Swerving Orientation of Spin-Stabilized Projectile for Fixed-Cant Canard Control Input
Joint Authors
Liu, Xu-dong
Li, Dong-guang
Shen, Qiang
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-15
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Due to the large launch overload and high spin rate of spin-stabilized projectile, no attitude sensor is adopted in square crossing fixed-cant canard concept, which causes the lack of existing projectile linear theory for the close form solution of swerving motion.
This work focuses on swerving orientation prediction with the restricted conditions.
By importing the mathematical models of canard force and moment into the projectile angular motion equations, trim angle induced by canard control force is extracted as the analytical solution of angle of attack increment (AOAI).
On this basis, analytical orientations of trajectory angular rate increment and swerving increment are obtained via the frozen coefficient method.
A series of simulations under different conditions were implemented to validate the expressions in this effort.
Results state that increment orientation of swerving motion can be predicted with available trajectory parameters.
The analytical orientations indicate trim value of numerical orientations.
Deviations between analytical and numerical orientations relate to initial launch angles and control start time, both lower initial launch angle, and the start time which is closer to the end of flight decreases the deviation convergence time.
American Psychological Association (APA)
Liu, Xu-dong& Li, Dong-guang& Shen, Qiang. 2015. Swerving Orientation of Spin-Stabilized Projectile for Fixed-Cant Canard Control Input. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1073113
Modern Language Association (MLA)
Liu, Xu-dong…[et al.]. Swerving Orientation of Spin-Stabilized Projectile for Fixed-Cant Canard Control Input. Mathematical Problems in Engineering No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1073113
American Medical Association (AMA)
Liu, Xu-dong& Li, Dong-guang& Shen, Qiang. Swerving Orientation of Spin-Stabilized Projectile for Fixed-Cant Canard Control Input. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1073113
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073113