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Download or read book Improvement of Helicopter Crashworthiness Using Airbags written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dennis F. Shanahan
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (359 download)
Download or read book Basic Principles of Helicopter Crashworthiness written by Dennis F. Shanahan and published by . This book was released on 1993 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. General Accounting Office
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book In-flight Escape Systems for Helicopters Should be Developed to Prevent Fatalities written by United States. General Accounting Office and published by . This book was released on 1973 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (228 download)
Download or read book Army Helicopter Crashworthiness written by and published by . This book was released on 1983 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses the evolution of crash survival design criteria, its influence on the formulation of a US Army military standard for rotary-wing aircraft crashworthiness, and its application to current and new-generation Army helicopters. Emphasis is given to the need for a total systems' approach in design for crashworthiness and the necessity for considering crashworthiness early in the design phase of a new aviation weapon systems development effort. The actual application of crashworthiness to Army helicopters is presented with statistics that show dramatic reductions in fatalities and injuries with implementation of a crashworthy fuel system. Current and planned US Army R & D to improve crashworthiness technology is discussed, including full-scale crash testing, human tolerance definition, improved energy absorbers, crew restraint systems, and crash impact characteristics of composite helicopter structures. Applicability of the work within Army helicopter crashworthiness to commercial/ civil helicopters is shown. The cost effective aspects of designing helicopters to be more crash survivable are also discussed.
Author : Brian L. Carnell
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (951 download)
Download or read book Crashworthiness Design Features for Advanced Utility Helicopters written by Brian L. Carnell and published by . This book was released on 1975 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 60s, the Eustis Directorate of the U.S. Army Air Mobility Research and Development Laboratory contracted with the Aviation Crash Injury Research (AvCIR) Group of the Flight Safety Foundation to define the Army aircraft crash environment and development design concepts and criteria to reduce injuries. For this study, the group investigated many accidents involving U.S. Army utility helicopters, conducted full-scale aircraft crash tests, evaluated aircraft crashworthiness, and developed crashworthiness design concepts. The examination showed that injuries, fatalities, and aircraft damage could have been reduced by improved design. The results were presented in USAAMRDL Technical Report 71-22, "Crash Survival Design Guide," which defines the hazards encountered in typical helicopter crashes. That document was used from the outset in design of the U.S. Army/Sikorsky UH-60A advanced utility helicopter with the objective of achieving an exceptional level of crashworthiness. To give some indication of the effectiveness of the crashworthy design achieved, we considered a fleet of 1,000 aircraft operating an average of 900 hours per aircraft per year. Our very conservative estimate shows that in 10 years of operation, 80 serious injuries could have been prevented and 200 lives saved. The crashworthy fuel system and crashworthy energy-absorbing landing gear and structure could save $58 million in material costs - $22 million saved by the fuel system and $36 million saved by the landing gear and structure. In addition, savings in personnel training and replacement would bring the estimated total savings to $78 million.
Author : Gil Wittlin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (172 download)
Download or read book Experimental Program for the Development of Improved Helicopter Structural Crashworthiness Analytical and Design Techniques written by Gil Wittlin and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. E. Kimball
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (173 download)
Download or read book Energy-absorbing Materials for Improving Helicopter Crashworthiness. Final Report written by C. E. Kimball and published by . This book was released on 1976 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. Saczalski
Publisher :
ISBN 13 :
Total Pages : 724 pages
Book Rating : 4.3/5 (91 download)
Download or read book Aircraft Crashworthiness written by K. Saczalski and published by . This book was released on 1975 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jorge A.C. Ambrósio
Publisher : Springer Science & Business Media
ISBN 13 : 9401157960
Total Pages : 624 pages
Book Rating : 4.4/5 (11 download)
Download or read book Crashworthiness of Transportation Systems: Structural Impact and Occupant Protection written by Jorge A.C. Ambrósio and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic treatment of current crashworthiness practice in the automotive, railroad and aircraft industries. Structural, exterior and interior design, occupant biomechanics, seat and restraint systems are dealt with, taking account of statistical data, current regulations and state-of-the-art design tool capabilities. Occupant kinematics and biomechanics are reviewed, leading to a basic understanding of human tolerance to impact and of the use of anthropometric test dummies and mathematical modelling techniques. Different types of restraining systems are described in terms of impact biomechanics. The material and structural behaviour of vehicle components is discussed in relation to crash testing. A variety of commonly used techniques for simulating occupants and structures are presented, in particular the use of multibody dynamics, finite element methods and simplified macro-elements, in the context of design tools of increasing complexity, which can be used to model both vehicles and occupants. Audience: An excellent reference for researchers, engineers, students and all other professionals involved in crashworthiness work.
Author :
Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.F/5 ( download)
Download or read book Army Research and Development written by and published by . This book was released on 1973 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (227 download)
Download or read book Experimental Program for the Development of Improved Helicopter Structural Crashworthiness Analytical and Design Techniques. Volume 1. Computerized Unsymmetrical Mathematical Simulation and Experimental Verification for Helicopter Crashworthiness in which Multidirectional Impact Forces are Present written by and published by . This book was released on 1973 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a four-phase study to develop helicopter structural crashworthiness analytical and design techniques are presented. The study consisted of the development of a computer program (KRASH) and the verification of a mathematical model to predict the dynamic response during a survivable accident in which combined vertical and lateral impact velocities are present. Included in the study were a literature survey and evaluation, a detailed analysis of 32 accident cases, a drop test of a UH-1H helicopter with ground impact conditions of 23 fps vertical velocity and 18.6 fps lateral velocity, and parameter studies. It is concluded that program KRASH is capable of accurately predicting the dynamic responses during a multi-directional accident and that the program is a valuable tool with which to perform design tradeoff studies.
Author : C. E. Kimball
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (227 download)
Download or read book Energy-Absorbing Materials for Improving Helicopter Crashworthiness written by C. E. Kimball and published by . This book was released on 1976 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the program was to identify materials which were not only suitable for structural components but were capable of absorbing energy at acceptable deceleration levels in a crash environment. After review of available materials for their energy absorption capability, five candidate materials were selected and a test program initiated to demonstrate their attenuation properties. Those selected were three types of honeycomb, a rigid foam, and a flexible foam.
Author : John S. Crowley
Publisher :
ISBN 13 : 9781423533757
Total Pages : 206 pages
Book Rating : 4.5/5 (337 download)
Download or read book Proceedings of the Technical Cooperative Program Workshop written by John S. Crowley and published by . This book was released on 2000-08-01 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aviation accidents frequently result in death or injury--occupant flail with resultant head injury is the leading cause of fatality and serious injury in Army helicopter accidents. Inflatable restraints are a proven safety technology in the automotive world, and airbags are being developed for Army helicopters as well. Other applications in transport safety such as inflatable motorcycle helmet collars and inflatable restraint harnesses may be useful in aviation--research is underway in exciting novel areas. There are many questions to be answered before airbags and similar systems can be fielded in aircraft. Hot issues range from the unique characteristics of a helicopter crash pulse to the effects of unintended airbag deployment on injury and aircraft control. Tools useful in this research include computer modeling, anthropometric test devices, cadaver research, and flight simulation/testing. In December 1999, a workshop entitled "Inflatable Restraints in Aviation was held in Huntsville, Alabama, that brought together a multidisciplinary group of world experts in inflatable restraint technology and applications. The workshop was co-sponsored by the U.S. Army Aeromedical Research Laboratory, and The Technical Cooperation Program (TTCP), Subgroup U, Technical Panel 7 (Human Factors in Aviation). The emphasis of the meeting was on the potential need for inflatable restraints in aviation, and the special integration and safety problems unique to the aviation environment. The workshop was very well attended, and the scientific presentations excellent.
Author :
Publisher :
ISBN 13 :
Total Pages : 818 pages
Book Rating : 4.:/5 (319 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gary C. Robb
Publisher :
ISBN 13 : 9781936360949
Total Pages : 0 pages
Book Rating : 4.3/5 (69 download)
Download or read book Helicopter Crash Litigation Third Edition written by Gary C. Robb and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Much has happened as affects helicopter crash litigation in the intervening eight years since the publication of the Second Edition of this book in 2015. Highlights of recent developments covered in this Third Edition include: 1. The U.S. Supreme Court clarified the jurisdictional landscape for the better in Ford Motor Co. v. Montana Eighth Judicial District by emphatically rejecting the defendant manufacturer's claim that the litigation must "arise out of" the defendant's contacts with the forum state and re-affirming the stream of commerce doctrine. This unanimous Supreme Court decision is arguably the most significant development in helicopter crash litigation as it substantially minimizes the prospect of culpable manufacturing defendants' securing dismissal on jurisdictional grounds. 2. The "Helicopter Fuel System Safety" Amendment was enacted to require that all helicopters manufactured and delivered for use in the United States after April 5, 2020 must be equipped with crash resistant fuel systems (CRFS). There is no single greater recent safety improvement within the entire helicopter industry than the addition of CRFS to helicopters. 3. The Federal Officer Removal Statute was rejected as a basis for any aircraft manufacturing defendant's removal of a design defect case to federal court. The Ninth Circuit's decision in Riggs v. Airbus Helicopters, Inc. -- which the author briefed and argued - - laid to rest any notion that aircraft manufacturers are "agents of the FAA" as Airbus Helicopters strained to argue. The defendant sought a writ of certiorari before the U.S. Supreme Court which was summarily denied. 4. The global pandemic of 2020-21 engendered the widespread and continued use of virtual or remote depositions in civil discovery and helicopter crash litigation was no exception. 5. The universal social and business usage of electronic media has led to a corresponding explosion in the use of electronically-stored information (ESI) discovery. So-called e-discovery encompasses all manner of electronic communication including e-mails, social media, cell phone data and e- storage, all of which is proving fertile discovery grounds in helicopter crash litigation In addition to addressing in detail the foregoing developments, this Third Edition: Updates and "modernizes" Chapters 1 and 2 dealing with helicopter operation and common failure modes. Updates all of the legal, statutory and regulatory framework applicable to helicopter crash litigation. Continues to expand and (hopefully) upgrade the actual practice techniques and methods recommended for handling helicopter crash litigation including new material on jury selection, opening statement and closing argument. Incorporates material from recent helicopter crash cases handled by the author including the Calabasas, California helicopter crash that caused the deaths of NBA legend Kobe Bryant and his daughter Gianna; the Frisco, Colorado crash that resulted in horrific 90% total body burn injuries to flight nurse David Repsher because of the lack of a crash-resistant fuel system (CRFS); and the Kentucky air ambulance helicopter crash that killed three crew members caused by a defectively manufactured main rotor blade. Updates helicopter accident statistics and reviews ongoing efforts for industry safety improvements. As with the First and Second Editions, the greatest outcome of all would be to render the need for helicopter crash litigation much more infrequent if not all together unnecessary"--
Author :
Publisher :
ISBN 13 :
Total Pages : 251 pages
Book Rating : 4.:/5 (227 download)
Download or read book Experimental Program for the Development of Improved Helicopter Structural Crashworthiness Analytical and Design Techniques. Volume 2. Test Data and Description of an Unsymmetrical Crash Analysis Computer Program, Including a User's Guide and Sample Case written by and published by . This book was released on 1973 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2 contains supporting data for the details presented in Volume I. The report contains abstracts for the 32 technical reports reviewed during the program. Included in the literature survey section is a matrix categorization of the reports by subject and applicable areas of interest. A brief description is presented on STAGS, the LMSC computer program used to perform the analysis of the P2V-4 fuselage bumper. A comprehensive description of program KRASH is presented, including the theory, initial conditions, the User's Guide, and a sample problem. Twenty-six channels of recorded test data and film data are presented in another section. Additional analytical data are presented in the last section.
Author : J. W. Turnbow
Publisher :
ISBN 13 :
Total Pages : 75 pages
Book Rating : 4.:/5 (227 download)
Download or read book Full-scale Dynamic Crash Test of a Small Observation Type Helicopter written by J. W. Turnbow and published by . This book was released on 1966 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the results of experimental crash tests of two fully instrumented OH-4A helicopters. The first of these tests, conducted as a crane drop, illustrated the energy absorption capability of the tapered-wall landing gear strut. It further showed that high accelerations may be induced in occupants under level impact conditions of the aircraft in which the design sinking speed for the gear is exceeded. The latter of these tests, conducted from droned flight, indicated that rotor blade impacts with obstacles induced loads into the mast-transmission system which were sufficient to fail the structure at the transmission supports. The crashworthiness of the OH-4A showed an improvement over previous aircraft tested; however, further improvements are definitely possible. This report recommends the means of such improvements and proposes their implementation through appropriate study and test programs. (Author).
