CAJ | 학술논문

对岔区轨道刚度合理取值及均匀化技术、尖轨降低值优化技术、转辙器运动学轨距优化技术、侧线线型设计技术对动车组高速直、侧向过岔平稳性的影响进行了试验研究。研究结论如下：为保证旅客乘坐舒适性,必须结合采用的扣件特点选择合适的岔区轨道刚度,刚度均匀化在理论上可以实现,实际上受施工质量以及道岔精调状态等因素影响；尖轨相对于基本轨的降低值决定了轮轨垂直力在尖轨和基本轨间的过渡范围及过渡比例,并直接影响列车过岔平稳性,降低值过大会严重影响道岔平顺性及降低行车平稳性；是否采用运动学轨距优化技术对道岔平顺性无显著影响,客专线道岔不采用运动学轨距优化技术是有试验数据支撑的；动车组侧向通过42号和62号道岔的车体水平加速度实测最大值小于1.5 m/s2,符合技术条件要求,和设计预期一致。
대차구궤도강도합리취치급균균화기술、첨궤강저치우화기술、전철기운동학궤거우화기술、측선선형설계기술대동차조고속직、측향과차평은성적영향진행료시험연구。연구결론여하：위보증여객승좌서괄성,필수결합채용적구건특점선택합괄적차구궤도강도,강도균균화재이론상가이실현,실제상수시공질량이급도차정조상태등인소영향；첨궤상대우기본궤적강저치결정료륜궤수직력재첨궤화기본궤간적과도범위급과도비례,병직접영향열차과차평은성,강저치과대회엄중영향도차평순성급강저행차평은성；시부채용운동학궤거우화기술대도차평순성무현저영향,객전선도차불채용운동학궤거우화기술시유시험수거지탱적；동차조측향통과42호화62호도차적차체수평가속도실측최대치소우1.5 m/s2,부합기술조건요구,화설계예기일치。
The paper presents a study on the tests on several key technologies,.i.e.reasonable value and hom-ogenization of track stiffness,the machining value of switch rail,switch kinematic gauge optimization,and the effect of siding layout on the riding quality of an EMU train passing through the turnouts.The testing has been conducted to research these technologies.The test results show that the selection of appropriate track stiffness in turnout area must be combined with the fastener characteristics to improve riding quality.The homogeniza-tion of track stiffness is realizable theoretically.But it is influenced by factors such as the construction quality and turnout fine-tuning.The switch rail relief against the stock rail determines the transition range and scale of wheel-rail vertical force between switch and stock rails,and directly influences the riding quality of the train passing through the turnouts.Geometric regularity of turnouts and riding quality will be affected if the switch rail relief is too high.The kinematic gauge optimization technology has no significant influence on the turnout geometry,The fact that kinematic gauge optimization technology is not applied to the turnouts of passenger dedicated lines is j ustified by the test data.The maximum values of carbody lateral acceleration were under 1 . 5 m/s2 when EMU trains passed the #42 and #62 turnouts.These results are consistent with the technical re-quirements and design expectations.