摘要
以动车组中变流器穿墙套管安装板为研究对象,建立其在实际工况下的等效有限元模型,并通过模态测试得到模态参数校验修正的有限元模型,保证模型的合理性。然后采用IEC61373—2010标准中的加速度功率谱作为激励载荷,根据频域随机疲劳理论,利用有限元分析软件ANSYS和n Code Design Life对穿墙套管安装板进行随机振动下疲劳寿命的分析预测,从而对安装板的振动疲劳特性进行评估,为产品的设计、样机的试验和设备的安全运行提供依据和参考。
The finite element model of the wall bushing plate of the converter in the EMU under actual working conditions was established and verified by the modal parameters obtained from the modal test.Then,using the acceleration power spectrum in the IEC61373-2010 standard as the excitation load and according to the frequency domain random fatigue theory,the fatigue lifespan of the wall bushing plate under random vibration is analyzed and predicted by means of the finite element analysis software ANSYS and nCode DesignLife.Thus,the vibration and fatigue characteristics of the plate are evaluated.This study provides a reference for product design,prototype testing and safe operation of equipment of EMU converters.
作者
张强强
史江
刘莉
ZHANG Qiangqiang;SHI Jiang;LIU Li(CRRC Yongji Electric Co.,Ltd.,Yongji 044500,Shanxi,China;State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《噪声与振动控制》
CSCD
北大核心
2021年第3期158-162,共5页
Noise and Vibration Control
关键词
振动与波
变流器
随机载荷
有限元分析
模态试验
疲劳寿命
vibration and wave
converter
random vibration
finite element analysis
modal test
fatigue lifespan
