کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
286988 509527 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of squeal noise under positive friction characteristics condition provided by friction modifiers
ترجمه فارسی عنوان
بررسی نویز القایی تحت شرایط ویژگی اصطکاک مثبت ارائه شده توسط اصلاح کننده اصطکاک
کلمات کلیدی
چرخ جیغ، اصلاح کننده اصطکاک اصطکاک-خزش منحنی، ارتعاشات چرخ
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

Field application of friction modifiers on the top of rail has been shown to effectively curb squeal and reduce lateral forces, but performance can be variable, according to other relevant research. Up to now, most investigations of friction modifiers were conducted in the field, where it is difficult to control or measure important parameters such as angle of attack, rolling speed, adhesion ratio etc. In the present investigation, the effect of different friction modifiers on the occurrence of squeal was investigated on a rolling contact two disk test rig. In particular, friction-creep curves and squeal sound pressure levels were measured under different rolling speeds and friction modifiers. The results show friction modifiers can eliminate or reduce the negative slope of friction-creep curves, but squeal noise still exists. Theoretical modelling of instantaneous creep behaviours reveals a possible reason why wheel squeal still exists after the application of friction modifiers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 371, 9 June 2016, Pages 393–405
نویسندگان
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