Calculation method for void ratio of solid component in composite solid propellant

• Main Authors: SHEN YEWEI, MAO CHENGLI, ZHANG YUCHENG, WU ZHUJUN, CHEN SHUBING, LI MIAOMIAO
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; PHYSICS

The invention relates to a method for calculating the void ratio of solid components in a composite solid propellant, which comprises the following steps of: calculating the volume ratio and the diameter ratio of coarse particles I and fine particles II under grading of two solid components according to a closest packing model; the n solid components are sorted as X1... Xn, the particle size dn and the volume Vn according to the particle size, and the particle size ratio # imgabs0 # and the volume ratio # imgabs1 # j > i of Xi and Xj are calculated; according to the relationship between the particle size ratio and the volume ratio of # imgabs2 # and # imgabs3 # and the coarse particles I and the fine particles II, the stacking forms of Xi and Xj are judged; and calculating the porosity # imgabs4 # and/or # imgabs5 # according to the accumulation form to calculate the porosity # imgabs6 # to obtain the porosity of an actual formula, thereby providing a basis for reasonable adjustment of the granularity and gra