旋转充液系统全飞行过程非线性动力学仿真

本文考虑一类刚认耦合的旋转充液系统的飞行动力学问题，在依据力学变分原理给出基本方程，导出全飞行过程运动状态方程的基础上，建立了相应的仿真模型。可能通过对Navier-Stokes方程求解和液体流动的惯性波振动特性，给出液体的反作用力矩。经过仿真实验，分析角运动的时间序列，给出了比较详尽的飞行不稳定机制分析结果。

Nonlinear dynamics simulation to the complete flight process of rotating liquid-filled system

To the flight dynamic problems of a coupled rigid-liquid rotating liquid-filled system,based on the government equations obtained from the variational principles in mechanics,the complete flight motion state equations are introduced and it's simulating models is established.The liquid moments acting to system can be obtained by the numerical solutions of Navier-Stokes equations and the liquid flow characteristic of inertial wave oscillation.Through the simulating experiments and the analysis of angle motion time series,the detailed analyzed conclusions about flight instability mechanism are presented.