کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6954557 | 1451831 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On use of characteristic wavelengths of track irregularities to predict track portions with deteriorated wheel/rail forces
ترجمه فارسی عنوان
در مورد استفاده از طول موج های مشخص بی نظمی مسیر برای پیش بینی قسمت آهنگ با نیروی چرخ / ریل رو به زوال است
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کلمات کلیدی
دینامیک خودرو همراه ردیابی بی نظمی، تعامل چرخ / راه آهن، روش تجزیه و تحلیل فرکانس زمان، روش پیش بینی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
The dynamic performance of the railway vehicles and the guiding tracks is mainly governed by the wheel-rail interactions, particularly in cases of track irregularities. In this work, a united model was developed to investigate the track portions subject to violent wheel/rail forces triggered by track irregularities at middle-low frequencies. In the modeling procedures, a time-frequency unification method combining wavelet transform and Wigner-Ville distribution for characterizing time-frequency characteristics of track irregularities and a three-dimensional nonlinear model for describing vehicle-track interaction signatures were developed and coupled, based on which the method for predicting track portions subject to deteriorated wheel/rail forces was proposed. The theoretical models developed in this paper were comprehensively validated by numerical investigations. The significance of this present study mainly lies on offering a new path to establish correlation and realize mutual prediction between track irregularity and railway system dynamics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 104, 1 May 2018, Pages 264-278
Journal: Mechanical Systems and Signal Processing - Volume 104, 1 May 2018, Pages 264-278
نویسندگان
Lei Xu, Wanming Zhai, Zhaowei Chen,