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浏览/检索结果: 共7条，第1-7条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序作者升序作者降序提交时间升序提交时间降序题名升序题名降序 A multiscale finite element method for the localization analysis of homogeneous and heterogeneous saturated porous media with embedded strong discontinuity model 期刊论文 INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2017, 卷号: 112, 页码: 1439-1472 作者:  Lu, Mengkai;  Zhang, Hongwu;  Zheng, Yonggang;  Zhang, Liang 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/03 multiscale finite elementmethod  porous media  localization  embedded strong discontinuity  enhanced coarse element  numerical base function   A Multiscale Computational Formulation for Gradient Elasticity Problems of Heterogeneous Structures 期刊论文 INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS, 2016, 卷号: 13, 期号: 5 作者:  Fu, Ping;  Liu, Hui;  Chu, Xihua;  Xu, Yuanjie 收藏  |  浏览/下载：7/0  |  提交时间：2019/12/05 Gradient elasticity  multiscale finite element method  heterogeneity  numerical base function  size effect   Extended multiscale finite element method: its basis and applications for mechanical analysis of heterogeneous materials 期刊论文 COMPUTATIONAL MECHANICS, 2014, 卷号: 53, 页码: 659-685 作者:  Zhang, H. W.;  Liu, Y.;  Zhang, S.;  Tao, J.;  Wu, J. K. 收藏  |  浏览/下载：15/0  |  提交时间：2019/12/09 Extended multiscale finite element method (EMsFEM)  Numerical base function  Heterogeneous material  Algorithm complexity   Multilevel Adaptive Algorithm for Multiscale Analysis of Heterogeneous Materials 期刊论文 JOURNAL OF ENGINEERING MECHANICS, 2014, 卷号: 140, 页码: - 作者:  Zhang, HongWu;  Liu, Yin;  Zhang, Sheng;  Chen, BiaoSong 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/09 Multilevel adaptive analysis  Extended multiscale finite-element method (EMSFEM)  Numerical base function (NBF)  Hierarchical linear equation solver   Structure buckling load interval analysis of supercavitating projectile (EI CONFERENCE) 会议论文 2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011, June 12, 2011 - June 15, 2011, Guiyang, China Zhou L.; An W. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 As a result of supercavitating projectiles with high underwater velocity  their structures undergo high longitudinal force. It is necessary to perform structure buckling load interval analysis because the uncertainty of structural own parameters should be considered. Critical buckling load of supercavitating projectiles is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each uncertainty variable are deduced  and the interval of structure critical buckling load is calculated by interval analysis and convex model methods. Numerical results show that the nominal value  lower and upper bounds of critical buckling load increase with the increment of the ratio of base diameter to cavitator diameter. And the uncertainty degree of basic variables should be controlled as far as possible in the project for high reliability. 2011 IEEE.   Structure buckling reliability analysis of supercavitating projectile (EI CONFERENCE) 会议论文 2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China Zhou L.; Yang C.; Jia H. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 Because the underwater velocity of supercavitating projectile is very high  its structure undergo high longitudinal force. It is necessary to perform structure buckling reliability analysis because the randomicity of structural own parameters and flow parameters should be considered. Critical buckling load of supercavitating projectile is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each random variable are deduced  and structural buckling reliability index is calculated by limit step length iteration method. Numerical results show that the critical buckling load and structural buckling reliability index increase with the increase of the ratio of base diameter to cavitator diameter. And structural buckling reliability index increase with the decrease of velocity coefficient. 2011 IEEE.   Robust transceiver design for multiuser MIMO downlink with channel uncertainties 期刊论文 2010, 2010 Wei Miao; Yunzhou Li; Xiang Chen; Shidong Zhou; Jing Wang 收藏  |  浏览/下载：4/0