Dynamic analysis of laminated composite beam using Timoshenko beam theory

Abstract

The uses of laminated composite beams are increasing day by day in many industries. This laminated composite beam has been exposed under different dynamic loadings in mechanical operation. Therefore, the dynamic investigation of laminated composite beams (LCB) is very much necessary to forecast the catastrophe fail of the LCB components. At present, dynamic investigation of the LCB is carried out by the determining of fundamental frequency and mode shape. The special attentions like; in the design of geometry, orientation of fibres, layup of sections and boundary conditions are also analysed with referring the dynamical loadings and industry uses. The analysis procedures and results are validated with the reference results using finite element analysis software. Present research deals with the consequence of different volume fraction, boundary conditions and geometrical variation like aspect ratio, geometric ratio and length of E-glass polyester LCB. By altering different stacking sequences and these effects on mechanical properties as well as natural frequency are also analysed.

Single channel blind source separation of rolling bearing compound faults based on self-learning sparse decomposition and feature mode decomposition

“…As the most common used key supporting component in rotating machinery, the safe running of rolling element bearing is very important. In recent years, amounts of studies relating to rolling bearing have been arising, which include dynamics, [1][2][3] simulation, [4][5] vibration monitoring [6][7] and fault detection based on self-learning artificial intelligent techniques [8]. As one research branch of fault diagnosis for rolling bearings, the extreme case of underdetermined blind source separation (UBSS) is to separate each source signal from a single channel of observed signal, which has important engineering and implications: 1) The structure of mechanical equipment is often compact, which brings great changes to the installation of sensors.…”

Analysis of longitudinal and torsional vibration of mining scraper conveyor under the over bending section working condition

“…Some experts and scholars have done a lot of work on flexible body dynamics, bending, finite element simulation and so on, which provide a theoretical basis for this study, such as references [11][12][13][14][15][16].…”

Dynamic response of a space flexible arm with a moving mass

“…Jena, Parhi and other authors [10][11][12][13][14][15] studied cracked structures subjected to moving mass problems. Besides, Parida, Jena and others [16][17][18][19][20][21] investigated the dynamic and static problems of composite structures.…”