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Hypersonic Vehicle Model And Control Law Development Using Hoo And U Synthesis
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Book Synopsis Hypersonic Vehicle Model and Control Law Development Using Hoo and U Synthesis by : Irene M. Gregory
Download or read book Hypersonic Vehicle Model and Control Law Development Using Hoo and U Synthesis written by Irene M. Gregory and published by . This book was released on 1994 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Vehicle Control Law Development Using Hoo and U-synthesis by : Irene M. Gregory
Download or read book Hypersonic Vehicle Control Law Development Using Hoo and U-synthesis written by Irene M. Gregory and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Vehicle Model and Control Law Development Using H and U Synthesis by : Irene M. Gregory
Download or read book Hypersonic Vehicle Model and Control Law Development Using H and U Synthesis written by Irene M. Gregory and published by . This book was released on 1994 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Vehicle Control Law Development Using H Infinity and Mu-synthesis by :
Download or read book Hypersonic Vehicle Control Law Development Using H Infinity and Mu-synthesis written by and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Vehicle Model and Control Law Development Using H(infinity) and Micron Synthesis by :
Download or read book Hypersonic Vehicle Model and Control Law Development Using H(infinity) and Micron Synthesis written by and published by . This book was released on 1994 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722287467 Total Pages :44 pages Book Rating :4.2/5 (874 download)
Book Synopsis Hypersonic Vehicle Model and Control Law Development Using H(infinity) and Micron Synthesis by : National Aeronautics and Space Administration (NASA)
Download or read book Hypersonic Vehicle Model and Control Law Development Using H(infinity) and Micron Synthesis written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The control system design for a Single Stage To Orbit (SSTO) air breathing vehicle will be central to a successful mission because a precise ascent trajectory will preserve narrow payload margins. The air breathing propulsion system requires the vehicle to fly roughly halfway around the Earth through atmospheric turbulence. The turbulence, the high sensitivity of the propulsion system to inlet flow conditions, the relatively large uncertainty of the parameters characterizing the vehicle, and continuous acceleration make the problem especially challenging. Adequate stability margins must be provided without sacrificing payload mass since payload margins are critical. Therefore, a multivariable control theory capable of explicitly including both uncertainty and performance is needed. The H(infinity) controller in general provides good robustness but can result in conservative solutions for practical problems involving structured uncertainty. Structured singular value mu framework for analysis and synthesis is potentially much less conservative and hence more appropriate for problems with tight margins. An SSTO control system requires: highly accurate tracking of velocity and altitude commands while limiting angle-of-attack oscillations, minimized control power usage, and a stabilized vehicle when atmospheric turbulence and system uncertainty are present. The controller designs using H(infinity) and mu-synthesis procedures were compared. An integrated flight/propulsion dynamic mathematical model of a conical accelerator vehicle was linearized as the vehicle accelerated through Mach 8. Vehicle acceleration through the selected flight condition gives rise to parametric variation that was modeled as a structured uncertainty. The mu-analysis approach was used in the frequency domain to conduct controller analysis and was confirmed by time history plots. Results demonstrate the inherent advantages of the mu framework for this class of problems. Gregory, Irene M. and Chowdhr...
Book Synopsis Hypersonic Vehicle Model and Control Law Development Using H [infinity Symbol] and [mu] Synthesis by :
Download or read book Hypersonic Vehicle Model and Control Law Development Using H [infinity Symbol] and [mu] Synthesis written by and published by . This book was released on 1994 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Vehicle Control Law Development Using H[infinity Symbol] and [mu]-synthesis by : Irene M. Gregory
Download or read book Hypersonic Vehicle Control Law Development Using H[infinity Symbol] and [mu]-synthesis written by Irene M. Gregory and published by . This book was released on 1992 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Computers in Research and Development at Langley Research Center by :
Download or read book The Role of Computers in Research and Development at Langley Research Center written by and published by . This book was released on 1994 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Problems in Aviation and Aerospace by : S. Sivasundaram
Download or read book Nonlinear Problems in Aviation and Aerospace written by S. Sivasundaram and published by CRC Press. This book was released on 2000-01-10 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of nonlinear phenomena in aviation and aerospace includes developments in computer technology and the use of nonlinear mathematical models. Nonlinearities are a feature of aircraft dynamics and flight control systems and need to respond to achieve stability and performance. This multiauthor volume comprises selected papers from the confer
Book Synopsis Control Relevant Modeling and Design of Scramjet-powered Hypersonic Vehicles by : Jeffrey James Dickeson
Download or read book Control Relevant Modeling and Design of Scramjet-powered Hypersonic Vehicles written by Jeffrey James Dickeson and published by . This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides an overview of scramjet-powered hypersonic vehicle modeling and control challenges. Such vehicles are characterized by unstable non-minimum phase dynamics with significant coupling and low thrust margins. Recent trends in hypersonic vehicle research are summarized. To illustrate control relevant design issues and tradeoffs, a generic nonlinear 3DOF longitudinal dynamics model capturing aero-elastic-propulsive interactions for wedge-shaped vehicle is used. Limitations of the model are discussed and numerous modifications have been made to address control relevant needs. Two different baseline configurations are examined over a two-stage to orbit ascent trajectory. The report highlights how vehicle level-flight static (trim) and dynamic properties change over the trajectory. Thermal choking constraints are imposed on control system design as a direct consequence of having a finite FER margin. The implication of this state-dependent nonlinear FER margin constraint, the right half plane (RHP) zero, and lightly damped flexible modes, on control system bandwidth (BW) and FPA tracking has been discussed. A control methodology has been proposed that addresses the above dynamics while providing some robustness to modeling uncertainty. Vehicle closure (the ability to fly a trajectory segment subject to constraints) is provided through a proposed vehicle design methodology. The design method attempts to use open loop metrics whenever possible to design the vehicle. The design method is applied to a vehicle/control law closed loop nonlinear simulation for validation. The 3DOF longitudinal modeling results are validated against a newly released NASA 6DOF code.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781794274235 Total Pages :34 pages Book Rating :4.2/5 (742 download)
Book Synopsis Hypersonic Vehicle Propulsion System Control Model Development Roadmap and Activities by : National Aeronautics and Space Adm Nasa
Download or read book Hypersonic Vehicle Propulsion System Control Model Development Roadmap and Activities written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-19 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Fundamental Aeronautics Program Hypersonic project is directed towards fundamental research for two classes of hypersonic vehicles: highly reliable reusable launch systems (HRRLS) and high-mass Mars entry systems (HMMES). The objective of the hypersonic guidance, navigation, and control (GN&C) discipline team is to develop advanced guidance and control algorithms to enable efficient and effective operation of these challenging vehicles. The ongoing work at the NASA Glenn Research Center supports the hypersonic GN&C effort in developing tools to aid the design of advanced control algorithms that specifically address the propulsion system of the HRRLSclass vehicles. These tools are being developed in conjunction with complementary research and development activities in hypersonic propulsion at Glenn and elsewhere. This report is focused on obtaining control-relevant dynamic models of an HRRLS-type hypersonic vehicle propulsion system. Stueber, Thomas J. and Le, Dzu K. and Vrnak, Daniel R. Glenn Research Center NASA/TM-2009-215483, E-16687
Book Synopsis Guidance and Flight Control Law Development for Hypersonic Vehicles by : Anthony J. Calise
Download or read book Guidance and Flight Control Law Development for Hypersonic Vehicles written by Anthony J. Calise and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Vehicle Propulsion System Control Model Development Roadmap and Activities by : Thomas J. Stueber
Download or read book Hypersonic Vehicle Propulsion System Control Model Development Roadmap and Activities written by Thomas J. Stueber and published by BiblioGov. This book was released on 2013-06 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Fundamental Aeronautics Program Hypersonic project is directed towards fundamental research for two classes of hypersonic vehicles: highly reliable reusable launch systems (HRRLS) and high-mass Mars entry systems (HMMES). The objective of the hypersonic guidance, navigation, and control (GN&C) discipline team is to develop advanced guidance and control algorithms to enable efficient and effective operation of these challenging vehicles. The ongoing work at the NASA Glenn Research Center supports the hypersonic GN&C effort in developing tools to aid the design of advanced control algorithms that specifically address the propulsion system of the HRRLSclass vehicles. These tools are being developed in conjunction with complementary research and development activities in hypersonic propulsion at Glenn and elsewhere. This report is focused on obtaining control-relevant dynamic models of an HRRLS-type hypersonic vehicle propulsion system.
Book Synopsis Schlachtordnung der Kayserlichen Armee, zur Attaque der Verschanzungen von Breslau, 1757 by :
Download or read book Schlachtordnung der Kayserlichen Armee, zur Attaque der Verschanzungen von Breslau, 1757 written by and published by . This book was released on 1757 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Flexible Hypersonic Vehicle Model Developed with Piston Theory by : Michael W. Oppenheimer
Download or read book A Flexible Hypersonic Vehicle Model Developed with Piston Theory written by Michael W. Oppenheimer and published by . This book was released on 2006 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: For high Mach number flows, M> 4, piston theory has been used to calculate the pressures on the surfaces of a vehicle. In a two-dimensional inviscid flow, a perpendicular column of fluid stays intact as it passes over a solid surface. Thus, the pressure at the surface can be calculated assuming the surface were a piston moving into a column of fluid. In this work, first-order piston theory is used to calculate the forces, moments, and stability derivatives for longitudinal motion of a hypersonic vehicle. The advantage of piston theory over other techniques, such as Prandtl-Meyer flow, oblique shock, or Newtonian impact theory, is that unsteady aerodynamic effects can be included in the model. The unsteady effects, considered in this work, include perturbations in the linear velocities and angular rates, due to rigid body motion. A flexible model is developed using Euler-Bernoulli beam theory and the unsteady effects due to aeroelastics are captured in the model.