Forced vibration analysis of warping considered curved composite beams resting on viscoelastic foundation

Authors : Umit Necmettin ARIBAS, Merve ERMIS, Akif KUTLU, Nihal ERATLI, Mehmet Hakkı OMURTAG

Pages : 1093-1105

View : 19 | Download : 8

Publication Date : 2018-12-01

Article Type : Research Paper

Abstract :The forced vibration analysis of warping considered curved composite Timoshenko beams resting on viscoelastic foundation is investigated via the mixed finite element method. Rocking is considered both for Winkler and Pasternak viscoelastic foundations. Two nodded curved element has 12 degrees of freedom. Problems are solved in frequency domain via Laplace transform and modified Durbin’s algorithm is used for back transformation to time domain. Warping considered average torsional rigidities of the composite cross-sections are calculated numerically by ANSYS and verified by the literature. After the verification of the algorithms, as benchmark examples, curved composite beams on rocking considered viscoelastic Pasternak foundation are solved.
Keywords : Curved composite beam, Forced vibration, Finite element method, Torsional rigidity, Viscoelastic foundation