摘要
通过对某型号飞机三轴（纵向、横向、侧向）操纵系统（机械操纵系统、增稳系统、自动驾驶仪系统）组成、结构及功能分析，建立了完整的数学模型。将系统分布参数分段集中化处理，在Ｍａｔｌａｂ环境下以模块化方式进行系统仿真，得到与实际系统静动态响应相吻合的仿真模型。由于飞机操纵系统模型的高阶非线性，采用“最小二乘参数拟合法”进行等效降阶处理，得到低阶带延迟环节的简化模型。这种以时域响应进行优化、频域响应进行验证的降价方法得出的仿真结果符合实际系统静动态特性要求，证明了等效低阶模型的有效性。该模型成功地应用于某型飞行模拟器操纵负荷系统的研究。
A complete mathematics model for a vehicle control system which includes mechanism system, augmentation control system , auto -control pilot is established by centralizing the distributed system parameters, the system simulation is presented through using MATLAB by the means of module block. The practical high order system model is equivalent to a low order model which static and dynamic response is identical to the high order model by applying the Least - squares estimation of the parameters of a dynamic model. The successful application in control force loading system of flight simulator indicates the effectiveness of the model and the method.
出处
《计算机仿真》
CSCD
2000年第3期15-18,共4页
Computer Simulation
