公开(公告)号：US20140093380A1

公开(公告)日：2014-04-03

申请号：US13644130

申请日：2012-10-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Roger Drobietz ,  Thierry Pascal Maeder ,  Gowri Sengundermudaliar ,  Lorenz Edwin Drack ,  Andreas Herrig ,  Christian A. Carroll

IPC: F03D1/06

CPC classification number: F03D1/0641 ,  F03D1/0683 ,  F05B2240/301 ,  F05B2260/962 ,  Y02E10/721

Abstract: Rotor blade assemblies for wind turbines and methods for reducing rotor blade noise are disclosed. A rotor blade assembly includes a rotor blade having external surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade further defines a span and a chord. The rotor blade assembly further includes a tab. The tab includes an inner surface, an outer surface, a forward end and an aft end. The inner surface is mounted to one of the pressure side or the suction side. The outer surface has a cross-sectional profile configured to modify an operational value of the rotor blade at the trailing edge. The forward end is disposed within the chord.

Abstract translation: 公开了用于风力涡轮机的转子叶片组件以及用于降低转子叶片噪声的方法。 转子叶片组件包括具有限定压力侧，吸力侧，前缘和在尖端和根部之间延伸的后缘的外表面的转子叶片。 转子叶片进一步限定跨度和弦。 转子叶片组件还包括翼片。 突片包括内表面，外表面，前端和后端。 内表面安装在压力侧或吸力侧之一。 外表面具有构造成在后缘修改转子叶片的操作值的横截面轮廓。 前端设置在和弦之内。