Interior ballistics calculation method of solid rocket motors adopting offset and chamfered nozzles

An interior ballistics calculation method of a solid motor adopting an offset and chamfered nozzle is provided, in which the interior ballistics performance of the solid motor is improve and the problem of calculating thrust deflection angle is solved. The method can reduce the number of tests in the development stage, can reduce the development cost and shorten the development cycle, and has a positive effect on the design of solid rocket motor with a offset + chamfer nozzle. 本发明提出了种采用偏置且斜切结构喷管的固体发动机内弹道计算方法，提高了此类发动机的内弹道性能计算精度，解决了此类发动机的推力偏斜角计算问题；可以减少研制阶段试验数量、降低研制成本、缩短研制周期，对采用"偏置+斜切"结构喷管的固体发动机设计可以产生积极的效果。