کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4986279 1454800 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of lubricant rheology and impact speed on EHL film thickness at pure squeeze action
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Effects of lubricant rheology and impact speed on EHL film thickness at pure squeeze action
چکیده انگلیسی
A squeeze film action is an essential phenomenon in elastohydrodynamically lubricated conjunctions subjected to impact loading or sudden halting of motion and affects both film thickness and friction. This study presents experimental results of film thickness behaviour of lubricant entrapment under diverse conditions including initial impact gaps, initial approaching speeds, loading speeds and variety of lubricants during introductory part of impact loading. The results are compared with recent theoretical solution. It is shown that the entrapped film shape directly depends on loading speed and the central film thickness is mainly determined by the approaching speed and lubricant viscosity and can be approximated by power law where the influence of impact times/speeds can be estimated from basic rheological properties of lubricants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 106, February 2017, Pages 1-9
نویسندگان
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