Automotive NVH
Services: Automotive NVH
- Vehicle Interior Noise and Vibration Refinement
- NVH Benchmarking, DVP Development, Troubleshooting
- Pass-by Noise Evaluation as per ECE R51, R41, IS 3028
- Pass-by Noise Source Identification and Reduction
- Transmission and Axle Whine Reduction
- Sound Quality Evaluation and Improvement
- AVAS Development for Electric Vehicles
- Sound Signature Characterization by Head and Torso Simulator (HATS)
- Complete vehicle, sub-system and component level Transfer Path Analysis (TPA)
- Jury Evaluation for objective to subjective correlation
- Capability to address mid to high frequency NVH air borne sources using Hybrid and Pure SEA approach
- Vehicle Interior Simulation with acoustic trim optimization
Powertrain NVH
- Leader in powertrain NVH development with 20+ years’ experience with engines ranging from 5 kW to 400 kW
- Engine calibration optimization
- Acoustic camera and sound intensity mapping
- Torsional vibration analysis
- Intake and Exhaust Design
Sound Package Development
- NABL Accredited facility
- Sound absorption testing and benchmarking of actual parts/components using Alpha Cabin.
- Sound Absorption Coefficient and Sound Transmission Loss of automotive as per ISO 354 / ASTM 423 / ISO 10140-2 / ASTM E 90 using reverberation chambers.
- Sound absorption coefficient as per ISO 10534 / ASTM 1050 / OEM’s using impedance tubes.
- BIOT’s parameter evaluation using specialised test rigs such as flow resistivity, porosity, mechanical analyser as per ASTM C 522.
- Acoustic performance evaluation of body cavity fillers and grommets as per SAE J2846.
Modal Analysis
- Expertise to suggest improvement for structural and interior cavity optimization
- Rigid Body Mode Evaluation
- Non-contact modal analysis, operational modal and deflection shapes analysis
- Global Torsional Stiffness for Comfort Statics Evaluation of BIW
- Rigid Body properties, Centre of Gravity and Moment of Inertia assessment for optimized vibration performance of engine at low frequencies
- Dynamic stiffness optimisation for BIW structures, Intake/exhaust hangers, tyres, etc.
Tire Noise
- Tyre test rig with advanced capabilities to evaluate sound power level, close proximity and cavity noise evaluations for all passenger car tyre applications
- Tyre Cavity Noise Evaluation and Acoustic Material Characterization to reduce Cavity Resonance
