Download or read book Spur Gears Optimal Geometry Methods for Generation and Tooth Contact Analysis TCA Program written by Faydor L. Litvin and published by . This book was released on 1988 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this report covers: (i) development of optimal geometry for crowned spur gears; (ii) methods for their generation; and (iii) tooth contact analysis (TCA) computer programs for the analysis of meshing and bearing contact of the crowned spur gears. The developed method for synthesis is used for the determination of the optimal geometry for crowned pinion surface and is directed to reduce the sensitivity of the gears to misalignment, localize the bearing contact, and guarantee the favorable shape and low level of the transmission errors. A new method for the generation of the crowned pinion surface has been proposed. This method is based on application of the tool with a surface of revolution that slightly deviates from a regular cone surface. The tool can be used as a grinding wheel or as a shaver. The crowned pinion surface can be also generated by a generating plane whose motion is provided by an automatic grinding machine controlled by a computer. The TCA program simulates the meshing and bearing contact of the misaligned gears. The transmission errors are also determined. Keywords: Spur gears; Gears; Tooth contact analysis; Crowned spur gears. (jes).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Topology of Modified Helical Gears and Tooth Contact Analysis TCA Program written by Faydor L. Litvin and published by . This book was released on 1989 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of ths report covers: (i) development of optimal geometry for crowned helical gears; (ii) method for their generation; (iii) tooth contact analysis (TCA) computer programs for the analysis of meshing and bearing contact and guarantee the favorable shape and low level of the transmission errors. Two new methods for generation of the crowned helical pinion surface have been proposed. One is based on application of the tool with a surface of revolution that slightly deviates from a regular cone surface. The tool can be used as a grinding wheel or as a shaver. The other is based on crowning pinion tooth surface with predesigned transmission errors. The pinion tooth surface can be generated by a computer controlled automatic grinding machine. The TCA program simulates the meshing and bearing contract of misaligned gears. The transmission errors are also determined. Keywords: Helical gears; Crowned gears; Gear geometry; Tooth contact analysis. (JES).
Download or read book Topology of Modified Helical Gears and Tooth Contact Analysis Tca Program written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this report covers: (1) development of optimal geometries for crowned helical gears; (2) a method for their generation; (3) tooth contact analysis (TCA) computer programs for the analysis of meshing and bearing contact of the crowned helical gears; and (4) modelling and simulation of gear shaft deflection. The developed method for synthesis was used to determine the optimal geometry for a crowned helical pinion surface and was directed to localize the bearing contact and guarantee favorable shape and a low level of transmission errors. Two new methods for generation of the crowned helical pinion surface are proposed. One is based on the application of a tool with a surface of revolution that slightly deviates from a regular cone surface. The tool can be used as a grinding wheel or as a shaver. The other is based on a crowning pinion tooth surface with predesigned transmission errors. The pinion tooth surface can be generated by a computer-controlled automatic grinding machine. The TCA program simulates the meshing and bearing contact of the misaligned gears. The transmission errors are also determined. The gear shaft deformation was modelled and investigated. It was found that the deflection of gear shafts has the same effect as gear misalignment. Litvin, Faydor L. and Zhang, Jiao Unspecified Center COMPUTERIZED SIMULATION; GEAR TEETH; GEARS; MISALIGNMENT; APPLICATIONS PROGRAMS (COMPUTERS); CONTACT LOADS; COORDINATES; DEFORMATION; MATHEMATICAL MODELS; NUMERICAL ANALYSIS; SHAFTS (MACHINE ELEMENTS)...
Download or read book The Art of Gear Fabrication written by Prem H. Daryani and published by Industrial Press Inc.. This book was released on 2001 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides beginners with sufficient information to independently process six typical gears step by step. Presents model numbers, capacity and addresses of gear machinery manufacturers and suppliers at the end of each process description. Offers gear designers practical and useful hints on reducing fabricating costs. Contains useful tables from commercial catalogs, including cross-references of different U.S. standards and American stainless steel materials with equivalent German, British, French and Italian materials. Discusses heat treatment in an easy-to-understand manner.
Download or read book Theory and Practice of Gearing and Transmissions written by Veniamin Goldfarb and published by Springer. This book was released on 2015-08-26 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together papers from all spheres of mechanical engineering related to gears and transmissions, from fundamentals to advanced applications, from academic results in numerical and experimental research, to new approaches to gear design and aspects of their optimization synthesis and to the latest developments in manufacturing. Furthermore, this volume honours the work of Faydor L. Litvin on the 100th anniversary of this birth. He is acknowledged as the founder of the modern theory of gearing. An exhaustive list of his contributions and achievements and a biography are included.
Download or read book Spur Gears written by Faydor L. Litvin and published by . This book was released on 1988 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computerized Generation and Simulation of Meshing of Modified Spur and Helical Gears Manufactured by Shaving written by and published by . This book was released on 2001 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modification of geometry of spur and helical gears with parallel axes and helical gears with crossed axes is proposed. The finishing process of gear generation is shaving. The purposes of modification of the gear geometry are to localize and stabilize the bearing contact, and to reduce noise and vibration. The goals mentioned above are achieved by using profile crowning and plunging the shaver by a prescribed motion during pinion generation. The pinion becomes double crowned. The gear member is generated as a conventional involute gear. A tooth contact analysis (TCA) program for simulation of meshing and contact was developed and the analysis is illustrated with TCA results for spur and helical gears.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Download or read book Proceedings of the ASME Design Engineering Technical Conferences written by and published by . This book was released on 2003 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Topology of Modified Helical Gears and Tooth Contact Analysis TCA Program written by Faydor L. Litvin and published by . This book was released on 1989 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of ths report covers: (i) development of optimal geometry for crowned helical gears; (ii) method for their generation; (iii) tooth contact analysis (TCA) computer programs for the analysis of meshing and bearing contact and guarantee the favorable shape and low level of the transmission errors. Two new methods for generation of the crowned helical pinion surface have been proposed. One is based on application of the tool with a surface of revolution that slightly deviates from a regular cone surface. The tool can be used as a grinding wheel or as a shaver. The other is based on crowning pinion tooth surface with predesigned transmission errors. The pinion tooth surface can be generated by a computer controlled automatic grinding machine. The TCA program simulates the meshing and bearing contract of misaligned gears. The transmission errors are also determined. Keywords: Helical gears; Crowned gears; Gear geometry; Tooth contact analysis. (JES).
Download or read book Government Reports Annual Index written by and published by . This book was released on 1988 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Aeronautical Journal written by and published by . This book was released on 1988 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Mechanisms Transmissions and Automation in Design written by and published by . This book was released on 1988 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the International Power Transmission and Gearing Conference written by and published by . This book was released on 1992 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 1989 International Power Transmission and Gearing Conference written by and published by . This book was released on 1989 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
