Movement Characteristics of a Dual-Spin Guided Projectile Subjected to a Lateral Impulse

Yang, Zhiwei; Wang, Liangming; Chen, Jianwei

doi:10.3390/aerospace8100309

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…Te diferential equations for the rocket projectile rotation around the center of mass [28][29][30] are as follows:…”

Section: Dynamic Modelling Of Rocket Projectile With Isolated Rotatin...mentioning

confidence: 99%

“…As the projectile is under the action of gravity, the height defection angles of the projectile velocity bend downward, which results in a changed attack angle. Equation (29) describes this change, and the results are shown in Figures 6 and 7, and the initial conditions are δ 10 � δ 20 � 0, v 0 � 280m/s, and θ a0 � 0.07πrad.…”

Section: Stability Of Projectile Caused By Gravitymentioning

confidence: 99%

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Research on Angular Motion Characteristics and Stability of Trajectory‐Corrected Rocket Projectile with Isolated Rotating Tail Rudder

Wang

Ding

Feng

et al. 2023

Mathematical Problems in Engineering

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A trajectory-corrected rocket projectile with an isolated rotating tail rudder provides a new concept for a low-cost trajectory correction and guidance due to its simplified guidance principle. To study the angular motion characteristics of a trajectory-corrected rocket projectile with an isolated rotating tail rudder under the action of a periodic control force, the angular motion differential equation described in the complex plane is derived based on the rigid body trajectory equation. Furthermore, the effects of the initial conditions, gravity, and an asymmetric tail on the flight stability of the projectile in an uncorrected trajectory state are studied. The critical rotational speed of the tail rudder, which makes the projectile unstable due to the Magnus moment, and the rotational speed of the tail rudder, which causes projectile resonance, are derived. The transient and steady-state solutions of the angular motion of the projectile under trajectory correction and the variation law of the velocity direction for the projectile centroid are obtained. Finally, an example is given to verify the conclusions of this study. This research has important guiding significance for trajectory analysis, guidance control, and guidance law designs for isolated rotating rudder trajectory-corrected rocket projectiles.

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“…Te diferential equations for the rocket projectile rotation around the center of mass [28][29][30] are as follows:…”

Section: Dynamic Modelling Of Rocket Projectile With Isolated Rotatin...mentioning

confidence: 99%

Section: Stability Of Projectile Caused By Gravitymentioning

confidence: 99%

Research on Angular Motion Characteristics and Stability of Trajectory‐Corrected Rocket Projectile with Isolated Rotating Tail Rudder

Wang

Ding

Feng

et al. 2023

Mathematical Problems in Engineering

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Guidance and Control of a Spinning 155mm Artillery Shell

Rehman

Asghar²,

Abid

et al. 2022

2022 17th International Conference on Emerging Technologies (ICET)

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Variable-structure trajectory correction control of small-caliber ammunition based on cascade fuzzy active disturbance rejection

Wang,

Ding,

2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this study, a low-cost two-dimensional (2D) trajectory correction mechanism is proposed to address the large trajectory deviation of small-caliber extended-range ammunitions. By controlling the projectile’s roll, a single-channel 2D trajectory correction function can be realized. Moreover, based on the ideal trajectory, a five-degree-of-freedom approximate rigid-body trajectory equation is proposed. A high-order system is transformed into two low-order cascading subsystems using fuzzy control and the self-disturbance rejection control theory, which reduces the parameter tuning complexity. The entire control process is divided into three stages which realizes the second-order variable structure control of non-affine nonlinear subsystems. A low-altitude atmospheric disturbance model is established, and as an example, numerical calculations are performed on the control process and projectile impact point dispersion of a 35 mm small-caliber rocket. The results verify the performance of the proposed trajectory correction under atmospheric disturbances. This study provides a control approach for coupled underactuated nonlinear systems and provides guidance for the design of a low-cost 2D trajectory correction controller for small-caliber ammunitions.

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Movement Characteristics of a Dual-Spin Guided Projectile Subjected to a Lateral Impulse

Cited by 4 publications

References 24 publications

Research on Angular Motion Characteristics and Stability of Trajectory‐Corrected Rocket Projectile with Isolated Rotating Tail Rudder

Research on Angular Motion Characteristics and Stability of Trajectory‐Corrected Rocket Projectile with Isolated Rotating Tail Rudder

Guidance and Control of a Spinning 155mm Artillery Shell

Variable-structure trajectory correction control of small-caliber ammunition based on cascade fuzzy active disturbance rejection

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