中文摘要：

针对一种轨枕与钢轨连成一体，通过轨枕互相铰接而形成轨道，依靠设在轨枕端部的传动轴传递扭矩并实现轨道整体弯转的新型柔性轨道构造方案，研究了这种柔性轨道弯曲变形的规律。推导了柔性轨道受力弯曲的端部偏移量、轨向角变化量、钢轨轨缝变化量等主要轨道形变参数与相关设计参数之间的函数关系。对主要形变参数进行数值计算与分析，从几何变形关系及其数值分析方面证明这种新型柔性轨道设计方案的可行性，并给出其主要设计参数的参考值。

英文摘要：

The flexible track model FDT-2 is made up of a series of sleepers hinged together and connected with rails. There is a set of transmission shafts installed on the two ends of the sleepers that can transfer torque for helping the flexible track to bend as a whole. For this newly invented flexible track, its flexural characteristics were investigated. The paper presents the functional relationships between the key deformation parameters of the flexible track, such as the free end displacements, variation of its turning angles, the spacing changes between sleepers after track being bent and other interrelated design parameters. The numerical calculation and analysis of the key deformation parameters are also carried out to produce reference data for main design parameters. The outcomes show that the newly invented flexible track is physically feasible.