کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4924343 1430836 2017 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability and vibration characteristics of a rotor-gas foil bearings system with high-static-low-dynamic-stiffness supports
ترجمه فارسی عنوان
ویژگی های پایداری و ارتعاش یک سیستم یاتاقانهای فویل روتور با پشتیبانی از استحکام کم پویا-سختی
کلمات کلیدی
سیستم بلبرینگ روتور گاز فویل، استحکام بالا با استحکام کم ثبات چرخش، لرزش، شوکه شدن،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Supporting gas bearings with proper flexible supports can improve the stability performance of a rotor-bearings system. Many researchers had successfully applied O-rings to stabilize the high-speed rotor mounted on the rigid surface gas bearings. However, no systematic investigation on dynamic characteristics of gas foil bearing with flexible supports is available so far. Furthermore, how the support properties affect the unbalance and shock vibration characteristics has not been fully investigated yet. There may well be this case that a trade-off between stability, unbalance and shock vibration reduction performances exists. So this research aims to synthetically study the effects of support stiffness and damping on dynamic characteristics of the rotor-gas foil bearing system, i.e., stability, unbalance and shock vibration characteristics. In addition, high-static-low-dynamic stiffness (HSLDS) type springs are used as flexible supports to improve the dynamic performances of the system. Parameter studies of support stiffness and damping on dynamic performances provide guidance for the design of HSLDS. Simulation results demonstrated the effectiveness of the application of well-designed HSLDS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 397, 9 June 2017, Pages 152-170
نویسندگان
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