/cfd/ifb/cfd_automotive... · 4 Impact Load Testing Vibration cum Environmental

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IFB Automotive Private Limited Contact Information:

Mr. M.H.REDDY

Phone:+91 80 398423701

: +919343769874

E-mail: [email protected]

Mr. M.RAMALINGAM

Phone :+ 91 80 39842376

: +919343769920

E-mail: [email protected]