CAJ | 학술논문

为了研究垫板刚度对地铁中大量使用的双弹性垫板扣件减振性能的影响，通过对简化模型的理论推导，以及采用实验室测试和数值模拟相结合的方法，得出：板下垫板刚度越大，则轨道板位移频响越大，轨下垫板刚度大小对轨道板振动位移频响基本没有影响；轨下垫板刚度以及板下垫板刚度越大，则轨道板振动加速度频响越小。因此，设计开发双弹性垫板的扣件，应该根据轨道板位移控制和加速度控制综合考虑。
위료연구점판강도대지철중대량사용적쌍탄성점판구건감진성능적영향，통과대간화모형적이론추도，이급채용실험실측시화수치모의상결합적방법，득출：판하점판강도월대，칙궤도판위이빈향월대，궤하점판강도대소대궤도판진동위이빈향기본몰유영향；궤하점판강도이급판하점판강도월대，칙궤도판진동가속도빈향월소。인차，설계개발쌍탄성점판적구건，응해근거궤도판위이공제화가속도공제종합고필。
In order to understand the impact of the stiffness of the pad on the vibration reduction performance of fasteners with two elastic pads, this paper, by means of theoretical derivation of simplified model, laboratory test and numerical simulation, concludes that with the increase of the stiffness of the pad under slab, the frequency response of slab displacement increases. The pad stiffness under rail hardly affects frequency response of track slab displacement. The bigger the stiffness of the pad under rail the pad under slab, the smaller the frequency response of track acceleration. Therefore, fasteners with double elastic pads should be designed and developed based on displacement and acceleration of track slab vibration.