基于抬腿的岸边集装箱起重机轮压和系固载荷研究  

Research on wheel pressure and mooring load of quayside container crane based on leg lifting

作　　者：孙亚平 张锋锋 王宝海 Sun Yaping;Zhang Fengfeng;Wang Baohai

机构地区：[1]上海振华重工(集团)股份有限公司,上海200125

出　　处：《起重运输机械》2024年第23期52-59,111,共9页Hoisting and Conveying Machinery

基　　金：科技创新行动计划;上海市科委科研项目(23XD1434500);上海振华重工科研项目(9908000302)。

摘　　要：计算岸边集装箱起重机轮压稳定性的传统做法是基于结构刚性假设,但实际结构有一定变形,所以负轮压会引起抬腿。文中将岸边集装箱起重机的抬腿分为约束抬腿和自由抬腿,引入抗压刚度、抬腿刚度的概念,在分析位移关系的基础上以暴风条件下海陆侧均有系固的典型约束抬腿情况为例,提出了一种4步计算法,分析各步骤中抬腿与轮压、系固力、刚度关系变化关系,综合后导出了理论计算公式。经Ansys有限元计算验证,该方法具有很好的精度。在此基础上给出了自由抬腿的理论计算结果,算例表明,抬腿算法能有效调节、优化轮压与系固载荷。最后论述了抬腿对安全性问题,通过Ansys软件计算,证明了暴风时的约束抬腿,适量的抬腿不会引起脱轨问题,且结构应力增加也可以接受。When calculating the stability of wheel pressure of quayside container crane,the traditional method is based on the assumption of structural rigidity,but the actual structure will be deformed to some extent,so negative wheel pressure will cause leg lifting.In this paper,the leg lifting of quayside container crane is divided into constrained leg lifting and free leg lifting,and the concepts of compressive stiffness and leg lifting stiffness are introduced.Based on the analysis of displacement relationship,a four-step calculation method is proposed by taking the typical constrained leg lifting with fastening on both land and sea sides under storm as an example.After analyzing the relationship between leg lifting and wheel pressure,binding force and stiffness in each step,the theoretical calculation formula was derived.This method has good accuracy,which is verified by Ansys finite element calculation.On this basis,the theoretical calculation results of free leg lifting were obtained.The example showed that the leg lifting algorithm can effectively adjust and optimize the wheel pressure and tie-down load.Finally,safety issues about leg lifting are discussed.The calculation through Ansys software proved that a proper amount of restrained leg lifting will not cause derailment during storm,and the increase of structural stress is acceptable.

关 键 词：岸边集装箱起重机 轮压 抬腿 系固 刚度 稳定性 

分 类 号：U653.921[交通运输工程—港口、海岸及近海工程]