Dynamic Aeroelasticity of a Trapezoidal Wing Using Enhanced Piston Theory

Aravinth, Dinesh and Shinde, Paritosh and Misra, A and M S, Mahesh (2018) Dynamic Aeroelasticity of a Trapezoidal Wing Using Enhanced Piston Theory. In: 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 8–12 January 2018, Kissimmee, Florida.

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The dynamic aeroelastic behavior of a trapezoidal wing usin g a newly formulated 3D enhanced piston theory(EPT) is studied in this paper. The str uctural equation is built from von K ́arm ́an’s large deformation theory and 3D aerodyn amic EPT is derived from the convected wave equation, expressed as a power series exp ansion in terms of inverse Mach number. Special case of 3D EPT satisfy the classical pist on theory formulation. The Jacobian transformation along, with Rayleigh-Ritz app roach has been used to convert the equations for a cantilevered, trapezoidal plate struct ure into a cantilevered, square plate structure to solve for the nonlinear oscillation of a fl uttering plate through numerical integration. Several cases are studied by changing the swee p angle of the trapezoidal plate for flutter calculation at different Mach numbers from low to h igh supersonic free stream conditions

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Item Type: Conference or Workshop Item (Paper)
Subjects: Others > Metallurgy Metallurgical Engineering
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: Team Library
Date Deposited: 17 Jan 2018 04:06
Last Modified: 17 Jan 2018 04:06
URI: http://raiith.iith.ac.in/id/eprint/3722
Publisher URL: https://doi.org/10.2514/6.2018-1443
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