静态hysteresis的机械建模在压床下使用一种新的风病学方法
Artur Zbiciak1, Cezary Kraśkiewicz1, Kacper Wasilewski1
1Institute of Roads and Bridges, Faculty of Civil Engineering, Warsaw University of Technology, Al. Armii, Ludowej 16, 00-637 Warsaw, Poland.
Materials (Basel, Switzerland)
|December 11, 2025
概括
一个新的机械模型用于压载 (UBM) 准确模拟静态负载下的能量消耗. 这项研究通过了解UBM歇斯底里循环来提高轨道结构性能,提高了铁路振动的降低.
科学领域:
- 土木工程 土木工程是指土木工程.
- 机械工程 机械工程
- 铁路工程 铁路工程是指铁路工程.
背景情况:
- 压地板下 (UBM) 是压轨道结构中的关键组件,用于减轻铁路引起的振动.
- 这些振动会影响人类的福祉以及周围的自然和建筑环境.
- 无线机械设备的一个关键特征是能量消耗,这种消耗在负载偏移曲线中的歇斯底里循环中很明显,即使在静态负载下也是如此.
研究的目的:
- 开发一个新的机械模型,用于下压力 (UBMs).
- 该模型旨在准确地复制在静态负载下在UBM中观察到的能量消耗现象.
- 为了解和优化UBM减振性能提供理论框架.
主要方法:
- 为UBM模型制定构成方程,作为普通微分方程的非线性集合.
- 使用优化程序对模型参数进行校准.
- 将理论模型的综合结果与UBM在静态条件下的实验测试数据进行匹配,符合EN 17282:2020-10.
主要成果:
- 一个经过验证的非线性机械模型,能够模拟UBM在静态负载下的能量消耗.
- 在静态负载期间,在UBM中量化歇斯底里循环行为.
- 通过与实验结果进行比较来证明模型的准确性.
结论:
- 拟议的机械模型有效地捕捉了压力底下的静态能量消散行为.
- 这项工作为设计和实施更有效的铁路振动减轻策略提供了有价值的工具.
- 了解静态歇斯底里对于优化UBM在现实世界铁路应用中的性能至关重要.
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