人字闸门支枕垫块接触应力分布与磨损分析  

Contact stress distribution andabrasion of pillow block for miter gate

作　　者：张明松 陈梓奇 王恩恒 蔡振宇 张琰彬 ZHANG Mingsong;CHEN Ziqi;WANG Enheng;CAI Zhenyu;ZHANG Yanbin(College of Mechanical&Power Engineering,China Three Gorges University,Yichang 443002,China;Hubei Key Laboratory of Hydroelectric Machinery Design&Maintenance,China Three Gorges University,Yichang 443002,China)

机构地区：[1]三峡大学机械与动力学院,湖北宜昌443002 [2]三峡大学,水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002

出　　处：《水运工程》2023年第11期143-147,203,共6页Port & Waterway Engineering

基　　金：水电机械设备设计与维护湖北省重点实验室开放基金(2017KJX01)。

摘　　要：为研究人字闸门支枕垫块接触应力分布与接触面磨损情况,以支枕垫块二维模型为研究对象,基于经验公式和Archard磨损计算通式,建立支枕垫块接触应力与接触面磨损量计算模型,利用有限元分析方法获取不同主横梁支反力作用下支枕垫块接触应力大小与分布情况,以及不同转速、过盈量条件下的接触面磨损量变化分布规律。结果表明:支枕垫块接触应力大小在初始线接触位置两侧近似呈对称分布,随着主横梁支反力的增大,接触应力呈现出递增趋势;人字闸门的应力主要集中在主横梁轴线上,并在梁之间急剧减小;接触面磨损量随着闸门转速和支枕垫块配合过盈量的增加而呈现递增趋势,最大磨损深度向下游侧偏移。To study the contact stress distribution and contact surface abrasion of the pillow block for the miter gate,we build the calculation model of the contact stress and contact surface of the pillow block based on the empirical formula and the general formula of Archard abrasion calculation,taking the two-dimensional model of the pillow block as the research object.Then we obtain the magnitude and distribution of contact stress of the pillow block under different support reaction forces of main beams,and the change distribution of contact surface abrasion under different rotational speeds and interference conditions.The results show that the contact stress of the pillow block is approximately symmetrically distributed on both sides of the initial line contact position,and increases with the rising support reaction force of the main beam.The stress of the miter gate is mainly concentrated on the axis of the main beam and decreases sharply among the beams.The abrasion amount of the contact surface rises with the increase in the rotational speed of the gate and the fit interference of the pillow block,and the maximum abrasion depth shifts to the downstream side.

关 键 词：支枕垫块 接触应力 磨损分析 有限元法 

分 类 号：U641.331[交通运输工程—船舶及航道工程] TV663[交通运输工程—船舶与海洋工程]