2500 kJ海上作业打桩锤液压系统液阻结构参数分析与实验  

Analysis and Experiment on Hydraulic Resistance Structure Parameters of 2500 kJ Offshore Piling Hammer Hydraulic System

作　　者：周海勇 王琳 郑博寒 黄增 何小龙 孙灿兴 ZHOU Hai-yong;WANG Lin;ZHENG Bo-han;HUANG Zeng;HE Xiao-long;SUN Can-xing(Mechanical Engineering College,Yanshan University,Qinhuangdao,Hebei 066004;Shanghai Haiyue Hydraulic Electromechanical Engineering Co.,Ltd.,Shanghai 200031;Citic Heavy Industries Co.,Ltd.,Luoyang,Henan 471003)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]上海海岳液压机电工程有限公司,上海200031 [3]中信重工机械股份有限公司,河南洛阳471003

出　　处：《液压与气动》2023年第6期64-70,共7页Chinese Hydraulics & Pneumatics

基　　金：国家高技术船舶科研项目(MC-202014-S01)。

摘　　要：针对2500 kJ海上打桩锤的打击能量控制、系统响应速度、回路压力切换冲击等问题,通过仿真模型分析,从结构方面解决问题。首先介绍打桩锤工作原理,通过AMESim建立准确的液压系统仿真模型;其次通过设定进/回油路主阀及其先导阀内液阻仿真参数,分析不同液阻配比对打桩锤锤击的频率、能量和高度的影响,根据结论对开合时序设置和液阻结构设计给出指导性意见,并得到最优液阻选配方案;最后,根据2500 kJ打桩锤海试实验结果曲线,与同工况下仿真曲线进行对比,曲线趋势基本一致,证明相关结论对海上作业液压打桩锤优化设计起到一定的指导作用。Aiming at the problems of 2500 kJ offshore piling hammer such as strike energy control,system response speed,and loop pressure switching impact,this paper proposes to solve the problem from the structural aspect through simulation model analysis.Firstly,the working principle of piling hammer is introduced,and an accurate hydraulic system simulation model is established through AMESim.Secondly,by setting the inlet/return oil circuit main valve and its pilot valve internal liquid resistance simulation parameters,the influence of different resistance ratios on the frequency,energy and height of pile-hammering is analyzed,and guiding opinions are given on timing arrangement and resistance structure design,and the optimal resistance selection scheme is obtained.Finally,the curve of the 2500 kJ piling hammer sea trial experiment compared with the simulation curve under the same working conditions,the curve trend is basically the same,which proves that conclusion can guide the optimization design of hydraulic pile hammer in offshore operation.

关 键 词：海上打桩锤 结构原理 AMESIM仿真 液压系统参数 

分 类 号：TH137[机械工程—机械制造及自动化]