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This paper details the development and characterization of an innovative semi-active damper suitable for vehicle application. The damper features a novel approach with discrete orifices integrated into the piston, which are controlled by a servo motor. This setup includes a plate mounted on the piston that adjusts the orifice openings in real time, allowing for precise modulation of the damping force. The semi-active control mechanism enables the damper to optimize ride comfort and handling performance by adapting to varying driving conditions. To thoroughly evaluate the damper’s performance, a comprehensive characterization is conducted using a damper testing machine. As a result, the dissipated energy is increased by 24.38% for the case of fully closed at 2 Hz while comparing with fully open at 2 Hz.

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Development and Characterization of an Internal Variable Orifice Damper for Vehicular Application

  • 会议论文

  • 发表日期：

    2026年

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  • Ankit Kumar Verma,
  • Nitish Barnwal,
  • N. P. Puneet,
  • Hemantha Kumar,
  • Ranjeet Kumar Sahu,
  • Debashisha Jena

摘要

This paper details the development and characterization of an innovative semi-active damper suitable for vehicle application. The damper features a novel approach with discrete orifices integrated into the piston, which are controlled by a servo motor. This setup includes a plate mounted on the piston that adjusts the orifice openings in real time, allowing for precise modulation of the damping force. The semi-active control mechanism enables the damper to optimize ride comfort and handling performance by adapting to varying driving conditions. To thoroughly evaluate the damper’s performance, a comprehensive characterization is conducted using a damper testing machine. As a result, the dissipated energy is increased by 24.38% for the case of fully closed at 2 Hz while comparing with fully open at 2 Hz.