Download or read book OH 58 Helicopter Transmission Failure Analysis written by and published by . This book was released on 1976 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The OH-58 main transmission gearbox was run at varying output torques, speeds, and oil cooling rates. The gearbox was subsequently run to destruction by draining the oil from the gearbox while operating at a speed of 6200 rpm and 36 000 inch-pounds output torque. Primary cause of gearbox failure was overheating and melting of the planet bearing aluminum cages. Complete failure of the gearbox occurred in 28 1/2 minutes after the oil pressure dropped to zero. The gearbox air/oil cooler has sufficient cooling capacity margin for hot day takeoff conditions at a 117 percent power rating. The alternating and maximum stresses in the gearbox top case were approximately 10 percent of the endurance limit for the material. Deflection of the bevel gear at 67 000 inch-pounds output torque indicate a marginal stiffness for the bevel gear supporting system.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Failure Analysis of OH 58 Kiowa Warrior Drive Gear Shafts written by and published by . This book was released on 2006 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 15-hp spare drive gear from a 250-C30/R3 engine on an OH-58 Kiowa Warrior failed in service, causing loss of AC power. The failed gear, all recovered teeth, and the driving pinion were sent to the U.S. Army Research Laboratory for investigation. This investigation focused on determining the mode of failure and any possible metallurgical or manufacturing contribution to this failure. Analysis included optical and scanning electron microscopy, chemical analysis, and measurements of hardness and surface finish.

Download or read book NASA Technical Paper written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CH 46 OH 58 Transmission Stress Wave Analysis written by and published by . This book was released on 1990 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the results of testing on two types of helicopter transmissions. The analysis of high frequency stress wave data indicates various types of problems that were detected with gears and bearings in both CH-46 and OH-58 gear boxes. The types of discrepancies detected include shaft misalignment as a function of flight loads; planet gear/bearing assembly damage, sun gear damage, wear-in phenomena, and the presence of particulate debris in the lubrication system.

Download or read book Vibration Characteristics of OH 58A Helicopter Main Rotor Transmission written by David G. Lewicki and published by . This book was released on 1987 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fault Detection on a Full scale OH 58 A C Helicopter Transmission written by Adrian A. Hood and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Full scale Transmission Testing Procedure to Evaluate Advanced Lubricants written by David G. Lewicki and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental tests were performed on the OH-58A helicopter main-rotor transmission in the NASA Lewis 500-hp Helicopter Transmission Test Stand. The testing was part of a joint Navy/NASA/Army lubrication program to develop a separate lubricant for gearboxes that would improve life and load-carrying capacity. The goal of the experiments was to develop a testing procedure using a MIL-L-23699 base reference oil to fail certain transmission components, and then to run identical tests with improved lubricants and demonstrate improved performance. The tests were directed at failing components that have given the Navy problems because of marginal lubrication. These failures included mast-shaft bearing micropitting, sun gear and planet bearing fatigue, and spiral bevel gear scoring. More than 900 hr of total run time were accumulated for these tests. Some success was achieved in developing a testing procedure to produce sun gear and planet bearing fatigue failures. Only marginal success was achieved in producing mast-shaft bearing micropitting and spiral bevel gear scoring.

Download or read book Bell OH 58 A C D Kiowa Helicopter Maintenance Repair And Parts Manuals written by and published by Jeffrey Frank Jones. This book was released on with total page 17086 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sample of the manuals contained: TM55-2840-256-23 Aviation unit and aviation intermediate maintenance for engine, aircraft, turbo shaft (nsn 2840-01-131-3350) (t703-ad-700) (2840-01-333-2064) (t703-ad-700a) (2840-01-391-4397) TM1-1427-779-23P Aviation unit and intermediate maintenance repair parts and Special tools lists (including depot maintenance repair parts and special tools for OH-58d controls/displays system (nsn 1260-01-165-3959) TM1-1520-248-PPM OH-58d Kiowa Warrior helicopter progressive phase maintenance inspection checklist and preventive maintenance services TB 1-1520-248-20-21 Tailboom visual inspection on all OH-58d and OH-58d(i) Kiowa Warrior helicopters TM55-1520-248-23-8-1 Aviation unit and intermediate maintenance manual for Army model OH-58d Kiowa Warrior helicopter TM55-1520-248-23-8-2 Aviation unit and intermediate maintenance manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-S Preparation for shipment of Army model OH-58d and OH-58d(i) Kiowa Warrior Helicopters TM1-1520-248-23P Aviation unit and intermediate maintenance repair parts and Special tools list (including depot maintenance repair parts and Special tools) for Kiowa Warrior helicopter, observation OH-58d (nsn 1520-01-125-5476) (eic: roc) TB 1-1520-248-20-29 Installation and removal instructions for the tremble trimpack global positioning system (gps) special mission kits on OH-58d Kiowa Warrior helicopters TB 1-1520-248-20-31 One time and recurring visual inspection of tailboom and relate restriction on forward indicated airspeed on all OH-58d Kiowa Warrior helicopter TB 1-1520-248-20-36 Changes to tailboom inspection interval and rescinding of flight restrictions on all OH-58d Kiowa Warrior helicopters TM1-2840-256-23P Aviation unit and aviation intermediate maintenance repair parts and Special tools list (including depot maintenance repair parts) for engine, aircraft, turbo shaft (nsn 2840-01-131-3350) (t703-ad-700) (2840-01-333-2064) (t703-ad-700a) (2840-01-391-4397) (t703-ad-700b) TB 1-1520-248-23-1 Announcement of approval and release of nondestructive test equipment inspection procedure Manual FOR TM1-1520-254-23, technicalman aviation unit maintenance (avum) and aviation intermediate maintenance (avim) Manual nondestructive inspection procedures for OH-58 Kiowa Warrior Helicopter series TB 1-1520-248-20-40 Inspection and cleaning intervals for the countermeasures set an/alq-144 ir jammer transmitter on OH-58d Kiowa Warrior Helicopters TM1-1520-266-23 Aviation unit maintenance (avum) and aviation intermediate main (avim) Manual nondestructive inspection procedures for OH-58d Kiowa Warrior Helicopter series TM1-1427-779-23 Aviation unit and aviation intermediate maintenance Manual for control/display subsystem (cds) part number 8521308-902 (nsn 1260-01-432-8523) and part number 8521308-903 (1260-01-432 TM 1-1520-248-CL Technical manual, operators and crewmembers checklist, Army OH-58d Kiowa Warrior helicopter TM1-1520-248-MTF Maintenance test flight, Army OH-58d Kiowa Warrior helicopter TM55-1520-248-23-8-1 Aviation unit and intermediate maintenance manual Army model OH-58d Kiowa Warrior helicopter TM55-1520-248-23-8-2 Aviation unit and intermediate maintenance manual Army model OH-58d Kiowa Warrior helicopter TM55-1520-248-23-9 Aviation unit and intermediate maintenance manual, Army model OH Kiowa Warrior helicopter TB 1-1520-248-20-64 Revision to false engine out warning all OH-58d aircraft (tb 1-1520-248-20-52) TM55-1520-248-23-9 Aviation unit and intermediate maintenance manual, Amy model OH Kiowa Warrior helicopter TB 1-1520-248-30-02 Repair of engine cowling exhaust duct on OH-58d Kiowa Warrior Helicopters TB 1-1520-248-20-62 One time inspection for certain mast mounted sight (mms) upper shroud for discrepant clamps all OH-58d Kiowa Warrior Helicopters TB 1-1520-248-20-60 One time and recurring inspection of cartridge type fuel boost pump assembly on all OH-58d Kiowa Warrior Helicopters TB 1-1520-248-20-61 One time inspection of copilot cyclic boot shield assembly all OH-58d Kiowa Warrior Helicopters TB 1-2840-263-20-03 Inspection of first stage nozzle shield on all 250-c30r/3 on OH-58d and h-6 aircraft TB 1-2840-256-20-05 Inspection of first stage nozzle shield all t703-ad-700/700a engines on OH-58d aircraft TB 1-1520-248-20-42 Instructions for replacing OH-58d Kiowa Warrior helicopter, t703-ad-700b engine with t703-ad-700a engine TB 1-1520-248-20-44 Revision to tail boom inspection interval on all OH-58d Kiowa Warrior helicopter TB 1-2840-256-20-03 Retirement change and time change limits update for t703-ad-700 700b engines on all OH-58d(i) Kiowa Warrior helicopters TM1-1520-248-MTF Maintenance test flight, Army OH-58d Kiowa Warrior Helicopter TM1-1520-248-10 Operators manual Army OH-58d Kiowa Warrior Helicopter TM1-1520-248-CL Technical manual, operators and crewmembers checklist, Army OH-58d Kiowa Warrior Helicopter TB 1-1520-248-20-47 One time inspection and repair of support installation, oil cooler, p/n 406-030-117-125/129, on OH-58d Kiowa Warrior Helicopter TM1-1520-248-23-7 Technical manual aviation unit and intermediate maintenance Manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-23-6 Aviation unit and intermediate maintenance manual for Army model for OH-58d Kiowa Warrior Helicopter TM1-1520-248-23-5 Aviation unit and intermediate maintenance manual for Army model for OH-58d Kiowa Warrior Helicopter TM1-1520-248-23-4 Aviation unit and intermediate maintenance manual for Army mode OH-58d Kiowa Warrior Helicopters TM1-1520-248-23-3 Aviation unit and intermediate maintenance manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-23-2 Aviation unit and intermediate maintenance manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-23-1 Aviation unit and intermediate maintenance manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-T-1 Operational checks and maintenance action precise symptoms (maps) diagrams Manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-T-2 Operational checks and maintenance action precise symptoms (maps) diagrams Manual for Army model OH-58d Kiowa Warrior Helicopter TM1-1520-248-T-3 Operational checks and maintenance action precise symptoms (maps) diagrams Manual for Army model OH-58d Kiowa Warrior Helicopter TB 1-1520-248-20-48 Inspection of oil cooler support installation and oil cooler fan TB 1-2840-263-01 One time inspection and recurring inspection of new self sealing magnetic chip detectors OH-58d(r) Kiowa Warrior Helicopter engines TB 1-1520-248-20-52 Aviation Safety Action For All OH-58D Series Aircraft False Engine Out Warnings TB 1-1520-248-20-51 One time inspection for directional control tube chafing all OH-58d Kiowa Warrior Helicopters TB 1-1520-248-20-53 Maintenance mandatory hydraulic fluid sampling for all OH-58d Kiowa Warrior Helicopters TB 1-1520-248-20-54 One time inspection for incorrect fasteners in center post assembly all OH-58d aircraft TB 1-1520-248-20-55 Initial and recurring inspection of t703-ad-700b engine for specification power, compressor stall, and instability during power transients TB 1-1520-248-20-56 One time inspection for hydraulic relief valve p/n 206-076-036-101 on all OH-58d Kiowa Warrior Helicopters TB 1-2840-263-20-02 One time inspection of scroll assembly on 250-c30r/3 engine for OH-58d aircraft TB 1-2840-256-20-04 One time inspection of scroll assembly on t703-ad-700 and t703-ad-700a engines for OH-58d aircraft TB 1-1520-228-20-85 All OH-58 aircraft, one time inspection of magnetic brake TB 1-1520-248-20-58 Initial and recurring inspection of forward tail boom intercostal assembly and aft fuselage frame assembly TB 1-1520-248-20-59 One time inspection for discrepant bell Kiowa Warrior Helicopter textron parts all OH-58d aircraft TB 1-1520-248-20-63 Replacement of ma-6/8 crew seat inertia reel all OH-58d Kiowa Warrior Helicopters TB 1-1520-248-20-65 Inspection and overhaul interval change for engine to transmission driveshaft all OH-58d Kiowa Warrior Helicopters

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 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book System Health Management written by Stephen B. Johnson and published by John Wiley & Sons. This book was released on 2011-06-01 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: System Health Management: with Aerospace Applications provides the first complete reference text for System Health Management (SHM), the set of technologies and processes used to improve system dependability. Edited by a team of engineers and consultants with SHM design, development, and research experience from NASA, industry, and academia, each heading up sections in their own areas of expertise and co-coordinating contributions from leading experts, the book collates together in one text the state-of-the-art in SHM research, technology, and applications. It has been written primarily as a reference text for practitioners, for those in related disciplines, and for graduate students in aerospace or systems engineering. There are many technologies involved in SHM and no single person can be an expert in all aspects of the discipline.System Health Management: with Aerospace Applications provides an introduction to the major technologies, issues, and references in these disparate but related SHM areas. Since SHM has evolved most rapidly in aerospace, the various applications described in this book are taken primarily from the aerospace industry. However, the theories, techniques, and technologies discussed are applicable to many engineering disciplines and application areas. Readers will find sections on the basic theories and concepts of SHM, how it is applied in the system life cycle (architecture, design, verification and validation, etc.), the most important methods used (reliability, quality assurance, diagnostics, prognostics, etc.), and how SHM is applied in operations (commercial aircraft, launch operations, logistics, etc.), to subsystems (electrical power, structures, flight controls, etc.) and to system applications (robotic spacecraft, tactical missiles, rotorcraft, etc.).

Download or read book Paper written by and published by . This book was released on 1986 with total page 574 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 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1974 with total page 1570 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prognostics and Health Management of Electronics written by Michael G. Pecht and published by John Wiley & Sons. This book was released on 2008-09-11 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book on Prognostics and Health Management of Electronics Recently, the field of prognostics for electronic products has received increased attention due to the potential to provide early warning of system failures, forecast maintenance as needed, and reduce life cycle costs. In response to the subject's growing interest among industry, government, and academic professionals, this book provides a road map to the current challenges and opportunities for research and development in Prognostics and Health Management (PHM). The book begins with a review of PHM and the techniques being developed to enable a prognostics approach for electronic products and systems. building on this foundation, the book then presents the state of the art in sensor systems for in-situ health and usage monitoring. Next, it discusses the various models and algorithms that can be utilized in PHM. Finally, it concludes with a discussion of the opportunities in future research. Readers can use the information in this book to: Detect and isolate faults Reduce the occurrence of No Fault Found (NFF) Provide advanced warning of system failures Enable condition-based (predictive) maintenance Obtain knowledge of load history for future design, qualification, and root cause analysis Increase system availability through an extension of maintenance cycles and/or timely repair actions Subtract life cycle costs of equipment from reduction in inspection costs, down time, and inventory Prognostics and Health Management of Electronics is an indispensable reference for electrical engineers in manufacturing, systems maintenance, and management, as well as design engineers in all areas of electronics.

Download or read book Journal of Mechanisms Transmissions and Automation in Design written by and published by . This book was released on 1987 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Winter Annual Meeting written by American Society of Mechanical Engineers and published by . This book was released on 1982 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: