摘要
伴随着高速铁路的快速发展,无缝钢轨的生产与检查维护是必不可少的工作,其中钢轨焊头平直度检测是很重要的一个环节。研究了基于激光相机的钢轨焊头平直度检测中的机械振动抑制。在该检测系统中,由于系统机械结构的振动对相机检测数据的影响,导致检测结果不准确。针对这一问题,采用基于有限时间Laplace变换的输入整形方法,通过抑制系统的残余振动,减少了检测信号中的噪声干扰,缩短了系统的稳定时间,降低了数据处理的复杂度,提高了系统的检测效率并且提高了系统数据处理结果的精确度。
With the rapid development of the high speed railway,the production and inspection and maintenance of the seamless rail is necessary.In which the rail welding head straightness inspection is essential.The mechanical vibration suppression of the flatness of rail welding head based on laser camera is researched.In the detecting system,the vibration caused by the mechanical structure seriously influences the testing data of the camera,leading to the results are inaccurate.To solve this problem,an input shaping method based on finite time Laplace transform is used to suppress the residual vibration.By this method,the noise of signal is reduced,the time of the stability is shortened,the complexity of data processing is lowered,the detection efficiency of the system and the precision of the results are improved.
出处
《测控技术》
CSCD
2017年第2期75-79,共5页
Measurement & Control Technology
基金
上海市教育委员会科研创新项目重点项目(14zz156)
上海市教育委员会本科重点课程建设离散数学(s201502001)
上海工程技术大学"十二五"内涵建设项目(B-8932-13-0124)
关键词
钢轨焊头
平直度
输入整形
机械振动
rail welding head
straightness
input shaping
mechanical vibration
