HTPB／HMX推进剂能量特性与工作压强关系的研究

A Study of Relationship Between Energetic Propertics of HTPB/HMX Propellant and Operating Pressures

采用标准试验发动机实测结果及理论计算，研究了ＨＴＰＢ／ＨＭＸ推进剂比冲与发动机工作压强之间的关系．研究结果表明，在发动机相同的工作条件下，工作压强由５ＭＰａ提高到１０ＭＰａ可使推进齐比冲净增１０２Ｎ．ｓ／ｋｇ，发动机工作压强最好选取大于６ＭＰａ。这一结果为发动机设计提供了参考依据。

he relationship between the specific impulse of HTPB/HMX propellant and the operating pressure of the motor is studied based on the results from a stanard test motor and the theoretical calculations.The results show that a specific impulse gain of 102 N.s/kg can be obtained in the same motor condition by increasing the operating pressure from 5MPa to 10MPa.The operating pressure of more than 6MPa is preferred which can be used as a reference basis for motor design.