水下管桩切割装置设计研究  

Design and research on underwater pile cutting device

作　　者：刁学聪 邵建新[1] 张旭东[1] 姚建南 DIAO Xuecong;SHAO Jianxin;ZHANG Xudong;YAO Jiannan(School of Mechanical Engineering,Nantong University,Nantong 226019,China)

机构地区：[1]南通大学机械工程学院,南通226019

出　　处：《现代制造工程》2023年第11期149-154,62,共7页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助项目(51805273);江苏高校“青蓝工程”资助项目(苏教师函[2021]11号)。

摘　　要：为提高水下管桩切割作业的自动化程度,降低劳动风险和成本,设计了一种切割装置,用于切割内径为800~1 000 mm的管桩。使用SolidWorks软件对该切割装置进行了三维建模,分析了该切割装置各部分组成及工作过程。使用ANSYS Workbench软件对水下管桩切割装置切割机构的框架结构进行了静力学分析和模态分析,得到了切割机构的变形量、应力、固有频率、临界转速和振型等特性。在保证切割装置的刚度与强度条件下,以切割装置质量最轻为优化目标,对中心轴的内径、走线孔圆倒角进行优化设计,并对优化前后装置的性能进行了比较,结果表明,中心轴优化后,装置整体刚度、强度不变,中心轴质量相比优化前质量减少了32.8%,优化效果较好。In order to improve the automation of underwater pipe pile cutting operations and reduce labor risks and costs,a cutting device was designed for cutting pipe piles with an inner diameter of 800~1000 mm.The three-dimensional structure model of the device was established by SolidWorks,and the components and working process of the device were described.The static and modal analysis of frame structure of the cutting mechanism of underwater pipe pile cutting device was made in ANSYS Workbench.The characteristics of the cutting frame,such as displacement,stress,natural frequency,critical speed and vibration mode,were obtained by static and modal analysis.Under the condition of ensuring the rigidity and strength of the cutting device,the inner diameter of the central shaft and the round chamfer of the trace hole were optimized with the lightest mass of the cutting mechanism as the optimization goal,and the mechanism performance before and after optimization was compared.The results show that after the optimization of the central axis,the overall stiffness and strength of the mechanism remain unchanged,and the mass of the central axis is reduced by 32.8%compared with the initial mass,and the optimization effect is better.

关 键 词：水下切割装置 静力学分析 模态分析 优化设计 

分 类 号：TH16[机械工程—机械制造及自动化]