某型海洋打桩锤沉桩过程动力学响应仿真

秦仙蓉; 沈健花; 赵坤; 张氢; 孙远韬

doi:10.13433/j.cnki.1003-8728.2016.0301

某型海洋打桩锤沉桩过程动力学响应仿真

doi: 10.13433/j.cnki.1003-8728.2016.0301

1.
同济大学机械与能源工程学院, 上海 201804

基金项目:

国家自然科学基金项目(51075304,51205292)资助

详细信息

作者简介:
秦仙蓉(1973-),教授,博士,研究方向为机械系统动力学及工程结构抗风,tjqin@tongji.edu.cn

计量
- 文章访问数: 224
- HTML全文浏览量: 26
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2014-12-16
- 刊出日期: 2016-03-05

Simulation of Dynamic Responses in Pile-driving Process of a Marine Pile Hammer

1.
School of Mechanical Engineering, Tongji University, Shanghai 201804, China

摘要

摘要: 基于有限元方法与应力波理论,以近海工程海洋打桩锤为研究对象,分析了沉桩过程中冲击机械系统的动力学响应。基于有限元分析软件LS-dyna,建立某型海洋打桩锤沉桩过程的有限元模型,还原模拟了海洋打桩锤的某次滩涂的施工打桩作业,分析了冲击缓冲装置在海洋打桩锤系统中的作用,讨论了沉桩过程中锤芯和桩内部的能量传递规律,预测了关键部件的动力学响应。有限元预测结果与现场实际沉桩记录充分接近,表明文中建立的模型和仿真结果是正确的。
- 海洋打桩锤 /
- 冲击机械系统 /
- 有限元分析 /
- 动力学响应 /
- 应力波
Abstract: Based on the finite element method and stress wave theory, taking offshore marine pile hammer as the research object, the dynamic responses in pile-driving process of a marine pile hammer are discussed in this paper. By simulating the pile-driving process of the marine pile hammer with LS-dyna (a finite element analysis software), the function of the impact buffering part in the pile-driving process is analyzed. Transmission of energy between hammer and pile is also discussed and dynamic responses of important parts are predicted. Compared with the recorded results, the simulation results and analysis model are proved correct.
- marine pile hammer /
- mechanical impact system /
- finite element method /
- dynamic response /
- stress wave

HTML全文

参考文献(12)

[1]	高大钊,赵春风,徐斌.桩基础的设计方法与施工技术[M].北京:机械工业出版社,1998 Gao D Z, Zhao C F, Xu B. Design method and construction technology for pile foundation[M]. Beijing: China Machine Press, 1998 (in Chinese)
[2]	Masoumi H R, Degrande G. Numerical modeling of free field vibrations due to pile driving using a dynamic soil-structure interaction formulation[J]. Journal of Computational and Applied Mathematics, 2007,215(2):503-511
[3]	Masouleh S F, Fakharian K. Application of a continuum numerical model for pile driving analysis and comparison with a real case[J]. Computers and Geotechnics, 2007,35(3):406-418
[4]	胡均平,刘武波,刘成沛.液压锤打桩动态过程有限元分析[J].振动与冲击,2012,31(16):128-133 Hu J P, Liu W B, Liu C P. FEM analysis of dynamic process of piling using hydraulic hammer[J]. Journal of Vibration and Shock, 2012,31(16):128-133 (in Chinese)
[5]	王娜娜.打桩下沉过程中的动力响应研究[D].天津:天津大学,2011 Wang N N. Research on dynamic response of pile driving[D]. Tianjin: Tianjin University, 2011 (in Chinese)
[6]	方志华,程建华.预制桩打桩过程的非线性有限元分析[J].内蒙古科技大学学报,2009,28(2):184-188 Fang Z H, Cheng J H. The non-linear finite element analysis in the process of piling[J]. Journal of Inner Mongolia University of Science and Technology, 2009,28(2):184-188 (in Chinese)
[7]	胡小江,谷立臣.打桩锤液压系统的设计及动态仿真[J].机床与液压,2005,(1):77-79 Hu X J, Gu L C. Theoretical research on new type hydraulic system of hydraulic pile hammers[J]. Machine Tool & Hydraulics, 2005,(1):77-79 (in Chinese)
[8]	刘德顺,李夕兵.冲击机械系统动力学[M].北京:科学出版社,1999 Liu D S, Li X B. Dynamics of impact mechanical systems[M]. Beijing: Science Press, 1999 (in Chinese)
[9]	江礼茂,寇绍全,陆岳屏.应力波理论在桩基工程中的应用[J].力学进展,1990,20(1):47-56 Jiang L M, Kou S Q, Lu Y P. The applications of stress-wave theory to pile engineering[J]. Advances in Mechanics, 1990,20(1):47-56 (in Chinese)
[10]	陶云辉,刘昌清,姚旭东.基于ABAQUS的桩-土动力仿真分析[J].路基工程,2009,(2):133-134 Tao Y H, Liu C Q, Yao X D. Pile-soil dynamics simulation analysis based on ABAQUS[J]. Subgrade Engineering, 2009,(2):133-134 (in Chinese)
[11]	尚晓东,苏建宇,王化锋.ANSYS/LS-dyna动力分析方法与工程实例[M].北京:中国水利水电出版社,2006 Shang X D, Su J Y, Wang H F. Dynamic analysis method and engineering examples[M]. Beijing: China Water Power Press, 2006 (in Chinese)
[12]	Smith E A L. Pile-driving analysis by the wave equation[J]. Journal of Soil Mechanics and Foundations Division, 1960,86(4):35-64