| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an abnormality detection method and the like of axle spring system, capable of properly detecting the abnormality during the operation of a vehicle. <P>SOLUTION: The abnormality detection method of axle spring systems 24, 34 disposed between carriage frames 21, 31 and axle boxes 22a, 23a, 32a, 33a of the railroad vehicle includes a step of detecting a vertical direction acceleration and a pitching direction acceleration of the carriage frames to determine the abnormality when the phase difference between the vertical direction acceleration and the pitching direction acceleration departs from the prescribed allowable range. <P>COPYRIGHT: (C)2012,JPO&INPIT |
