CAJ | 학술논문

浮置板道床能有效减小铁路振动的影响，因此可将其应用于穿越人口密集区的铁路地下直径线。为了确保行车的安全性和舒适性，有必要对铁路运营下浮置板道床钢轨的合理变形限值进行研究。基于有限元法，建立了车辆-橡胶浮置板道床耦合动力学模型，对SS9列车100 km／h速度下车辆、钢轨、浮置板等部件的动力学特性进行了研究，并从行车安全性和平稳性方面提出了浮置板道床钢轨的变形限值建议值。研究表明：橡胶垫面刚度小于0．02 N／mm3时，轨道结构产生较大垂向位移；100 km／h速度条件下，铁路橡胶浮置板道床钢轨垂向变形限值取4 mm时，能满足行车安全性和平稳性要求。
부치판도상능유효감소철로진동적영향，인차가장기응용우천월인구밀집구적철로지하직경선。위료학보행차적안전성화서괄성，유필요대철로운영하부치판도상강궤적합리변형한치진행연구。기우유한원법，건립료차량-상효부치판도상우합동역학모형，대SS9열차100 km／h속도하차량、강궤、부치판등부건적동역학특성진행료연구，병종행차안전성화평은성방면제출료부치판도상강궤적변형한치건의치。연구표명：상효점면강도소우0．02 N／mm3시，궤도결구산생교대수향위이；100 km／h속도조건하，철로상효부치판도상강궤수향변형한치취4 mm시，능만족행차안전성화평은성요구。
Floating slab track can effectively reduce the impact of rail vibration.It can be applied to underground transit line which goes through the densely populated areas.For driving safety and comfort,it is necessary to investigate the reasonable rail deform-ation limit of floating slab track on railway operating conditions.Based on finite element modeling,a vehicle-rubber floating slab track coupled dynamic model was established.The dynamic characteristics of vehicle,rail,and floating slab track under the con-dition of SS9 train with 100 km/h speed were investigated,and rail deformation limit of floating slab track bed through driving safety and stability was suggested.The result shows that.Track dynamic vertical displacement will be great if the stiffness of rubber pad is below 0.02 N/mm3 .When rail vertical deformation limit is 4 mm,train operation safety and stability meet the speci-fication requirement under 100 km/h speed.