带式烧结机台车篦条疲劳分析  

Fatigue Analysis of the Grate Bar in the Band Sintering Machine Trolley

作　　者：齐铁力[1,2] QI Tie-li(Key Lab of Intelligent Equipment Digital Design and Process Simulation of Hebei Province,Tangshan University,Tangshan 063000,China;Department of Mechanical and Electrical Engineering,Tangshan University,Tangshan 063000,China)

机构地区：[1]唐山学院河北省智能装备数字化设计及过程仿真重点实验室,河北唐山063000 [2]唐山学院机电工程系,河北唐山063000

出　　处：《唐山学院学报》2021年第6期28-33,共6页Journal of Tangshan University

基　　金：唐山市人才资助项目(A202002031)。

摘　　要：以带式烧结机台车中的篦条为研究对象,运用有限元方法对两种工况下的篦条进行热应力分析,确定了影响篦条失效的主要因素,明确了篦条屈服强度随温度变化的规律。选取两工况下等效应力最大的节点作为疲劳位置,对篦条进行疲劳分析,确定了篦条易疲劳的薄弱部位;并通过与篦条实际寿命相对比,验证了软件计算篦条疲劳寿命的准确性。Taking the grate bars in the band sintering machine trolley as the research object,the thermal stress of grate bars under two working conditions is analyzed with finite element method.In this way,the main factors affecting the failure of the grate bars are determined,and the pattern of the yield strength changing with temperature is made clear.The node with the maximum equivalent stress under the two working conditions being selected as the fatigue position,a fatigue analysis is carried out and the weak parts prone to fatigue are determined.Then,the results are compared with the actual life of the grate bars and the accuracy of their fatigue life calculated by the software is verified.

关 键 词：带式烧结机台车 篦条 有限元方法 热应力 疲劳特性 

分 类 号：TF046.4[冶金工程—冶金物理化学] O346[理学—固体力学]