Mahindra & Mahindra—Deputy Manager - Vehicle Attributes

Job description

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. Our commitment to Diversity, Equity, and Inclusion