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含能材料  2015 

爆炸气泡帷幕对水中冲击波能量的衰减特性

DOI: 10.11943/j.issn.1006-9941.2015.10.018

Keywords: 爆炸气泡帷幕 小波包技术 能量衰减

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Abstract:

在传统气泡帷幕减震技术的基础上, 提出了爆炸气泡帷幕削能新理念, 并对爆炸气泡帷幕削能设想进行了实验研究, 发现在本实验条件下爆炸气泡帷幕能有效衰减冲击波峰值压力, 且衰减量高达60%, 对冲击波比冲量的衰减高达62.2%;采用小波包分解技术对爆炸气泡帷幕的削能效果进行评判, 发现爆炸气泡帷幕对各频段的冲击波能量衰减效果明显, 绝大部分频段的能量衰减都在50%以上; 爆炸气泡帷幕能够有效消除水下爆炸冲击波的高频部分, 爆炸冲击波通过爆炸气泡帷幕后只有低频成分, 且低频成分能量大大削弱

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