Methods and apparatus to adjust folding wing tips
A histogram, moving data technology, applied in wing adjustment, control using feedback, drag reduction, etc., can solve problems such as inaccuracy, time-consuming, inability to adjust actuation or drive system backlash
Active Publication Date: 2019-01-29
THE BOEING CO
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Problems solved by technology
However, these known centering and / or positioning techniques can be inaccurate, can be time consuming, and / or cannot adjust for backlash within the actuation or drive system
Method used
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[0095] 1. A device comprising:
[0096] an actuator causing movement of a folded portion of the aerodynamic structure, the folded portion having an associated backlash;
[0097]a sensor for acquiring movement data of the folded portion during movement of the folded portion; and
[0098] A processor determines a backlash of the folded portion to characterize the deviation based on the movement data.
[0099] 2. The device according to item 1, further comprising a location data analyzer generating the histogram data based on the movement data.
[0100] 3. The apparatus of clause 2, wherein the location data analyzer identifies peaks in the histogram data to determine the deviation.
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Methods and apparatus to adjust folding wing tips are disclosed. A disclosed example apparatus includes an actuator to cause a movement of a folding portion of an aerodynamic structure, where the folding portion has an associated backlash. The example apparatus also includes a sensor to acquire movement data of the folding portion during movement of the folding portion, and a processor to determine a bias of the folding portion based on the movement data to characterize the backlash.
Description
technical field [0001] The present disclosure relates generally to folding wingtips of aircraft, and more particularly, to methods and apparatus for adjusting folding wingtips. Background technique [0002] In recent years, some commercial aircraft have been designed with relatively large wingspans to increase fuel efficiency and / or to increase carrying capacity. However, some airports cannot accommodate these large wingspans. Accordingly, some of these aircraft have implemented folded wingtips to reduce the effective wingspan to be able to move within these airports while still retaining the fuel efficiency advantages associated with relatively large wingspans. [0003] A typical folding wingtip system has an actuation system for folding and extending the wingtip. Because the degree of rotation of the folded wingtip relative to the neutral angle (e.g., a rotation angle of 0 degrees relative to the wing centerline reference) can significantly affect latching, locking, and ...
Claims
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IPC IPC(8): G05D3/12
CPCG05D3/12B64C3/56Y02T50/10
Inventor 保罗·杰·克莱内阿诺德·F·阿戈达马格
Owner THE BOEING CO