A dual de-icing system for wind turbine blades combining high-power ultrasonic guided waves and low-frequency forced vibrations

Kimura, 2004, The effects of anti-icing paint on the adhesion force of ice accretion on a wind turbine blade, 9 Laakso, 2005, Review on blade heating technology and future prospects, 12 Sørensen, 2011 Gao, 2009, Ice detection and classification on an aircraft wing with ultrasonic shear horizontal guided waves, ultrasonics, Ferroelectr. Freq. Control, 56, 334, 10.1109/TUFFC.2009.1042 Overmeyer, 2013, Ultrasonic de-icing bondline design and rotor ice testing, AIAA J., 51, 2965, 10.2514/1.J052601 DiPlacido, 2013, Enhancement of ultrasonic de-icing via transient excitation Venna, 2007, Piezoelectric transducer actuated leading edge de-icing with simultaneous shear and impulse forces, J. Aircr., 44, 509, 10.2514/1.23996 Palacios, 2008 Coffman, 1987, Helicopter rotor icing Protection methods, Bell Helicopter Textron Inc., Fort Worth Texas, J. Am. Helicopter Soc., 32 Movaghghar, 2012, A method of estimating wind turbine blade fatigue life and damage using continuum damage mechanics, Int. J. Damage Mech., 21, 810, 10.1177/1056789511419693 Kong, 2005, Structural investigation of composite wind turbine blade considering various load cases and fatigue life, Energy, 30, 2101, 10.1016/j.energy.2004.08.016 Mahri, 2002, Fatigue estimation for a rotating blade of a wind turbine, Rev. Energy Ren., 5, 39 Palacios, 2006, Ultrasonic shear wave anti-icing system for helicopter rotor blades, 1492 Johnston JF., Farone WA, Mikhail A. Composite Wind Turbine Rotor Blade and Method for Making Same, US Patent No. 4976587, 1990. Larwood, 2000, Comprehensive testing of nedwind 12-meter wind turbine blades at NREL 1984 Sutherland, 1999 Creed, 1993 Mandell, 1994, Fatigue of fiberglass generic materials and substructures, Wind Energy, 15, 207 Frohboese, 2007, Effects of icing on wind turbine fatigue loads, J. Phys. Conf. Ser., 75, 012061, 10.1088/1742-6596/75/1/012061 Noda, 1999, A simulation model for wind turbine blade fatigue loads, J. Wind Eng. Ind. Aerodyn., 83, 527, 10.1016/S0167-6105(99)00099-9 Ramanathan, 2005 E. Brouwers, J. Palacios and E.C. Smith, Andrew A. Peterson, The experimental investigation of a rotor hover icing model with shedding, The American Helicopter Society 66th Annual Forum, Phoenix, AZ, May 11–13, 2010. Stallabrass, 1963, On the adhesion of ice to various materials, Can. Aeronaut. Space., 199 Zhao, 2000, Effect of interfacial adhesion and statistical fiber strength on tensile strength of unidirectional glass fiber/epoxy composites, Compos. Part A, 1203, 10.1016/S1359-835X(00)00085-3 Eggleston, 1978