Mtu Aero Engines Ag

Michael Junge

Hans-Peter Hackenberg

Wilfried Schuette

Axel Stettner

Daniel Theurich

Andreas Hartung

Markus Schlemmer

Alexander Halcoussis

Benjamin Hanschke

Wilhelm Meir

Ulrich Retze

Hannes Wolf

Martin Becker

Stefan Schwarz

Wolfgang Horn

Claudia Stoehr

Astrid Kraus

Francesca Storti

Joerg Reschke

David Rittinger

Claudia STÖHR

Wilfried Schütte

The disclosure is directed to a method comprising the steps: carrying out multiple measurements on a mechanical object, the measurements each differing by one or more parameters influencing the measurement; determining a spectrogram on the basis of the measurement data of the measurements and depending on a predefined parameter of the mechanical object; determining one or more excitations of the mechanical object; reproducing the excitations in the spectrogram.

Method, device, and graphical user interface for analysing a mechanical object

The present invention relates to an apparatus and a method for determining a scaling factor for a strain measurement in a machine element, comprising steps for measuring a strain in a measurement surface portion by means of a strain measuring device; for measuring a displacement of a detection surface portion of the machine element by an optical scanning; for determining a displacement field on a surface of the machine element on the basis of a model of the machine element and the measured displacement of the at least one detection surface portion; for determining a strain field on the surface of the machine element on the basis of the determined displacement field and the model of the machine element; and for determining a scaling factor of the strain measuring device on the basis of the determined strain field and the measured strain in the measurement surface portion.

Method and apparatus for determining upvalue factors for expansion measurements on machine elements

The invention relates to an airfoil for a compressor of a turbomachine, which extends starting from a blade root between a leading edge and a trailing edge to a blade tip, wherein the leading edge has a leading-edge thickness and the airfoil has a maximum profile thickness, the ratio of which to each other represents a relative leading-edge thickness, and the airfoil has a leading-edge wedge angle.

Airfoil for a compressor of a turbomachine

An integrally bladed rotor for a turbomachine, in particular a compressor or turbine stage of a gas turbine, to which at least one separately formed impulse element housing (′) is fastened by at least one fastening element (′) which engages for this purpose into an opening () of the impulse element housing and into an opening () of the rotor, the impulse element housing having at least one cavity () in which at least one impulse element () is accommodated with play.

Integrally bladed turbomachine rotor

A curved contour of the lateral surface of a blade arrangement includes in at least one meridian section on mutually opposite sides of a blade airfoil an intersection point that is closer to the blade airfoil front edge, and an intersection point that is closer to the blade airfoil rear edge, and a best-fit line of least square distances from the curved contour. The curved contour includes first and/or the second contour section which meet specified conditions.

Gas turbine blade arrangement

The invention relates to a blade for a turbomachine, comprising a blade element with a suction side and a pressure side, which extend between a leading edge and a trailing edge of the blade element, as well as a blade root for connection of the blade at a main rotor body, wherein the blade comprises a crack-affecting device, which, in the radial direction, has an altered cross-sectional geometry in comparison to an aerodynamically optimized blade profile. The invention further relates to a rotor for a turbomachine having at least one such blade, a turbomachine having at least one such blade, and/or with such a rotor as well as a method for producing a blade.

Blade and rotor for a turbomachine and turbomachine

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Munich, Germany

Michael Junge