客运专线舒适性评价问题探析

研究目的:为建立一套符合我国客运专线实际的舒适性评价体系,本文对世界各国客运专线舒适性评价 标准进行了广泛研究,并对其中使用较普遍的UIC Sperking准则和ISO 2631国际标准进行了简单介绍。 研究方法:在与舒适度相关的多个因素中,从振动舒适度这一特殊而重要的参数着手,由一系列正矢来表 示整条线路的纵、平面几何状态,根据铁路线路纵、平面设计参数与列车响应之间的关系,得到列车响应的垂直 和横向转换函数,通过计算加权加速度均方根值并结合ISO 2631国际标准在狭义的动力学范畴内来进行乘 坐舒适性的评价。 研究结果:对于我国客运专线线路设计方案比选、优化等方面具有重要意义。 研究结论:直接根据线路纵、平断面的状况进行舒适性评价只考虑到了设计线路处于理想状态的条件下。 而本质上,线路轨道的不平顺也是引起机车车辆振动的主要根源。严重的轨道不平顺不仅会引起机车车辆剧烈 振动,影响乘坐舒适性,而且使轮轨作用力加大,甚至会导致列车脱轨,危及行车安全。因此,本文所提之理论方 法还需要与运动、动力仿真和实测、类比分析方法相结合。

DISCUSSION ON THE EVALUATION TO THE COMFORT PERFORMANCE OF PASSENGER DEDICATED RAILWAY LINE

Research purpose: In order to establish a system about the evaluation of comfort performance, this paper researched many foreign countries' comfort performance criterion,and especially,a brief outline on UIC Sperling guide line and international standard ISO 2631, which is widespread application thereinto. Research method:Taken measures on the vibration comfort performance, which is a special and important one in those factors correlated with comfort performance. The vertical and planar geometry state of the whole line denoted by the versine, and according to the relationship between the vertical and planar design parameter of railway and the train response,gained vertical and planar transition function of the train response,and then,via the calculation of root mean square of weighed acceleration, integrated ISO 2631 standard to carried through the riding comfort evaluation in the dynamics category of narrow sense, Research resultr:It is to have a important significance for the Passenger Dedicated Railway Line design, comparison, selection and optimization of scheme. Research conclusion:Moreover,we can draw a conclusion that it is necessary all the same to combine the simulation of locomotion and dynamic and the analysis method of locale testing and analogy,thus established a foundation for the further research.