A Modern Course in Aeroelasticity

Aeroelasticity is the study of flexible structures situated in a flowing fluid. Its modern origins are in the field of aerospace engineering, but it has now expanded to include phenomena arising in other fields such as bioengineering, civil engineering, mechanical engineering and nuclear engineering. The present volume is a teaching text for a first, and possibly second, course in aeroelasticity. It will also be useful as a reference source on the fundamentals of the subject for practitioners. In this third edition, several chapters have been revised and three new chapters added. The latter include a brief introduction to Experimental Aeroelasticity', an overview of a frontier of researchNonlinear Aeroelasticity', and the first connected, authoritative account of `Aeroelastic Control' in book form.
The authors are drawn from a range of fields including aerospace engineering, civil engineering, mechanical engineering, rotorcraft and turbomachinery. Each author is a leading expert in the subject of his chapter and has many years of experience in consulting, research and teaching.

Zusammenfassung
Its modern origins are in the field of aerospace engineering, but it has now expanded to include phenomena arising in other fields such as bioengineering, civil engineering, mechanical engineering and nuclear engineering.

Inhalt

2. Static aeroelasticity.- 2.1 Typical section model of an airfoil.- 2.2 One dimensional aeroelastic model of airfoils.- 2.3 Rolling of a straight wing.- 2.4 Two dimensional aeroelastic model of lifting surfaces.- 2.5 Nonairfoil physical problems.- 2.6 Sweptwing divergence.- 3. Dynamic aeroelasticity.- 3.1 Hamilton's principle.- 3.2 Lagrange's equations.- 3.3 Dynamics of the typical section model of an airfoil.- 3.4 Aerodynamic forces for airfoilsan introduction and summary.- 3.5 Solutions to the aeroelastic equations of motion.- 3.6 Representative results and computational considerations.- 3.7 Generalized equations of motion for complex structures.- 3.8 Nonairfoil physical problems.- 4. Nonsteady aerodynamics of lifting and non-lifting surfaces.- 4.1 Basic fluid dynamic equations.- 4.2 Supersonic flow.- 4.3 Subsonic flow.- 4.4 Representative numerical results.- 4.5 Transonic flow.- 5. Stall flutter.- 5.1 Background.- 5.2 Analytical formulation.- 5.3 Stability and aerodynamic work.- 5.4 Bending stall flutter.- 5.5 Nonlinear mechanics description.- 5.6 Torsional stall flutter.- 5.7 General comments.- 5.8 Reduced order models.- 5.9 Computational stalled flow.- 6. Aeroelastic problems of civil engineering structures.- 6.1 Vortex shedding.- 6.2 Galloping.- 6.3 Divergence.- 6.4 Flutter and buffeting.- 7. Aeroelastic response of rotorcraft.- 7.1 Blade dynamics.- 7.2 Stall flutter.- 7.3 Rotor-body coupling.- 7.4 Unsteady aerodynamics.- 8. Aeroelasticity in turbomachines.- 8.1 Aeroelastic environment in turbomachines.- 8.2 The compressor performance map.- 8.3 Blade mode shapes and materials of construction.- 8.4 Nonsteady potential flow in cascades.- 8.5 Compressible flow.- 8.6 Periodically stalled flow in turbomachines.- 8.7 Stall flutter in turbomachines.- 8.8 Chokingflutter.- 8.9 Aeroelastic eigenvalues.- 8.10 Recent trends.- 9. Unsteady transonic aerodynamics and aeroelasticity.- Summary.- Nomenclature.- 9.1 Introduction.- 9.2 Linear / nonlinear behavior in unsteady transonic aerodynamics.- 9.3 Viable alternative solution procedures to finite difference methods.- 9.4 Nonuniqueness.- 9.5 Effective, efficient computational approaches for determining aeroelastic response.- 9.6 Nonlinear flutter analysis in the frequency domain.- 9.7 Concluding remarks.- 10. Experimental aeroelasticity.- 10.1 Review of structural dynamics experiments.- 10.2 Wind tunnel experiments.- 10.3 Flight experiments.- 10.4 The role of experimentation and theory in design.- 11. Nonlinear aeroelasticity.- Abstract.- 11.1 Introduction.- 11.2 The physical domain of nonlinear aeroelasticity.- 11.3 The mathematical consequences of nonlinearity.- 11.4 Representative results.- 11.5 The future.- 12. Aeroelastic control.- 12.1 Objectives and elements of aeroelastic control.- 12.2 Modeling for aeroelastic control.- 12.3 Control modeling of the typical section.- 12.4 Control design for the typical section.- Appendix I A primer for structural response to random pressure fluctuations.- References for Appendix I.- Appendix II Some example problems.