On the Accuracy and Stability of a Variety of Differential Quadrature Formulations for the Vibration Analysis of Beams

• المؤلفون الرئيسيون: NG, C. H. W., ZHAO, Yibao, XIANG, Y., WEI, G. W.
• التنسيق: text
• اللغة: English
• منشور في: Institutional Knowledge at Singapore Management University 2009
• الموضوعات: Stability analysis; Local adaptive differential quadrature method; Differential quadrature method; Beam; Vibration analysis; Physical Sciences and Mathematics
• الوصول للمادة أونلاين: https://ink.library.smu.edu.sg/lkcsb_research/1708; https://ink.library.smu.edu.sg/context/lkcsb_research/article/2707/viewcontent/ZhaoYB2009DqfVibrBeams.pdf

The occurrence of spurious complex eigenvalues is a serious stability problem in many differential quadrature methods (DQMs). This paper studies the accuracy and stability of a variety of different differential quadrature formulations. Special emphasis is given to two local DQMs. One utilizes both f...