2 results about "Edge loading" patented technology

The application discloses a multi-circle gradually-changing impedance edge loading tight field device, which is a novel device different from traditional sawtooth tight field and edge curl tight field. The device sprays conductive paint with gradually-changing impedance on the edge of a parabolic surface in multiple circles, and controls the impedance value of the conductive paint in the gradually-changing manner. Compared with common sawtooth edge processing and edge curl processing, the design of the multi-circle gradually-changing impedance does not need to process the edge shape into sawtooth or curve, but only needs to load impedance on the edge surface of the parabolic reflecting surface, so that the processing steps of the tight field reflecting surface are greatly simplified, the processing difficulty is reduced, and the cost is saved. The device disclosed by the application fully meets the performance indexes of the tight field, can be used as an upgrade and substitution of the existing tight field product, and is one of the development trends of future low-frequency test fields.

The invention relates to an engine strength test technology, and provides an engine casing multilateral load redundancy orthogonal parallel loading device and method, an engine casing comprises a plurality of mounting edges and a plurality of fulcrums, and the loading device comprises a mounting edge loading mechanism and a fulcrum loading mechanism; each mounting edge is provided with a mounting edge loading mechanism, and each mounting edge loading mechanism comprises a loading platform, an axial force and bending moment loading actuator, a torque loading actuator and a first lateral force loading actuator; and each fulcrum is provided with a fulcrum loading mechanism, and each fulcrum loading mechanism comprises a loading support, a loading shaft, a second lateral force loading actuator and an axial force loading actuator. According to the device disclosed by the invention, a redundant orthogonal parallel architecture is formed by a plurality of loading actuators for applying loads, so that the load strength test requirements of multi-dimensional forces formed by combining different maneuvering loads and aerodynamic loads can be met, and a relatively high engineering value is loaded on multi-mounting-edge multi-dimensional forces of an aero-engine case.