전달 매트릭스를 이용한 풍력 터빈 블레이드의 회전속도에 따른 동특성 변화 해석

Analysis of Dynamic Characteristics by Rotational Speed of Wind Turbine Blade using Transfer Matrix

The transfer matrix method is used to determine the dynamic characteristics(natural frequencies and mode shapes) by rotational speed of wind turbine blade. The problems treated on this study is coupled flapwise bending and chordwise bending of pre-twisted nonuniform wind turbine blade. The orthogonality relations that exist between the vibrational modes is derived and the algorithm for determination of the natural vibrational characteristics is suggested.