An oscillating hydrofoil device for water tunnel experiments

An experimental hydrofoil technology, which is applied in the fields of ocean ship engineering, water conservancy and hydropower engineering, can solve problems such as poor sealing, insufficient motion control accuracy, and inability to measure torque, so as to avoid water contact, inaccurate measurement data, Solve the effect of short circuit

Active Publication Date: 2019-09-13
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an oscillating hydrofoil device for water tunnel experiments to solve the problems of poor sealing, insufficient motion control precision and inability to measure torque in the prior art

Method used

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  • An oscillating hydrofoil device for water tunnel experiments
  • An oscillating hydrofoil device for water tunnel experiments
  • An oscillating hydrofoil device for water tunnel experiments

Examples

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Embodiment 1

[0040] Such as figure 1 , figure 2 , Figure 6 , Figure 7 As shown, an oscillating hydrofoil device for water tunnel experiment, including: transmission mechanism fixing plate 2, servo motor 3, adjustment sleeve 4, front casing 5, rear casing 6, support column 7, hydrofoil model 9, sealant Pad 10 , device fixing plate 11 , transmission shaft 12 , resolver 14 , torque sensor 16 and bushing 22 .

[0041] Such as figure 1 , figure 2 , Figure 6 , Figure 7 As shown, the servo motor 3, the rear casing 6 and the front casing 5 are fixedly connected in sequence; the shaft sleeve 22 is fixed on the motor shaft of the servo motor 3, and the torque sensor 16 is installed on the shaft sleeve 22; the transmission shaft 12 passes through the resolver 14 The rear is fixedly connected with the torque sensor 16; two transmission mechanism fixing plates 2 are fixedly connected in parallel to the rear housing 6 sides, and the transmission mechanism fixing plate 2 is perpendicular to ...

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PUM

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Abstract

The invention relates to an oscillating hydrofoil device for a water tunnel experiment, and belongs to the technical field of water conservancy and hydropower engineering and marine ship engineering.The device includes transmission mechanism fixing plates, a servo motor, adjustment sleeves, device fixing plates, a rotary transformer, and a torque sensor. The servo motor, a rear shell and a frontshell are fixedly connected in order. A shaft sleeve is fixed on a motor shaft of the servo motor, and the torque sensor is mounted on the shaft sleeve. A transmission shaft is fixedly connected withthe torque sensor after passing through the rotary transformer. The two transmission mechanism fixing plates are horizontally in parallel and fixedly connected on both sides of the rear shell. The transmission mechanism fixing plates and the device fixing plates are fixedly connected through support columns. The support columns are sleeved with the adjustment sleeves, and the adjustment sleeves are located between the transmission mechanism fixing plates and the device fixing plates. The transmission shaft is fixedly connected with a hydrofoil model under test. The oscillating hydrofoil deviceof the invention realizes a good sealing through a compaction mode, and realizes the precise control of the hydrofoil movement and the real-time monitoring and measurement of the torque by using therotary transformer and the torque sensor.

Description

technical field [0001] The invention relates to an oscillating hydrofoil device for water tunnel experiments, belonging to the technical fields of water conservancy and hydropower engineering and ocean ship engineering. Background technique [0002] In the field of aerospace, in order to avoid dynamic stall, structural flutter and resonance, the dynamic characteristics of oscillating airfoils have been paid more and more attention. In the study of hydraulic machinery, the additional force generated by the rotation and the disturbance of the static and dynamic components have an important impact on the turbulent flow process, the development of the boundary layer, and the temporal and spatial distribution of the flow structure. It is the focus and difficulty of the research. In the transient process of propeller, turbo pump, hydraulic turbine start-up and shutdown, runaway, load increase and decrease, etc., the transient flow in the transient process will change the effectiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00
Inventor 张孟杰黄瀚锐黄彪吴钦王国玉
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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