文章摘要
宋君才.敷设某种吸声材料的声诱饵简化模型隔离度仿真计算[J].声学技术,2020,39(4):430~433
敷设某种吸声材料的声诱饵简化模型隔离度仿真计算
Simulated calculation of isolation degree for simplified acoustic decoy model laying a certain sound-absorbing material
投稿时间:2019-10-09  修订日期:2019-11-22
DOI:10.16300/j.cnki.1000-3630.2020.04.008
中文关键词: 声诱饵  隔离度  吸声材料
英文关键词: acoustic decoy model  isolation  sound-absorbing material
基金项目:
作者单位E-mail
宋君才 海军驻上海地区水声导航系统军事代表室, 上海 201108 1770184643@qq.com 
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中文摘要:
      随着水声电子对抗技术的不断发展,对于声诱饵系统边收边发技术的需求日益增强。实现边收边发技术的难点之一在于如何增大声诱饵系统发射端与接收端的隔离度。由于高分子吸声材料对声能的吸收作用,可以考虑采用在声诱饵接收端敷设吸声材料的方式,对声诱饵系统的隔离度进行改善。利用有限元计算软件对简化的声诱饵模型的隔离度进行数值仿真计算,分析声诱饵模型接收端敷设不同厚度的吸声材料时,对声诱饵系统隔离度的影响。计算结果表明,在声诱饵接收端敷设吸声材料时,可以增大声诱饵系统发射端与接收端的隔离度;当吸声材料达到一定厚度以后,对声诱饵系统隔离度的影响几乎不变。
英文摘要:
      With the continuous development of underwater acoustic electronic warfare technology, the demand for receiving-while-sending technology of acoustic decoy is increasing day by day. One of the difficulties in realizing this technology is how to increase the isolation between the transmitting end and the receiving end in the acoustic decoy. Due to the absorption of acoustic energy by polymer sound-absorbing material, the sound isolation in acoustic decoy can be improved by laying sound-absorbing material at the receiving end. The finite element software is used to simulate the isolation degree for the simplified acoustic decoy model. The effect of different thickness of sound-absorbing material on the isolation degree is calculated. The result shows that the isolation degree between the transmitting end and the receiving end can be improved by laying sound-absorbing material at the receiving end. And the effect on the isolation degree is almost unchanged when the sound-absorbing material reaches a certain thickness.
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