200 t级浮动冲击平台水下爆炸试验低频冲击响应数据分析

Low-frequency shock response data analysis of underwater explosion test of 200-ton class floating shock platform

    摘要
  • 摘要:
      目的   为了提高舰载设备抗冲击考核试验的标准性，
      方法   分析200 t级浮动冲击平台舷侧16 m工况的水下爆炸试验低频振子冲击响应数据，给出浮动冲击平台低频冲击响应特性。
      结果   结果表明，浮台横向和垂向的低频响应差异不明显，说明浮动冲击平台导流装置效果显著，至少在低频段可有效调节浮台垂向与横向的冲击强度比例；浮动冲击平台低频冲击谱的低频段和高频段存在拐点，低频拐点出现在约4 Hz处，高频拐点出现在约15 Hz处。
      结论   浮动冲击平台不同部位的低频冲击响应相差不大，说明低频响应以浮台整体的刚体运动为主。

     

    Abstract:
      Objectives  In order to improve the standards of the anti-shock assessment testing of shipboard equipment,
      Methods   the shock response data of the low-frequency vibration of a 200-ton floating shock platform is analyzed.
      Results   The difference between the horizontal and vertical low frequency response of the floating platform is not obvious, which indicates that the floating platform diversion device has a significant effect; at least in the low frequency range, it can effectively adjust the vertical and transverse shock strength ratio of the floating platform. There are inflection points in the low frequency band and high frequency band of the low frequency shock spectra of the floating platform; the low frequency inflection point appears at about 4 Hz while the high frequency inflection point appears at about 15 Hz.
      Conclusions   The results show that the low frequency shock response of different parts of the floating platform is the same, which means that the low frequency shock response is mainly the rigid body movement of the whole floating platform.

     

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