Design and modal analysis of bulkhead for a trainer aircraft
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 4
Abstract
A new method of bulkhead model is done by CATIA V5. The method of creating a model helps to determine the internal forces, deflections, and stress distribution along the bulkhead using finite element software packages MSC NASTRAN, and the shear flow distribution in the adjacent skin. Several bulkheads next to each other can be analyzed simultaneously if the study of interaction becomes necessary. The results of this method compare favorably with the results of a three-dimensional finite element stress analysis and test measurements. The method can be used with any existing two-dimensional finite element computer program containing just a beam element, and it does not require large computer storage. Defective bulkhead of a jet trainer aircraft was selected and is modified in such a manner that the defect can be minimized. For this purpose the defective bulkhead was imported to CATIA, and then is redesigned to meet the requirement. After redesigned the model, it has been imported to MSC PATRAN in order to perform preprocessing and post processing. The Problem is solved using MSC NASTRAN and the criteria for static strength requirements and frequency of free vibration due to its self excitations are satisfied.
Authors and Affiliations
A. Vasudevan, M. K. Karthik, K. Manoj Kumar, A. Shabana
Keywords
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