设置MR-TMD系统的跨线天桥在正线列车下的振动控制研究

发布时间：2018-05-10 12:52

本文选题：正线列车 + 跨线天桥　；参考：《武汉理工大学学报》2015年11期

【摘要】：对设置MR-TMD系统的跨线人行天桥在正线列车从其下方高速通过时的振动响应的抑制方法进行了研究。建立了设置TMD或MR-TMD系统的跨线人行天桥在列车风与列车引起的非一致激励环境振动共同作用下的智能控制方法,并以某跨线人行天桥为工程背景,根据不同类型的控制装置和控制算法对该跨线天桥在正线列车通过时的振动响应控制进行了研究,同时将仅采用TMD系统、采用MR-TMD系统的开关控制算法和采用MR-TMD系统的固定增量控制算法的控制效果进行对比分析。研究结果表明:采用MR-TMD系统的跨线天桥对于抑制由于高速列车通过时的振动响应非常有效,相应的舒适度也能得到极大改善,同时,采用MR-TMD系统的固定增量控制算法对跨线天桥的抑制效果明显优于其他类型的控制方法。
[Abstract]:In this paper, the suppression method of vibration response of cross-line pedestrian overpass with MR-TMD system is studied when the main train passes through it at high speed. The intelligent control method of cross-line pedestrian flyover with TMD or MR-TMD system under the action of train wind and non-uniform excitation environment vibration caused by train is established, and the engineering background is a cross-line footbridge. According to different control devices and control algorithms, the vibration response control of the cross-line flyover is studied when the main train is passing, and only the TMD system will be used at the same time. The control effect of switching control algorithm of MR-TMD system and fixed increment control algorithm of MR-TMD system is compared and analyzed. The results show that the cross-line flyover with MR-TMD system is very effective in suppressing the vibration response of high-speed train, and the corresponding comfort can be greatly improved, at the same time,
【作者单位】：武汉理工大学道路桥梁与结构工程湖北省重点实验室;武汉理工大学土木工程与建筑学院;湖北经济学院物流与工程管理学院;
【基金】：国家自然科学基金(51108363) 湖北省自然科学基金(2014CFB849)
【分类号】：U441.3

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