固体推进剂体积松驰模量的数值解法

推进技术 ›› 1996, Vol. 17 ›› Issue (3): 64-67.

固体推进剂体积松驰模量的数值解法

高鸣

海军驻西安长峰机电研究所军代表室

发布日期:2021-08-15

A NUMERICAL CALCULATION METHOD OF BULK RELAXATION MODULUS FOR SOLID PROPELLANT

Navy Representative Office in Xi’an Chang Feng Electro-Mechanical Inst.,Xi’an, 710061

Published:2021-08-15

摘要/Abstract

摘要： 以粘弹理论为基础，采用拉氏逆变换和数值积分的方法，推导出由拉伸松弛模量Ｅ（ｔ）、粘弹泊松比ｖ（ｔ）计算固体推进剂体积松弛模量Ｋ（ｔ）的计算公式和数值解法。计算结果表明，由该方法计算的Ｋ（ｔ）值和实验得到的Ｋ（ｔ）值一致，且该方法简单、实用、方便、精度高。

关键词: 固体推进剂;粘弹性;体积弹性模量;数值计算

Abstract: n base of viscoelastic theory and using inversion of the Laplace transform and numerical calculation method,a formation and a numerical solution for bulk relaxation modulus K(t) from stress tension modulus E(t) and viscoclastic poisson ratio v(t) are obtained.The calculation results show good agreement with experimental data K(t).The method is very simple and accurate.

Key words: Solid propellant;Viscoclasticity;Bulk moduls;Numerical calculation

高鸣. 固体推进剂体积松驰模量的数值解法[J]. 推进技术, 1996, 17(3): 64-67.