Demasi L. Introduction to Unsteady Aerodynamics and Dynamic Aeroelasticity 2024
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Demasi L. Introduction to Unsteady Aerodynamics and Dynamic Aeroelasticity 2024
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Textbook in PDF format
Aeroelasticity is an essential discipline for the design of airplanes, unmanned systems, and innovative configurations.
This book introduces the subject of unsteady aerodynamics and dynamic aeroelasticity by presenting industry-standard techniques, such as the Doublet Lattice Method for nonplanar wing systems. “Introduction to Unsteady Aerodynamics and Dynamic Aeroelasticity'' is a useful reference for aerospace engineers and users of NASTRAN and ZAERO but is also an excellent complementary textbook for senior undergraduate and graduate students.
The theoretical material includes:
· Fundamental equations of aerodynamics.
· Concepts of Velocity and Acceleration Potentials.
· Theory of small perturbations.
· Virtual displacements and work, Hamilton's Principle, and Lagrange's Equations.
· Aeroelastic equations expressed in the time, Laplace, and Fourier domains.
· Concept of Generalized Aerodynamic Force Matrix.
· Complete derivation of the nonplanar kernel for unsteady aerodynamic analyses.
· Detailed derivation of the Doublet Lattice Method.
· Linear Time-Invariant systems and stability analysis.
· Rational function approximation for the generalized aerodynamic force matrix.
· Fluid-structure boundary conditions and splining.
· Root locus technique.
· Techniques to find the flutter point: k, k-E, p-k, non-iterative p-k, g, second-order g, GAAM, p, p-L, p-p, and CV methods