摘要
针对鼓式制动器中制动鼓存在的散热困难的问题,采用有限元方法进行分析。通过改变制动鼓的结构,增加制动鼓内表面气体流速,来增加散热。开发建立了制动鼓的有限元模型,首先对原有制动鼓进行鼓内表面流速检测,然后结合干气密封中的螺旋槽结构,对鼓式制动鼓结构进行开槽,分别对槽深和开槽个数进行探究,再次对其内表面空气流速等进行分析,以便确定改进后的结果。
In view of the difficulty in heat dissipation of the brake drum in drum brakes,the finite element method is used for analysis.By changing the structure of the brake drum and increasing the air flow rate on the inner surface of the brake drum,heat dissipation is increased.The finite element model of the brake drum is established,and the velocity of the inner surface of the original brake drum is detected.Combined with the spiral groove structure in the dry gas seal,grooves are made on the drum brake drum structure.The groove depth and the number of grooves are explored respectively,and the air flow velocity on the inner surface is analyzed to determine the improved results.
作者
成英豪
徐万红
CHENG Yinghao;XU Wanhong(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China)
出处
《机械工程师》
2021年第3期33-35,共3页
Mechanical Engineer
关键词
制动鼓
有限元
结构改进
干气密封
等效应力
brake drum
finite element
structure improvement
dry gas seal
equivalent stress
