推力作用下变质量柔性自旋飞行器稳定性分析

Translated title of the contribution: Stability Analysis of Variable-Mass Flexible Spinning Projectile under Thrust

Cheng Long Pan, Ji Li Rong, Tian Fu Xu, Da Lin Xiang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The stability of a variable-mass flexible spinning projectile under thrust is researched. The spinning projectile is simplified as a Timoshenko beam model, considering gyroscopic effect and shear effect, motion equations are derived based on the finite element method to analyze the effects of variable-mass, follower thrust and spinning speeds on the stability of the spinning projectile. Using the self-adaptive Newmark method, the transverse vibration response of the spinning projectile is solved. The results show that the variable-mass and thrust have influence on the natural frequency, precession frequency and critical speed. When the spinning speed is equal to the critical speed, the projectile occurs a transient resonance under the influence of the mass, and the peak time of the resonance response is slightly delayed compared with the coincidence time.

Translated title of the contributionStability Analysis of Variable-Mass Flexible Spinning Projectile under Thrust
Original languageChinese (Traditional)
Pages (from-to)199-205
Number of pages7
JournalYuhang Xuebao/Journal of Astronautics
Volume41
Issue number2
DOIs
Publication statusPublished - 28 Feb 2020

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Pan, C. L., Rong, J. L., Xu, T. F., & Xiang, D. L. (2020). 推力作用下变质量柔性自旋飞行器稳定性分析. Yuhang Xuebao/Journal of Astronautics, 41(2), 199-205. https://doi.org/10.3873/j.issn.1000-1328.2020.02.009