高阻尼性能的Cu-Al-Be形状记忆合金在舰艇螺旋桨上的应用

Application of the Cu Al Be Shape Memory Alloy with Exellent Damping Property to the Propeller of Ships

本文论述了高阻尼性能的Ｃｕ－Ａｌ－Ｂｅ形状记忆合金在舰艇螺旋桨上减振降噪的试验研究成果。用Ｃｕ－Ａｌ－Ｂｅ合金和原实艇螺旋桨材料ＺＱＡＬ１２－８－３－２分别制作参数相同的模型桨，在相同的５６种工况下对比试验表明：用Ｃｕ－Ａｌ－Ｂｅ形状记忆合金制作的螺旋桨能够完全抑制由共振产生的异常噪声唱音，有显著的减振降噪作用。该合金在舰艇螺旋桨上应用具有一定的可行性。

The application of Cu Al Be shape memory alloy with exellent damping capacity to the propeller of the ships is studied. Compared with conventional material (ZQAL 12 8 3 2),propeller model made of Cu Al Be alloy could efficiently restrain propeller singing and reduce noise level.It is possible that alloy will be used on the ships.