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Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study

التفاصيل البيبلوغرافية
العنوان: Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study
المؤلفون: Georges Kouroussis, David P. Connolly, Konstantinos Vogiatzis, Olivier Verlinden
المصدر: Shock and Vibration, Vol 2015 (2015)
بيانات النشر: Wiley, 2015.
سنة النشر: 2015
المجموعة: LCC:Physics
مصطلحات موضوعية: Physics, QC1-999
الوصف: This paper analyses the influence of rolling stock dynamics on ground-borne vibration levels. Four vehicle types (Thalys, German ICE, Eurostar, and Belgian freight trains) are investigated using a multibody approach. First, a numerical model is constructed using a flexible track on which the vehicles traverse at constant speed. A two-step approach is used to simulate ground wave propagation which is analysed at various distances from the track. This approach offers a new insight because the train and track are fully coupled. Therefore rail unevenness or other irregularity on the rail/wheel surface can be accurately modelled. Vehicle speed is analysed and the frequency spectrums of track and soil responses are also assessed to investigate different excitation mechanisms, such as carriage periodicities. To efficiently quantify train effects, a new (normalised) metric, defined as the ratio between the peak particle velocity and the nominal axle load, is introduced for a comparison of dynamic excitation. It is concluded that rolling stock dynamics have a significant influence on the free field vibrations at low frequencies, whereas high frequencies are dominated by the presence of track unevenness.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1070-9622
1875-9203
Relation: https://doaj.org/toc/1070-9622; https://doaj.org/toc/1875-9203
DOI: 10.1155/2015/142807
URL الوصول: https://doaj.org/article/c1e38a3daad94c31b6a01f4552faec55
رقم الأكسشن: edsdoj.1e38a3daad94c31b6a01f4552faec55
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:10709622
18759203
DOI:10.1155/2015/142807