摘要
舰船模型水下爆炸试验是研究舰艇冲击响应及材料力学性能常用的试验方法。在海上条件下对水面舰船缩比模型试验进行试验研究,试验结果表明:用爆炸冲击波定位方法可较好地解决爆源与模型相对位置测量的难题;爆源在近水底爆炸时大部分气泡能被海底吸收,不能形成完成完整的二次气泡脉动,这种情况下二次脉动压力对模型的冲击作用较小;当模型处于弹性变形范围内时,同一测点三个方向形变大小处于同一数量级,迎爆面比背爆面对应位置变形要大。
Underwater explosion test of ship models is a conventional method to study ship＇ s shock response and mechanical properties of the materials. The explosion test of a surface ship scaled model was conducted and studied in the sea conditions. The test result indicates that with the explosive shock wave location method, the relative position between the explosive source and the ship model can be measured readily. When the explosive source is near the seabed, most of air bubbles due to the underwater explosion can be absorbed by the seabed, and the perfect second bubble impulse will not appear. In this case, pressure of the second bubble impulse only gives the model a small shock. When the model is in the elastic deformation range, the deformations at the same measuring point in all directions are in the same order. The deformation in the blasting face is larger than that at the corresponding position in the out-of-blasting face.
出处
《噪声与振动控制》
CSCD
2012年第6期26-29,共4页
Noise and Vibration Control
关键词
冲击
缩比模型
水下爆炸
冲击波
水下定位
shock
scaled model
underwater explosion
shock wave
underwater positioning
