文献类型：期刊文献

英文题名：Analysis and research on the impact of bullet head eccentricity on air resistance

作者：Lin, Lizong[1]; Ju, Ran[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2020

卷号：1654

期号：1

外文期刊名：Journal of Physics: Conference Series

收录：EI(收录号：20204809537065)

语种：英文

外文关键词：Flight simulators

摘要：Through numerical simulation, the transverse resistance of the head eccentric bullet at 0.29 Ma, 0.58 Ma, 0.97 Ma and the eccentricity angle of 0° ~5° in the air was studied. When the bullet head deflects and flies at a certain speed, the tip of the bullet produces agitation to the air. This paper tries to find out the angle of minimum resistance by using the simulation software ANSYS when the eccentricity angle of the bullet head is between 0° and 5° degrees, and optimize the shape of the existing bullet. In this paper, three kinds of velocity are simulated. The simulation results show that the resistance of the head eccentric bullet in flight can become smaller. There is always a corresponding head eccentric angle at different speeds to minimize the flight resistance. As a result, the bullet can fly faster and farther. ? 2020 Institute of Physics Publishing. All rights reserved.