基于聚类分析的舰船冲击环境区域划分方法

Zone division method of ship shock environment based on cluster analysis

    摘要
  • 摘要:
      目的  实船试验发现，舰船设备遭受的冲击输入不仅与设备自身特性有关，还与舰船安装位置有关，为使我国舰船设备冲击环境的划分与评价更具合理性，需对舰船冲击环境区域划分技术进行研究。
      方法  基于Ward聚类分析方法提出一种新的冲击环境区域划分方法，利用该方法对某型船的仿真及实验结果进行数据挖掘分析，并采用正态分布函数及Russell误差因子法，对运用该方法和BV标准规定的区域划分结果进行对比分析。
      结果  结果显示，与BV标准方法相比，采用新方法划分的冲击环境区域设计谱值离散度较小，且全频段误差数较小。
      结论  所提舰船冲击环境区域划分方法可有效处理冲击环境区域划分问题，对舰船设备抗冲击标准的制定具有重要参考意义。

     

    Abstract:
      Objectives  The real ship test finds out that the shock input to the ship equipment is related to the characteristics of equipment as well as the installation position of ship. In order to make the division and evaluation of the domestic ship equipment shock environment more reasonable, it is necessary to research the the ship shock environment zone division technology.
      Methods  A new method of division of shock environment zone was proposed based on the Ward cluster analysis method, which is used to analyze the simulation and experimental results of a certain type of ship, and the zone division methods by this method and the BV standard were analyzed and compared by normal distribution function and Russell error factor method.
      Results  The results show that, compared with the BV standard method, the new method has smaller dispersion and smaller error in the whole frequency band.
      Conclusions  The method proposed in this research has important reference significance for the establishment of anti-shock standards for ship equipment.

     

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