固体火箭发动机装药寿命预示方法试验研究

THE RESEARCH OF FORECAST METHOD FOR GRAIN LIFE IN SOLD ROCKET MOTORS

关键词:  复合推进剂  装药  老化试验  储存寿命

Key words:  Composite propellant  Charge  Aging test  Storage life

摘要:

研究了固体火箭发动机装药硬度和ＨＴＰＢ推进剂方坯硬度、强度及延伸率在贮试期内的变化规律，建立了装药硬度－强度、延伸率－贮存期相关联的数学模型和回归方程组。用其预估固体发动机装药寿命。

Abstract:

The variational laws of grain hardness on solid rocket motors and the hardness, thestrength and the extensihility of HTPB propellant piece in the storage period are studied.Themathematical models and the regression equation groups of the grain hardness strength relation, theextensibility storag life relation have been built in this paper. The grain life on solid rocket motors arepredicted by means of the method.