The invention relates to a marine energy-saving duct fin with a bionic trailing edge, comprising: an annular duct, the outer edge of which is fixed to the tail of a hull; the multiple fins are evenly distributed in the circumferential direction of the annular guide pipe, and the tail edge of each fin is provided with a bionic zigzag structure; the bionic zigzag structure is composed of tooth peaks and tooth valleys which are arranged periodically, and the height of each sawtooth and the distance between the tooth peaks are different and change randomly within the coverage range. The height difference between the adjacent tooth peaks and tooth valleys does not exceed 1/30 of the maximum chord length of the fin blades, and the distance between the adjacent tooth peaks or tooth valleys does not exceed 1/30 of the extension length of the fin blades. According to the marine energy-saving duct fin with the bionic trailing edge, the energy-saving effect can be effectively improved, and the vibration and noise reduction effect is enhanced.
本发明涉及一种船用带仿生尾缘的节能导管鳍,包括:环形导管,其外缘固定于船体尾部;多个鳍叶,沿环形导管周向均匀分布,每个鳍叶的尾缘设有仿生锯齿状结构;所述仿生锯齿状结构由周期性排列的齿峰和齿谷组成,每个锯齿的高度与齿峰距离均不相同,在覆盖范围内随机变化。相邻齿峰与齿谷的高度差不超过鳍叶最大弦长的1/30,相邻齿峰或齿谷的间距不超过鳍叶展长的1/30。该船用带仿生尾缘的节能导管鳍能够有效提升节能效果,并增强减振降噪效果。
Marine energy-saving duct fin with bionic trailing edge
一种船用带仿生尾缘的节能导管鳍
27.05.2025
Patent
Elektronische Ressource
Chinesisch
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