【摘要】 利用MSCNastran开发语言DMAP(DirectMatrixAbstractionProgram),基于现代控制理论,建立机翼有限元结构的振动控制模型,并使用线性二次型最优控制理论对机翼结构进行振动抑制研究.根据MSCNastran对于大型稀疏矩阵强大的求解功能,有效地实现主动控制方法在大型有限元结构上的应用,并取得很好的控制效果.更多还原

【Abstract】 Based on the modern control theory, an aerofoil finite element control model is established by using MSC Nastran DMAP (Direct Matrix Abstraction Program).The vibration control is studied with linear quadratic optimal control theory proposed. With the powerful solution for large sparse matrix of MSC Nastran, the application of linear quadratic optimal control with negative feedback to the aerofoil is implemented and the good control effect is achieved.更多还原