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INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016 open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15 |
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| Paper Title: | Dynamic Analysis of Symmetrical & Unsymmetrical Channel Section - Beams |
| Authors Name: | G. Jayasimha , K. Sridevi |
| Unique Id: | IJSDR1709002 |
| Published In: | Volume 2 Issue 9, August-2017 |
| Abstract: | ABSTRACT: In an effort to save weight while still remaining high strength, many contemporary structural systems are designed with lower margins of safety than predecessors. The criterion of minimum weight design is particularly prevalent in the design of aircraft, missile, and spacecraft vehicles. One obvious means of obtaining a high strength, minimum weight design is the use of light, thin-walled structural members of high strength alloys. Thin- walled beams of open sections such as I, Z, Channel and angle sections are frequently used for intricate structures in spacecrafts. Due to low torsional rigidity thin-walled beams of open sections, the problem of torsional vibrations and stability is of prime interest. Mechanical vibrations produce increased stress, energy loss and noise that should be considered in the design stages if these undesirable effects are to be avoided, or to be kept minimum. The present work particularly deals with dynamic analysis of lengthy uniform thin-walled uniform C section beams and tapered C section beams of open sections. Graphite Epoxy have been increas¬ingly used over the past few decades in a variety of structures that require high ratio of stiffness and strength to weight. In the present thesis the dynamic behavior of a thin-walled C-section of symmetrical and un symmetrical shapes studied in detail. This model accounts for the coupling of flexural and torsional modes for arbitrary laminate and various boundary conditions are also discussed in detail. A displacement-based one-di¬mensional finite element model is developed to predict natural frequencies and corresponding vibration modes for a thin-walled composite beam. Numerical results are obtained for thin-walled composite beams addressing the effects of modulus ratio, height-to-thickness ratio, and boundary conditions on the vibra¬tion frequencies and mode shapes of the composites. Using ANSYS 15.0, the modal and harmonic analysis are carried out and presented in graphical form. |
| Keywords: | Harmonic, mode, frequency, amplitude |
| Cite Article: | "Dynamic Analysis of Symmetrical & Unsymmetrical Channel Section - Beams", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.2, Issue 9, page no.9 - 21, August-2017, Available :http://www.ijsdr.org/papers/IJSDR1709002.pdf |
| Downloads: | 000337067 |
| Publication Details: | Published Paper ID: IJSDR1709002 Registration ID:170650 Published In: Volume 2 Issue 9, August-2017 DOI (Digital Object Identifier): Page No: 9 - 21 Publisher: IJSDR | www.ijsdr.org ISSN Number: 2455-2631 |
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