[1]赵启林,朱晓文,孙宝俊.考虑误差影响的力学参数反分析神经网络方法研究[J].东南大学学报(自然科学版),2003,33(5):601-604.[doi:10.3969/j.issn.1001-0505.2003.05.014]
 Zhao Qilin,Zhu Xiaowen,Sun Baojun.Research of a neural network method for mechanical parameter back analysis considering influence of the errors[J].Journal of Southeast University (Natural Science Edition),2003,33(5):601-604.[doi:10.3969/j.issn.1001-0505.2003.05.014]
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考虑误差影响的力学参数反分析神经网络方法研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第5期
页码:
601-604
栏目:
自动化
出版日期:
2003-09-20

文章信息/Info

Title:
Research of a neural network method for mechanical parameter back analysis considering influence of the errors
作者:
赵启林12 朱晓文1 孙宝俊1
1 东南大学土木工程学院, 南京 210096; 2 解放军理工大学工程兵工程学院, 南京 210007
Author(s):
Zhao Qilin12 Zhu Xiaowen1 Sun Baojun1
1 College of Civil Engineering, Southeast University, Nanjing 210096, China
2 Engineering Institute of Engineering Corps, PLA University of Science and Technology, Nanjing 210007, China
关键词:
误差影响 反分析 力学参数 神经网络方法
Keywords:
error influence back analysis mechanical parameter neural network method
分类号:
TP183
DOI:
10.3969/j.issn.1001-0505.2003.05.014
摘要:
通过求偏导技术将反分析的参数误差分别表示为模型误差与测量误差的函数,利用这些函数研究了模型误差与测量误差在力学参数反分析神经网络方法中的传递过程以及影响反分析结果的影响因素.研究结果说明:输入变量的选择严重影响力学参数反分析的精度,选取力学参数灵敏度大的测点位移作为神经网络的输入变量,可以减小模型误差与测量误差对反分析结果的影响.这对提高力学参数反分析的实用性与可信性有重要意义.
Abstract:
In this paper, functions of the mechanical parameter errors with model errors and measure errors were built with derivative. With these functions, the transferring process of model errors and measure errors in neural network methods and the factors to affect the outcome of back analysis are researched. The research shows that if nodal displacements of high mechanical parameter sensitivity are chosen as input variables of the neural network, the influence of model errors and measure errors on the results of mechanical parameters back analysis can be diminished. This result will advance mechanical parameter back analysis.

参考文献/References:

[1] Kavaragh K,Clough R.Finite element application in the characterization of elastic solid [J].Int J Solids Structures,1972(7):11-23.
[2] Gioda G,Locatelli L.Back analysis of the measurements performed during the excavation of a shallow tunnel in sand [J].Int J for Numerical and Analytical Methods in Geo-Mechanics,1999,23(12):1407-1425.
[3] 王纯瑾.反分析在岩土工程中的应用[J].贵州地质,1990,24(3):261-264.
  Wang Chunjin.The usage of back analysis in geotechnique engineering [J].Geology in Guizhou,1990, 24(3):261-264.(in Chinese)
[4] 李宁,伊森倩.边坡安全监测的仿真反分析[J].岩土力学与工程学报,1996,15(1):9-18.
  Li Ning,Yi Senqian.Back analysis of the safety factor for slope [J].Chinese Journal of Rock Mechanics and Engineering,1996,15(1):9-18.(in Chinese)
[5] 杨志法,刘竹华.位移反分析在地下工程设计中的初步应用[J].地下工程,1981(2):20-24.
  Yang Zhifa,Liu Zhuhua.The preliminary usage of back analysis in geo-technique engineering [J].Underground Engineering,1981(2):20-24.(in Chinese)
[6] 孙道恒,胡俏,徐灏.力学反问题的神经网络分析法[J].计算结构力学及其应用,1996,13(3):308-312.
  Sun Daoheng,Hu Qiao,Xu Hao.Inverse analysis of mechanics based on neural networks [J].Structral Analysis Mechanics,1996,13(3):308-312.(in Chinese)
[7] Bastian A,Gasos J.Type Ⅰ structure identification approach using feedforward neural networks[A].In:Proceedings of the 1994 IEEE International Conference on Neural Networks[C].New Jersey,1994.3256-3260.
[8] 邓建辉,李褚芬,葛修润.BP网络和遗传算法在岩石边坡位移反分析中的应用 [J].岩石力学与工程学报,2001,20(1):1-5.
  Deng Jianhui,Li Zhufen,Ge Xiurun.The usage of BP network and GA in rock slope back analysis [J].Chinese Journal of Rock Mechanics and Engineering,2001,20(1):1-5.(in Chinese)
[9] 樊昆,刘宇敏,张艳华.基于人工神经网络的岩土工程力学参数反分析 [J].河海大学学报,1998,26(4):98-102.
  Fan Kun,Liu Yumin,Zhang Yanhua.Inverse analysis of rock soil mechanics parameters based on neural network [J].Journal of Hohai University,1998,26(4):98-102.(in Chinese)
[10] 杨林德,吴阑,周汉杰.反演分析中量测误差的传递与仪表选择的研究 [J].土木工程学报,2000,33(1):77-82.
  Yang Linde,Wu Lan,Zhou Hanjie.A study on transmission of reading errors in back analysis and selection of measureing instruments[J]. China Civil Engineering Journal,2000,33(1):77-82.(in Chinese)
[11] 余成学,陈尚法,陈胜宏.复杂岩体边坡参数位移反演中断层和测点布置的影响分析 [J].岩石力学与工程学报,1999,17(增):868-871.
  Yu Chengxue,Chen Shangfa,Chen Shenghong.The influence of arrangement of transducers in back analysing complex rock slope [J]. Chinese Journal of Rock Mechanics and Engineering,1999,17(supp):868-871.(in Chinese)

备注/Memo

备注/Memo:
作者简介: 赵启林(1972—),男,博士,讲师,zhaohsql@263.net.
更新日期/Last Update: 2003-09-20