Job description
Responsibilities & Key Deliverables
Roles & Responsibilities
- Execute vehicle-level NVH & VD validation, subjective and Objective to ensure achievement of defined noise, vibration, and harshness and steering, brakes, handling and ride targets across all operating conditions.
- Should be able to conduct BSR Testing and score generation. Acoustic and vibration data along with subjective sound quality assessments to support vehicle refinement.
- Identify NVH & VD performance gaps early and provide data-driven inputs for design improvements (BIW, powertrain mounts, trims, sealing, etc.).
- Benchmarking of Vehicle Attributes viz. Power Train Noise, Road Noise, Wind Noise and Idle Boom Noise and Ride, Handling, Braking, Steering and Stability.
- Need to establish and maintain good inter-personal and inter-departmental relations and with the track management authorities.
Key Deliverables
- Instrumentation & Setup
- Install microphones, accelerometers, force transducers using B&K / LMS DAQ systems. Set up channels, calibration, and acquisition parameters
- Verify sensor placement for correct source-path capture
- Test Execution (Vehicle & Lab)
- Road noise and ride boom tests (proving ground / road load simulation)
- Powertrain NVH (order-based testing)
- Squeak & Rattle evaluations
- Execution of ride & handling and braking test plans as per program timelines
- Objective test data sets (accelerations, yaw rate, steering, etc.)
- Subjective evaluation reports (ride comfort, handling behaviour, steering feel)
- Execute tests in semi-anechoic chambers / chassis dynamometer / 3/4-post rigs
- Data Acquisition and Processing.
- Record time history and frequency data using:
- LMS Test.Lab / Siemens Simcenter
- Brüel & Kjær Pulse / LAN-XI systems
- Capture key signals: cabin noise (dB), acceleration, rpm, torque, etc.
- FFT, Spectrogram, Waterfall analysis
- Order tracking and run-up/coast-down analysis
- Transfer Path Analysis (TPA) basics
- VD performance gap identification reports with supporting evidence
- Benchmark comparison reports with competitor vehicles
Experience
3 to 6 years experience post Bachelor's
Industry Preferred
Qualifications
B.E or M.E. Mechanical/Automobile Engineering
General Requirements
- Thorough knowledge in Validation hands-on experience of NVH & VD attribute validation.
- Good Knowledge and operational skill in handling and using various instrumentation and data acquisition systems.
- Data Analysis Skills:
- Proficiency in NVH signal analysis techniques:
- FFT (Fast Fourier Transform)
- Order tracking
- Spectrogram / Waterfall plots
- Basic understanding of:
- Transfer Path Analysis (TPA)
- Operational Deflection Shapes (ODS)
- Ability to interpret:
- Frequency peaks, harmonics, excitation orders
- Capability to correlate test results with physical phenomena
- Suspension Characteristics tuning, Support model tuning MBS, Vehicle Dynamics models.