Nacelle roof structure of wind turbine generator

摘要

To provide a nacelle roof structure of a wind turbine generator, where the nacelle roof structure is capable of reducing stress concentration on joints of a roofing member divided into multiple parts to accommodate growing size of a nacelle as well as improving transport efficiency of the roofing member. A nacelle roof structure of a wind turbine generator, with a top face of a nacelle being covered with a plate-type roofing member (30), in which the roofing member (30) has a joining structural portion (32) in which roof shingles (31) that divide the roofing member into a plurality of parts in a main-shaft direction are combined and plate couplings provided at opposite ends in the main-shaft direction are fastened together by being laid one on top of another; and two or more of the roof shingles (31) are equal in cut length in the main-shaft direction.

主权项

1. A nacelle roof structure of a wind turbine generator, comprising:
a plate-type roofing member covering a top face of a nacelle, wherein the roofing member comprises roof shingles and plate couplings, the roofing member has a joining structure in which the roof shingles that divide the roofing member into a plurality of parts in a main-shaft direction are combined and the plate couplings provided at opposite ends in the main-shaft direction are fastened together by being laid one on top of another, two or more of the roof shingles are equal in cut length in the main-shaft direction, corrugations substantially parallel to the plate couplings are formed on the roof shingles in a neighborhood of the plate couplings, and all of the corrugations are within a distance smaller than a width of the corrugations from the plate couplings.