Paper number 1151
|
ON THE VIBRATION OF COMPOSITE BAR IN PLAN MOTION |
M.Marin1 and D.Bolcu2
1,2Department of Applied Mechanics, Faculty of Mechanics, University of Craiova
13, street A.I.Cuza, Craiova 1100, Romania
| Summary | This paper presents the vibration analysis of the dynamic behavior of the composite structure. The mathematical model is realised using both the Hamilton's variational principle and some of the fundamental theorems of classical mechanics (the theorem of the impulse derivative and kinetic moment). Successively applying the Laplace transform and the sinuses and cosinuses finite Fourier transforms to the considered mathematical model, the dynamic response is obtained. This dynamical answer is numerical solved by taking account of studied base as a kinetic element of the mechanism. Experimental analysis of vibrations realised on the real model made possible this data's comparing with theoretical results. The analytical process presented in the paper could be extended for the other dynamical composite structures too; the errors covering the interval of 5-10%. |
Keywords | vibrations analysis, mathematical model, transversal deformation. |