摘要
针对非线性飞机方程的控制有效率进行了故障检测与诊断。通过将吹风表格数据处理成一种参数化非线性函数 ,找出了飞机状态量与控制律分离的控制有效率表达式和检测方法。算法中将检测结果与对应故障模式进行了分类处理 ,提高了算法的鲁棒性。最后用飞机的实例进行了仿真验证。结果表明 ,该算法具有较高的检测精度和较快的检测速度。
A failure detection and identification (FDI) method for nonlinear aircraft described by the data table is developed to evaluate the effectiveness of control surface. The wind tunnel data table is operated into a nonlinear parameterized description (NPD) model. Then a simple expression of the effectiveness of control surface and its FDI method are found. In the operating program the FDI result is classified according to the failure model to achieve more FDI robustness. An example of an aircraft is illustrated. The simulation result shows a very short FDI time and high acceptable precision.
出处
《飞行力学》
CSCD
2002年第2期27-30,共4页
Flight Dynamics
基金
重点航空基金资助项目 (98Z5 1 0 0 2 )
