Rudder Force Measuring Device for Rudder-wing Combined Control Surface Used in Water Tunnel
A technology of measuring device and control surface, which is applied in the field of performance research of airfoil structure model, can solve the problems of three-component force balance being adversely affected by extremely large bending moment, measuring accuracy, and affecting the measuring accuracy of rudder force, so as to achieve high measuring accuracy. , improve the measurement accuracy, improve the effect of experimental efficiency
Active Publication Date: 2021-04-20
NAVAL UNIV OF ENG PLA
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Problems solved by technology
The contact between the watertight treatment part and the dowel bar will affect the measurement accuracy of the rudder force, and the use of a longer dowel bar will cause the three-component force balance to be subject to a large bending moment, which will adversely affect the measurement accuracy
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.
[0023] like Figure 1-4 As shown, the present invention is used for the rudder force measuring device of the rudder-wing combined control surface of the water tunnel, including the torque measuring device for measuring the torque of the rudder shaft and the lever measuring device for separating and measuring the lateral force on the rudder-wing combined control surface, The torque measurement device includes a driving device 1 and a first torque detection device 2 for driving the rudder shaft to rotate, and the lever measurement device includes a dowel bar 8, a frame 17, a bearing 13, and is used for detecting the frame and the dowel bar. The second torque detection device 12 for torque between one end and the tension pressure det...
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The invention discloses a rudder force measuring device for a rudder-wing combined control surface used in a water tunnel. It includes a torque measuring device and a lever measuring device, the torque measuring device includes a driving device and a first torque detection device, the rotating drive end of the driving device is fixedly connected to the top of the rudder shaft through the first torque detection device, and the bottom of the rudder shaft is connected to the The rotating rudder in the water tunnel is fixedly connected; the lever measuring device includes a dowel bar, a frame and a support, the bottom of the frame is fixed on the fixed wing in the water hole, and one end of the dowel bar passes through the second torque transmission detection device and The top of the frame is fixedly connected, the other end of the dowel bar is fixedly connected with the top of the support through the tension and pressure testing equipment, and the middle fulcrum of the dowel bar is movably connected with the top of the support. The invention uses a lever to separate the lateral force on the combined control surface of the rudder wing from the torque on the rudder shaft, and uses a tension pressure sensor and a torque sensor to measure the lateral force and the torque of the rudder shaft respectively, thereby improving the measurement accuracy.
Description
technical field [0001] The invention belongs to the technical field of performance research of an airfoil structure model, and in particular relates to a rudder force measuring device for a rudder-wing combined control surface used in a water tunnel. Background technique [0002] The existing water tunnel rudder force measurement device generally uses a three-component force balance to measure, because the three-component force balance cannot be used in water, so it is necessary to do watertight treatment to the dowel bar or use a longer dowel bar to make the three-component force balance Place in a higher position where it will not be submerged in water. The contact between the watertight treatment and the dowel bar will affect the measurement accuracy of the rudder force, and the use of a longer dowel bar will cause the three-component force balance to be subjected to a large bending moment, which will adversely affect the measurement accuracy. Contents of the invention ...
Claims
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IPC IPC(8): G01L5/00G01M10/00
CPCG01L5/00G01M10/00
Inventor 刘志华翟朔骆飞洋
Owner NAVAL UNIV OF ENG PLA