铁道科学与工程学报2025，Vol.22Issue(10)：4376-4387,12.DOI:10.19713/j.cnki.43-1423/u.T20250084
基于Monte Carlo模拟的高速列车转向架积冰脱落风险评估
Risk assessment of de-icing from train bogies based on Monte Carlo simulation
摘要
Abstract
During the operation of high-speed trains in cold regions,ice and snow blocks adhering to the bogie area,are prone to detachment under the influence of airflow disturbance and temperature fluctuations.These detached blocks may strike the track bed or trackside facilities,posing significant safety hazards.To quantitatively assess the risk of de-cing from train bogies,this study proposed an evaluation method based on Monte Carlo simulation.By analyzing the mechanical mechanisms of ice adhesion on trains,a multi-factor hierarchical index system was established,and a limit state function was constructed to account for the coupled effects of wind load,vibration,and temperature.Based on meteorological data measured from 2021 to 2023 in the Siping section of the Harbin-Dalian High-Speed Railway and relevant experimental data from the literature,the statistical characteristics of key parameters were extracted and fitted.Random simulations were then conducted to analyze the influence patterns of various factors on ice detachment risk.The results indicate that train speed and the mass of ice blocks have the most significant impact on the reliability of ice shedding,with higher speeds and larger masses increasing the likelihood of detachment.Environmental temperature exhibits a nonlinear regulatory effect on the adhesive strength between ice blocks and the train body:adhesion increases in the initial stage of temperature drop but weakens further with continued cooling due to changes in material properties.The adhesion height and surface area of ice blocks show complex,non-monotonic effects due to local disturbances and uneven shear stresses.This study provides a quantitative foundation and theoretical support for mechanism identification and protective strategy development related to train ice shedding in cold regions.关键词
高速铁路/冰块脱落/Monte Carlo模拟/风险评估/可靠度Key words
high speed railway/de-icing/Monte Carlo simulation/risk assessment/reliability分类
交通运输引用本文复制引用
丁东,蔡业林,马鑫宁,李杰,井国庆..基于Monte Carlo模拟的高速列车转向架积冰脱落风险评估[J].铁道科学与工程学报,2025,22(10):4376-4387,12.基金项目
国家自然科学基金资助项目(52308432) （52308432）
中国博士后科学基金第73批面上资助项目(2023M730357) （2023M730357）
内蒙古自治区自然科学基金资助项目(2024MS05067) （2024MS05067）
