Surface deflection displacement field reconstruction method, device and equipment

Abstract

The present application relates to a reconstruction method, device and equipment for the deflection displacement field of a curved surface, which is applied to the deformation measurement of a wing with a large aspect ratio. N measurement points are set on the surface of the wing, and each measurement point is set with a For the strain sensor of orthogonal distribution, the value of N is an integer greater than 1 and not a prime number, and a laser displacement sensor is set on the net wing tooling of the wing perpendicular to the position of the measuring point, and the laser displacement sensor and An LVDT displacement sensor is connected across the measurement points. This application is used to solve the problem of deflection and deformation during flight for the large-aspect-ratio wing structure of an aircraft. The exact spatial coordinates of the strain gauges cannot be determined by using a single sensor network, so that the spatial displacement of the wing cannot be calculated and constructed. field problem.

Description

technical field [0001] The present application relates to the technical field of curved surface displacement field reconstruction, and in particular to a method, device and equipment for curved surface deflection displacement field reconstruction. Background technique [0002] Distributed sensor data surface reconstruction, that is, to establish a distributed sensor network, use sensor data combined with surface characteristics to establish surface equations, calculate and reconstruct the surface structure. [0003] Although the traditional strain gauge or fiber Bragg grating (FGB) distributed sensor network requires relatively few sensors, the FGB distributed sensor fiber core has poor shear stress resistance and is prone to breakage, so it is not suitable for engineering. [0004] For the large-aspect-ratio wing structure of an aircraft, the deflection deformation (referred to as deflection) during flight cannot be determined by using a single sensor network. The exact spa...

AI Technical Summary

Problems solved by technology

[0005] This application provides a reconstruction method, device and equipment for curved surface deflection displacement field, which is used to solve the problem of deflection deformation during flight for aircraft with large aspect ratio wing structure, and the strain cannot be determined by using a single sensor network The exact spatial coordinates of the slice, so that the problem of not being able to settle and construct the spatial displacement field of the wing

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