Download or read book Topology of Modified Helical Gears written by and published by . This book was released on 1991 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topology of several types of modified surfaces of helical gears are proposed. The modified surfaces allow absorption of linear or almost linear function of transmission errors caused by gear misalignment, and improvement of the contact of gear tooth surfaces. Principles and corresponding programs for computer aided simulation of meshing and contact of gears have been developed. The results of this investigation are illustrated with numerical examples.
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 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 The Financial Education Factor in Personal and Professional Development written by Digital World and published by Digital World. This book was released on 2024-09-06 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hello everyone! I'm excited to introduce you to the fascinating world of financial psychology. In this series, we'll explore how our emotions, beliefs, and behaviors influence our financial decisions. We'll see how this understanding can transform our relationship with money and help us achieve our goals. Financial psychology studies the relationship between the human mind and money. It explores how psychological factors such as emotions, perceptions, and beliefs influence our financial decisions. It combines concepts from psychology and economics to understand financial behavior. Financial psychology isn't just about numbers and graphs. It helps us understand why we sometimes make financial decisions that don't make rational sense. By understanding the psychological mechanisms behind our decisions, we can make more informed decisions that align with our goals. Emotions such as fear, greed, and anxiety significantly influence our financial decisions. Fear of losing money can lead to conservative decisions, while greed can lead to excessive risk-taking. Hope for a better future can motivate us to save, but it can also lead us to invest in high-risk assets. Emotions are like an internal GPS that guides us in our financial decisions. However, they can lead us down a wrong path if not managed properly. By identifying and understanding our emotions, we can make more rational decisions that are aligned with our long-term goals. Cognitive biases are mental shortcuts we use to make decisions faster, but they can lead us to make mistakes. Examples of biases include loss aversion, confirmation bias, and herd behavior. How to identify and overcome these biases to make sounder financial decisions. Our brains are incredible machines, but they are also prone to making mistakes. Cognitive biases are like optical illusions that distort our perception of reality. By being aware of these biases, we can take steps to counteract their effects and make more rational decisions. Our financial habits are shaped by our experiences and beliefs. The importance of developing healthy financial habits, such as saving, investing, and planning for the future. How to create new habits and break old financial habits. Our financial habits are like paths we follow on autopilot. If we want to change our financial results, we need to change our paths. By developing new positive financial habits, we can transform our financial lives. Financial psychology offers us a new perspective on money. Instead of seeing money as an end in itself, we can see it as a means to achieve our goals and live a more fulfilling life.
Download or read book Computerized Design and Generation of Low Noise Helical Gears with Modified Surface Topology written by and published by . This book was released on 1994 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approach for design and generation of low-noise helical gears with localized bearing contact is proposed. The approach is applied to double circular arc helical gears and modified involute helical gears. The reduction of noise and vibration is achieved by application of a predesigned parabolic function of transmission errors that is able to absorb a discontinuous linear function of transmission errors caused by misalignment. The localization of the bearing contact is achieved by the mismatch of pinion-gear tooth surfaces. Computerized simulation of meshing and contact of the designed gears demonstrated that the proposed approach will produce a pair of gears that has a parabolic transmission error function even when misalignment is present. Numerical examples for illustration of the developed approach are given.
Download or read book Gear Geometry and Applied Theory written by Faydor L. Litvin and published by Cambridge University Press. This book was released on 2004-09-06 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised, expanded, edition covers the theory, design, geometry and manufacture of all types of gears and gear drives. This is an invaluable reference for designers, theoreticians, students, and manufacturers. This edition includes advances in gear theory, gear manufacturing, and computer simulation. Among the new topics are: 1. New geometry for modified spur and helical gears, face-gear drives, and cycloidal pumps. 2. New design approaches for one stage planetary gear trains and spiral bevel gear drives. 3. An enhanced approach for stress analysis of gear drives with FEM. 4. New methods of grinding face gear drives, generating double crowned pinions, and improved helical gear shaving. 5. Broad application of simulation of meshing and TCA. 6. New theories on the simulation of meshing for multi-body systems, detection of cases wherein the contact line on generating surfaces may have its own envelope, and detection and avoidance of singularities of generated surfaces.
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 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 Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1989-11 with total page 506 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 1995 with total page 1482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1995 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precision CNC Machining for High Performance Gears written by Shilong Wang and published by Elsevier. This book was released on 2023-09-08 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precision CNC Machining for High-Performance Gears: Theory and Technology covers basic theories and methods, key technologies, and machining equipment in precision CNC machining of high-performance gears. Sections cover research status and development trends of machining technologies and CNC machining equipment of high-performance gears, calculation theories of the precision modification method of high-performance gears, methods of reducing the machining principle errors of high-performance gears, the modeling method of multi-source errors and the compensation technique of CNC gear machine tools, the key technologies of precision CNC gear machine tools, the optimization method of the process parameters of hobbing and grinding, key technologies, and more. Covers a proposed new method to calculate the envelope of the point vector family in the machining process of modified gears Details a new multi-source error modeling method and compensation technology of gear machine tools Describes the development of high-performance gear precision machine tools and its components to break monopolies Presents an optimization method of gear hobbing and grinding processes developed to guarantee machining accuracy and surface integrity
Download or read book Theory of Gearing written by Stephen P. Radzevich and published by CRC Press. This book was released on 2018-05-15 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leading expert, Theory of Gearing: Kinematics, Geometry, and Synthesis, Second Edition is intended for engineers and researchers in the field of gear design, gear production, gear inspection, and application of gears. It focuses on the scientific theory of gearing, in all its aspects, and its application to new gear types and designs.
Download or read book Computerized Simulation of Meshing of Conventional Helical Involute Gears and Modification of Geometry written by and published by . This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approach is proposed for computerized simulation of meshing of aligned and misaligned involute helical gears. Algorithms for TCA (Tooth Contact Analysis) computer programs were developed. Influence of misalignment on the shift of the bearing contact and transmission errors has been investigated. Numerical examples that illustrate the developed theory are provided.
Download or read book Analysis and Synthesis of Modified Spur and Helical Gears written by Jiao Zhang and published by . This book was released on 1989 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Tech Briefs written by and published by . This book was released on 1993 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to NASA Tech Briefs written by and published by . This book was released on with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
