Dedication Preface Acknowledgments Nomenclature List of Figures List of Tables 1.Introduction 2.Technical Background 3.Theoretical Fundamentals of the Perturbation Approach 4.Application to a 2D System 5.Application to a 3D Helicopter Model 6.Complete Combined Approach 7. Conclusions and Future Work Appendix I Appendix II Appendix III Appendix IV Appendix V Appendix VI Appendix VII References Index