Chinese Journal of Ship Research, Volume. 20, Issue 4, 194(2025)

Shipboard transducer vibration isolation based on stiffness compensation and eddy current damping

Shibo FU1, Yecheng WANG1, Huayan PU1,2, Jun LUO1,3, and Min WANG1,2
Author Affiliations
  • 1School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
  • 2Engineering Research Center of Unmanned Intelligent Marine Equipment, Ministry of Education, Shanghai, 200444, China
  • 3College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400030, China
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    Figures & Tables(25)
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    • Table 1. List of values for the comprehensive impact factor \begin{document}$\beta $\end{document}

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      Table 1. List of values for the comprehensive impact factor \begin{document}$\beta $\end{document}

      $a/{b_2}$$\beta $取值
      1.00.061 15
      1.20.070 65
      1.40.075 45
      1.60.077 75
      1.80.078 62
      2.00.078 84
      $\infty $0.079 17
    • Table 2. Design parameters for diamond-shaped spring and diaphragm spring

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      Table 2. Design parameters for diamond-shaped spring and diaphragm spring

      参数数值
      菱形弹簧材料的弹性模量$ {E_1}/{\mathrm{MPa}} $1.1×105
      菱形弹簧的宽度$ {b_1}/{\mathrm{mm}} $16
      菱形弹簧的厚度${t_1}/{\mathrm{mm}}$1.4
      弯曲杆$ {A_4} $的杆长${l_4}/{\mathrm{mm}}$25
      弯曲杆$ {A_4} $与水平方向的夹角$\alpha $/(°)$ 45 $
      膜片弹簧材料的弹性模量${E_2}/{\mathrm{MPa}}$1.1×105
      膜片弹簧的厚度${t_2}/{\mathrm{mm}}$0.3
      膜片弹簧的有效长度$a/{\mathrm{mm}}$24
      膜片弹簧的宽度${b_2}/{\mathrm{mm}}$16
    • Table 3. Mesh parameters for stiffness simulation and COMSOL simulation

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      Table 3. Mesh parameters for stiffness simulation and COMSOL simulation

      仿真类型单元类型网格单元网格数
      菱形弹簧六面体自动划分最大:1 mm最小:0.2 mm237581
      菱形弹簧+膜片弹簧六面体自动划分最大:1 mm最小:0.2 mm351613
      COMSOL仿真三角形网格自动划分+局部加密(0.2 mm)2114
    • Table 4. Simulation parameters for eddy current damping

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      Table 4. Simulation parameters for eddy current damping

      参数数值参数数值
      永磁体半径/mm15铜管内径/mm17
      永磁体高度/mm60铜管外径/mm20
      残余磁感应强度/T1.5铜管高度/mm160
      磁体与铜管间隙/mm2铜管电导率/( S·m−1)6×107
    • Table 5. Simulation parameters for vibration isolation

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      Table 5. Simulation parameters for vibration isolation

      隔振器负载质量/kg系统刚度/(N·m−1系统阻尼/(N·s·m−1
      隔振器1($ k_1+c_1 $1333.0×106200
      隔振器2($ k_2+c_1 $2.0×106200
      隔振器3($ k_3+c_1 $1.2×106200
      隔振器4($ k_1+c_2 $3.0×106350
      隔振器5($ k_1+c_3 $3.0×106500
    • Table 6. Numerical results of vibration isolation simulationunder different parameters

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      Table 6. Numerical results of vibration isolation simulationunder different parameters

      仿真参数刚度调节
      共振频率/Hz隔振起始频率/Hz峰值传递率/dB隔振带宽改善/%
      k1+c123.8833.7799.88
      k2+c119.5227.6181.5618.24
      k3+c115.1221.3863.1836.69
      仿真参数阻尼调节
      共振频率/Hz隔振起始频率/Hz峰值传递率/dB峰值抑制改善/%
      k1+c123.8833.7799.88
      k1+c223.8833.7720.0179.96
      k1+c323.8833.7710.0589.94
    • Table 7. Test apparatus and software used in the experiment

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      Table 7. Test apparatus and software used in the experiment

      试验类型设备型号
      刚度补偿试验电子万能试验机WDW-5
      Smartest软件
      涡流阻尼生成试验动刚度仪MTS Landmark
      Station Manager 软件
      隔振机理试验加速度传感器PCB-356A17
      功率放大器GF-50
      激振器JZ-2
      频谱分析仪LMS SCADAS Mobile
    • Table 8. Specific numerical results of stiffness compensation test

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      Table 8. Specific numerical results of stiffness compensation test

      零部件垂向刚度/( N·mm−1)径向刚度/( N·mm−1)
      仿真结果试验结果仿真结果试验结果
      菱形弹簧761.6796.3121.1129.3
      菱形弹簧+膜片弹簧833.3843.9458.1465.8
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    Shibo FU, Yecheng WANG, Huayan PU, Jun LUO, Min WANG. Shipboard transducer vibration isolation based on stiffness compensation and eddy current damping[J]. Chinese Journal of Ship Research, 2025, 20(4): 194

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    Paper Information

    Category: Ship Structure and Fittings

    Received: Jan. 15, 2024

    Accepted: --

    Published Online: Sep. 11, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.03743

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