Non-contact control surface angle calibration method

Abstract

The invention relates to the technical field of flight tests for testing control surface parameters of testers, in particular to a non-contact control surface angle calibration method. The aircraft control surface calibration of all domestic aircraft manufacturers adopts a contact measuring mode of a special protractor; and the special protractor has no generality, is large in size and troublesome in operation, and is highly influenced by human factors in calibration results. The invention aims to provide the non-contact control surface angle calibration method for realizing online field calibration of flight test control surface angles. Compared with a traditional contact control surface calibration technology, the non-contact control surface calibration technology has the following advantages: calibration staff needs no aerial operation; and the calibration work is high in automation degree and efficiency.

Description

technical field [0001] The invention relates to the technical field of flight test, and tests the parameters of a rudder surface of a test machine, in particular to a method for calibrating the angle of a non-contact rudder surface. Background technique [0002] The control of the aircraft in the air is carried out through three control surfaces - elevator, rudder and ailerons. Rotating these three control surfaces, under the action of airflow, will generate control moment to the aircraft, making it rotate around the horizontal axis, vertical axis and vertical axis, so as to change the attitude of the aircraft. There are two ways to move the corner of the control surface: one is the vertical corner that rotates around the horizontal axis, that is, the elevator, aileron, etc. of the aircraft, and the other is the horizontal corner that rotates around the vertical axis, that is, the rudder of the aircraft. [0003] For the test and calibration of the vertical rotation angle, ...

AI Technical Summary

Problems solved by technology

For small aircraft, the staff can easily access the calibrated rudder surface. For large aircraft, the rudder surface has a large displacement range and a high distance from the rudder surface to the ground. The space available for calibration personnel to perform calibration is limited, so it is difficult to obtain the initial calibration. position

Therefore, this method is difficult to implement for large aircraft control surface calibration

All domestic aircraft manufacturers use the contact measurement method of the special protractor for the calibration of the aircraft rudder surface. The special protractor is not universal, and the protractor is bulky and troublesome to operate. The calibration results are greatly affected by human factors.

[0004] In addition, the above-mentioned calibration methods are all contact calibration methods. The operation of the contact calibration method is complicated, the calibration accuracy is low, and it cannot meet the test requirements.

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