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Water surface aircraft wave-collision load water pool test system and method

A pool test, aircraft technology, applied in the direction of fluid dynamics test, machine/structural component test, instrument, etc., to achieve the effect of wide application range, simple operation and reliable test results

Active Publication Date: 2018-04-20
CHINA SPECIAL TYPE FLIER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no practical test method for the unpowered model pool of the water surface vehicle crash load

Method used

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  • Water surface aircraft wave-collision load water pool test system and method
  • Water surface aircraft wave-collision load water pool test system and method

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention is further described:

[0016] Before the test of the water surface aircraft collision load pool test method of the present invention, the model weight and towing speed are converted according to the Frude similarity conversion model weight and towing speed according to the real ship weight and the real ship hydroplaning speed of the wing-in-ground effect ship, and the model configuration is ensured to be similar to the real ship. In the test, the test speed of the model is controlled by the hydrodynamic high-speed test trailer system, and the model changes when the water surface moves and interacts with the water to observe whether the model can slide stably, and the air cushion pressure, pitch angle, and resistance are collected through the test data acquisition system , heave of the center of gravity, and convert the air cushion pressure, trim angle, resistance, and heave of the center of gravity of...

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Abstract

The invention belongs to the technical field of water surface aircrafts, and relates to a water surface aircraft wave-collision load all-machine non-power model water pool test system and method. A wing fixing device (2) limits the rolling angle of a model, a gravity center fixing device (3) and a tail wing fixing device (12) limit the pitching angle of the model, and a trailer side bridge (8) limits the height of the model from the water surface. Before the model test, the height of the model from the water surface and the initial longitudinal inclination angle are adjusted and recorded. During test, a trailer pulls to enable the model to run to the required speed, the speed of the trailer, the height of the model from the water surface, the overload and the pressure value are collected and recorded, and the collected data information is analyzed, so that the wave-collision load data of the whole-machine non-power model of a water surface aircraft with fixed attitude when dragged on the wave surface can be accurately tested, and the collision wave load during the near-water surface flying can be accurately forecasted. The strength and the structural design of the water surface aircraft can be better verified. The method is practical and feasible, and is simple to operate, reliable in test result and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of water surface aircraft, and relates to a test system and method for an unpowered model pool of a water surface aircraft crashing into waves. Background technique [0002] At present, with the improvement of the range of use of water surface aircraft, the requirements for wave resistance are gradually increasing, thus putting forward higher requirements for the structural design and strength verification of water surface aircraft. In order to obtain a more accurate wave impact load of the water surface vehicle for structural design and strength check, the scaled model test of the water surface vehicle impact wave load tank is mainly carried out at present. In the unpowered model pool test of the whole machine, the force and moment and the bottom pressure value of the model after hitting the waves are mainly obtained through the test. At present, there is no practical test method for the unpowered model po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 王明振焦俊何超张家旭孙丰江雪云
Owner CHINA SPECIAL TYPE FLIER RES INST
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