Modeling method suitable for appearance of single aviation conduit

Abstract

The invention discloses a modeling method suitable for the appearance of a single aviation conduit. The modeling method comprises the following steps of acquiring the three-dimensional depth data of the single aviation conduit from any fixed visual angle by utilizing a depth camera; processing the acquired three-dimensional depth data, for example, converting the three-dimensional depth data intothe point cloud data, denoising and sampling the point cloud data, and calculating the normal vector of each point cloud; extracting the central axis of the aviation conduit by adopting a cylinder subdivision method; fitting each segmented cylindrical surface of the aviation conduit by using a cylindrical fitting algorithm, and extracting the radius of each segmented cylindrical surface; and constructing a three-dimensional digital model of the whole aviation conduit through a three-dimensional modeling software by utilizing the extracted central axis and the radius of each segmented cylindrical surface. According to the method, the problem that in the prior art, the single aviation conduit appearance modeling is difficult to accurately and rapidly achieve is solved, the aviation conduit modeling efficiency is improved, and the high-quality, stable and high-efficiency modeling method for the single aviation conduit parts is achieved.

Description

technical field [0001] The invention relates to the technical field, in particular to a modeling method suitable for the shape of a single aviation conduit. Background technique [0002] The hydraulic, fuel, environmental control, oxygen and other systems inside the aircraft are intricately distributed with conduits of different specifications and sizes. The conduit is one of the key components of the aircraft. Due to its advantages of light weight, toughness and low consumption , in the field of aerospace, it can play the role of pressure transmission, fuel and gas transportation, cable protection, etc. Among them, a single aviation conduit is more and more widely used because of its high strength and high toughness. At the same time, a single aviation conduit is also Basic component of other types of aviation conduits. Therefore, the position of the single aviation duct in the aircraft system is very important. In the process of daily maintenance and repair of aircraft, ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a modeling method suitable for the shape of a single aviation catheter, which uses a depth camera to collect the three-dimensional data of the partial incomplete model of the aviation catheter in a single-view state, and sequentially obtains the central axis of the catheter and the radius of each segmented cylindrical surface , and then construct the overall three-dimensional digital model of the aviation duct, the model construction speed is high, the precision is high, and the complete data of the aviation duct is not required, which solves the problem that it is difficult to accurately and quickly realize the shape modeling of a single aviation duct in the existing technology, and improves the construction of the aviation duct. The efficiency of the model realizes a high-quality, stable and efficient modeling method for a single aviation duct part

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