噪声与振动控制2017，Vol.37Issue(4)：192-196,5.DOI:10.3969/j.issn.1006-1355.2017.04.038
动车组空气弹簧节流孔直径优化研究
Optimization of Air Spring Orifice Diameter in EMU
摘要
Abstract
In order to study the dynamic performance change of the secondary suspension systems of the vehicles due to the replacement of damper by orifice, the dynamic model of an EMU is established based on the dynamic test of the EMU and the dynamic characteristic test of its air springs. The vertical stability and vibration acceleration are analyzed to select the orifice diameter of the air spring. Results show that the orifice diameter of the air spring has the influence on both vertical damping and vertical stiffness of the air spring. When analyzing the vertical stability, the stiffness and damping under 0.7 Hz excitation frequency can be selected to equivalently replace the non-linear characteristic of the air spring. After the vertical damper is replaced by the orifice, the RMS (Root Mean Square) of the vertical vibration can be effectively reduced. When the speed of the train exceeds 150 km/h, the advisable damping range of the vertical damper is 10 Ns/mm-20 Ns/mm, and the advisable orifice diameter is 12 mm-16 mm. After comparing the two damping ways, the orifice damping method is recommended.关键词
振动与波/空气弹簧/节流孔直径/动力学试验/空气弹簧试验/垂向平稳性Key words
vibration and wave/air spring/orifice diameter/dynamic experiment/air spring experiment/vertical stability分类
机械制造引用本文复制引用
冯扬,池茂儒,高红星,周橙..动车组空气弹簧节流孔直径优化研究[J].噪声与振动控制,2017,37(4):192-196,5.基金项目
国家自然科学基金资助项目(51475388) （51475388）
高铁联合基金资助项目(U1334206) （U1334206）
