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Release : 1992
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Helicopter Flight Control System Design Using the Linear Quadratic Regulator for Robust Eigenstructure Assignment - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Helicopter Flight Control System Design Using the Linear Quadratic Regulator for Robust Eigenstructure Assignment write by . This book was released on 1992. Helicopter Flight Control System Design Using the Linear Quadratic Regulator for Robust Eigenstructure Assignment available in PDF, EPUB and Kindle. This thesis applied modern, multi-variable control design techniques, via a FORTRAN computer algorithm, to U.S. Army helicopter models in hovering flight conditions. Eigenstructure assignment and Linear Quadratic Regulator (LQR) theory are used to achieve enhanced closed loop performance and stability characteristics with full state feedback. The addition of cross coupling weights to the standard LQR performance index is specifically addressed. A desired eigenstructure is chosen with a goal of reduced pilot workload via performance qualities requirements. Cross coupling weighting is shown to provide greater flexibility in achieving a desired closed loop eigenstructure. While the addition of cross coupling weighting is shown to eliminate stability margin guarantees associated with LQR methods, the modified algorithm can achieve a closer match to a desired eigenstructure than previous versions of the program while maintaining acceptable stability characteristics.