Assessment of Research Needs for Wind Turbine Rotor Materials Technology by National Research Council -- Read -- Imperial Library of Trantor

Index

COVER PAGE COMMITTEE ON ASSESSMENT OF RESEARCH NEEDS FOR WIND TURBINE ROTOR MATERIALS TECHNOLOGY ENERGY ENGINEERING BOARD Preface Contents List Of Figures List Of Tables Executive Summary

Research Recommendations Materials Design Manufacturing

1 Introduction

Scope And Content Wind-Driven Power Plants Why Materials Knowledge Is Critical The Evolution of Wind-Driven Power Plants The Principal Component: Wind Turbines Power Conversion Equations The Wind Environment Fatigue Cycle Accumulation References And Bibliography

2 Structural Loading Characteristics

Load Characterization Blade Failure Experience Lessons From Helicopter Experience Recommendations References And Bibliography

3 Materials Properties And Life Prediction

Fibers Matrix Materials E-Glass/Plastic Composites Fatigue Life Prediction Toughness Considerations Wood/Epoxy Composites Recommendations References And Bibliography

4 Wind Turbine Rotor Design Issues

Airfoil Evolution Aerodynamic Tip Brakes Blade Root Retention

Glass-Reinforced Plastic (Grp) Blade Roots

Wood/Epoxy Blade Roots Blade Joining Blade Design Considerations

Fiberglass Blades Wood/Epoxy Blades

Recommendations1

Grp Wood/Epoxy Generic

References And Bibliography

5 Manufacturing Processes For Rotor Blades

Current Manufacturing Processes

Blade Root End Concepts Manufacturing Methods Influence Blade Life Matrix Stress Versus Fatigue

Helicopter Rotor Blade Design And Processing Manufacturing Processes Applicable To Wind Turbine Blades

Resin Transfer Molding (RTM) Pultrusion Fiber Placement

Root End Design For Producibility Manufacturing Recommendations References And Bibliography

6 Active Control In Wind Turbines

The Control Problem For Wind Turbines Recent Trends In Control System Theory Existing Control Technology For Wind Turbines Role Of Control Technology In The Wind Power Industry References And Bibliography

7 Conclusions And Recommendations

Conclusions Research Recommendations

Appendix A Statement Of Task

Objectives Tasks To Be Performed Assessment Outcome

Appendix B Committee Meetings And Activities