1) underwater anechoic coating
水声吸声覆盖层
1.
In this thesis, the acoustic characteristics of underwater anechoic coating are studied and analyzed by the OOFEM—Object-Oriented Finite Element Method.
本文主要用面向对象有限元方法(Object-Oriented Finite ElementProgramming——OOFEM)研究了水声吸声覆盖层的声学特性。
2) Anechoic coating
吸声覆盖层
1.
A review of underwater anechoic coating structure and absorption theories
水下吸声覆盖层结构及吸声机理研究进展
2.
A unit cell of anechoic coating containing varying sectional cylindrical cavity is approximated as the structure of layered cylindrical tubes.
将包含变截面圆柱形空腔周期性排列的吸声覆盖层的一个单元进行分段近似成多层圆柱管结构,并应用子域分割法在分段的接合界面处满足平均轴向位移和平均轴向应力连续,给出了变截面圆柱形空腔吸声覆盖层吸声系数的二维近似解。
3) absorbing sound overlay
吸声覆层
4) acoustic layer
声学覆盖层
1.
In order to improve submarine s hiding function,noise elimination tile is covered on exterior surface with the non-pressure shell;Deadening and decoupling tile is laid on exterior surface of the pressure shell;And damping layer is covered on inner surface with pressure shell(these three structures introduced above are all called multiple acoustic layer).
为提高潜艇的隐身性能,通常在潜艇非耐压壳板外表面敷设消声瓦,在耐压壳体的外表面敷设隔声去耦瓦,在耐压壳体内表面敷设"阻尼层"(以上三种结构统称为多种声学覆盖层);由于声学覆盖层含有空腔的特殊结构形式,该空腔结构形式在受到爆炸冲击波时,腔体将产生变形并吸收能量,这将严重影响潜艇的抗冲击性能。
5) anechoic coatings
消声覆盖层
1.
Experimental study on acoustic characteristics of multiplayer anechoic coatings with different interfaces;
不同界面形状分层消声覆盖层声特性的实验研究
6) anechoic tiles
外场声学覆盖层
1.
Mode expanding method is used to get the sound radiation power of the model,in which the coupling of the shells and the coating layers is taken into account,and as well the reaction of the anechoic tiles to the outer shell.
数值计算了隔声阻尼层和外场声学覆盖层层参数,实肋板参数和壳体阻尼对模型辐射声功率的影响。
补充资料：三层阁上置音声
【诗文】：
绮筵移暮景，紫阁引宵烟。隔栋歌尘合，分阶舞影连。
声流三处管，响乱一重弦。不似秦楼上，吹箫空学仙。
【注释】：
【出处】：
全唐诗：卷1_60
绮筵移暮景，紫阁引宵烟。隔栋歌尘合，分阶舞影连。
声流三处管，响乱一重弦。不似秦楼上，吹箫空学仙。
【注释】：
【出处】：
全唐诗：卷1_60
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条