کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
510056 | 865738 | 2015 | 14 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An unconditionally stable implicit time integration algorithm: Modified quartic B-spline method An unconditionally stable implicit time integration algorithm: Modified quartic B-spline method](/preview/png/510056.png)
• Proposing an implicit unconditionally stable time integration method.
• Using quartic B-spline basis function.
• Good accuracy compared to the methods in the literature.
• The scheme can achieve lower numerical amplitude dissipation and period dispersion.
In Ref. [1] an effective conditionally stable explicit time integration scheme using quartic B-spline function was proposed for solving the problems in structural dynamics. The current paper presents a scheme where this method is developed to an implicit unconditionally stable time integration method. Using quartic B-spline basis function, this method gained second order of acceleration at each time-step. In this research, in order to applying the stabilization process, first, a series of implicit standard formulas were derived from previous formulation. Then after inserting two controlling parameters γγ and ββ in the standard formulas, unconditional stability is guaranteed.
Journal: Computers & Structures - Volume 153, June 2015, Pages 98–111