COUPLED TRANSVERSAL AND LONGITUDINAL VIBRATIONS OF A PLANE MECHANICAL SYSTEM WITH TWO IDENTICAL BEAMS
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2016, Vol 61, Issue 3
Abstract
The paper aims to highlight some vibrations properties for a plane beams structure, where transverse vibrations are coupled with the longitudinal vibrations. In engineering practice it often happens that identical parts are used in projects for reasons which relate to design time, material costs and execution time. Considering only the statics approach, these types of systems have been studied in strength of materials. In the case of dynamics, some comments on the calculation of symmetrical systems have been made in the literature, but a systematic study does not yet exist; some particular cases were treated in the literature. In this paper we aim to study a symmetrical system of beams that presents vibrations in the system’s plane. The determination of properties of such systems would decrease the computational time and effort and would automatically imply lower development and testing costs and would increase the accuracy of calculus.
Authors and Affiliations
SORIN VLASE, MIRCEA MIHĂLCICĂ, MARIA LUMINIȚA SCUTARU, CRISTI NĂSTAC
EFFECT OF HEAT CONDUCTION ON MACHINE PARAMETERS OF FRICTION STIR WELDED ALUMINIUM ALLOYS
W.M. Thomas at The Welding Institute of UK in 1991 invented friction stir welding for the welding of aluminium alloys and as time progress use of light weight material and others which were difficult to weld by other con...
SUR LA DEFORMATION D'UN TUBE CYLINDRIQUE
Une proposition de loi non-linéaire régissant le comportement des matériaux élastiques isotropes consiste souvent à généraliser la loi linéaire de Hooke, valable en petites déformations, par l’adjonction de termes supplé...
ESTIMATION OF OUT OF PLANE SHEAR MODULI FOR HONEYCOMB CORES WITH MODAL FINITE ELEMENT ANALYSES
The main problem in analyzing honeycomb structures is the substantial computational effort that has to be spent in modelling and analyzing such a structure with a multi-cell construction core by maintaining the actual ge...
A NATURAL SONIC COMPOSITE – THE ATMOSPHERE
The atmosphere represents a natural sonic composite exhibiting the full band-gaps and localized modes around inhomogeneities given by the wind-velocity jumps. The paper analyses a barometric model including inhomogeneiti...
RISK ASSESSMENT OF SYSTEMS DURING DEVELOPMENT PHASE: AN APPROACH BASED ON LIFETIME FUNCTIONS
Quantifying the time-dependent risk associated with complex engineering projects is an essential task to ensure the success of these projects. Low technology readiness and maturity levels and uncertainties associated wit...