【摘要】 目前,国内外对于磁浮交通真空压力管道直线度测量问题的研究较少。本文结合西南交通大学在建的真空磁浮高速列车试验装置,提出了一种真空压力管道直线度测量方法。该方法在管道内建立高精度三维控制网,依据三维控制网测量采用圆曲线拟合方法确定各节管道的圆心坐标,并采用直线拟合方法分析整个管道的直线度。最后依据上述方法编制程序对实测数据进行了处理分析,验证了方法的可行性和正确性,可为今后真空磁浮压力管道的建设提供技术参考。更多还原

【Abstract】 At present,there are few studies on the straightness measurement of vacuum magnetic levitation pressure pipelines at home and abroad. Combining with the vacuum magnetic levitation high-speed train test device under construction of Southwest Jiaotong University,this paper puts forward a method for measuring the straightness of vacuum pipeline and introduces how to establish a highprecision three-dimensional control network in the pipeline,how to determine the coordinates of the center of each section of the pipe according to the three-dimensional control network and the method of circular curve fitting,and how to do the straight line fitting to analyze the straightness of the whole pipeline. Finally,according to the aboved method,a programis is compiled to process and analyze the measured data,which verifies the correctness and feasibility of the method,and provides reference for the construction of vacuum magnetic levitation pressure pipeline in the future.更多还原