Modeling and Simulating Dynamics of Missiles with Deflectable Nose Control

• Published in: Chinese journal of aeronautics 2009-10, Vol.22 (5), p.474-479
• Main Authors: Yuan, Gao, Liangxian, Gu, Lei, Pan
• Format: Article
• Language: English
• Subjects: Channels; Computer simulation; deflectable nose; Deflection; Dynamic characteristics; kinetic model; Mathematical models; Missile bodies; Missiles; multi-rigid-body system dynamics; Nose; single-channel control; 仿真分析; 动力学模型; 动态特性; 单通道控制; 系统动力学
• ISSN: 1000-9361
• DOI: 10.1016/S1000-9361(08)60128-4

This article investigates the dynamic characteristics of deflectable nose missiles with rotary single-channel control. After introduction of effective attack and sideslip angles as well as quasi-body coordinates based on the spin characteristics of the missile＇s body, an integrated rigid kinetic model of missile with deflectable nose control is set up in the quasi-body coordinates considering the interaction between the missile＇s nose and body by using rootless multi-rigid-body system dynamics and is linearized. Then an analysis with simulation is conducted to investigate the coupling characteristics between the channels, the influences of nose deflection on the body and the dynamic characteristics of missile＇s body. The results indicate that various channels of missiles with deflectable nose control are coupled cross-linked; the nose deflection tends to make the body move in the opposite direction and, finally, evidences the correctness and reasonability of the kinetic model proposed by this article.