摘要
以装载罐式集装箱的平车为研究对象,通过铁路货车疲劳与振动试验台对平车及装载集装箱的平车进行室内台架模态试验,分析了模态参数的分布情况。通过在平车车体及集装箱上布置加速度传感器及应变片,进一步分析了装载集装箱的载荷传递过程及关键评估点的振动响应。结果表明:车体装载空箱后,平车的两个扭转振型全部消失,同时在枕梁部位出现30~60 Hz的高频振动。车体装载重箱后,除扭转振型受到抑制外,更多的车体振型消失,同时由于载重的影响,枕梁部位的高频区间发生偏移,变为20~50 Hz。此外,空箱状态下的罐箱角座处的冲击比重箱更为强烈。该试验为罐式集装箱的结构优化和模态特性分析提供基础数据。
In this paper, taking the platform wagon of loading tank container as the research object, the indoor bench modal tests for the platform wagon and the platform wagon loaded with tank container are carried out through the railway truck fatigue and vibration test bench, and distribution of the modal parameters is analyzed. By arranging acceleration sensor and strain sheet on the platform wagon body and the container, the load transfer process and the vibration response of the key assessment points are further analyzed. The results show that the two torsional vibration types of the railway wagon all disappear after loading the empty box;at the same time, a 30~60Hz high-frequency vibration appears in the pillow beam part. After the heavy box is loaded, more of the wagon body vibration disappears except the torsional vibration is suppressed;meanwhile, the high frequency interval of the pillow beam deviates to 20~50Hz due to the influence of heavy load. In addition, the impact at the corner of the empty box is stronger. This study provides basic data for the structural optimization and modal characteristics analysis of the tank container.
作者
王俊龙
WANG Jun-long(CRRC Qiqihar Rolling Stock Co.,Ltd,Qiqihar Heilongjiang 161002,China)
出处
《机械研究与应用》
2022年第6期66-69,共4页
Mechanical Research & Application
关键词
平车
集装箱
模态试验
振动响应
platform wagon
container
modal test
vibration response
