Broadband vibration suppression device using acoustic black hole characteristics

Abstract

The present invention relates to a broadband vibration suppression device using acoustic black hole characteristics, the device comprising: a vibration damping body including a uniform portion havinga constant thickness and a tapered portion integrally connected to the uniform portion, the tapered portion extending from a connection point in such a manner as to gradually decrease in thickness from the uniform portion to a predetermined thickness; and a damping layer attached to the tapered portion of the vibration damping body. The vibration suppression device can effectively suppress vibration and reduce noise on a broadband, and is simple in design. 本发明涉及一种利用声学黑洞特征的宽频带振动抑制装置，包括：减振体，包括厚度不变的均匀部分和与该均匀部分一体相连的锥形部分，该锥形部分从相连处起以从该均匀部分的厚度逐渐减小至一预定厚度的方式延伸；以及阻尼层，附连至该减振体的锥形部分。本发明的振动抑制装置可以在宽频带上有效抑制振动、降噪，并且设计简单。