圆管发动机法测定固体推进剂的泊松比

推进技术 ›› 2001, Vol. 22 ›› Issue (2): 171-173.

圆管发动机法测定固体推进剂的泊松比

何铁山,蒲远远,王志强,朱文龙

湖北红星化学研究所!湖北襄樊441003;湖北红星化学研究所!湖北襄樊441003;湖北红星化学研究所!湖北襄樊441003;湖北红星化学研究所!湖北襄樊441003

发布日期:2021-08-15

Determining poisson’s ratio of solid propellant by means of cylindrical motors

Hubei Red-Star Chemical Inst.,Xiangfan 441003,China;Hubei Red-Star Chemical Inst.,Xiangfan 441003,China;Hubei Red-Star Chemical Inst.,Xiangfan 441003,China;Hubei Red-Star Chemical Inst.,Xiangfan 441003,China

Published:2021-08-15

摘要/Abstract

摘要： 建立了一种测定固体推进剂泊松比的方法———圆管发动机法。测定了两种不同外内径比的圆管发动机药柱在固化降温后内孔的最大径向形变量 ,以该形变量为依据 ,利用药柱在固化降温过程的有限元计算程序 ,拟合计算出该配方药柱在固化降温后于不同温度下的泊松比 ,测定相对误差均不超过 0 5 %。

关键词: 固体推进剂;泊松比;有限元法;圆管发动机

Abstract: Cylindrical motors method was built to determine the poisson’s ratios of solid propellants.According to the maximum radial deformations of the perforations of cylindrical motors with two different outer-inner radial ratios after having been cured and dropped in the temperatures,the poisson’s ratios of the solid propellant grain at the different temperatures was fit out by use of FEM.The relative errors of the poisson’s ratios determination at different temperatures don’t exceed 0.5%.

Key words: Solid propellant;Poisson’s ratio;Finite element method;Cylindrical motor

何铁山,蒲远远,王志强,朱文龙. 圆管发动机法测定固体推进剂的泊松比[J]. 推进技术, 2001, 22(2): 171-173.