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<p>The paper presents an original design solution for a semi-active torsional damper filled with granular material. The main working element of the damper is the so-called Vacuum Packed Particles—a loose granular material placed in a sealed space where partial vacuum is created (activating the jamming mechanism). Internal pressure changes allow for the real-time, controlled modification of the device’s dissipative properties. Experimental investigations of the damper filled with rubber grains are presented. A mathematical model was applied to describe the experimental data, enabling the capture of damage and fatigue phenomena occurring in the damper. Based on the identified mathematical model, numerical simulations for standard operational damper conditions were conducted.</p>

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Experimental research and modeling of soft rubber semi active Vacuum Packed Particles torsional damper

  • 期刊论文

  • 发表日期：

    2026年3月2日

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  • Robert Zalewski,
  • Pawel Chodkiewicz,
  • Mateusz Zurawski,
  • Dominik Rodak

摘要

The paper presents an original design solution for a semi-active torsional damper filled with granular material. The main working element of the damper is the so-called Vacuum Packed Particles—a loose granular material placed in a sealed space where partial vacuum is created (activating the jamming mechanism). Internal pressure changes allow for the real-time, controlled modification of the device’s dissipative properties. Experimental investigations of the damper filled with rubber grains are presented. A mathematical model was applied to describe the experimental data, enabling the capture of damage and fatigue phenomena occurring in the damper. Based on the identified mathematical model, numerical simulations for standard operational damper conditions were conducted.