液压振动锤振动沉桩土体参数辨识与仿真  

Identification of soil parameters on vibratory pile driving of hydraulic vibration hammer

作　　者：朱建新[1,2] 丁曲[1,2] 张秋阳[1] 

机构地区：[1]中南大学现代复杂装备设计与极端制造教育部重点实验室,长沙410083 [2]湖南山河智能机械股份有限公司,长沙410100

出　　处：《现代制造工程》2011年第6期120-122,共3页Modern Manufacturing Engineering

基　　金：国家863高技术研究发展计划基金资助项目(2003AA430200)

摘　　要：介绍了液压振动锤的工作原理。建立了锤-桩-土系统的单自由度模型。以共振理论为依据,为实现自适应振动沉桩,提出一种在线测量土体参数的方法。仿真研究结果表明:采用带遗忘因子的增广最小二乘算法模型能够较好地辨识出土体的参数。Describes the working principle of hydraulic vibration hammer. The single degree of freedom model of hammer-pile-soil was established. The application of adaptive vibratory pile was brought forward innovatively based on resonance theory, and a method of on-line measuring soil parameters was also put forward. The results show that the model of extended least squares algo- rithm with a forgetting factor can identify the soil parameters on-line well.

关 键 词：液压振动锤 振动沉桩 自适应 土体参数 在线辨识 

分 类 号：TH113.1[机械工程—机械设计及理论]