Damped dynamic response of strengthened beams by composite coats under moving force by FEM
| Autor: | Sabiha Tekili, Ali Daouadji, El Mostafa Daya, Zitouni Azari, Abdennacer Chemami, Youcef Khadri |
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| Rok vydání: | 2018 |
| Předmět: |
Damping ratio
Materials science Composite number Moving load Equations of motion 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology Structural dynamics Finite element method Vibration 020303 mechanical engineering & transports 0203 mechanical engineering General Materials Science 0210 nano-technology Beam (structure) |
| Zdroj: | Matériaux & Techniques. 106:206 |
| ISSN: | 1778-3771 0032-6895 |
| Popis: | This paper presents a numerical study of the free and damped forced vibration of simply-supported beams with composite coats subjected to a moving load by use of finite elements method. Three types of beam configurations, aluminum, composite and strengthened beam are investigated. The equation of motion of the beam is solved using the modal superposition method and integrated by applying the Newmark time integration procedure. Good agreements were achieved between the FEM and analytical solutions. The damped dynamic response, critical velocities and the dynamic amplification factor of the beam are calculated for different parameters such as the thickness ratio, the fiber orientation of the coat and damping ratio. |
| Databáze: | OpenAIRE |
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