軌間の拡大・縮小が鉄道車両の走行に及ぼす影響 : 軌道狂い設定現車試験結果との比較に基づくシミュレーションによる検討

概要

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Comparison between responses of test train running on track irregularities artificially set on SHINKANSEN and those of vehicle dynamics simulation was made at the speed up to 210 km/h. In comparison between the measurements and simulation using basic parameters, the response to line irregularity of the measurements and simulation for the wave length longer than 40 m is nearly identical, although that of simulation becomes apparently larger than that of measurements for wave length of 20 m. Then the state of track irregularity artificially set was precisely investigated and an enlargement of gauge in the section of 20 m wave length was found. And simulation of the response assuming the gauge enlargement was nearly identical with that of measurements. In this report, the influence of wave length and gauge variation on the response to track irregularity mentioned above due to comparing measurements and simulation is analyzed. Besides, by using same simulation program, the influence of gauge variation on carbody hunting motion of new high speed SHINKANSEN train which has soft suspension between carbody and bogie due to bolsterless bogie is studied.
1998-05-25