Download or read book A Stochastic Optimal Feedforward and Feedback Control Methodology for Superagility written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new control design methodology is developed: Stochastic Optimal Feedforward and Feedback Technology (SOFFT). Traditional design techniques optimize a single cost function (which expresses the design objectives) to obtain both the feedforward and feedback control laws. This approach places conflicting demands on the control law such as fast tracking versus noise atttenuation/disturbance rejection. In the SOFFT approach, two cost functions are defined. The feedforward control law is designed to optimize one cost function, the feedback optimizes the other. By separating the design objectives and decoupling the feedforward and feedback design processes, both objectives can be achieved fully. A new measure of command tracking performance, Z-plots, is also developed. By analyzing these plots at off-nominal conditions, the sensitivity or robustness of the system in tracking commands can be predicted. Z-plots provide an important tool for designing robust control systems. The Variable-Gain SOFFT methodology was used to design a flight control system for the F/A-18 aircraft. It is shown that SOFFT can be used to expand the operating regime and provide greater performance (flying/handling qualities) throughout the extended flight regime. This work was performed under the NASA SBIR program. ICS plans to market the software developed as a new module in its commercial CACSD software package: ACET. Halyo, Nesim and Direskeneli, Haldun and Taylor, Deborah B. Unspecified Center AIRCRAFT CONTROL; AIRCRAFT PERFORMANCE; CONTROL SYSTEMS DESIGN; F-18 AIRCRAFT; FEEDBACK CONTROL; FEEDFORWARD CONTROL; FLIGHT CONTROL; OPTIMAL CONTROL; STOCHASTIC PROCESSES; APPLICATIONS PROGRAMS (COMPUTERS); FLIGHT CHARACTERISTICS; SENSITIVITY...

Download or read book A Stochastic Optimal Feedforward and Feedback Control Methodology for Superagility written by Nesim Halyo and published by . This book was released on 1992 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Stochastic Optimal Feedforward and Feedback Control Methodology for Superagility written by Nesim Halyo and published by . This book was released on 1992 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Evaluation of a Stochastic Optimal Feed forward and Feedback Technology SOFFT Flight Control Architecture written by Aaron J. Ostroff and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1993 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of a Simulation Tool to Determine Achievable Control Dynamics and Control Power Requirements with Perfect Tracking written by Aaron J. Ostroff and published by . This book was released on 1998 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Combined Stochastic Feedforward and Feedback Control Design Methodology with Application to Autoland Design written by Nesim Halyo and published by . This book was released on 1987 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA SP written by and published by . This book was released on 1993 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Listing of SBIR Awardees for written by and published by . This book was released on 1990 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrated Control Using the SOFFT Control Structure written by Nesim Halyo and published by . This book was released on 1996 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stochastic Optimal Control Theory with Application in Self Tuning Control written by Kenneth J. Hunt and published by Springer. This book was released on 1989-02-06 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book merges two major areas of control: the design of control systems and adaptive control. Original contributions are made in the polynomial approach to stochastic optimal control and the resulting control laws are then manipulated into a form suitable for application in the self-tuning control framework. A major contribution is the derivation of both scalar and multivariable optimal controllers for the rejection of measurable disturbances using feedforward. A powerful feature of the book is the presentation of a case-study in which the LQG self-tuner was tested on the pressure control loop of a power station. The broad coverage of the book should appeal not only to research workers, teachers and students of control engineering, but also to practicing industrial control engineers.

Download or read book Advanced Aero engine Concepts and Controls written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium and published by . This book was released on 1996 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stochastic Optimal Control written by Robert F. Stengel and published by Wiley-Interscience. This book was released on 1986-09-08 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents techniques for optimizing problems in dynamic systems with terminal and path constraints. Includes optimal feedback control, feedback control for linear systems, and regulator synthesis. Offers iterative methods for solving nonlinear control problems. Demonstrates how to apply optimal control in a practical fashion. Serves as a text for graduate controls courses as offered in aerospace, mechanical and chemical engineering departments.

Download or read book Integrated Flight and Propulsion Controls for Advanced Aircraft Configurations written by Walter C. Merrill and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Download or read book Aeronautical Engineering A Cumulative Index to a Continuing Bibliography supplement 300 written by and published by . This book was released on 1994 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: