Analysis of Astern Moving Performance of Bionic Water-surface Vector Propeller

doi:10.3969/j.issn.1000-1093.2018.08.010

Abstract

Abstract: For the complex astern moving structure of amphibious platform and its performance study, a new mode of astern moving is presented based on the water-surface bionic vector propeller, and a new amphibious platform is designed. The straight astern moving of 0.7 m/s and the astern steering of small-radius of about 0.75 m are realized by rotating the propeller reversely. A fluid dynamics model of propeller is set up to analyze the influences of height, spoke length, rotational velocity and blade angle on three-dimensional output performance of astern moving with periodic output. So the study of the flow due to rotating of flat plates is further enriched. And the calculation model is validated by using the open water test system of vector propeller. The results show that the turning moment decreases with the increase in height of propeller axle; the down push force and drag force are linear with the spoke length, and the turning moment is quadratic functions to spoke length; and three-dimensional driving outputs increase with the increase in rotational velocity of propeller. Key

Key words: amphibiousplatform, vectorpropeller, reverserotation, performanceofasternmoving, openwatertest

CLC Number:

ZHANG Zhong-zhi, LYU Jian-gang, SONG Bin, LIU Jin-hua, ZHU Wen-jie. Analysis of Astern Moving Performance of Bionic Water-surface Vector Propeller[J]. Acta Armamentarii, 2018, 39(8): 1536-1547.

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第39卷
第8期2018 年8月兵工学报ACTA
ARMAMENTARIIVol.39No.8Aug.2018

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