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Noise & Vibration Analysis Neilsoft has a specialist engineering team providing solutions for Noise & Vibration related problems for premier clients in the Automotive, Marine and Aerospace industry. The team uses robust simulation methods coupled with testing to address structural dynamic issues in mechanical, hydro-mechanical and rotary equipment type systems. The problem resolution is via structure and airborne vibration & noise (N&V) source detection, test-CAE based problem diagnosis, N&V path propagation study, virtual design improvements and test based verification. The N&V solution offerings include: Vibration control in vehicles and operating machineries • Frequency response analysis and signature studies such as: • Automotive passenger & commercial vehicles • Powertrain Idle shake response at Steering wheel, Seat track & I/P • Road induced shake • Driveline unbalance induced vibrations • Exhaust flow induced vibrations • Source identification using test-CAE based hybrid approach • Vibration path propagation study using FE methods • Vibration control methods including • Structural stiffness modifications • Surface damping & tuned absorbers • Vibration isolation • Order tracking and forced response analysis for rotary equipments

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Vibration control in vehicles and operating machineries • Bungee cord testing with impact hammer and EM shaker loading • Measurements via Accelerometer or Laser vibrometer • Dynamic/modal parameter estimation and correlation including • Natural frequencies • Damping factors • Mode shape vectors • Mode sensitivity studies & participation factors • LMS-VL and CADAX systems for testing & correlation • MSC NASTRAN for structural analysis Noise control & Acoustic simulations • Interior cabin acoustic characterization — Automotive, Ship and Airplane cabins • Structural radiated noise measurement and mitigation • Product noise testing using ARAI's semi-anechoic and reverberation chamber in accordance with ANSI, ISO and other standards • Noise prediction using CAE based simulation methods and correlation to testing, for example: • Automotive Powertrain Part/Wide open throttle noise & Transmission/Axle Gear noise • Hydrodynamic & on-board machinery induced structure-borne noise in ships / yachts • Environmental & industrial noise modeling • Vehicle pass by noise (noise generation by cars, CVs, rail systems) • Characterizing and mitigating Noise generated in Industrial plants, by Theme park equipments, within indoor factories etc • Noise Simulation Tools used: MSC NASTRAN, LMS-VL, MATLAB

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Computational Fluid Dynamics Neilsoft has an experienced engineering team providing Computational Fluid Dynamics (CFD) solutions to various Automotive, Marine, Oil & Gas, Power Generation and Aerospace customers with the help of robust simulation methods in conjunction with CFD test correlation. Neilsoft's CFD center of engineering excellence provides services and solutions in the following areas: Aerospace • Aircraft Aerodynamics • Rotor — Airframe Interaction • Helicopter Rotor —Airframe Interaction • Store Separation Analysis • Fuel Tank Sloshing • Aerospace Fuel Pump • Propulsion System • Nozzles • Compressor and Fans • Turbines • Missile Aerodynamics

Marine • Ship/Submarine Hydrodynamics • Propeller Blade Flow • Open Water Propeller Cavitation • I.C. Engine • Sails • Tank Sloshing • Seakeeping Maneuvering

Automotive • Aerodynamics • Brake Cooling • Engine Flow & Combustion • Fuel System • Underhood Thermal Management Climate & Comfort Control

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Contact us Company Headquarters Pune (India) Neilsoft Limited Pride Parmar Galaxy 8th Floor 10/10 + A Sadhu Vaswani chowk Pune 411001 Tel: +91 20 2605 3003 Fax: +91 20 2613 1755 Chicago, Illinois Neilsoft Inc. 800 West Fifth Ave, Suite 211 Naperville, IL 60563, USA Tel: +1 630 357 7430 Fax: +1 630 596 5304

Los Angeles, California 10811 Washington Blvd, Suite 300, Culver City, CA 90232, USA Tel: +1 310 437 6300 Fax: +1 419 821 7513

UK Neilsoft Limited 6-8 AW House, Stuart Street Luton, LU1 2SJ, UK Tel: +44 1582 455 559 Fax: +44 1582 486 699

Germany Neilsoft GmbH Auf der Krautweide 32 65812 Bad Soden, Germany Tel: +49 6196 93490-0 Fax: +49 6196 93490-49

Bangalore Neilsoft Limited 406, Embassy Centre 11, Crescent Road Kumara Park (E) Bangalore 560001 Tel: +91 80 2226 7786 Fax: +91 80 2237 4189

New Delhi Neilsoft Limited 1404, Chiranjiv Tower 43, Nehru Place New Delhi 110019 Tel: +91 11 4108 6157 Tel: +91 11 4108 6158 Fax: +9111 4108 6161

Appleton, Wisconsin Neilsoft Inc. 980 American Drive Neenah, WI 54956, USA Tel: +1 414 807 3624 Fax: +1 888 640 7015

Chennai Neilsoft Limited Room No.4, 5th Floor Crown Court, No.34, Cathedral Road, Gopalapuram Chennai 600086 Tel: +91 44 2811 4247 Fax: +91 44 2811 4247

Mumbai Neilsoft Limited B-206, Kanara Business Centre Off Ghatkopar - Andheri Link Road Next to Everest Gardens, Ghatkopar (E) Mumbai 400075 Tel: +91 22 6770 2737 Fax: +91 22 6770 2736

http://www.neilsoft.com


Neilsoft - Noise and Vibration Analysis services