Abstract: A tower segment, in particular for a tower of a wind turbine, a wind turbine, and a method for manufacturing a tower segment is provided. A tower segment, in particular for a tower of a wind turbine, comprising a casing segment with an inner casing surface, an outer casing surface and a cutout for a door, wherein the inner casing surface has a first inner reinforcing portion and/or the outer casing surface has an outer reinforcing portion, wherein the inner reinforcing portion and/or the outer reinforcing portion adjoin the cutout, and the inner reinforcing portion has an inner reinforcing plate and/or the outer reinforcing portion has an outer reinforcing plate.

Abstract: A tower segment, in particular for a tower of a wind power installation, to a tower, in particular a tower of a wind power installation, to a wind power installation and to a method for constructing a tower. In particular, the invention relates to a tower segment, in particular for a tower of a wind power installation, for attaching to a support structure, in particular to a foundation, comprising a tower base element having an upper end and a lower end, and a threaded opening arranged at the lower end, a flange, which is arranged at the lower end, having a first flange opening and a second flange opening, wherein the tower base element and the flange are connected by a fastening element arranged in the threaded opening and the first flange opening, and wherein the second flange opening is formed in such a way that a connecting element of the support structure can extend through the second flange opening.

Abstract: Provided is a displaceable maintenance device, to a displaceable assembly device, to a method for servicing a fastening element, and to a method for servicing and/or assembling a fastening element of a flange of a wind power installation tower. Provided is a displaceable maintenance device for a wind power installation tower, comprising a mobile unit which is specified for moving the maintenance device along a flange of the wind power installation tower; a first maintenance unit having an impact element for impacting a fastening element, in particular a flange connection element, and a noise-receiver unit for detecting a noise generated by the impacting; a control unit for evaluating the noises detected by means of the noise-receiver unit, said control unit, based on the evaluation, being specified for assigning a maintenance status to a fastening element.

Abstract: Provided is a displaceable maintenance device, to a displaceable assembly device, to a method for servicing a fastening element, and to a method for servicing and/or assembling a fastening element of a flange of a wind power installation tower. Provided is a displaceable maintenance device for a wind power installation tower, comprising a mobile unit which is specified for moving the maintenance device along a flange of the wind power installation tower; a first maintenance unit having an impact element for impacting a fastening element, in particular a flange connection element, and a noise-receiver unit for detecting a noise generated by the impacting; a control unit for evaluating the noises detected by means of the noise-receiver unit, said control unit, based on the evaluation, being specified for assigning a maintenance status to a fastening element.

Abstract: A tower segment, in particular for a tower of a wind turbine, a wind turbine, and a method for manufacturing a tower segment is provided. A tower segment, in particular for a tower of a wind turbine, comprising a casing segment with an inner casing surface, an outer casing surface and a cutout for a door, wherein the inner casing surface has a first inner reinforcing portion and/or the outer casing surface has an outer reinforcing portion, wherein the inner reinforcing portion and/or the outer reinforcing portion adjoin the cutout, and the inner reinforcing portion has an inner reinforcing plate and/or the outer reinforcing portion has an outer reinforcing plate.

Abstract: A tower segment of a tower of a wind turbine, a tower portion of a wind turbine, a tower of a wind turbine, a wind turbine, a method of producing a tower segment of a wind turbine and a method of connecting tower segments of a wind turbine. The tower segment includes a compression element and a tension element, wherein the tension element is arranged with its main direction of extent substantially horizontally in the installation state and is spaced from the tower segment in a direction in orthogonal relationship with its main direction of extent and is connected to the compression element by way of an intermediate element.

Abstract: A tower segment of a tower of a wind turbine, a tower portion of a wind turbine, a tower of a wind turbine, a wind turbine, a method of producing a tower segment of a wind turbine and a method of connecting tower segments of a wind turbine. The tower segment includes a compression element and a tension element, wherein the tension element is arranged with its main direction of extent substantially horizontally in the installation state and is spaced from the tower segment in a direction in orthogonal relationship with its main direction of extent and is connected to the compression element by way of an intermediate element.

Abstract: A connecting element for connecting tower portions of a wind turbine, to a tower portion, to a tower and to a wind turbine and also to a method for producing a tower portion and to a method for connecting tower portions. The connecting element comprises a fastening surface which has the form of a segment of a circumferential surface of the tower and is designed to be arranged on a circumferential surface of a tower portion, and also comprises a connecting surface which is arranged at an angle to the fastening surface and which has receptacles for receiving fastening elements.

Abstract: A method for producing a part is provided, the method including the following: a first step of a computer-aided simulation for a plurality of cross-sections of the part based on a 3D cross-sectional model and obtaining a first result, which represents shrinkage of the part basically caused by thermal and/or chemical reactions; a second step of a further computer-aided simulation for the plurality of cross-sections of the part based on a 2D shell model and obtaining a second result, which represents shrinkage of the part basically caused by thermal and/or chemical reactions; determining a scale factor for the second result in such a way that the second result corresponds to the first result; determining scale factors for any cross-sections which are between two adjacent cross-sections from the plurality of cross-sections, by interpolation; predicting a distortion of the part; and producing the part based on the predicted distortion of the part.

Abstract: A method for producing a part is provided, the method including the following: a first step of a computer-aided simulation for a plurality of cross-sections of the part based on a 3D cross-sectional model and obtaining a first result, which represents shrinkage of the part basically caused by thermal and/or chemical reactions; a second step of a further computer-aided simulation for the plurality of cross-sections of the part based on a 2D shell model and obtaining a second result, which represents shrinkage of the part basically caused by thermal and/or chemical reactions; determining a scale factor for the second result in such a way that the second result corresponds to the first result; determining scale factors for any cross-sections which are between two adjacent cross-sections from the plurality of cross-sections, by interpolation; predicting a distortion of the part; and producing the part based on the predicted distortion of the part.