Radar cover shell replacement positioning detection method

Abstract

The invention relates to the technical field of aircraft radar cover maintenance, in particular to a radar cover shell replacement positioning detection method which comprises the steps of disassembling an original shell, installing a new shell and detecting the assembling precision of the new shell. When the original shell is demounted, all shell clamping mechanisms are used for clamping positioning, the original shell is in a position controlled state all the time, and the problem that due to the fact that bolts are demounted one by one, deformation and damage of a supporting frame are caused due to uneven stress between the original shell and the supporting frame is avoided; when the new shell is installed, the shell clamping mechanisms are used for clamping positioning, the position of the new shell is always kept at an accurate position, and it is guaranteed that the installation position of a locking screw is accurate; After side pressing pieces and cushion blocks of the shell clamping mechanisms are detached, remaining supporting protruding blocks become a measuring basis, whether installation of the new shell meets the requirement or not can be judged by measuring the distance between the edge of the new shell and the top faces of the supporting protruding blocks and comparing the distance with a design manual, the measuring process is simple, and efficiency is high.

Description

technical field [0001] The invention relates to the technical field of aircraft radome maintenance, in particular to a replacement positioning detection method for a radome shell. Background technique [0002] Most commercial transport aircraft have a radome at the nose position. The radome is a window for electromagnetic waves. Its function is to protect the antenna, prevent the environment from affecting and interfering with the working state of the radar antenna, and ensure the safe operation of the radar antenna. The radome includes a supporting frame and an outer shell. The supporting frame is made of metal and is not easy to be damaged, but the outer shell is made of composite materials, which is easy to be damaged due to bird strikes, hail, etc., and is usually repaired by replacing the outer shell; [0003] The shell of the radome is fixedly installed on the support frame by locking. Since the shell is made of composite material and has good elasticity, the locking p...

AI Technical Summary

Problems solved by technology

[0003] The shell of the radome is fixedly installed on the support frame by locking. Since the shell is made of composite material and has good elasticity, the locking process is carried out part by part. In order to ensure the accuracy requirements, frequent measurement and detection are required during the installation process. , but even so, the shell is prone to uncontrolled deformation during the installation process, resulting in the dimensional accuracy of the final shell and the support frame not meeting the requirements, and frequent debugging in the later stage is still required, and the process is heavy and error-prone

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