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Rotorcraft Simulation Model Enhancement To Support Land And Sea Based Testing And Operational Analysis
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Book Synopsis Rotorcraft Simulation Model Enhancement to Support Land and Sea-Based Testing and Operational Analysis by :
Download or read book Rotorcraft Simulation Model Enhancement to Support Land and Sea-Based Testing and Operational Analysis written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study addresses model enhancements to rotor wake modeling that significantly improve the prediction of helicopter behavior across the flight envelope. Specifically, the model enhancements have been made to include the tip vortex distortion effect in the finite state dynamic wake model to improve the poor prediction of rotorcraft off-axis response. The enhanced formulation allows for better prediction of aerodynamic interference. This includes the rotor aerodynamic interference on fuselage and other lifting surfaces. A modification of the finite state dynamic wake model has also been made to include the vortex ring state. The resulting simulation is applicable across the flight envelope. The enhanced model has shown a remarkable improvement in the prediction of helicopter response in both hover and forward flight.
Book Synopsis Joint Enhanced Rotorcraft Test and Operational Capability for the 21st Century by :
Download or read book Joint Enhanced Rotorcraft Test and Operational Capability for the 21st Century written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The DoD procurement account fell by more than 70% during the past decade. The cost associated with rotorcraft design, analysis, testing, training, and support, using current techniques, promises to escalate in the predicted hostile fiscal environment of the 21st century. This cost must be reduced through the use of credible simulation and other analytical options. Conventional multi-service air vehicle flight testing is becoming more expensive and the test results may uncover problems late in the acquisition cycle, where making changes can be both costly and time consuming. Mission rehearsal training is normally conducted on operational flight trainers far removed from the battlefield site. A need exists to conduct joint service air vehicle testing analytically first, and to do mission rehearsal training at deployed sites. A need also exists to help integrate the design and teat phases of the aircraft acquisition cycle and to do 21st century flight testing better, faster, cheaper, and safer. The Joint Enhanced Rotorcraft Test and Operational Capability (JERTOC) concept was formulated as one approach to help realize the generic better/faster/cheaper/safer criteria applied to test and evaluation (T & E), as well as, to help achieve local flight test objectives of reducing (T & E coat and cycle time. The JERTOC concept involves testing and evaluating advanced technology programs available in the 21th century in aircraft and engine simulation modeling, design, test planning, and teat reporting to better support acquisition, testing and training in an integrated environment. An initial goal of this program concept is to develop the capability to do analytically in one month what might currently take more than a year of actual air vehicle flight testing. A final goal includes using the capability of a high performance computing (HPC) center to analytically run a helicopter air vehicle test program in one 24 hr period.
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 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Shipboard/rotorcraft Simulation and Analysis by : Ted A. Akinyanju
Download or read book Shipboard/rotorcraft Simulation and Analysis written by Ted A. Akinyanju and published by . This book was released on 2007 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research has simulated the rotorcraft on-deck dynamic interface for defining safe operational conditions and for the first time, compared the results of studies with measured performance stability data. A comprehensive interface simulation and analysis of rotorcraft shipboard on-deck operational envelopes were developed in FLIGHTLAB (a software tool for rapid prototyping and interactive evaluation of simulation models). the helicopter was modeled using a blade element model and the ship airwake was simulated using Computational Fluid Dynamics (CFD) data. Investigations showed that the ship speed, the ship heading, the rotor speed, and sea conditions significantly influence rotorcraft on-deck handling.
Book Synopsis Joint Enhanced Rotorcraft Test and Operational Capability (JERTOC). by :
Download or read book Joint Enhanced Rotorcraft Test and Operational Capability (JERTOC). written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The DoD procurement account fell by more than 70% during the past decade. The cost associated with the next generation of rotorcraft design, analysis, testing, training, and support, using current techniques, promises to escalate in a predicted hostile fiscal environment. This cost must be reduced through the use of credible simulation and other analytical options. Conventional multi-service air vehicle flight testing is becoming more expensive and the test results may uncover problems late in the acquisition cycle, where making changes can be both costly and time consuming. Mission rehearsal training is normally conducted on operational flight trainers far removed from the battlefield site. A need exists to conduct joint service air vehicle testing analytically first, and to do mission rehearsal training at deployed sites. A need also exists to help integrate the design and test phases of the aircraft acquisition cycle and to do flight testing better, faster, cheaper, and safer. The JERTOC concept was formulated as one approach to help realize the generic better/faster/ cheaper/safer criteria applied to T & E, as well as, to help achieve local flight test objectives of reducing TE cost and cycle time.
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Directory of Federal Laboratory and Technology Resources by :
Download or read book Directory of Federal Laboratory and Technology Resources written by and published by DIANE Publishing. This book was released on 1994 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the individual capabilities of each of 1,900 unique resources in the federal laboratory system, and provides the name and phone number of each contact. Includes government laboratories, research centers, testing facilities, and special technology information centers. Also includes a list of all federal laboratory technology transfer offices. Organized into 72 subject areas. Detailed indices.
Book Synopsis Research and Technology Objectives and Plans Summary (RTOPS) by :
Download or read book Research and Technology Objectives and Plans Summary (RTOPS) written by and published by . This book was released on 1985 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Science and Astronautics Publisher : ISBN 13 : Total Pages :128 pages Book Rating :4.0/5 (11 download)
Book Synopsis Contemporary and Future Aeronautical Research by : United States. Congress. House. Committee on Science and Astronautics
Download or read book Contemporary and Future Aeronautical Research written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1961 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1982 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Contracts Report written by and published by . This book was released on 1988 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Signal written by and published by . This book was released on 1990 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Directory of Federal Laboratory & Technology Resources by :
Download or read book Directory of Federal Laboratory & Technology Resources written by and published by . This book was released on 1993 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Research Directory written by and published by . This book was released on 2009 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
