Preface; Contents; 1 Techniques for Verification of Structural Acoustic Models; Notation; Abbreviations; 1.1 Background; 1.1.1 Introduction; 1.1.2 Verification and Validation; 1.1.3 Mathematical Models; 1.1.3.1 The Acoustic Wave Equation; 1.1.3.2 The Helmholtz Equation; 1.1.3.3 The Free-Field Green's Function: Fundamental Solution of the Helmholtz Equation; 1.2 BEM Formulation and the Computational Model; 1.2.1 Direct BIE Formulation for Helmholtz Equation; 1.2.2 Non-uniqueness and Regularization; 1.2.3 Solution Schemes for the Boundary Integral Equation; 1.3 Code Verification Examples

1.3.1 Interior Pressure Due to a Circular Vibrator1.3.2 Exterior Pressure Due to a Circular Vibrator; 1.3.3 Interior Pressure Due to a Pulsating Sphere; 1.3.4 Exterior Pressure Due to a Pulsating Sphere; 1.4 Solution Verification Examples; 1.4.1 Gear Whine Prediction; 1.5 Results and Discussion; 1.6 Conclusions; References; 2 Substructuring of Viscoelastic Subcomponents with Interface Reduction; 2.1 Introduction; 2.2 Theoretical Development; 2.2.1 Linearized Complex Fixed-Interface Modes; 2.2.2 Pseudo-Static Constraint Modes; 2.2.3 Subcomponent Model Reduction; 2.2.4 Assembly

2.2.5 System-Level Interface Reduction2.3 Numerical Results: Composite Plate Assembly; 2.3.1 Substructuring with Pseudo-Static Constraint Modes; 2.3.2 Substructuring with Interface Reduction; 2.3.3 Upfront Computational Cost; 2.4 Conclusion; References; 3 Parameter Estimation of Joint Models Using Global Optimization; 3.1 Introduction; 3.2 Modeling and Calibration; 3.2.1 Whole Joint Models; 3.2.2 Objective Function; 3.2.3 Genetic Algorithm; 3.3 Results; 3.3.1 Experimental Hardware and Data; 3.3.2 Optimal Model Parameters; 3.3.3 Validation with Sine Sweeps; 3.4 Conclusion; References

4 Real-Time Hybrid Simulation of an Unmanned Aerial Vehicle4.1 Introduction; 4.2 Concept; 4.3 System Modelling; 4.4 Implementation and Setup; 4.5 Experimental Results; 4.6 Conclusions; References; 5 An Integration of Mixed Contact Formulation with Model-Reduction Techniques; 5.1 Introduction; 5.2 Craig-Bampton Method; 5.3 Contact Formulation; 5.4 Conclusions; References; 6 Identification Reassembly Uncertainties for a Basic Lap Joint; 6.1 Introduction; 6.2 Nonlinear Lap Joint Response; 6.3 Nominal Nonlinear Response; 6.4 Friction Input Parameters; 6.5 Bolt Load; 6.6 Interface Curvature

6.7 Discussion6.8 Conclusions; References; 7 Effect of Far-Field Structure on Joint Properties; 7.1 Introduction; 7.2 Experimental Investigation; 7.2.1 Experimental Setup; 7.2.2 Linear Experimental Analysis; 7.2.3 Nonlinear Experimental Analysis; 7.2.3.1 Impact Test Characterization; 7.2.3.2 Damping Shift Comparison; 7.2.4 Nonlinear Characterization Using Hilbert Transform; 7.2.4.1 Data Filtering; 7.2.4.2 Nonlinear Characterization; 7.3 Numerical Investigation; 7.3.1 Nonlinear Amplitude Dependent Properties from Quasi-static Finite Element; 7.3.1.1 Modeling Procedure