液体火箭推进系统液路固有频率计算  

The calculation of the intrinsic frequency of the liquid rocket propulsion system

作　　者：杨明[1] 杨智春[1] 史淑娟 

机构地区：[1]西北工业大学,西安710072 [2]北京宇航系统工程研究所,北京100076

出　　处：《强度与环境》2009年第5期1-6,共6页Structure & Environment Engineering

摘　　要：采用MATLAB/SIMULINK软件,基于电路法对推进系统液路固有频率进行仿真,仿真结果与采用传递矩阵法结果相接近,说明采用电路仿真法计算液体火箭推进系统固有频率是可行的。与传递矩阵法相比,电路仿真法更能精确反映各参数对推进系统液路固有频率影响关系。通过改变管路各元件布置,进而相应改变电路,最终可以实现优化推进系统固有频率的目的。By taking the circuit method , Matlab/simulink emulated the hquid intrinsic frequency of the propulsion system.The result of emulation is close to the result by taking the transmit matrix method, Which prove that the circuit method is feasible to be taken to calculate the intrinsic frequency of the liquid rocket propulsion system. Compared with the transmit matrix method, Circuit emulation can more exactly reflect how the parameters affect the intrinsic frequency of the liquid propulsion system. By changing the disposal of the pipe elements, and then changing the circuit, Finally the optimization of the liquid intrinsic frequency could be realized.

关 键 词：电路法 液体火箭 推进系统 固有频率 

分 类 号：V434.1[航空宇航科学与技术—航空宇航推进理论与工程]