Finite element computation of nonlinear modes and frequency response of geometrically exact beam structures
نویسندگان
چکیده
An original method for the simulation of dynamics highly flexible slender structures is presented. The are modeled via a finite element (FE) discretization geometrically exact two-dimensional beam model, which entirely preserves geometrical nonlinearities inherent in such systems where rotation cross-section can be extreme. FE equation solved by combination harmonic balance (HBM) and asymptotic numerical (ANM) methods. novel solving scheme rooted frequency domain capable computing both structure’s response under periodic external forces as well its nonlinear modes. overview proposed strategy outlined simulations shown discussed detail several test cases.
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ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2023
ISSN: ['1095-8568', '0022-460X']
DOI: https://doi.org/10.1016/j.jsv.2022.117534