| 1. | Vibration model analysis of floating slab track system 浮置板轨道结构系统振动模态分析 |
| 2. | A model experiment is made on an actual floating slab track , and the vibration transfer property of this track under three different frequencies of impact load is mainly tested 对浮置板进行了1 : 1模型试验,主要测试了浮置板在3种不同频率冲击载荷作用下的振动传递特性。 |
| 3. | Noise of a running train will be mitigated by low vibration track , floating slab track , train skirts and a multi - plenum system to attenuate airborne noise at source 为减低列车经过时所产生的噪音,支线的路轨会装置弹性底板及浮动平板,列车亦会装上裙边及多重隔音系统,以消减因结构震荡而产生的声音。 |
| 4. | Vibration test is applied to floating slab track and fixed track that has been used in sites . the results approve the vibration reduction effect of the former and preliminarily verify the correctness of computer simulation 在现场对运营中的浮置板式轨道结构和整体道床进行对比振动测试,测试结果证实了浮置板式轨道结构的减振效果,并初步验证了仿真计算结果的正确性。 |
| 5. | This thesis describes some means and measures of controlling vibration and noise of the urban rail transit in the world . emphasis is laid on floating slab track which is a mass - spring vibration isolation system and the best vibration - decreasing measure in rail transit system 本文叙述了国内外用于控制城市轨道交通振动和噪声的一些方法和措施,重点讨论了浮置板式轨道结构,它是一种质量?弹簧隔振系统,是目前轨道交通中减振效果最好的措施。 |
| 6. | Other noise abatement measures taken include putting noise absorbing lining under the train car , beneath the walkways along the tracks and on the inside of the parapets , adding " skirts " to train vehicles , installing floating slab track and rubber bearings , and extending the walkways and parapets at critical sections 其他噪音消减措施包括在车底、路轨两旁通道及护墙内侧加设吸音垫;为列车加装裙边;在路轨装置浮动板及橡胶垫片;以及在一些较接近民居的路段加阔路轨两旁通道和加高护墙等。 |
| 7. | In order to understand the key parameter , which influence the vibration isolation efficiency of floating slab track and provide theoretical support for simulation , we analyze the vibration isolation principle of floating slab track . coupling dynamics of vehicle - rail - floating slab - foundation system is calculated using the general software - ansys . the dynamic performances of the floating slab and the efficiencies of the vibration isolation are analyzed in detail 建立了车辆?钢轨?浮置板?地基二维有限元模型,并采用有限元计算软件ansys ,对整个耦合系统进行了不同工况下的动力学计算模拟,详细分析了浮置板式轨道结构的动力学性能和浮置板式轨道结构的隔振效果。 |