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1. |
Record Nr. |
UNINA9910699645603321 |
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Autore |
Bir Gunjit S |
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Titolo |
User's guide to MBC3 [[electronic resource] ] : multi-blade coordinate transformation code for 3-bladed wind turbines / / G.S. Bir |
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Pubbl/distr/stampa |
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Golden, CO : , : National Renewable Energy Laboratory, , [2010] |
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Descrizione fisica |
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1 online resource (iv, 24 pages) : digital, PDF file |
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Collana |
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Soggetti |
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Wind turbines - Mathematical models |
Wind power - Research |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed Sept. 27, 2010). |
"September 2010." |
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Nota di bibliografia |
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Includes bibliographical references (page 24). |
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Sommario/riassunto |
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The dynamics of wind turbine rotor blades are conventionally expressed in rotating frames attached to the individual blades. The tower-nacelle subsystem though, sees the combined effect of all rotor blades, not the individual blades. Also, the rotor responds as a whole to excitations such as aerodynamic gusts, control inputs, and tower-nacelle motion--all of which occur in a nonrotating frame. Multi-blade coordinate transformation (MBC) helps integrate the dynamics of individual blades and express them in a fixed (nonrotating) frame. MBC involves two steps: transforming the rotating degrees of freedom and transforming the equations of motion. Reference 1 details the MBC operation. This guide summarizes the MBC concept and underlying transformations. This guide also explains how to use MBC3, a MATLAB-based script we developed to perform multi-blade coordinate transformation of system matrices for three-bladed wind turbines. |
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2. |
Record Nr. |
UNISA996546834003316 |
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Autore |
Li Wei |
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Titolo |
R-Calculus, IV : propositional logic / / Wei Li and Yuefei Sui |
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Pubbl/distr/stampa |
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Singapore : , : Springer, , [2023] |
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©2023 |
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ISBN |
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9789811986338 |
9789811986321 |
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Edizione |
[1st ed. 2023.] |
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Descrizione fisica |
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1 online resource (264 pages) |
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Collana |
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Perspectives in Formal Induction, Revision and Evolution, , 2731-3697 |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Introduction -- R-calculus for simplified propositional logics -- R-calculi for tableau/Gentzen deduction systems -- R-calculi RQ1Q2/RQ1Q2 -- R-calculi RQ1iQ2j/RQ1iQ2j -- R-Calculi: RY1Q1iY2Q2j/RY1Q1iY2Q2j -- R-calculi for supersequents -- R-calculi for propositional logic. |
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Sommario/riassunto |
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This fourth volume of the book series combines propositional logic and R-calculus for a new point of view to consider belief revision. It gives the R-calculi for propositional logic, description logics, propositional modal logic, logic programming, ⇝-propositional logic, semantic networks, and three-valued logic, etc.. Applications of R-calculus in logic of supersequents are also given. This book offers a rich blend of theory and practice. It is suitable for students, researchers and practitioners in the field of logic. . |
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