A Mathematical Model of the UH-60 Helicopter

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ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Mathematical Model of the UH-60 Helicopter by : K. B. Hilbert

Download or read book A Mathematical Model of the UH-60 Helicopter written by K. B. Hilbert and published by . This book was released on 1984 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the revisions made to a mathematical model of a single main rotor helicopter. These revisions were necessary to model the UH-60 helicopter accurately. The major modifications to the model include fuselage aerodynamic force and moment equations that are specific to the UH-60, a canted tail rotor, a horizontal stabilator with variable incidence, and a pitch bias actuator (PBA). In addition, the model requires a full set of parameters which describe the helicopter configuration and its physical characteristics.

A Mathematical Force and Moment Model of a UH-1H Helicopter for Flight Dynamics Simulations

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Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Mathematical Force and Moment Model of a UH-1H Helicopter for Flight Dynamics Simulations by : Peter D. Talbot

Download or read book A Mathematical Force and Moment Model of a UH-1H Helicopter for Flight Dynamics Simulations written by Peter D. Talbot and published by . This book was released on 1977 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mathematical Modeling and State Estimation for a UH-60 Flight Data Reply and Refly System

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Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (23 download)

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Book Synopsis Mathematical Modeling and State Estimation for a UH-60 Flight Data Reply and Refly System by : Mark S. Whorton

Download or read book Mathematical Modeling and State Estimation for a UH-60 Flight Data Reply and Refly System written by Mark S. Whorton and published by . This book was released on 1989 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

UH-60A Black Hawk Engineering Simulation Program

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (731 download)

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Book Synopsis UH-60A Black Hawk Engineering Simulation Program by : J. J. Howlett

Download or read book UH-60A Black Hawk Engineering Simulation Program written by J. J. Howlett and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Flight-Dynamic Helicopter Mathematical Model with a Single Flap-Lag-Torsion Main Rotor

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Publisher : DIANE Publishing
ISBN 13 : 1428916784
Total Pages : 118 pages
Book Rating : 4.4/5 (289 download)

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Book Synopsis A Flight-Dynamic Helicopter Mathematical Model with a Single Flap-Lag-Torsion Main Rotor by :

Download or read book A Flight-Dynamic Helicopter Mathematical Model with a Single Flap-Lag-Torsion Main Rotor written by and published by DIANE Publishing. This book was released on with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

UH-60A Black Hawk Engineering Simulation Program. Volume 1: Mathematical Model

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Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis UH-60A Black Hawk Engineering Simulation Program. Volume 1: Mathematical Model by :

Download or read book UH-60A Black Hawk Engineering Simulation Program. Volume 1: Mathematical Model written by and published by . This book was released on 1981 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Mathematical Model of the CH-53 Helicopter

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Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Mathematical Model of the CH-53 Helicopter by : William R. Sturgeon

Download or read book A Mathematical Model of the CH-53 Helicopter written by William R. Sturgeon and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Control Equivalent Turbulence Input Model for the UH-60 Helicopter

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Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (68 download)

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Book Synopsis Control Equivalent Turbulence Input Model for the UH-60 Helicopter by : Jeff Lusardi

Download or read book Control Equivalent Turbulence Input Model for the UH-60 Helicopter written by Jeff Lusardi and published by . This book was released on 2004 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Flight-dynamic Helicopter Mathematical Model with a Single Flap-lag-torsion Main Rotor

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Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Flight-dynamic Helicopter Mathematical Model with a Single Flap-lag-torsion Main Rotor by :

Download or read book A Flight-dynamic Helicopter Mathematical Model with a Single Flap-lag-torsion Main Rotor written by and published by . This book was released on 1990 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mathematical model of a helicopter system with a single main rotor that includes rigid, hinge-restrained rotor blades with flap, lag, and torsion degrees of freedom is described. The model allows several hinge sequences and two offsets in the hinges. Quasi-steady Greenberg theory is used to calculate the blade-section aerodynamic forces, and inflow effects are accounted for by using a three-state nonlinear dynamic inflow model. The motion of the rigid fuselage is defined by six degrees of freedom, and an optional rotor rpm degree of freedom is available. Empennage surfaces and the tail rotor are modeled, and the effect of main-rotor downwash on these elements is included. Model trim, linearization, and time-integration operations are described and can be applied to a subset of the model in the rotating and nonrotating coordinate frame. A preliminary validation of the model is made by comparing its results with those of other analytical and experimental studies. This publication presents the results of research completed in November 1989.

NASA Technical Paper

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ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis NASA Technical Paper by :

Download or read book NASA Technical Paper written by and published by . This book was released on 2000 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Mathematical Model of a Single Main Rotor Helicopter for Piloted Simulation

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ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Mathematical Model of a Single Main Rotor Helicopter for Piloted Simulation by : Peter D. Talbot

Download or read book A Mathematical Model of a Single Main Rotor Helicopter for Piloted Simulation written by Peter D. Talbot and published by . This book was released on 1982 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Identification Modeling and Characteristics of Miniature Rotorcraft

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Publisher : Springer Science & Business Media
ISBN 13 : 1475737858
Total Pages : 237 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Identification Modeling and Characteristics of Miniature Rotorcraft by : Bernard Mettler

Download or read book Identification Modeling and Characteristics of Miniature Rotorcraft written by Bernard Mettler and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identification Modeling and Characteristics of Miniature Rotorcraft introduces an approach to developing a simple and effective linear parameterized model of vehicle dynamics using the CIFERâ identification tool created by the Army/NASA Rotorcraft Division. It also presents the first application of the advanced control system optimization tool CONDUITâ to systematically and efficiently tune control laws for a model-scale UAV helicopter against multiple and competing dynamic response criteria. Identification Modeling and Characteristics of Miniature Rotorcraft presents the detailed account of how the theory was developed, the experimentation performed, and how the results were used. This book will serve as a basic and illustrative guide for all students that are interested in developing autonomous flying helicopters.

Mathematical Model of the SH-3G Helicopter

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Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Mathematical Model of the SH-3G Helicopter by :

Download or read book Mathematical Model of the SH-3G Helicopter written by and published by . This book was released on 1982 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fidelity Assessment of a Uh-60a Simulation on the NASA Ames Vertical Motion Simulator

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723580147
Total Pages : 324 pages
Book Rating : 4.5/5 (81 download)

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Book Synopsis Fidelity Assessment of a Uh-60a Simulation on the NASA Ames Vertical Motion Simulator by : National Aeronautics and Space Administration (NASA)

Download or read book Fidelity Assessment of a Uh-60a Simulation on the NASA Ames Vertical Motion Simulator written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-24 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Helicopter handling qualities research requires that a ground-based simulation be a high-fidelity representation of the actual helicopter, especially over the frequency range of the investigation. This experiment was performed to assess the current capability to simulate the UH-60A Black Hawk helicopter on the Vertical Motion Simulator (VMS) at NASA Ames, to develop a methodology for assessing the fidelity of a simulation, and to find the causes for lack of fidelity. The approach used was to compare the simulation to the flight vehicle for a series of tasks performed in flight and in the simulator. The results show that subjective handling qualities ratings from flight to simulator overlap, and the mathematical model matches the UH-60A helicopter very well over the range of frequencies critical to handling qualities evaluation. Pilot comments, however, indicate a need for improvement in the perceptual fidelity of the simulation in the areas of motion and visual cuing. The methodology used to make the fidelity assessment proved useful in showing differences in pilot work load and strategy, but additional work is needed to refine objective methods for determining causes of lack of fidelity. Atencio, Adolph, Jr. Ames Research Center NASA-TM-104016, A-93071, NAS 1.15:104016, USAATC-TR-93-A-005, AD-A271172 RTOP 505-59-52...

A Mathematical Model of the On-deck Helicopter/ship Dynamic Interface

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Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (224 download)

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Book Synopsis A Mathematical Model of the On-deck Helicopter/ship Dynamic Interface by : Jeremy Blackwell

Download or read book A Mathematical Model of the On-deck Helicopter/ship Dynamic Interface written by Jeremy Blackwell and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Flight Test Identification and Simulation of a UH-60A Helicopter and Slung Load

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Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Flight Test Identification and Simulation of a UH-60A Helicopter and Slung Load by :

Download or read book Flight Test Identification and Simulation of a UH-60A Helicopter and Slung Load written by and published by . This book was released on 2001 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Helicopter slung-load operations are common in both military and civil contexts. Helicopters and loads are often qualified for these operations by means of flight tests, which can be expensive and time consuming. There is significant potential to reduce such costs both through revisions in flight-test methods and by using validated simulation models. To these ends, flight tests were conducted at Moffett Field to demonstrate the identification of key dynamic parameters during flight tests (aircraft stability margins and handling-qualities parameters, and load pendulum stability), and to accumulate a data base for simulation development and validation. The test aircraft was a UH-60A Black Hawk, and the primary test load was an instrumented 8- by 6- by 6-ft cargo container. Tests were focused on the lateral and longitudinal axes, which are the axes most affected by the load pendulum modes in the frequency range of interest for handling qualities; tests were conducted at airspeeds from hover to 80 knots. Using telemetered data, the dynamic parameters were evaluated in near real time after each test airspeed and before clearing the aircraft to the next test point. These computations were completed in under 1 min. A simulation model was implemented by integrating an advanced model of the UH-60A aerodynamics, dynamic equations for the two-body slung-load system, and load static aerodynamics obtained from wind-tunnel measurements. Comparisons with flight data for the helicopter alone and with a slung load showed good overall agreement for all parameters and test points; however, unmodeled secondary dynamic losses around 2 Hz were found in the helicopter model and they resulted in conservative stability margin estimates.

Dynamics, Control, and Flying Qualities of V/STOL Aircraft

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Publisher : AIAA
ISBN 13 : 9781600860478
Total Pages : 240 pages
Book Rating : 4.8/5 (64 download)

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Book Synopsis Dynamics, Control, and Flying Qualities of V/STOL Aircraft by : James A. Franklin

Download or read book Dynamics, Control, and Flying Qualities of V/STOL Aircraft written by James A. Franklin and published by AIAA. This book was released on 2002 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This text presents the principles of dynamics and control for vertical, short take-off landing (V/STOL) aircraft. It is the first book of its kind. It is intended for graduate students and professionals in aeronautics who have knowledge of linear systems analysis, aircraft static, dynamic stability, and control. The text begins with a discussion of V/STOL aircraft operations. Control strategies, equations of motion, longitudinal and lateral-directional flying qualities in both hover and forward flight, wind and turbulence responses, and control augmentation and cockpit displays are covered. Specific examples of the YAV-8B Harrier and XV-15 Tilt Rotor aircraft are used to illustrate actual V/STOL dynamic and control characteristics.