Analysis of motion characteristics for dual-spin projectile

作者：Li Wei^*; Wang Zhi Gang

来源：Journal of Solid Rocket Technology, 2014, 37(2): 143-149.

DOI：10.7673/j.issn.1006-2793.2014.02.001

• Angular motions
• Characteristic roots
• Dual-spin configuration
• Guided projectiles
• Gyroscopic stability
• Inertia moment
• Motion characteristics
• Rigid projectile

On the basis of dual-spin rocket multi-body characteristics, influence of wind on the angular motion model was established in the quasi-body coordinates. Through linearization, the system dynamic stability factor and gyroscopic stability factor were obtained by differential equations characteristic roots. The dual-spin projectile gyroscopic stability factor was compared with the conventional rigid projectile results. The comparison can be viewed where the influence of the spin rates ration and the ratio of inertia moments on the ratio of the gyroscopic stability factors. Based on the research, it is concluded that the gyroscopic stability of dual-spin projectile can be enhanced by increasing the spin rates ration or inertia moments ratio.

• 出版日期2014
• 单位西北工业大学