کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1897238 1534059 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental versus theoretical robustness of rotating solutions in a parametrically excited pendulum: A dynamical integrity perspective
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Experimental versus theoretical robustness of rotating solutions in a parametrically excited pendulum: A dynamical integrity perspective
چکیده انگلیسی

The objective of this paper is showing how global safety arguments can be fruitfully used to interpret experimental results of a pendulum parametrically excited by wave motion. In fact, the results of an experimental campaign developed with the aim of simulating sea-waves energy production by a parametric pendulum show that rotations exist in a region which is smaller than the theoretical one. This discrepancy can be partially attributed to the experimental approximations and constraints, but it has a deeper theoretical motivation. By comparing the experimental results with the dynamical integrity profiles we have found that experimental rotations exist only where a measure of dynamical integrity accounting for both attractor robustness and basin compactness is large enough, so that they can support experimental imperfections leading to changes in initial conditions.

Research highlights
► Experimental detection of rotations of pendulum excited by water waves.
► Construction of erosion profiles and erosion maps of pendulum dynamics.
► Interpreting experimental results by means of dynamical integrity concepts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica D: Nonlinear Phenomena - Volume 240, Issues 9–10, 15 April 2011, Pages 814–824
نویسندگان
, ,