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![Fig. 5. Resonance of CS ([0/±30/90]s) composite beam due to (a) end...](profile/Nigatu-Tilahun/publication/353281935/figure/fig3/AS:1163972044701696@1654523969264/Resonance-of-CS-0-30-90s-composite-beam-due-to-a-end-force-along-z-EFz-and-b_Q320.jpg)
![Fig. 6. Resonance of SAPL45 ([45/-45/45/-45/45]) composite beam due to EFy.](profile/Nigatu-Tilahun/publication/353281935/figure/fig4/AS:1163972044685318@1654523969469/Resonance-of-SAPL45-45-45-45-45-45-composite-beam-due-to-EFy_Q320.jpg)
In this study, the free and forced vibration analysis of fiber reinforced plastic composite beam has been conducted using numerical method (finite element analysis) and mathematical modeling in MATLAB. Mechanical and physical properties of the beam material are found using strength of material and semiempirical approach to get the equivalent proper...
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... some of these parameters, the analysis results are done using both analytical and numerical analysis. Table 3 shows the mode shapes of the analysis of the FRP cantilever beam under those parameters conducted in ABAQUS/CAE. Figure 3 shows the results of the effects of angle of orientation of fiber on natural frequency of fiber reinforced plastic composite (E-glass Epoxy with V f = 0.6). Natural frequencies for Mode 1, Mode 2, Mode 3 and Mode 5 decreased from 0° to 70° and slightly increased from 70° to 90° angle of orientation due to value of axial modulus. ...Similar publications
Mechanical vibrations adversely affect mechanical components, and in the worst case, lead to serious accidents by breaking themselves. To suppress vibrations, various studies have been conducted on vibration isolation, suppression, and resistance. In addition, technologies to actively suppress vibration have been rapidly developed in recent years,...
The use of finite element method software allows the modal and spectral analysis of complex structures with an accessible computational cost. In contrast, with the theory of damped systems of a degree of freedom, solutions can be obtained analytically that describe with greater generality the vibrations of structures subjected to variable forces ov...
The main reason that affects the discomfort in a driving vehicle is the vibration response. The human body vibration leads to many malfunctions in both comfort and performance in human health. As a result, the human body’s simulation in sitting posture in the driving vehicle has a strategic relationship for all Tires and vehicles manufacturers. The...
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... Engineers prioritize the reduction of vibrations in these structures as a fundamental requirement. One effective method to achieve this goal is by strategically adjusting the natural frequencies of the structure to diverge from the frequency of the excitation force [Tilahun & Lemu, 2021]. ...
This paper present of experimental and numerical study of nano Al2O3 cantilever beam for forced vibration, addressing an unexplored area in the existing literature. The proposed nano composite cantilever beam is modeled with hole and crack. The study is based on history loading calculation and composite morphology a global parameter, the transverse crack in nano composite cantilever beam was studied and analyzed experimentally using a four-channel dynamic signal acquisition (NI 9234) module for making high-accuracy measurements and its ideal for vibration applications. The relationship between the dispersion and interaction of the alumina nanoparticles within the cantilever beam and morphology of the solid, hole and crack composite has been identified. Furthermore, the influence of particles Al2O3 at different concentrations (0%, 1%, 3% and 4%) have been studied respectively. Supporting results proved that the crack and hole depth increases with increases of history loading. Nanoparticles dispersed within the specimen can increase energy dissipation during vibration, leading to improved damping characteristics. For future work, it is recommended to utilize statistical frequency domain input, such as Power Spectral Density (PSD), for assessing the structural response instead of employing time history loading.
UPDATED CURRICULUM VITAE
Dr. Osama Mohammed Elmardi Suleiman Khayal
Associate Professor in Mechanical Engineering
Faculty of Engineering and Technology
Nile Valley University, Atbara, Sudan
