Stiffness characteristics of two types of micro-motion flexure linear guides;

A simple and novel method for simultaneously measuring two-dimensional rotation angles of the linear guide track was presented which is based on a single-mode fiber-coupled laser module.

With the operation of 5,000 t heavy-load trains and the speed raising of passenger trains, a large quantity of straight rails with alternative uneven side wearing appear in the heavy-load and fast-speed section of the Beijing-Shanghairailway line, which makes the smooth-going index of straight rails worsen and causes some locomotives vibrate violently during their operation .