摘要
为在方案设计和系统性能估算阶段,对液体火箭发动机进行方便快捷的系统研究,基于MSC.EASY5仿真平台,采用模块化建模思想,建立了液体火箭发动机系统工作过程主要组件的仿真模型,通过Fortran/C等自编程序与EASY5链接,进一步扩展了模型元件范围,并扩充了流体种类,使其适用于液体火箭发动机的研究,并根据发动机循环方式,搭建液体火箭发动机系统模型。为验证模型的正确性,针对RD-170发动机系统建立系统模型,并进行稳态点仿真计算,仿真结果与已有资料相符合,且仿真快速便捷,仿真结果精度高。以上结果表明,本文建模与仿真方法具有较强的实用性。
Based on the MSC.EASY5 platform, the simulation models of main components in the operation process of liquid rocket engine were developed to improve the analysis ability in the steps of project design and system performance estimation. By linking the Fortran or C code with EASY5, the component models and fluid types were extended further to make them applied to the study of liquid rocket engine. The system model of the liquid rocket engine were established according to the circulation way of the engine. The system model of RD-170 engine was built and simulating calculation of steady-state points was conducted to validate the correctness of the models. The simulation result coincides with the available materials. The simulation accuracy is high. The results show that the modeling and simulation methods are practical. It will provide a reference for project design and performance estimation of liquid rocket engine with continuous efforts of improving the models.
出处
《火箭推进》
CAS
2015年第1期70-75,共6页
Journal of Rocket Propulsion
