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Stability testing method of water surface aircraft real machine

A stability test and aircraft technology, applied in 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: 2014-06-04
CHINA SPECIAL TYPE FLIER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no practical test method for the actual stability of water surface aircraft

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Test procedure of the present invention is as follows:

[0020] a) Preparations before actual test of surface aircraft:

[0021] Referring to the stability test state of the water surface aircraft model pool, adjust the counterweight and center of gravity inertia of the actual aircraft in the corresponding test state. 5% difference;

[0022] The static water floating state of the real aircraft should refer to the static water floating state of the surface aircraft model pool stability test, and the attitude angle error should not exceed 0.1 degrees;

[0023] The engine should be fully run-in, and a thrust test should be carried out to record the relationship between the thrust T, the rotational speed N, and the power P;

[0024] The flap angle is fixed to the take-off flap angle of the aircraft, and the elevator is initially 0 degrees;

[0025] The data acquisition equipment includes gyroscope and acceleration sensor, which respectively collect the attitude angle cha...

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PUM

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Abstract

A stability testing method of a water surface aircraft real machine comprises the following steps that (a), water surface aircraft real machine test is prepared; (b), the water surface aircraft real machine test is conducted; (1) ground state of the aircraft is checked; (2) initial state of calm water of the aircraft is checked; (3), the aircraft is heated by an aircraft engine; (4), the aircraft skis water for 5-6 seconds in the same speed, each test condition repeats for 2-3 times; (5), water skiing state of the aircraft needs to be observed; (6), according to test data and test phenomena, the stability of the water surface aircraft is judged. The stability testing method of the water surface aircraft real machine has the advantages of being practical, feasible, simple in operation, reliable in testing results, and wide in application range.

Description

technical field [0001] The present invention relates to the hydrodynamic performance test field of seaplanes, amphibious planes, ground effect planes (wing-in-ground effect ships) and other new-concept water surface aircraft when taxiing and taking off, and specifically relates to a hydrodynamic performance test device and its test method. Background technique [0002] Surface aircraft stability means that the surface aircraft must not exhibit hazardous or uncontrollable motion characteristics at any normal operating speed over water. It is an important technical index to measure the hydrodynamic performance of surface aircraft. At present, with the significant increase in the range of use of surface aircraft, higher requirements are placed on its stability. In order to verify the stability of the water surface aircraft, the water surface aircraft pool scale model stability test, the water surface aircraft free flying scale model open water stability test and the water sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
Inventor 许靖锋魏飞郑海北云鹏王冠龚郡
Owner CHINA SPECIAL TYPE FLIER RES INST
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