Design Of Mechanical Power Transmissions

This second edition of Design for Mechanical Power Transmission contains more than twice the content of the original monograph. New materials include the addition of a chapter on Flexible Element Drives covering flat and v belt systems, chain link drives and an overview of CVT., more design example applications with solutions in all chapters, material on selecting commercially available transmissions and added case studies of matching power source to load requirements where performance characteristics vary with speed. In addressing the classic engineering problem of matching power source outputs to driven load requirements this revision continues to emphasize: modeling and analyzing the kinematics and operational performance of mechanical transmissions, applying the resulting mathematical relationships to the solution of steady state power transmission design problems and demonstrating how power source outputs and load requirements that vary with speed can be matched to accommodate start up transients. The following list of chapters and subheadings summarize the specific topics covered. Chap. 1 Definitions - force, torque, work, power, torque / power versus powerChap. 2 Gear kinematics - involute properties simple & compound trains, reverted compound trainsChap. 3 Epicyclic gear trains - epicyclic kinematics, compound epicyclic trains, planetary gear trainsChap. 4 Gear train applications - hybrid reduction systems, continuous ratio planetary, engine speed governor, Chap. 5 Fixed ratio transmission - operational performance, restraint requirements, power loss effectsChap. 6 Variable ratio transmissions - fluid couplings, torque convertersChap. 7 Flexible element drives flat and v belt drives, chain drives, CVTsChap. 8 Matching power source to load - performance criteria, speed effects, startup time

Design of Mechanical Power Transmissions addresses the classic problem of the need for an intermediate device between a mechanical power source and driven load that converts the motor output torque and speed to the torque and speed needs of the load. The content emphasizes the mathematical modeling and design performance analysis of the more commonly available fixed and variable ratio mechanical transmissions. A special feature of this monograph is that in every analytic development the solution process begins with the application of fundamental engineering principles to appropriate physical models. All presentations include a combination of text explanation of the solution development together with illustrations of the symbolic mathematical process. The goal is to provide an understanding of the basic theory and models that are appropriate to the engineering application of the relevant subject matter in a succinct manner. The knowledge content covered includes: Chapter 1: definitions of force, torque, work and power: relation between torque, speed and power. Chapter 2: rolling contact, involute gear tooth geometry, diametral pitch, gear ratios, simple and compound gear trains. Chapter 3: planetary gear system analysis, general gear ratio relationships, classic gear ratio outputs, interpretation. Chapter 4: example applications, manual mechanical hoist, variable high gear ratio hybrid planetary. Chapter 5: fixed ratio transmission performance, effect of input/output rotation on reaction torque, energy loss inclusion. Chapter 6: variable speed ratio transmissions, fluid coupling, torque converter, strengths and weaknesses. Chapter 7: transmission selection, variable speed power output and load, start up time. This monograph is not intended to be a textbook or comprehensive reference source. Its purpose is to assist the once acquainted reader in recalling relevant knowledge content or to provide concise complimentary assistance to those acquiring the knowledge for the first time in a structured learning environment.

Provides technical details and developments for all automotive power transmission systems The transmission system of an automotive vehicle is the key to the dynamic performance, drivability and comfort, and fuel economy. Modern advanced transmission systems are the combination of mechanical, electrical and electronic subsystems. The development of transmission products requires the synergy of multi-disciplinary expertise in mechanical engineering, electrical engineering, and electronic and software engineering. Automotive Power Transmission Systems comprehensively covers various types of power transmission systems of ground vehicles, including conventional automobiles driven by internal combustion engines, and electric and hybrid vehicles. The book covers the technical aspects of design, analysis and control for manual transmissions, automatic transmission, CVTs, dual clutch transmissions, electric drives, and hybrid power systems. It not only presents the technical details of key transmission components, but also covers the system integration for dynamic analysis and control. Key features: Covers conventional automobiles as well as electric and hybrid vehicles. Covers aspects of design, analysis and control. Includes the most recent developments in the field of automotive power transmission systems. The book is essential reading for researchers and practitioners in automotive, mechanical and electrical engineering.

This work provides broad coverage of essential information on mechanical power transmission and its components, facilitating decisions on basic design, materials selection, replacement, maintenance and applications. It contains end-of-chapter glossaries, helpful hints for students, and appendixes on abbreviations and metric conversions.

Focusing on the application of technology--not the design of machinery--this volume is designed to help manufacturing technologists and technical managers make intelligent, well-founded decisions regarding power transmission in manufacturing processes. Using a cross-disciplinary approach that relates mechanical, hydraulic, pneumatic, and electrical concepts and examples, it presents a straightforward development from the basic elements to the complex systems that achieve the full spectrum of manufacturing tasks in industry. It is not a "how to," but rather an exposé of alternative approaches that can be weighed in the context of cost, ease of implementation, efficiency, flexibility, adaptability, and other payoff factors that lead to profitable approaches to manufacturing. Features numerous descriptive and illustrative figures and problems, an no sophisticated mathematics. MECHANICAL POWER TRANSMISSION. Simple Machines--Mechanical Devices. Mechanical Power Transmission (Gears. Belts and Chains). Mechanical Power Transmission (Clutches, Couplings, Bearings). Specialized Devices. FLUID POWER TRANSMISSION. Hydraulics. Pneumatics. ELECTRICAL POWER TRANSMISSION. Electricity and Electromagnetism. Electric Motors. PRIME MOVERS--HEAT ENGINES. Heat Engines--Principle of Operation. Heat Engines--Types and Examples. Industrial Control. For manufacturing technologists and technical managers responsible for power transmission and its applications.