Chinese Journal of Ship Research, Volume. 19, Issue 5, 254(2024)

Centrifugal pump degradation identification based on GA-GMDH algorithm

Guangxi SUN1, Hui CAO1,2, Ziwei ZHANG1, and Zhenhao MA1
Author Affiliations
  • 1Marine Engineering College, Dalian Maritime University, Dalian 116026, China
  • 2Dalian Maritime University Smart Ship Limited Company, Dalian 116026, China
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    Figures & Tables(17)
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    • Table 1. Degradation classification

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      Table 1. Degradation classification

      扬程/m功率/kw效率健康指标退化程度
      19.5~20.06.8~7.00.65~0.709.8以上正常
      18.0~19.56.0~6.80.60~0.659.0~9.8轻微退化(A)
      10~183.5~6.00.33~0.604~9中度退化(B)
      5~102.0~3.50.20~0.331~4重度退化(C)
      0~50~2.00~0.200~1故障(D)
    • Table 2. Experimental results of basic model

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      Table 2. Experimental results of basic model

      最大网络层数rmax最大神经元数$ {m'_{{\text{max}}}} $学习率v训练集eRMSE
      10200.50.038 813
      20200.50.028 996 1
      30200.50.032 643
      20100.50.028 638
      20300.50.032 87
      10200.70.031 638
      20200.70.016 241
      30200.70.019 75
      20100.70.018 223
      20300.70.020 01
    • Table 3. Parameter settings of GA-GMDH model

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      Table 3. Parameter settings of GA-GMDH model

      参数参数大小/范围
      遗传代数20
      种群规模20
      选择概率0.15
      交叉概率0.40
      变异概率0.10
      最大网络层数rmax寻优范围10~30
      最大神经元数$ {m'_{{\text{max}}}} $寻优范围10~30
      学习率v寻优范围0.1~0.9
    • Table 4. Comparison of monitored values via different models

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      Table 4. Comparison of monitored values via different models

      评判指标模型的监测结果
      LSSVMSVMGMDHGA-GMDH
      eRMSE0.074 5850.2270.032 0740.021 267
      eMAE0.059 7770.175 380.029 0450.018 681
      eMAPE2.072 3%7.690 5%0.130 63%0.017 823%
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    Guangxi SUN, Hui CAO, Ziwei ZHANG, Zhenhao MA. Centrifugal pump degradation identification based on GA-GMDH algorithm[J]. Chinese Journal of Ship Research, 2024, 19(5): 254

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    Paper Information

    Category: Marine Machinery, Electrical Equipment and Automation

    Received: Aug. 15, 2023

    Accepted: --

    Published Online: Mar. 14, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.03513

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