Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose

Deflectable nose control is a new trajectory correction method. In this paper, the aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose are investigated with respect to its flight conditions. Using the method of wind tunnel testing, the aerodynamic coeffi...

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Main Authors:	Yu-ming Ren, Shu-shan Wang, Jing-wei Li, Xun-cheng Guo, Yue-song Mei
Format:	Article
Language:	English
Published:	KeAi Communications Co., Ltd. 2019-10-01
Series:	Defence Technology
Online Access:	http://www.sciencedirect.com/science/article/pii/S2214914719300741

id	doaj-85449970ed5f417b95efe151f54ab338
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spelling	doaj-85449970ed5f417b95efe151f54ab3382021-05-02T08:58:16ZengKeAi Communications Co., Ltd.Defence Technology2214-91472019-10-01155758767Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable noseYu-ming Ren0Shu-shan Wang1Jing-wei Li2Xun-cheng Guo3Yue-song Mei4State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China; Corresponding author.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaBeijing Zhongheng Tianwei Force Defence Science and Technology Limited Company, Beijing 100081, ChinaDeflectable nose control is a new trajectory correction method. In this paper, the aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose are investigated with respect to its flight conditions. Using the method of wind tunnel testing, the aerodynamic coefficients of four kinds of mortar models were measured under the conditions of different angles of attack from −10° to 10° and Mach numbers from 0.3 to 0.9. Based on the aerodynamic coefficients, the trajectory ranges at different nose deflection angles and times were calculated. Furthermore, a trajectory optimization was performed by reducing the static margin. The results and discussions show that the nose deflection provided limited lift, while the pitching moment varied significantly. The mortar obtained the extended flight range and trajectory correction ability with nose deflection. Keywords: Nose deflection, Aerodynamic characteristics, Wind tunnel test, Trajectory simulationhttp://www.sciencedirect.com/science/article/pii/S2214914719300741
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Yu-ming Ren Shu-shan Wang Jing-wei Li Xun-cheng Guo Yue-song Mei
spellingShingle	Yu-ming Ren Shu-shan Wang Jing-wei Li Xun-cheng Guo Yue-song Mei Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose Defence Technology
author_facet	Yu-ming Ren Shu-shan Wang Jing-wei Li Xun-cheng Guo Yue-song Mei
author_sort	Yu-ming Ren
title	Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose
title_short	Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose
title_full	Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose
title_fullStr	Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose
title_full_unstemmed	Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose
title_sort	aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose
publisher	KeAi Communications Co., Ltd.
series	Defence Technology
issn	2214-9147
publishDate	2019-10-01
description	Deflectable nose control is a new trajectory correction method. In this paper, the aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose are investigated with respect to its flight conditions. Using the method of wind tunnel testing, the aerodynamic coefficients of four kinds of mortar models were measured under the conditions of different angles of attack from −10° to 10° and Mach numbers from 0.3 to 0.9. Based on the aerodynamic coefficients, the trajectory ranges at different nose deflection angles and times were calculated. Furthermore, a trajectory optimization was performed by reducing the static margin. The results and discussions show that the nose deflection provided limited lift, while the pitching moment varied significantly. The mortar obtained the extended flight range and trajectory correction ability with nose deflection. Keywords: Nose deflection, Aerodynamic characteristics, Wind tunnel test, Trajectory simulation
url	http://www.sciencedirect.com/science/article/pii/S2214914719300741
work_keys_str_mv	AT yumingren aerodynamicandtrajectorycharacteristicsofatypicalmortarprojectilewithadeflectablenose AT shushanwang aerodynamicandtrajectorycharacteristicsofatypicalmortarprojectilewithadeflectablenose AT jingweili aerodynamicandtrajectorycharacteristicsofatypicalmortarprojectilewithadeflectablenose AT xunchengguo aerodynamicandtrajectorycharacteristicsofatypicalmortarprojectilewithadeflectablenose AT yuesongmei aerodynamicandtrajectorycharacteristicsofatypicalmortarprojectilewithadeflectablenose
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Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose

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