Abstract:
The present invention relates to an electro-mechanical wave device used for movement of a mechanical member by friction, a motor comprising one or more wave devices and a method for the design and manufacture of the electro-mechanical wave device . According to the invention, an electro-mechanical wave device is provided (1) , comprising a substrate (2) for propagation of a mechanical wave and for transmission of electrical signals through conductors (4, 6, 8) accommodated by the substrate, a plurality of actuators (10a, 10b, 10c, 1Od) positioned on the substrate for generation of the mechanical wave, each of the actuators being connected to a respective set of conductors of the substrate for reception of an excitation signal transmitted by the set of conductors, whereby the actuators generate the mechanical wave propagating in the substrate along a predetermined propagation path in response to the excitation signals.
Abstract:
A deformable trailing edge section (3) of a wind turbine blade (1), at least part of said section (3) being formed in a deformable material. The blade section (3) comprises one or more cavities (5) being in connection with or connectable to a fluid source in a way that allows fluid to stream from the fluid source to the cavity or cavities (5), so that the shape of the deformable trailing edge section (3) and thereby the camber of the blade cross-section (3) is changeable by the pressure of fluid in the cavity or cavities (5) with insignificant changes of the thickness and chord wise length of the deformable trailing edge section. Furthermore a wind turbine blade (1) is described, having at least one of such trailing edge section (s) (3) and to a system (11) for mounting a blade section (3) on a main blade (2) of a wind turbine. In addition a method of manufacturing a deformable trailing edge section (3) of a wind turbine blade (1) is disclosed.
Abstract:
The present invention relates to an electro-mechanical wave device used for movement of a mechanical member by friction, a motor comprising one or more wave devices and a method for the design and manufacture of the electro-mechanical wave device. According to the invention, an electro-mechanical wave device is provided, comprising a substrate for propagation of a mechanical wave and for transmission of electrical signals through conductors accommodated by the substrate, a plurality of actuators positioned on the substrate for generation of the mechanical wave, each of the actuators being connected to a respective set of conductors of the substrate for reception of an excitation signal transmitted by the set of conductors, whereby the actuators generate the mechanical wave propagating in the substrate along a predetermined propagation path in response to the excitation signals.