Pressure And Profile Data Of 20 Conical Ribbon Parachutes

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Pressure and Profile Data of 20° Conical Ribbon Parachutes

Author : Helumt G. Heinrich
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (689 download)

Book Synopsis Pressure and Profile Data of 20° Conical Ribbon Parachutes by : Helumt G. Heinrich

Download or read book Pressure and Profile Data of 20° Conical Ribbon Parachutes written by Helumt G. Heinrich and published by . This book was released on 1977 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sandia Laboratories, Albuquerque, N.M., established wind tunnel data of 3 ft ribbon parachute models concerning canopy profiles, drag forces and pressure distribution. The data were analyzed at the University of Minnesota and resulted in presentations of drag coefficients, projected diameters and drag areas of reefed and unreefed and parachutes versus geometric porosity and suspension line length as well as in tables and graphs of canopy coordinates and related pressure distributions. Presssure integration about the canopy surfaces as given by the established coordinates provided drag forces which agreed satisfactorily with measured forces. Also, radial force coefficients of the various configurations were established. The results of this study are intended to serve as background information for related investigations such as studies concerning parachute dynamics, stress analysis, etc.

Pressure and Canopy Profile Data of 20° Conical Ribbon Parachutes During Inflation

Author : H. G. Heinrich
Publisher :
ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (113 download)

Book Synopsis Pressure and Canopy Profile Data of 20° Conical Ribbon Parachutes During Inflation by : H. G. Heinrich

Download or read book Pressure and Canopy Profile Data of 20° Conical Ribbon Parachutes During Inflation written by H. G. Heinrich and published by . This book was released on 1977 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sandia Laboratories, Albuquerque, N.M., established wind tunnel data of 3 ft ribbon parachute models concerning canopy profiles, drag forces and pressure distribution during the period of inflation. The data were analyzed at the University of Minnesota and resulted in presentations of canopy profile coordinates, drag areas and pressure distributions versus time. Pressure integration about the canopy surfaces as given by the established coordinates provided calculated areas which agreed satisfactorily with measured drag areas. Also, radial force coefficients of the various configurations were established. The results of this study are intended to serve as background information for related investigations such as studies concerning parachute dynamics, stress analysis, etc.

Scientific and Technical Aerospace Reports

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Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)

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 1988 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Energy Research Abstracts

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Author :
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (3 download)

Book Synopsis Energy Research Abstracts by :

Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Parachute Recovery Systems

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Author : Theo W. Knacke
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.0/5 ( download)

Book Synopsis Parachute Recovery Systems by : Theo W. Knacke

Download or read book Parachute Recovery Systems written by Theo W. Knacke and published by . This book was released on 1992 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide recovery system engineers in government and industry with tools to evaluate, analyze, select, and design parachute recovery systems. These systems range from simple, one-parachute assemblies to multiple-parachute systems, and may include equipment for impact attenuation, flotation, location, retrieval, and disposition. All system aspects are discussed, including the need for parachute recovery, the selection of the most suitable recovery system concept, concept analysis, parachute performance, force and stress analysis, material selection, parachute assembly and component design, and manufacturing. Experienced recovery system engineers will find this publication useful as a technical reference book; recent college graduates will find it useful as a textbook for learning about parachutes and parachute recovery systems; and technicians with extensive practical experience will find it useful as an engineering textbook that includes a chapter on parachute- related aerodynamics. In this manual, emphasis is placed on aiding government employees in evaluating and supervising the design and application of parachute systems. The parachute recovery system uses aerodynamic drag to decelerate people and equipment moving in air from a higher velocity to a lower velocity and to a safe landing. This lower velocity is known as rate of descent, landing velocity, or impact velocity, and is determined by the following requirements: (1) landing personnel uninjured and ready for action, (2) landing equipment and air vehicles undamaged and ready for use or refurbishment, and (3) impacting ordnance at a preselected angle and velocity.

Recovery System Design Guide

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Author : E. G. Ewing
Publisher :
ISBN 13 :
Total Pages : 502 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Recovery System Design Guide by : E. G. Ewing

Download or read book Recovery System Design Guide written by E. G. Ewing and published by . This book was released on 1979 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document serves as the third revision of the USAF Parachute Handbook which was first published in 1951. The data and information represent the current state of the art relative to recovery system design and development. The initial chapters describe representative recovery applications, components, subsystems, material, manufacture and testing. The final chapters provide empirical data and analytical methods useful for predicting performance and presenting a definitive design of selected components into a reliable recovery system.

Studies of Aerodynamics, Dynamics, and Stress Analysis of Ribbon Parachutes

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Author : Sandia Corporation
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (79 download)

Book Synopsis Studies of Aerodynamics, Dynamics, and Stress Analysis of Ribbon Parachutes by : Sandia Corporation

Download or read book Studies of Aerodynamics, Dynamics, and Stress Analysis of Ribbon Parachutes written by Sandia Corporation and published by . This book was released on 1976 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following report describes the continuation of wind tunnel data evaluation as shown in Progress Reports 3 through 14 under Sandia Coropration Contract 63-2241 amd 02-4022, Ref 1 to 13. The data presented in this report are related to disreefing tests of a conical ribbon parachute with 140° included angle, concentric rings, and 25% geometric porosity. The data concerning the canopy profile and pressure distributions will be presented in chronological order starting at the time of disreefing and proceeding through inflation at various time intervals until steady state conditions for the fully inflated parachute are reached. The recorded and derived data recorded and derived data are used to obtain-force time histories which can be compared with a measured force-time recording. Also, so called radial force coefficients are derived which are based on the established canopy profiles and the related pressure data.

Government Reports Annual Index

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Author :
Publisher :
ISBN 13 :
Total Pages : 1610 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Government Reports Annual Index by :

Download or read book Government Reports Annual Index written by and published by . This book was released on 1978 with total page 1610 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.

Investigation of the Characteristics of 6-foot Drogue-stabilization Ribbon Parachutes at High Altitudes and Low Supersonic Speeds

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Author : Clinton T. Johnson
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (317 download)

Book Synopsis Investigation of the Characteristics of 6-foot Drogue-stabilization Ribbon Parachutes at High Altitudes and Low Supersonic Speeds by : Clinton T. Johnson

Download or read book Investigation of the Characteristics of 6-foot Drogue-stabilization Ribbon Parachutes at High Altitudes and Low Supersonic Speeds written by Clinton T. Johnson and published by . This book was released on 1960 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance data are presented for two types of ribbon parachutes. The parachutes were forcibly deployed from an air-launched test vehicle at altitudes from 55,000 feet to 70,000 feet and at Mach numbers between 0.92 and 1.52. Opening shock, steady-state drag performance, and canopy-porosity effects are evaluated with respect to Mach number and dynamic pressure. The conical canopy design appears to function far better than the flat canopy at supersonic deployment speeds. The relatively high-porosity conical design improves the parachute stability, with the added benefit of a low opening shock. The drag efficiency of the conical canopy is equivalent to that of the flat canopy having 50-percent-lower porosity. Riser elasticity and length also appear to be important parameters affecting the parachute stability. Reducing the weight of the test vehicle by a factor of one-third had a negligible effect on the stability and drag characteristics of the parachute.

A Theoretical Analysis of the Aerodynamic and Structural Forces Associated with a Ribbon Parachute Canopy in Steady Descent

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Author : Kenneth Kenichiro Muramoto
Publisher :
ISBN 13 :
Total Pages : 636 pages
Book Rating : 4.:/5 (319 download)

Book Synopsis A Theoretical Analysis of the Aerodynamic and Structural Forces Associated with a Ribbon Parachute Canopy in Steady Descent by : Kenneth Kenichiro Muramoto

Download or read book A Theoretical Analysis of the Aerodynamic and Structural Forces Associated with a Ribbon Parachute Canopy in Steady Descent written by Kenneth Kenichiro Muramoto and published by . This book was released on 1983 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Astronautics & Aeronautics

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ISBN 13 :
Total Pages : 634 pages
Book Rating : 4.X/5 (1 download)

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Download or read book Astronautics & Aeronautics written by and published by . This book was released on 1976 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Scientific and Technical Reports

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Author : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 1440 pages
Book Rating : 4.F/5 ( download)

Book Synopsis NASA Scientific and Technical Reports by : United States. National Aeronautics and Space Administration Scientific and Technical Information Division

Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1966 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Collection of Technical Papers

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Publisher :
ISBN 13 :
Total Pages : 542 pages
Book Rating : 4.0/5 ( download)

Book Synopsis A Collection of Technical Papers by :

Download or read book A Collection of Technical Papers written by and published by . This book was released on 1975 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Selected Listing of NASA Scientific and Technical Reports for ...

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Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 1680 pages
Book Rating : 4.E/5 ( download)

Book Synopsis A Selected Listing of NASA Scientific and Technical Reports for ... by : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division

Download or read book A Selected Listing of NASA Scientific and Technical Reports for ... written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1965 with total page 1680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Experiments on the Thermal Performance of Ribbon Parachutes

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Author : C. J. Scott
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Experiments on the Thermal Performance of Ribbon Parachutes by : C. J. Scott

Download or read book Experiments on the Thermal Performance of Ribbon Parachutes written by C. J. Scott and published by . This book was released on 1965 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental heat transfer studies were conducted on full scale ribbons of flat circular type parachutes having a geometric porosity of 20.5 percent. A pressurized subsonic wind tunnel served as the flow facility. The average approach flow velocity was 134 feet per second. The measurements were made in the Reynolds number range of one million to ten million, where the Reynolds number is based on the ribbon width of 2.1 inches and on the velocity and temperature of the flow in the slots between the ribbons. The pressure ratio applied to the ribbon was varied from 1.4 to 26.3. Using a transient energy balance, local and average heat transfer data were obtained and compared with available analyses.

Design and Testing of a 20-foot-diameter Ribbon Parachute for Deployment at High Dynamic Pressures

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Author : M. T. Kane
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (696 download)

Book Synopsis Design and Testing of a 20-foot-diameter Ribbon Parachute for Deployment at High Dynamic Pressures by : M. T. Kane

Download or read book Design and Testing of a 20-foot-diameter Ribbon Parachute for Deployment at High Dynamic Pressures written by M. T. Kane and published by . This book was released on 1966 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nine tests were conducted in which a 20-foot-diameter ribbon parachute was deployed at dynamic pressures of 1710 to 4290 psf. The test data are analyzed, and the test parachute's design specifications are given. The parachute is structurally adequate to retard a 1100-pound payload from a Mach 2.2 deployment at up to 4300 psf.

The Shock and Vibration Bulletin

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Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (89 download)

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Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1982-05 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: