文献详情
An Improved Differential Quadrature Time Element Method
文献类型期刊
作者Qin, Mingbo[1];Xing, Yufeng[2];Guo, Jing[3]
机构
通讯作者Xing, YF (reprint author), Beihang Univ, Inst Solid Mech, 37 Xueyuan Rd, Beijing 100191, Peoples R China.
来源信息年:2017  卷:7  期:5  
期刊信息APPLIED SCIENCES-BASEL影响因子和分区  ISSN:2076-3417
关键词differential quadrature rule; direct integration method; time element; symplectic
摘要A Differential Quadrature Time Element Method (DQTEM) was proposed by the author and co-worker, its drawback is the need of larger storage capacity since the dimension of the coefficients matrix for solution is the product of both spatial degrees of freedom and temporal degrees of freedom. To solve this problem, an improved DQTEM is developed in this work, in which the differential quadrature method is used to discretize both spatial and time domains, sequentially, and the dimension of the coefficients matrix is greatly reduced without losing solution accuracy. Theoretical studies demonstrate the improved DQTEM features superiorities including higher-order accuracy, adequate stability and symplectic characteristics. The improvement of DQTEM is validated by extensive comparisons of the present DQTEM with the original DQTEM.
收录情况SCIE(WOS:000404449000039)  
所属部门航空科学与工程学院
DOI10.3390/app7050471
学科化学综合;材料科学:综合;物理:应用
人气指数17
浏览次数17
基金National Natural Science Foundation of China [11372021, 11672019, 37686003]; Research Fund for the Doctoral Program of Higher Education of China [20131102110039]
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