کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9667080 | 863106 | 2005 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The discrete null space method for the energy consistent integration of constrained mechanical systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
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چکیده انگلیسی
The present work deals with energy consistent time stepping schemes for finite-dimensional mechanical systems with holonomic constraints. The proposed procedure is essentially based upon the following steps: Firstly, the index three differential-algebraic equations corresponding to the constrained mechanical system are directly discretized. Secondly, the discrete Lagrange multipliers are eliminated by using a discrete null space matrix. In many cases it is feasible to further reduce the number of unknowns by employing specific reparametrizations. The proposed method entails a number of advantageous features such as size-reduction and improved conditioning of the resulting system of algebraic equations. It is shown that the newly developed method is well-suited for both open-loop and closed-loop multibody systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 194, Issues 50â52, 1 December 2005, Pages 5159-5190
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 194, Issues 50â52, 1 December 2005, Pages 5159-5190
نویسندگان
Peter Betsch,