High dynamic deformation measurement system and measurement method for complex curved surfaces based on intelligent skin

Abstract

The invention belongs to the field of deformation measurement, and discloses a complex curved surface high-dynamic deformation measurement system and method based on intelligent skins. The complex curved surface high-dynamic deformation measurement system based on the intelligent skins includes sub systems such as the intelligent skins, a signal source generator, a signal receiving terminal, a radio frequency cable and a modem. The complex curved surface high-dynamic deformation measurement method based on the intelligent skins conducts measuring based on the deformation measurement system, and mainly includes the following steps that firstly, the flexible intelligent skins are attached to curved surfaces of a curved surface structure; secondly, the signal source generator generates carrier signals; thirdly, the receiving terminal captures the signals and demodulates the signals; and finally, location information of each skin is calculated accurately, and the deformation measurement ofthe complex curved surfaces is realized based on massive data. The complex curved surface high-dynamic deformation measurement system and method based on the intelligent skins adopt the flexible skins, the ideal aerodynamic shape of an aircraft is not changed, and the complex curved surface high-dynamic deformation measurement system has the advantages of real-time capability, expandability, lowcost and the like.

Description

Technical field: [0001] The invention belongs to the field of deformation measurement, in particular to a complex curved surface high dynamic deformation measurement system and measurement method based on intelligent skin. Background technique: [0002] Wing deformation measurement is an important part of aircraft structural health detection technology research. Aircraft wings are a typical representative of complex surfaces. At present, there are two main types of deformation monitoring methods for complex surfaces such as wings: one is to use stereo cameras and scanners, etc. The external device performs long-distance measurement, and the other type is to attach the sensor along the surface or embed it in the curved surface for contact measurement. The comparative document (Zhu Lianqing et al., Application and Development of Intelligent Flexible Deformable Wing Technology. Chinese Journal of Mechanical Engineering, 2018) pointed out that most of the traditional measurement...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low measurement frequency and poor measurement accuracy in complex curved surface deformation measurement, the present invention proposes a complex curved surface high dynamic deformation measurement system and measurement method based on intelligent skin. The main technical solutions are as follows:

Images