کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6752766 | 1430802 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of railway curve squeal in the time domain using a high-frequency vehicle/track interaction model
ترجمه فارسی عنوان
مطالعه خطای راه آهن در دامنه زمانی با استفاده از یک مدل تعامل وسیله نقلیه / مسیر با فرکانس بالا
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کلمات کلیدی
منحنی پیچک، تماس چرخ / ریلی، چرخش چرخشی، روش عنصر متحرک، دینامیک فرکانس بالا راه آهن،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The introduction of flexibility in the railway subsystems is required to widen the domain to the high-frequency range in which squeal occurs. One single flexible and rotatory wheelset is considered and suitable forces are prescribed at the primary suspension seats in the current investigation. The rails are modelled through the Moving Element Method (MEM), permitting to extend the range of validity of beam models usually utilised in the literature. This work extends the formulation to rails supported by a viscoelastic Winkler bedding. Both wheelset and track models are coupled by means of a non-linear and unsteady wheel/rail contact model based on Kalker's Variational Theory. Simulation results for different track curvatures and friction coefficients are presented and discussed, showing tonal peaks in the tangential contact forces of the inner wheel. These results can be associated with squeal according to the characterisation of this phenomenon, indicating that squeal can be found in curving conditions using advanced dynamic interaction models even with constant friction coefficient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 431, 29 September 2018, Pages 177-191
Journal: Journal of Sound and Vibration - Volume 431, 29 September 2018, Pages 177-191
نویسندگان
J. Giner-Navarro, J. MartÃnez-Casas, F.D. Denia, L. Baeza,