Open Access
 Issue JNWPU Volume 39, Number 6, December 2021 1259 - 1265 https://doi.org/10.1051/jnwpu/20213961259 21 March 2022

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

## 1 试验设备与模型

### 1.1 主要试验设备

 图1造波机
 图2压缩空气炮
 图3试验布置

 图4试验模型

## 2 结果与分析

### 2.1 平静水面工况

 图5平静水面入水流场与弹道
 图6轴向加速度-时间历程
 图7俯仰角-时间历程

### 2.2 入水相位影响

 图8相位定义示意图
 图9不同相位下轴向加速度对比
 图10不同相位下俯仰角对比

### 2.3 波高影响

3种波高工况对应的入水轴向加速度及入水过程俯仰角变化如图13~14所示，提取的特征参数见表2

 图110°相位入水流场
 图12波高对入水点影响示意图
 图13不同波高下轴向加速度对比
 图14不同波高下俯仰角对比

## 3 结论

1) 波浪环境改变了模型入水时刻相对水面的入水角度，入水点相位为90°或270°时，实际入水角与平静水面下一致，入水点相位为180°时，实际入水角增大，入水点相位为0°时，实际入水角减小，随着实际入水角度减小，轴向冲击载荷减小；

2) 入水点相对波面的相位对入水过载、入水弹道存在直接影响，入水点位于0°相位时虽有利于减小入水载荷，但可能产生模型跳弹现象；

3) 0°相位下波高越大，波浪对相对入水角的影响越大，进而导致对过载及弹道影响更大，但波高超过一定程度时，不会出现0°相位入水的情形。

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## All Figures

 图1造波机 In the text
 图2压缩空气炮 In the text
 图3试验布置 In the text
 图4试验模型 In the text
 图5平静水面入水流场与弹道 In the text
 图6轴向加速度-时间历程 In the text
 图7俯仰角-时间历程 In the text
 图8相位定义示意图 In the text
 图9不同相位下轴向加速度对比 In the text
 图10不同相位下俯仰角对比 In the text
 图110°相位入水流场 In the text
 图12波高对入水点影响示意图 In the text
 图13不同波高下轴向加速度对比 In the text
 图14不同波高下俯仰角对比 In the text

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