Analysis of Free Motion Characteristics for Dual-Spin Projectile

Zhi Gang Wang; Wei Li

doi:10.4028/www.scientific.net/AMM.427-429.69

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429Analysis of Free Motion Characteristics for...

Analysis of Free Motion Characteristics for Dual-Spin Projectile

Abstract:

On the basis of dual-spin projectile multi-body characteristics, the angular motion model is established in the quasi-body coordinates. Through linearization, the system dynamic stability factor and gyroscopic stability factor are obtained by differential equations characteristic roots. There is also informative to compare the dual-spin projectile gyroscopic stability factor to the conventional rigid projectile results. The comparison can be viewed where the influence of the spin rates ration γ_f/γ_a and the ratio of inertia moments C_f/C_a on the ratio S_g/S^y_g of the gyroscopic stability factors. Through the numerical example, the dual-spin projectile has a similar stability to that of a conventional rigid projectile, and the curves of the relationship between the ratio S_g/S^y_g of the gyroscopic stability factors with the ratio of spin rates γ_f/γ_a and the ratio of inertia moments C_f/C_a are got by simulation.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

69-72

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.69

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Online since:

September 2013

Authors:

Zhi Gang Wang*, Wei Li

Keywords:

Dual-Spin Configuration, Dynamic Stability, Gyroscopic Stability, Projectile

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