Modeling and Stability Analysis for Dual-Spinning Projectiles with Canards  

作　　者：管军 李新华 易文俊 常思江 

机构地区：[1]National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,China [2]The Northwest Industrial Group Company,Ltd.,Xi'an 710043,China [3]School of Power and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

出　　处：《Journal of Donghua University(English Edition)》2017年第5期670-676,共7页东华大学学报（英文版）

基　　金：National Natural Science Foundations of China(Nos.11472136,11402117)

摘　　要：To develop the guided spin-stabilized projectiles with high hit precision,a class of dual-spinning stabilized projectile equipped with canards in atmospheric is studied.The 7 degrees of freedom(DOF) nonlinear equations are written in a non-rolling body frame.The work reported here focuses on the ballistic property analysis including the spin rates,incidence angle,ballistic drift and lateral velocity.The dual-spinning projectiles are fundamentally less stable than conventional spin-stabilized projectiles.Hence,the gyroscopic stability is also studied in this paper.Theoretical models are given in this work,and the results of numerical analysis are discussed.To develop the guided spin-stabilized projectiles with high hit precision,a class of dual-spinning stabilized projectile equipped with canards in atmospheric is studied.The 7 degrees of freedom（DOF） nonlinear equations are written in a non-rolling body frame.The work reported here focuses on the ballistic property analysis including the spin rates,incidence angle,ballistic drift and lateral velocity.The dual-spinning projectiles are fundamentally less stable than conventional spin-stabilized projectiles.Hence,the gyroscopic stability is also studied in this paper.Theoretical models are given in this work,and the results of numerical analysis are discussed.

关 键 词：dual-spinning projectiles 7 degrees of freedom(DOF) nonlinear modeling stability analysis 

分 类 号：TJ413.6[兵器科学与技术—火炮、自动武器与弹药工程]