摘要
研究了不同环境温度下,动车组车窗各部位受风压疲劳载荷作用后的应力变化。结果表明,影响动车组车窗不同部位应力的主要因素各不相同。玻璃几何中心的应力受风压疲劳载荷作用的影响比受环境温度影响更大,铝合金窗框长边中点的应力同时受环境温度和风压疲劳载荷的影响,玻璃长边中点和玻璃角点的应力则受环境温度和风压疲劳载荷的影响都较小。
This paper studies the stress changes of various parts of the EMU window subjected to wind fatigue load under different ambient temperatures. The test results show that the main factors that affect the stress of different parts of the EMU window are different. Compared to the ambient temperature, the wind fatigue load has a greater impact on the stress of the geometric center of the window glass. The stress of the midpoint of the long side of the aluminum alloy window frame is simultaneously affected by the ambient temperature and wind fatigue load. While the stress of the midpoint of the long side and the corners of the window glass are less sensitive to the ambient temperature and wind fatigue load.
作者
石琳
刘海涛
韩蕾
SHI Lin;LIU Haitao;HAN Lei(China Building Material Test&Certification Group Co.,Ltd.,Beijing 100024)
出处
《中国建材科技》
CAS
2021年第2期20-23,共4页
China Building Materials Science & Technology
基金
中国建材检验认证集团股份有限公司科研基金(GJ012019024)。
关键词
温度变化
动车组
车窗
风压疲劳载荷
应力
temperature change
multiple units
window
wind fatigue load
strain
