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Fiber bragg grating monitoring device and method for flapping deformation of flapping-wing robot in flight
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A fiber grating and monitoring device technology, applied in measurement devices, optical devices, aircrafts, etc., can solve the problems of large deviation of analysis results, difficult to explore the fine deformation mechanism of flapping wings, etc., and achieve the effect of small load
Pending Publication Date: 2021-12-21
WUHAN UNIV OF SCI & TECH
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Problems solved by technology
There are the following problems: the numerical method to study the flapping wing deformation is mostly to analyze the mechanism of the flapping wing deformation under the set relatively ideal assumptions, and the flapping wing model is simplified, the analysis results often have large deviations, and it is difficult to explore the flapping wing flapping deformation mechanism. dynamic fine deformation mechanism
[0012] The difficulty is that the existing technology cannot realize the direct contact measurement of the flapping wing deformation
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Embodiment 1
[0072] A fiber grating monitoring device for flapping deformation of a flapping wing robot in flight, comprising:
[0073] 1. The torso is a bird-like body structure, using lightweight carbon fiber as the skeleton to reduce the flight load of the flapping wing robot, and is used to assemble the flapping wing and fiber optic connector.
[0074] 2 flapping wings, distributed on the left and right sides of 1 torso, the left flapping wing is the 2-1 first flapping wing, and the right flapping wing is the 2-2 second flapping wing, both sides are wing-like structures, and the wing veins use carbon fiber As a skeleton support, a wing membrane is covered on the carbon fiber skeleton to form a flapping wing. The membrane material is Polydimethylsiloxane (PDMS), and a polymer fiber grating is implanted in the membrane to form a densely distributed sensor array. .
[0075] 3 Optical fiber connector, pasted on the upper part of 1 torso, is a hollow cuboid structure, which connects the po...
Embodiment 2
[0085] as attached figure 1 As shown, a fiber grating monitoring device and monitoring method for flapping deformation of a flapping wing robot in flight, including 1 torso, 2 flapping wings, 3 optical fiber connectors, 4 polymer fiber grating arrays, 5 multi-core silica fibers, 6 optical fibers Gratingwavelength demodulator, 7 calculation and analysis processors.
[0086] 2-1 first flapping wing, 2-2 second flapping wing;
[0087] In this embodiment, as attached figure 1, the first flapping wing 2-1 and the second flapping wing 2-2 are symmetrically arranged left and right along the torso 1, and the flapping wings on both sides use carbon fiber as the wing vein skeleton, and the PDMS material is covered on the skeleton as a patellar membrane, and the flapping flap along the The neutral layer is divided into upper and lower parts, the upper part of the first flapping wing 2-1 on the left is implanted with the first array of polymer fiber gratings, the lower part is implante...
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Abstract
The invention belongs to the technical field of robot sensing and measurement and discloses a fiber bragg grating monitoring device and method for flapping deformation of a flapping-wing robot in flight. A first flapping wing and a second flapping wing are respectively assembled on the left and right sides of a trunk part; a first array polymerfiber bragg grating, a second array polymerfiber bragg grating, a third array polymerfiber bragg grating and a fourth array polymer fiber bragg grating are respectively implanted in the first flapping wing and the second flapping wing; an optical fiber connector is arranged at an upper part of the trunk part and is connected with a multi-core quartzoptical fiber; the other end of the multi-core silica fiber is connected with one end of a fiber grating wavelength demodulator; and the fiber grating wavelength demodulator is used for demodulating and outputting a transmitted grating signal. According to the device, a polymer fiber grating implantation mode is adopted, and high-precision and spatial-constraint-free real-time measurement of flapping deformation can be realized.
Description
technical field [0001] The invention belongs to the technical field of robot sensing and measurement, and in particular relates to a fiber grating monitoring device and method for flapping deformation of a flapping-wing robot during flight. Background technique [0002] At present, the bionic flapping wing robot is an aircraft that simulates the flight characteristics of natural organisms such as birds, bats and insects. It has the advantages of small size and strong concealment, and has broad application prospects in military investigation and other fields. In recent years, domestic and foreign countries have attached great importance to the research and development of bionic flapping wing robots, and the investment in research and development has continued to increase. However, compared with the excellent stability and maneuverability that insects or birds can rely on to quickly adjust the wing surface movement mode, the orthopter developed by humans still has a big gap in...
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