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An “Engineering Research Series” title. This excellent and long awaited book is based upon extensive research carried out by the Institute of Tribology at the University of Leeds in the UK and the Ford Motor Company Ltd. It is concerned with both the theoretical and experimental study of the tribological performance of an automobile valve train, having an offset taper cam and a domed follower, incorporated with an hydraulic lash adjuster, with particular reference to the ZETA engine valve train. <p> A sophisticated theoretical model has been developed that predicts the tribological performance of the valve train, and also provides a useful tool for the consideration of the tribological design of valve trains. Additionally the model can estimate the instantaneous and average rotational frequency of the follower, and the performance of the hydraulic lash adjuster. <p> In order to validate the theoretical model, the experimental measurements have been correlated with the theoretical predictions that simulate the test conditions of the valve train. The agreement between the measurements and the predictions show that the model is very reliable. This gives readers great confidence in using the model when dealing with novel and alternative designs of the valve train.<br> <p> COMPLETE CONTENTS: <ul> <li> <div>Part One – Theoretical Formulation. Kinematics and dynamics of the cam and follower</div> <li> <div>Hydraulic lash adjuster</div> <li> <div>The maximum hertzian stresses</div> <li> <div>Asperity interactions</div> <li> <div>The oil film thickness</div> <li> <div>Friction and power loss of the valve train</div> <li> <div>The rotation of the follower</div> <li> <div>The overall solution procedure and input/output data</div> <li> <div>An example of the tribological analysis of a valve train.</div> <li> <div>Part Two – Experimental Study. Test apparatus and the instrumentation</div> <li> <div>Calibration of the instrumentation and commissioning tests</div> <li> <div>Test procedure</div> <li> <div>Data processing</div> <li> <div>Experimental results and discussions</div> <li> <div>Part Three – Correlation of theory and experiments. Experimental evidences</div> <li> <div>Theoretical predictions</div> <li> <div>Comparison of results and discussions</div> <li> <div>Overall conclusions.</div> </ul>
"Asphalt Mix Design and Construction: Past, Present, and Future" is a special publication focusing on the history, development, trends, and evolution of hot mix asphalt (HMA) design and pavement construction. This committee report contains four papers that were presented at a special technical session, "Evaluation of Bituminous Materials Mix-Design & Superpave," of the Conference to celebrate the 150th Anniversary of ASCE in Washington, D.C. on November 3, 2002. These papers discuss bituminous materials in mix-design, the future of asphalt pavements, modified asphalt binders, and quality control and assurance. This report offers a historical perspective into the field of asphalt design and construction. It will benefit consulting engineers, contractors, government officials and engineers at various levels, and university students, educators, and researchers.
Computers In Building : Proceedings Of The Eighth International Conference On Computer Aided Architectural Design Futures Held At Georgia Institute Of Technology, Atlanta, Georgia, U S A On June 7-8, 1999
Since the establishment of the CAAD Futures Foundation in 1985, CAAD experts from all over the world meet every two years to present and document the state of the art of research in Computer Aided Architectural Design. Together, the series provides a good record of the evolving state of research in this area over the last fourteen years. The Proceedings this year is the eighth in the series. The conference held at Georgia Institute of Technology in Atlanta, Georgia, includes twenty-five papers presenting new and exciting results and capabilities in areas such as computer graphics, building modeling, digital sketching and drawing systems, Web-based collaboration and information exchange. An overall reading shows that computers in architecture is still a young field, with many exciting results emerging out of both greater understanding of the human processes and information processing needed to support design and also the continuously expanding capabilities of digital technology.
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