کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1706601 1012467 2007 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mathematical modelling of layered contact mechanics of cam–tappet conjunction
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Mathematical modelling of layered contact mechanics of cam–tappet conjunction
چکیده انگلیسی

The paper briefly introduces a fast converging mathematical model to predict the peculiarities of the non-conforming contact between an infinitely long cylinder and a coated elastic substrate. The proposed method is then integrated into a multi-physics analysis of the valve train system of a racing type internal combustion (IC) engine. Due to relatively high loads and speeds experienced, particularly in the cam–tappet contacts, hard wear resistant coatings are used, which greatly influence the contact mechanics performance. Results indicate that the layer thickness is the determining factor in contact characteristics, which alters during the cam cycle. Therefore, for optimal performance coatings of non-uniform thickness should ideally be applied to the circumference of the cam rather than the usual coating of the tappet surface with a given thickness.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 31, Issue 11, November 2007, Pages 2610–2627
نویسندگان
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