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<p>To enhance both shock resistance and vibration isolation performance, this paper proposes a voice coil motor (VCM)-based active vibration isolator with axial-radial stiffness compensation. The compensator enables broadband isolation and impact resistance, while the skyhook-damping-inspired integral force feedback (IFF) control algorithm allows the lightweight isolator to simultaneously mitigate low-frequency vibrations and high-frequency shocks. Comprehensive experimental validation—including random excitation, frequency sweeps, bump tests, and impact tests—demonstrates effective vibration attenuation across 1–200&#xa0;Hz, with 7&#xa0;g bump shock tolerance and 40&#xa0;kg drop-weight impact resistance, achieving a remarkable shock transmissibility of 0.0015.</p>

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An active–passive vibration isolator for voice coil motor with axial-radial stiffness compensation

  • 期刊论文

  • 发表日期：

    2026年1月3日

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  • Huayan Pu,
  • Jiale Zhang,
  • Ran Quan,
  • Cai Xiao,
  • Jiheng Ding,
  • Yi Sun,
  • Min Wang

摘要

To enhance both shock resistance and vibration isolation performance, this paper proposes a voice coil motor (VCM)-based active vibration isolator with axial-radial stiffness compensation. The compensator enables broadband isolation and impact resistance, while the skyhook-damping-inspired integral force feedback (IFF) control algorithm allows the lightweight isolator to simultaneously mitigate low-frequency vibrations and high-frequency shocks. Comprehensive experimental validation—including random excitation, frequency sweeps, bump tests, and impact tests—demonstrates effective vibration attenuation across 1–200 Hz, with 7 g bump shock tolerance and 40 kg drop-weight impact resistance, achieving a remarkable shock transmissibility of 0.0015.