TORSIONAL ACTUATION OF ORTHOTROPIC BEAM USING INCLINED PIEZOELECTRIC PATCHES | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 106, Volume 15, 15th International Conference on Applied Mechanics and Mechanical Engineering., May 2012, Pages 1-25 PDF (3.66 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.2012.37269 | ||
| Authors | ||
| M. A. Elshafei; A. A. Omer; A. M. Farid | ||
| Egyptian Armed Forces. | ||
| Abstract | ||
| ABSTRACT The objective of this research is to develop a finite element model for the analysis of the static response of a composite compressor blade subjected to extension, transverse, and torsion loads in addition to the torsion actuation due to the piezoelectric patches. The equation of motion is derived based on classical beam theory with warping effect is taken into consideration, using the principle of the virtual displacement of the structure system. A one dimensional linear isoperimetric element with Lagrange and hermit cubic shape functions is used to model the axial and transverse deformation. A two end nodes and an intermediate one as well are implemented for modeling the torsion deformation. The bending, torsion and axial coupling are introduced in the stiffness and mass matrices. The electric potential is treated as a generalized electric coordinates like the generalized displacement coordinates. A MATLAB interactive code is developed to solve a blade with mechanical and electrical loads. The obtained results are found reasonable. | ||
| Keywords | ||
| Finite element method; compressor blade design; composite materials mechanics; Warping; structural analysis | ||
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