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自适应重复学习算法在岩土动态应力试验中的应用
Authors
徐志祥
杨凯杰
柳恒
范永波
Publication date
1 January 2017
Publisher
Abstract
岩土实验机的执行机构与被压试样都具有非线性、时变特性,针对周期性动态应力波形的跟踪问题,在结合传统PID控制算法基础上,提出一种自适应重复学习控制算法。依据不同的控制过程增加了不同的计算模型和控制参数,进而设计了自适应重复学习控制器,通过斜率差值法和误差均值法对比例增益和偏差进行自适应调整,通过重复学习对自适应结果进行优化。通过实际实验验证了该算法的稳定性和收敛性,从而保证了非线性负载所承受的动态应力能够准确跟踪设定的动态波形。目前,该算法已应用于1000 kN多功能三轴试验仪正弦波和三角波的波形跟踪
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Institute Of Mechanics,Chinese Academy of Sciences
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oai:dspace.imech.ac.cn:311007/...
Last time updated on 18/12/2019
Institute Of Mechanics,Chinese Academy of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.imech.ac.cn:311007/...
Last time updated on 12/02/2018