A new propeller alloy with high strength, high damping capacity and excellent corrosion resistance has been put to damping effect test.
本文介绍了一种新型的高强度、高阻尼、耐腐蚀性优良的螺旋桨专用合金在降噪效果方面的试验研究成果。
Based on the principle of sonic resonance, resonant frequency and damping capacity are used as two parameters to test the volume online quickly.
依据音频共振原理，利用共振频率和内耗两个音频参数的共同作用，快速在线检测弹体药室容积，并用此法与传统的“水称重”法进行理论和实验对比分析。
Based on the principle of sonic resonance, resonant frequency and damping capacity are used as two parameters to test the volume online quickly.
依据音频共振原理，利用共振频率和内耗两个音频参数的共同作用，快速在线检测弹体药室容积，并用此法与传统的“水称重”法进行理论和实验对比分析。
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