The Silence of EVs: How Rubber Dampers Eliminate "Phantom Noise"
Electric Vehicles (EVs) have eliminated the roar of the internal combustion engine, but this has created an unexpected side effect: subtle noises that were once masked by the engine—road noise, wind, and even wire harness rattling—are now annoyingly loud.
This is why Automotive NVH (Noise, Vibration, and Harshness) engineering is critical in the EV era. The solution lies in the viscoelastic properties of rubber.
Hysteresis is Key High-quality "automotive vibration damping rubber" acts as more than just a spring; it is an energy absorber. By adjusting fillers like carbon black in the rubber formula, we can alter the material's hysteresis loss. When vibration energy hits the rubber, it converts kinetic energy into trace amounts of heat, dissipating it rather than bouncing it back.
Frequency Tuning Different rubber durometers (hardness) correspond to different resonance frequencies. To solve "electric compressor vibration isolation" or "chassis suspension noise," engineers must precisely calculate the dynamic stiffness of the rubber.
Conclusion: Rubber isn't just a black elastomer; it is a chemically tuned filter. Fuqiang is dedicated to developing high-performance NVH components that help EVs achieve a truly silent driving experience.
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