In the field of motor engineering, we specialize in the full-link systematic optimization of motor acoustic performance, with in-depth coverage of core sound source scenarios including motor electromagnetic noise (radial force-induced stator vibration noise, slot harmonic noise), mechanical noise (bearing friction noise, rotor unbalance vibration noise, gear meshing noise in reducer-integrated motors), and aerodynamic noise (cooling fan noise, air gap flow-induced noise). Through modular customized acoustic optimization schemes (e.g., zoned sound insulation design for motor end covers and surface density gradient matching of winding insulation acoustic materials for different power-grade motors), innovative application of high-performance vibration and noise reduction materials (including loss factor regulation of motor shell damping coatings, modal damping enhancement of lightweight alloy stator cores, and sound absorption performance optimization of porous composite fan blades), and structural-acoustic topological optimization design (relying on CAE simulation analysis technology to optimize the modal characteristics of motor shells, reduce structural resonance points, and improve the acoustic radiation efficiency of key components), we can achieve efficient attenuation of wide-frequency motor noise, significantly enhancing the acoustic quietness and operational stability of motors. Meanwhile, our solutions can help motor manufacturers meet high-end acoustic performance standards in niche segments such as new energy vehicle drive motors (e.g., high-speed whine suppression, electromagnetic noise control under variable frequency operation) and industrial high-precision servo motors (e.g., low-noise operation in precision equipment, acoustic compatibility matching with equipment systems), creating a full-scenario high-quality acoustic environment for motor applications from automotive powertrains to industrial automation equipment.