Flexible aerofoil vibration detecting and control device based on high-speed camera and method thereof

Abstract

The invention discloses a flexible aerofoil vibration detecting and control device based on a high-speed camera. The device comprises a flexible aerofoil body part, a vibration detecting part, a vibration control part, a signal processing module and a computer. The flexible aerofoil body part comprises an aerofoil, a base and a vibration exciter. The vibration detecting part comprises two pairs of binocular vision systems which are composed of high-speed cameras and a plurality of acceleration sensors. The vibration control part comprises a plurality of electromagnetic actuators. The mounting positions of the plurality of electromagnetic actuators are same with that of the plurality of acceleration sensors. The vibration detecting part measures vibration information of the flexible aerofoil body part. Through processing by the signal processing module, the processed vibration information is transmitted to the computer. The computer performs corresponding processing and then makes the vibration control part perform action, thereby finishing measurement and control on vibration of the flexible aerofoil body part. The device has advantages of high sensitivity and high response speed. Furthermore the device can realize accurate measurement and control for vibration of the flexible aerofoil.

Description

technical field [0001] The invention relates to the field of vibration detection and control of flexible structures, in particular to a device and method for vibration detection and control of a flexible wing based on a high-speed camera. Background technique [0002] With the rapid development of the aviation industry, airplanes play an increasingly important role in cargo transportation and passenger transportation, including the use of aerospace vehicles and the development of functional drones. One of the greatest inventions of the century has increasingly become an indispensable tool in today's world. In the design and practical application of the aircraft, the vibration of the wing is one of the very important and key considerations. If there is no effective means to suppress the vibration of the aircraft wing, the vibration will cause the mechanical fatigue of the wing during the flight of the aircraft. , under the action of stress and strain, if one or several place...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a flexible wing vibration detection and control device based on a high-speed camera for the shortcomings and deficiencies of the existing flexible wing vibration detection and control technology. The device uses a high-speed camera as a vibration detection and analysis At the same time, the acceleration sensor is used as an auxiliary method, which overcomes the problem that it takes a certain time to analyze and process the obtained photos by the high-speed camera to obtain the vibration information of the wing, and the problem that the vibration information cannot be fed back to the driver immediately can be obtained simply and quickly Comprehensive vibration information in the measured area, and the vibration information is fed back to the computer in real time. After processing by the control algorithm set in the computer, the control value is obtained and output to the electromagnetic actuator to generate control force, so that the vibration of the flexible wing get suppressed

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