|Table of Contents|

Decaying characteristics of rotating rate of projectile with quasi-parabola nose borderline

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2016年05期
Page:
527-
Research Field:
Publishing date:

Info

Title:
Decaying characteristics of rotating rate of projectile with quasi-parabola nose borderline
Author(s):
Liu Xuan1Wen Quan1Wang Yushi1Zhang Zhibiao1Tang Huashan2
1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Hunan Jianhua Precision Apparatus Co Ltd,Yongzhou 425024,China
Keywords:
projectiles rotating rate decaying quasi-parabola nose borderlines numerical calculation
PACS:
TJ43
DOI:
10.14177/j.cnki.32-1397n.2016.40.05.004
Abstract:
Using the aerodynamics theory,the mathematical model of the exterior ballistics decaying characteristic of rotating rate is set up for the projectile with the quasi-parabola nose borderline,and some examples are numerically solved by the Matlab.The credibility is veryfied by the coefficient of polar damping moment got from the Fluent.The value of the rotating rate of the projectile with the quasi-parabola nose borderline calculated by the theoretical model is close to the calculation results of the J Les Kim correction formula and the index formula,and the maximum relative error is less than 18%.The results can be used as a reference to the design of the fuze centrifugal self-destroying performance and the armor penetration warhead spin-resistant performance.

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Last Update: 2016-10-30