The response of the system "beam _ foundation" on sudden changes of boundary conditions

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Travush, V.I.^1 ; Gordon, V.A.^2 ; Kolchunov, V.I.^3 ; Leontiev, E.V.^3

Russian Academy of Architecture and Construction Science, 4, Bolshaya Dmitrovka street, Moscow

107031, Russia^1

Orel State University Named after I.S. Turgenev, Komsomolskaya Street, 95, Orel

302026, Russia^2

South West State University, street 50 let Oktyabrya, 94, Kursk

305040, Russia^3

关键词: Beam foundations;    Cantilever rod;    Computational model;    Dynamic process;    Edge displacement;    Elastic foundation;    Forced oscillations;    Mathematic model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012130/pdf
DOI  :  10.1088/1757-899X/456/1/012130

来源: IOP

【 摘 要 】

The mathematic model of dynamic process into beam, which lies on the elastic foundation Winkler's type, at sudden change of boundary conditions caused by destruction of supporting is presented in the paper. Solution of static bending problem for such beam clamped at two ends is the initial state for dynamic process of it forced oscillations as cantilever rod at destruction of supports limiting edge displacements. The effect, which caused by sudden transformation of computational model of constructively nonlinear system 'beam - foundation' at different combinations of mechanical and geometrical parameters of beam and foundation, is investigated.