The Design Method of Star Tandem Grain

LI  Jialiang; DONG  Surong; CHANG  Xiuying; FENG  Leijiang

doi:10.15892/j.cnki.djzdxb.2013.02.044

Journal of Projectiles, Rockets, Missiles and Guidance >

2013 , Vol. 33 >Issue 2: 61 - 63

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2013.02.044

PROJECTILES TECHNOLOGY

The Design Method of Star Tandem Grain

LI Jialiang ,
DONG Surong ,
CHANG Xiuying ,
FENG Leijiang

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1 School of Mechatronics Engineering, North University of China, Taiyuan 030051, China
2 Shanxi Limin Industrial Co. Ltd, Shanxi Taigu 030812, China
3 Chongqing Hongyu Precision Industrial Co. Ltd, Chongqing 402760, China

Received date: 2012-06-07

Online published: 2025-05-26

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Abstract

In order to improve the rocket motor loading factor, increase the range, the star tandem grain structure was put forward. Mathematical relationships among initial combustion area, initial aerate parameter, volume backfill coefficient and grain geometry were provided. Parameters of interior ballistic performance of star tandem grain were calculated by using grain parameters of a rocket motor. The results of the calculation and design show that the star tandem grain can increase the engine grain weight, reduce ventilation parameters to improve the engine total impulse and thrust.

Key words： rocket motor; grain design; star grain

Cite this article

LI Jialiang , DONG Surong , CHANG Xiuying , FENG Leijiang . The Design Method of Star Tandem Grain[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2013 , 33(2) : 61 -63 . DOI: 10.15892/j.cnki.djzdxb.2013.02.044

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