[1]于士甲,张鹏,李彦斌,等.基于动态子模型法的结构动响应预示方法[J].东南大学学报(自然科学版),2017,47(2):325-330.[doi:10.3969/j.issn.1001-0505.2017.02.021]
 Yu Shijia,Zhang Peng,Li Yanbin,et al.Structural response prediction based on dynamic sub-modelling method[J].Journal of Southeast University (Natural Science Edition),2017,47(2):325-330.[doi:10.3969/j.issn.1001-0505.2017.02.021]
点击复制

基于动态子模型法的结构动响应预示方法()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第2期
页码:
325-330
栏目:
其他
出版日期:
2017-03-20

文章信息/Info

Title:
Structural response prediction based on dynamic sub-modelling method
作者:
于士甲1张鹏1李彦斌2吴邵庆1费庆国2
1东南大学土木工程学院, 南京210096; 2东南大学机械工程学院, 南京 211189
Author(s):
Yu Shijia1 Zhang Peng1 Li Yanbin2 Wu Shaoqing1 Fei Qingguo2
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2School of Mechanical Engineering, Southeast University, Nanjing 211189, China
关键词:
子模型法 局部响应 运算效率 切割边界 复杂结构
Keywords:
sub-modelling method local response computational efficiency cutting boundary complex structure.
分类号:
V414.8;O32
DOI:
10.3969/j.issn.1001-0505.2017.02.021
摘要:
研究了基于动态子模型法的结构动响应预示方法基本理论,并建立了可应用于复杂切割边界条件下的匹配插值方法.首先以壳-壳及壳-体2种子模型为研究对象,探究动态子模型法在2种模型中的动响应分析精度及计算效率.以复杂卫星模型为研究对象,验证了动态子模型法在复杂结构中的应用性.研究结果表明:在保证局部运算精度的情况下,子模型法可以极大幅提高运算效率;壳-壳子模型法和壳-体子模型法通过1层切割边界节点和3层切割边界节点即可保证较高响应预示精度;在复杂结构中整体模型网格与子模型网格大小相差较大的情况下,子模型法仍能获得较理想的响应预示结果.
Abstract:
Based on the theoretical derivation, the basic formula of the dynamic response of sub-modelling method was obtained based on structural dynamic stiffness under complex cutti4ng boundary conditions. Firstly, a sub-modelling method was studied by using 2 sub-models of shell-shell and shell-solid as a research object based on a simply supported plate. The accuracy and the high efficiency in the 2 sub-models were researched. Then, the good applicability of dynamic sub-modelling method on the complex structure was proved by using a satellite model as a research object. The results show that the computational efficiency is improved with the sub-modelling method under a premise of local computation precision. The high precision can be achieved with only 1 layer and 3 layers of boundary nodes when using shell-shell and shell-body sub-modelling methods, respectively. Fine results can also be obtained under the condition of a sharp incompatibility between the whole model and the sub-model on complex structures.

参考文献/References:

[1] Aygül M, Al-Emrani M, Urushadze S. Modelling and fatigue life assessment of orthotropic bridge deck details using FEM[J]. International Journal of Fatigue, 2012, 40(7):129-142. DOI:10.1016/j.ijfatigue.2011.12.015.
[2] Dai F, Xia K, Zheng H, et al. Determination of dynamic rock mode-Ⅰ fracture parameters using cracked chevron notched semi-circular bend specimen[J]. Engineering Fracture Mechanics, 2011, 78(15):2633-2644. DOI:10.1016/j.engfracmech.2011.06.022.
[3] Sun L, Zhao G, Ma X. Adaptive generation and local refinement methods of three-dimensional hexahedral element mesh[J]. Finite Elements in Analysis & Design, 2012, 50(1):184-200. DOI:10.1016/j.finel.2011.09.009.
[4] 王文亮, 杜作润. 动态子结构法的国内进展[J]. 力学进展, 1985, 15(1):23-32.
  Wang Wenliang, Du Zuorun. Advances of dynamic substructural method[J]. Advances in Mechanics, 1985, 15(1):23-32.(in Chinese)
[5] 吴诰珪, 王继承, 许季. 子模型法在客车车身结构改进中的应用[J]. 华南理工大学学报(自然科学版), 2003, 31(2): 52-55. DOI:10.3321/j.issn:1000-565X.2003.02.012.
Wu Gaogui, Wang Jicheng, Xu Ji. Application of sub-modeling in improving the bus-body structure[J]. Journal of South China University of Technology(Natural Science Edition), 2003, 31(2):52-55. DOI:10.3321/j.issn:1000-565X.2003.02.012. (in Chinese)
[6] 史战新. 基于 Ansys 子模型法的肘板结构优化[J]. 舰船科学技术, 2014, 36(8): 19-26. DOI:10.3404/j.issn.1672-7649.2014.08.004.
Shi Zhanxin. The bracket structure optimization based on Ansys sub-model method[J]. Ship Science and Technology, 2014,36(8): 19-26. DOI:10.3404/j.issn.1672-7649.2014.08.004. (in Chinese)
[7] Zarzalejos J M, Fernández E, Caixas J, et al. Bolted ribs analysis for the ITER vacuum vessel using finite element submodelling techniques[J]. Fusion Engineering and Design, 2014, 89(7): 1790-1794. DOI:10.1016/j.fusengdes.2014.04.025.
[8] Mandal N K, Dhanasekar M. Sub-modelling for the ratchetting failure of insulated rail joints[J]. International Journal of Mechanical Sciences, 2013, 75(75):110-122. DOI:10.1016/j.ijmecsci.2013.06.003.
[9] Citarella R, Cricrì G. Three-dimensional BEM and FEM submodelling in a cracked FML full scale aeronautic panel[J]. Applied Composite Materials, 2014, 21(3):557-577. DOI:10.1007/s10443-014-9384-5.
[10] Hussein M, Hunt H, Kuo K, et al. The use of sub-modelling technique to calculate vibration in buildings from underground railways[J]. Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail & Rapid Transit, 2013, 229(3):303-314. DOI:10.1177/0954409713511449.
[11] 赵大亮, 李爱群, 丁幼亮, 等. 基于子模型法的大跨斜拉桥扁平钢箱梁应力分析[J]. 计算力学学报, 2008, 25(3): 326-332.
  Zhao Daliang, Li Aiqun, Ding Youliang, et al. Stress analysis on steel-box girder of long span cable-stayed bridge based on submodel method[J]. Chinese Journal of Computational Mechanics, 2008, 25(3):326-332.(in Chinese)
[12] Ramsay A C A, Maunder E A W. Sub-modelling and boundary conditions with p-type hybrid-equilibrium plate-membrane elements[J]. Finite Elements in Analysis & Design, 2006, 43(2): 155-167. DOI:10.1016/j.finel.2006.08.002.
[13] 齐朝晖, 孔宪超, 李坦. 复杂系统子结构界面缝合方法[J]. 工程力学, 2013, 30(9):10-15.
  Qi Zhaohui, Kong Xianchao, Li Tan. Substructure technique in the analysis of large-scale structure based on interfaces seaming[J]. Engineering Mechanics, 2013, 30(9):10-15.(in Chinese)

备注/Memo

备注/Memo:
收稿日期: 2016-09-04.
作者简介: 于士甲(1992—),男,硕士生;费庆国(联系人),男,博士,教授,博士生导师,qgfei@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(11402052, 11572086)、教育部新世纪优秀人才支持计划资助项目(NCET-11-0086)、江苏省自然科学基金资助项目(BK20140616).
引用本文: 于士甲,张鹏,李彦斌,等.基于动态子模型法的结构动响应预示方法[J].东南大学学报(自然科学版),2017,47(2):325-330. DOI:10.3969/j.issn.1001-0505.2017.02.021.
更新日期/Last Update: 2017-03-20