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Solution of a Non-Linear Heat Conduction Problem in Automotive Clutch and Brake Systems
No full textThis paper investigates the transient solution for a non-linear heat conduction problem in automotive clutch system. The frictional heat generated during clutch disks engagement is known to cause thermoelastic distortion which in turn modifies the contact pressure distribution. The contact boundary condition that defines the area over which the heat is to be generated is also known to change and shift if the engagement process is run long enough. The thermal boundary in this case is time dependent and the problem becomes nonlinear. To account for such boundary condition, a solution methodology is proposed in this paper and tested in the context of a clutch disk sliding between two rigid bodies.</jats:p
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Thermal Performance of a Single Slope Solar Water Still with Enhanced Solar Heating System
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