药柱的燃速弧线特征

Arc Charaeteristic of Burning Rate for Solid Propellant Grains

存放多年的双基推进剂药柱,经实验发现,在肉厚方向有一种称为“燃速弧线”的特征,也称为“虹效应”,爆热也有此特征,它会引起固体火箭发动机压强曲线和推力曲线的变异,从而对导弹的战术性能发生影响。

It has been found by means of experiments that an arc characteristic of burning rate presents in the web direction of DB propellant grains which have been stored for many years. This characteristic is called 'rainbow effect' . It would result in variation of pressure and thrust curves of a solid rocket motor and make an impact on tactical performance of missiles.