Model Ship Resistance Measurement System Using Active Vibration Control Technology
A technology of vibration control and measurement system, applied in vibration test, measurement device, fluid dynamics test, etc., can solve problems such as limitation and difficulty
Active Publication Date: 2021-04-02
KOREA INST OF OCEAN SCI & TECH
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Problems solved by technology
Passive vibration control technology can be easily implemented due to its simple design and low manufacturing cost, but it has certain limitations when it comes to achieving a precise level of vibration control
That is, when the frequency band that needs to be removed is wide, it is difficult to effectively deal with it only by passive vibration control technology
Method used
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[0031] Next, embodiments to which the present invention is applied will be described in detail with reference to the accompanying drawings.
[0032] figure 1 It is a schematic diagram illustrating the mechanical vibration factors (that is, external excitation) that may be transmitted to the measurement frame of the towing vehicle, figure 2 It is a block configuration diagram of a model ship resistance measurement system using active vibration control technology applicable to an embodiment of the present invention, image 3 yes figure 2 Installation diagram of a model ship resistance measurement system using active vibration control technology in .
[0033] Before describing an embodiment to which the present invention is applied, a mechanical vibration factor (ie, external excitation) that may be transmitted to a measurement frame of a tow vehicle used in a test of a model ship will be described first.
[0034] Such as figure 1 As shown, the external excitation generated...
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The present invention relates to a model vessel resistance measurement system using active vibration control technology. According to the present invention, mechanical vibration factors (in other words, external oscillation) delivered through a measurement frame of a towing carriage used for a test on a model vessel are measured and vibration having an antiphase to the measured vibration factors (in other words, antivibration) is generated and applied to the measurement frame of the towing carriage to minimize mechanical vibration, and then, resistance on the model vessel can be precisely measured. The model vessel resistance measurement system includes: an active vibration control device measuring and analyzing external oscillation applied through the measurement frame of the towing carriage, and generating vibration having an antiphase to the external oscillation to apply the vibration to the measurement frame; a resistance dynamometer connected with the model vessel to tow the model vessel as well as measure resistance on the model vessel; and a resistance measurement device collecting, analyzing and displaying a measurement signal outputted from the resistance dynamometer.
Description
technical field [0001] The present invention relates to a kind of model ship resistance measurement system utilizing active vibration control technology, especially to a kind of mechanical vibration factor (that is, external excitation vibration factor) that can be transmitted through the measurement frame of the towing vehicle used in the model ship test. ) is measured, followed by generating vibrations in opposite phase to the measured vibration factor (i.e., anti-vibration) and applied to the measurement frame of the towing vehicle, thereby reducing the resistance experienced by the model ship after minimizing the mechanical vibration Model ship resistance measurement system utilizing active vibration control technology for precise measurement. Background technique [0002] Usually, in order to verify the ship design, a model ship is produced in which the designed ship is scaled down to a certain scale, and then it is combined with a towing vehicle of a ship type test tan...
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IPC IPC(8): G01M10/00
CPCG01M10/00G01M7/022
Inventor 柳润圭黃胜炫李英延金明锡柳善模赵卿熙孔智焕
Owner KOREA INST OF OCEAN SCI & TECH