Abstract: A device for reducing loads in a drive train of a wind turbine includes a machine support. The wind turbine includes a sensor means, a controllable damper means, an actuating means. The sensor means is configured to detect at least one variable characterizing vibrations and/or misalignments in the drive train. The controllable damper means is configured to produce at least one adjusting torque which compensates at least one torque associated with the load in the drive train. The actuating means is configured to actuate the damping means based on the at least one variable detected by the sensor means.

Abstract: A wind power plant for converting wind power of a wind field into electrical energy. The wind power plant includes at least one wind power device having a wind measurement device. Furthermore, the wind power plant comprises a central storage device in which wind profile patterns are stored in a wind profile pattern table. The wind measurement device predictively detects current wind measurement values. The wind power plant has a central pattern recognition device that correlates the current wind measurement values of the wind measurement device with the stored wind profile patterns of the wind profile pattern table. A central control device individually controls each single wind power device of the wind power plant as a function of a wind profile pattern determined by correlation.

Abstract: A piezoelectric actuator has stacked ceramic layers of a piezoelectric material and electrodes situated between the layers to form a piezoelectric stack and having at least one structure that reduces the mechanical strain occurring in the piezoelectric stack. The strain reducing structure is comprised of a strain-reducing layer equipped with recesses and is typically situated between the ceramic layers. In particular, the recesses of the strain-reducing layer are situated in an outer region of the layer and is comprised of a notch which significantly reduce the mechanical strains inside the actuator.

Abstract: A ceramic composite material, for example, a ceramic molded body or a layer obtained by pyrolysis of a starting mixture, containing at least one polymer precursor material and at least one filler, which has an average particle size of less than 200 nm. Such a composite material may be used, for example, for producing fibers, filters, catalyst support materials, ceramic sheathed-element glow plugs, metal-containing reactive composite materials, porous protective shells for sensors, ceramic or partially ceramic coatings or microstructured ceramic components.

Abstract: A ceramic composite material, for example, a ceramic molded body or a layer obtained by pyrolysis of a starting mixture, containing at least one polymer precursor material and at least one filler, which has an average particle size of less than 200 nm. Such a composite material may be used, for example, for producing fibers, filters, catalyst support materials, ceramic sheathed-element glow plugs, metal-containing reactive composite materials, porous protective shells for sensors, ceramic or partially ceramic coatings or microstructured ceramic components.