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NVH is not subjective. It is a measurable interaction of force vectors, structural modes, damping behaviour & frequency-domain response. At Galaxy Auto Works, every NVH case is a modal analysis problem, not a complaint. Using calibrated tri-axial accelerometers, microphone arrays & spectrum analyzers, we extract: 🔹 Amplitude–Frequency mapping (FFT) 🔹 Order tracking across RPM bands 🔹 Air-borne vs. structure-borne isolation 🔹 Transfer Path Analysis (TPA) 🔹 Phase correlation across subsystems 🔹 Resonance under transient & steady-state load In luxury cars, deviations present as: • Wheel imbalance → 1st-order excitation • Mount fatigue → shifted natural frequency • Drivetrain resonance → torsional coupling • Cabin boom → ¼-wave standing mode • Wind leakage → aero-acoustic turbulence • High-RPM spikes → harmonic multiples • Micro-vibrations → rotating assembly imbalance We don’t ask “Where is the noise?” We ask: 👉 Which subsystem is deviating from its designed modal behaviour? 👉 Which component is shifting structural frequency? 👉 Which path is transmitting unintended energy? Our readings — dB(A), m/s², Hz, phase angle — are benchmarked against expected NVH signatures for: ✔ Luxury sedans ✔ Performance SUVs ✔ Supercars with stiff monocoques ✔ EV/PHEV platforms with low masking noise ✔ V8/V10/V12 engines with strong harmonics Our workflow: 📌 Signal acquisition (accelerometer + microphone + CAN) 📌 Frequency-domain analysis (FFT, STFT, Cepstrum) 📌 Order tracking (engine-speed synchronous) 📌 Subsystem isolation (driveline / suspension / mounts / aero) 📌 Corrective optimization (balance, torque, alignment, sealing) Galaxy Precision = Data-driven verification × Modal reasoning × AI-assisted interpretation. Luxury cars don’t create “noises.” They present frequency anomalies. We decode them. 📍 Galaxy Auto Works – Luxury & Supercar Service Center Lower Parel, Mumbai (Opp. Trump Tower) 📞 98202 25000 | ☎️ 1800 267 2323 📧 [email protected] | [email protected] 💬 WhatsApp: +91 98202 25000 #GalaxyAutoWorks #NVHAnalysis #OrderTracking #ModalAnalysis #AutomotiveEngineering