|
|||||
|
|
| 空腔尖劈吸声性能计算及其优化设计 | |
| 引用本文： | 姚熊亮,钱德进,厉艳才,郭艳红.空腔尖劈吸声性能计算及其优化设计[J].哈尔滨工程大学学报,2009,30(6). |
| 作者姓名： | 姚熊亮 钱德进 厉艳才 郭艳红 |
| 作者单位： | 1. 哈尔滨工程大学,船舶工程学院,黑龙江,哈尔滨,150001 2. 哈尔滨工程大学,船舶工程学院,黑龙江,哈尔滨,150001;海军装备研究院,舰船研究所,北京,100073 3. 哈尔滨工程大学,材料科学与化学工程学院,黑龙江,哈尔滨,150001 |
| 摘 要： | 研究含空腔尖劈吸声结构的吸声性能对声呐平台区减振降噪具有重要的工程应用价值,通过实验分别测试了尖劈不同温度下低频材料动力学参数及尖劈吸声系数.基于时温等效原理,由不同温度下测得的低频材料动力学参数值预测了某一温度下高频范围内的值.以变截面波导理论建立的吸声系数方程为依据,自编MATLAB计算程序,由预测得到的材料参数计算了尖劈的吸声系数,并与实验结果作了对比,表明计算值与测试值吻合较好.结合自编程序和MATLAB优化工具箱对尖劈吸声性能进行优化设计,分别对材料动力学参数和空腔结构进行优化,得到了材料动力学参数优化频响曲线和决定空腔变化趋势的参数的优化值.优化结果表明,尖劈吸声性能有了明显的提高. |
| 关 键 词： | 空腔尖劈 变截面波导 时温等效 吸声系数 优化设计 |
Research on the sound absorption performance of cavity wedges and optimization of their design |
|
| YAO Xiong-liang,QIAN De-jin,LI Yan-cai,GUO Yan-hong.Research on the sound absorption performance of cavity wedges and optimization of their design[J].Journal of Harbin Engineering University,2009,30(6). | |
| Authors: | YAO Xiong-liang QIAN De-jin LI Yan-cai GUO Yan-hong |
| Affiliation: | 1.College of Shipbuilding Engineering;Harbin Engineering University;Harbin 150001;China;2.Naval Academy of Armament;Beijing 100073;3.College of Materials Science and Chemical Engineering;China |
| Abstract: | The sound absorption performance of cavity wedges plays a very important role in vibration and noise reduction for sonar platforms.The low-frequency dynamic parameters and sound absorption coefficients of typical wedges at different temperatures were tested in experiments.The material's parameters were obtained for a broad range of temperatures by using the time-temperature equivalence rule.MATLAB was used and the calculated sound absorption coefficients were compared with experimented results.Based on soun... |
| Keywords: | cavity wedges non-uniform wave guide time-temperature equivalence sound absorption coefficient optimization design |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |