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Gear Crack Propagation Path Studies Guidelines For Ultra Safe Design
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Book Synopsis Gear Crack Propagation Path Studies: Guidelines for Ultra-Safe Design by :
Download or read book Gear Crack Propagation Path Studies: Guidelines for Ultra-Safe Design written by and published by . This book was released on 2001 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design guidelines have been established to prevent catastrophic rim fracture failure modes when considering gear tooth bending fatigue. Analysis was performed using the finite element method with principles of linear elastic fracture mechanics. Crack propagation paths were predicted for a variety of gear tooth and rim configurations. The effects of rim and web thicknesses, initial crack locations, and gear tooth geometry factors such as diametral pitch, number of teeth, pitch radius, and tooth pressure angle were considered. Design maps of tooth/rim fracture modes including effects of gear geometry, applied load, crack size, and material properties were developed. The occurrence of rim fractures significantly increased as the backup ratio (rim thickness divided by tooth height) decreased. The occurrence of rim fractures also increased as the initial crack location was moved down the root of the tooth. Increased rim and web compliance increased the occurrence of rim fractures. For gears with constant pitch radii, coarser-pitch teeth increased the occurrence of tooth fractures over rim fractures. Also, 250 pressure angle teeth had an increased occurrence of tooth fractures over rim fractures when compared to 200 pressure angle teeth. For gears with constant number of teeth or gears with constant diametral pitch, varying size had little or no effect on crack propagation paths.
Book Synopsis Three-Dimensional Gear Crack Propagation Studies by :
Download or read book Three-Dimensional Gear Crack Propagation Studies written by and published by . This book was released on 1998 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-dimensional crack growth simulation was performed on a split-tooth gear design using boundary element modeling and linear elastic fracture mechanics. Initial cracks in the fillet of the teeth produced stress intensity factors of greater magnitude (and thus, greater crack growth rates) than those in the root or groove areas of the teeth. Crack growth simulation was performed on a case study to evaluate crack propagation paths. Tooth fracture was predicted from the crack growth simulation for an initial crack in the tooth fillet region. Tooth loads on the uncracked mesh of the split-tooth design were up to five times greater than those on the cracked mesh if equal deflections of the cracked and uncracked teeth were considered. Predicted crack shapes as well as crack propagation life are presented based on calculated stress intensity factors, mixed-mode crack propagation trajectory theories, and fatigue crack growth theories.
Download or read book Research & Technology 2001 written by and published by DIANE Publishing. This book was released on with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis THREE-DIMENSIONAL GEAR CRACK PROPAGATION STUDIES... NASA/TM-1998-208827... MAR. 1, 1999 by : United States. National Aeronautics and Space Administration
Download or read book THREE-DIMENSIONAL GEAR CRACK PROPAGATION STUDIES... NASA/TM-1998-208827... MAR. 1, 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frattura ed Integrità Strutturale: Annals 2014 by : Luca Susmel
Download or read book Frattura ed Integrità Strutturale: Annals 2014 written by Luca Susmel and published by Gruppo Italiano Frattura. This book was released on 2014-09-12 with total page 1208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Engineering by : Murat Gokcek
Download or read book Mechanical Engineering written by Murat Gokcek and published by BoD – Books on Demand. This book was released on 2012-04-11 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book substantially offers the latest progresses about the important topics of the "Mechanical Engineering" to readers. It includes twenty-eight excellent studies prepared using state-of-art methodologies by professional researchers from different countries. The sections in the book comprise of the following titles: power transmission system, manufacturing processes and system analysis, thermo-fluid systems, simulations and computer applications, and new approaches in mechanical engineering education and organization systems.
Book Synopsis Damage Prognosis by : Daniel J. Inman
Download or read book Damage Prognosis written by Daniel J. Inman and published by John Wiley & Sons. This book was released on 2005-12-13 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Damage prognosis is a natural extension of damage detection and structural health monitoring and is forming a growing part of many businesses. This comprehensive volume presents a series of fundamental topics that define the new area of damage prognosis. Bringing together essential information in each of the basic technologies necessary to perform damage prognosis, it also reflects the highly interdisciplinary nature of the industry through the extensive referencing of each of the component disciplines. Taken from lectures given at the Pan American Advanced Studies Institute in Damage Prognosis sponsored by the US National Science Foundation in cooperation with Los Alamos National Laboratories, this book will be essential reading for anyone looking to get to grips with the fundamentals of damage prognosis. Presents the 'ground rules' for Damage Prognosis. Deals with interdisciplinary topics: rotating machines, aerospace structures, automotive components and civil structures. Covers essential technical material: equations, graphs and plots, tables and photographs. Offers additional material from the associated workshop on an active web site.
Book Synopsis Effect Of Rim Thickness On Gear Crack Propagation Path... NASA-TM-107229... Mar. 14, 1997 by : United States. National Aeronautics and Space Administration
Download or read book Effect Of Rim Thickness On Gear Crack Propagation Path... NASA-TM-107229... Mar. 14, 1997 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gear Crack Propagation Investigations by : David G. Lewicki
Download or read book Gear Crack Propagation Investigations written by David G. Lewicki and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Technology 2001 written by and published by . This book was released on 2002 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies Publisher : ISBN 13 : Total Pages :880 pages Book Rating :4.3/5 ( download)
Book Synopsis Departments of Veterans Affairs and Housing and Urban Development, and Independent Agencies Appropriations for 2000 by : United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies
Download or read book Departments of Veterans Affairs and Housing and Urban Development, and Independent Agencies Appropriations for 2000 written by United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies and published by . This book was released on 1999 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of the American Helicopter Society by : American Helicopter Society
Download or read book Journal of the American Helicopter Society written by American Helicopter Society and published by . This book was released on 2002 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Three-dimensional Simulations and Cohesive Modeling of Fatigue Crack Growth by : Ani Ural
Download or read book Advanced Three-dimensional Simulations and Cohesive Modeling of Fatigue Crack Growth written by Ani Ural and published by . This book was released on 2004 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Verti-flite written by and published by . This book was released on 2002 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stable Crack Propagation by : Walter J. Crichlow
Download or read book Stable Crack Propagation written by Walter J. Crichlow and published by . This book was released on 1969 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimation of Gear Crack Size Using Embedded Modeling and Prognosis of Gear Crack Propagation Using Fracture Mechanics by : Hyungdae Lee
Download or read book Estimation of Gear Crack Size Using Embedded Modeling and Prognosis of Gear Crack Propagation Using Fracture Mechanics written by Hyungdae Lee and published by . This book was released on 2002 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gear Materials, Properties, and Manufacture by : Joseph R. Davis
Download or read book Gear Materials, Properties, and Manufacture written by Joseph R. Davis and published by ASM International. This book was released on 2005 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: All of the critical technical aspects of gear materials technology are addressed in this new reference work. Gear Materials, Properties, and Manufacture is intended for gear metallurgists and materials specialists, manufacturing engineers, lubrication technologists, and analysts concerned with gear failures who seek a better understanding of gear performance and gear life. This volume complements other gear texts that emphasize the design, geometry, and theory of gears. The coverage begins with an overview of the various types of gears used, important gear terminology, applied stresses and strength requirements associated with gears, and lubrication and wear. This is followed by in-depth treatment of metallic (ferrous and nonferrous alloys) and plastic gear materials. Emphasis is on the properties of carburized steels, the material of choice for high-performance power transmission gearing.
