摘要
研究了如何在高速列车设计阶段预测机车振动舒适特性.首先采用ANSYS建立某型号高速列车M车的有限元模型,在MATLAB中采用频域法对功率谱密度进行处理;然后以轨道水平不平顺为例进行瞬态分析模拟出高速列车在运行时的整车响应,采集地板上某些节点加速度响应数据,进行相关处理后得出了M车对应的舒适度和平稳性指标.
How to predict the vibration/comfortableness characteristics of an express train（motor coach train） in China in its design was investigated.With the software ANSYS used to develop a finite element model for a motor coach,the frequency domain method is introduced to deal with the power spectrum density in MATLAB.Then,taking the horizontal irregularity of railroad as an example,a transient analysis is made to simulate the response from the running motor coach train with the acceleration responses collected at some nodes on a coach floor to calculate the degree of comfortableness and the coach’s jolt-proof index.This method makes it possible to evaluate effectively the vibration characteristics and passengers’ sitting comfortableness of a motor coach hence the whole train under different running conditions in the conceptual design.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第5期704-707,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(75104412)
关键词
高速列车
频域法
瞬态分析
舒适度
平稳性
express train
frequency domain method
transient analysis
comfortableness
jolt-proof
