压舱物
磁道(磁盘驱动器)
工程类
振动
流离失所(心理学)
作者
Artur Zbiciak,Cezary Kraśkiewicz,Anna Al Sabouni-Zawadzka,Jan Pełczyński,Sławomir Dudziak
出处
期刊:Materials
[MDPI AG]
日期:2020-05-26
卷期号:13 (11): 2438-
被引量:9
摘要
The present paper is dedicated to the analysis of under sleeper pads (USP), which are resilient elements used in ballasted track systems as vibration isolators. Four types of USP are considered. The authors present the results of laboratory tests, which are then used as input values for the finite element (FE) and mechanical model of the structure. A special focus is put on the description of an original four-degree-of-freedom (4DoF) mechanical model of the system that includes a fractional rheological model of USP. Using the proposed approaches, the dynamic characteristics of under sleeper pads are determined, and conclusions on vibration isolation effectiveness are drawn.
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