列车套缸式液气缓冲器缓冲能量计算方法  

Calculation Method for Cushioning Energy of Telescopic Cylindrical Type Hydro-pneumatic Buffer in Train

作　　者：何忠韬[1] 

机构地区：[1]兰州交通大学机电工程学院,甘肃兰州730070

出　　处：《液压气动与密封》2010年第12期25-28,共4页Hydraulics Pneumatics & Seals

基　　金：甘肃省自然科学基金项目(0803RJZA021)

摘　　要：本文提出了一种用于高速重载铁路车辆的套缸式液气缓冲器,在相同的缓冲器外形结构尺寸约束下,套缸式液气缓冲器比前后缸式液气缓冲器具有更大的缓冲能力。推导了这种套缸式液气缓冲器的缓冲能量和能量吸收率计算公式,分析了套缸式液气缓冲器内外缸之间的压力差、缓冲能量吸收率、内外缸强度、外缸初充气压力与节流孔径的关系,结合实际车辆连挂的要求,给出了套缸式液气缓冲器缓冲能量数值算例。In the article,it is put forward a kind of Telescopic Cylindrical Type Hydro-pneumatic Buffer for high-speed and overloading railway vehicle.In the same buffer contour structure size constraint,Telescopic Cylindrical Type Hydro-pneumatic Buffer has more cushioning energy than Front-behind Cylinder Type Hydro-pneumatic Buffer.It is deduced the cushioning energy and the computational formula for energy absorption rate about Telescopic Cylindrical Type Hydro-pneumatic Buffer,analyzed the relations among the differential pressure of inside cylinder and outside cylinder,the absorptivity of cushioning energy,the intensity of two cylinders,the initial inflation pressure in outside cylinder and the orifice size,and given the numerical examples of cushioning energy combining with the requirements of actual vehicles.

关 键 词：铁路车辆 液气缓冲器 缓冲能量 

分 类 号：U260.342[机械工程—车辆工程]