کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
802140 1467744 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formula derived from particle swarm optimization (PSO) for optimum design of cylindrical roller profile under EHL regime
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Formula derived from particle swarm optimization (PSO) for optimum design of cylindrical roller profile under EHL regime
چکیده انگلیسی


• Evaluation of a simple geometry for roller profiling.
• Multi-objective optimization of thermal EHL problems including edge effects.
• Analysis assumes optimal profile corrections assure uniform contact pressure.
• Analysis included slenderness, load, and three mineral oil ISO grades.
• The final formulas offer a rapid design tool for optimal roller profiles.

Roller profile corrections play an important role in EHL load capacity of cylindrical contacts. Recently, the authors published a 3D thermal EHL model and demonstrated that when considering pressure distribution uniformity, crowning modifications combined with rounded corners offer similar performances to that of logarithmic profiles, while conceivably being less difficult to manufacture. This paper develops formulas establishing crowning and corner rounding radii for rapid design of optimal roller. These formulas amalgamate results obtained from multi-objective particle swarm optimizations (PSOs) completed over a five-level dimensionless factorial design, with the factors being the slenderness, the load and the lubricant viscosity. The PSO optimizations integrated three concurrent objective functions: the contact pressure uniformity, the film thickness stability, and the maximum load capacity.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanism and Machine Theory - Volume 90, August 2015, Pages 162–174
نویسندگان
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