Aerodynamic Characteristics Analysis and Ballistic Simulationof Morphing Guided Projectile

JIA Ang;WANG Xugang;LI Guangcai

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    Published By: Journal Of Ballistics

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Journal Of Ballistics ›› 2022, Vol. 34 ›› Issue (04) : 74-82. DOI: 10.12115/j.issn.1004-499X(2022)04-011

Aerodynamic Characteristics Analysis and Ballistic Simulationof Morphing Guided Projectile

  • JIA Ang1,WANG Xugang1,LI Guangcai2
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Abstract

In order to maintain a better aerodynamic shape of the guided projectile in different flight states,improve the flight efficiency and increase the range,a morphing guided projectile was designed. The aerodynamic parameters calculation,aerodynamic characteristics analysis,ballistic simulation were carried out. Firstly,the aerodynamic layout of the morphing guided projectile was determined according to the design parameters,and the specific shape parameters of the wing,canard and tail fin of projectile were determined through iterative optimization,the control modes and ballistic characteristics of the morphing guided projectile were described. Then the aerodynamic data of the morphing guided projectile was calculated by using engineering algorithms,the relationship between lift coefficient,drag coefficient,static stability and the change of the projectile wing shape was analyzed. Finally,a morphing scheme was developed for the designed morphing guided projectile based on the results of aerodynamic characteristics analysis. Hp-adaptive pseudo-spectrum method was used to optimize the ballistics of the morphing guided projectile and the fixed-profile guided projectile with the goal of maximum range. The results show that the designed morphing guided projectile meets the design parameters and has good aerodynamic characteristics and maneuverability,and the ballistic calculation results show that the range can be increased by 10% to 22.5% by introducing the morphing flight technology.

Key words

morphing guided projectile / ballistic optimization / ballistic calculation / variable-sweep wing

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JIA Ang1,WANG Xugang1,LI Guangcai2. Aerodynamic Characteristics Analysis and Ballistic Simulationof Morphing Guided Projectile. Journal Of Ballistics. 2022, 34(04): 74-82 https://doi.org/10.12115/j.issn.1004-499X(2022)04-011

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