内燃动车组动力包双层隔振参数设计  

Design of Double-layer Vibration Isolation Parameters for Power Pack of DMU

作　　者：郑伟 王思明[2] 谷理想 孙维光 ZHENG Wei;WANG Siming;GU Lixiang;SUN Weiguang(CRRC Qingdao Sifang Locomotive&Rolling Stock Co.,Ltd.,Qingdao 266311,China;State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266311 [2]西南交通大学轨道交通运载系统全国重点实验室,四川成都610031

出　　处：《铁道车辆》2024年第5期95-102,共8页Rolling Stock

摘　　要：在全部转速(1100~1800 r/min)工况下,对某内燃动车组动力包双层隔振参数进行了设计,并通过整车试验对所设计的隔振系统参数进行了验证。计算结果表明:机组的振动烈度随隔振器的动刚度增加而增大,一级隔振器对机组的振动烈度影响较二级的大,振动烈度随阻尼比增大而减小;车体吊挂处受到的动反力随隔振器动刚度和阻尼比增大而增大。经过设计后,各转速条件下机组振动烈度均小于28 mm/s,优于B级,机组对车体的垂向动反力总和小于100 N;在时速40 km线路运行条件下,根据标准UIC 513:1994进行评价,舒适度等级在2级以上,评定为舒适,说明设计方法可行。This paper proposes a design for the double-layer vibration isolation parameters of a DMU power pack operating at full speed(1100~1800 r/min),which were validated by the whole-vehicle test.Calculation results show that:the vibration intensity of the pack increases with an increase in the dynamic stiffness of the vibration isolator.The vibration isolator level I has a greater impact on the vibration intensity of the pack than level II,and the vibration intensity decreases with the increase in damping ratio.The dynamic reaction at force-bearing points increases with the increment in dynamic stiffness and damping ratio of the vibration isolator.With this design,the vibration intensity of the pack under all speeds is less than 28 mm/s,surpassing that of class B,and the total vertical dynamic reaction of the pack on the car body is less than 100 N.When operating at 40 km/h,the comfort level is higher than level 2 according to the standard UIC 513:1994,which is rated as comfortable,indicating that the design is feasible.

关 键 词：内燃动车组 动力包 隔振 振动烈度 动反力 舒适度 

分 类 号：U270.2[机械工程—车辆工程]