A digital installation method of acceleration sensor

A technology of acceleration sensor and installation method, which is applied in the direction of aircraft assembly, etc., can solve the problems of low efficiency, high cost, cumbersome analysis and operation, etc., achieve the effect of improving assembly accuracy, solving the problems of installation accuracy and efficiency, and improving the level of assembly technology
CN108528755BActive Publication Date: 2021-04-09SHENYANG AIRCRAFT CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG AIRCRAFT CORP
Publication Date
2021-04-09

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Abstract

A digital installation method of an acceleration sensor belongs to the field of aviation manufacturing engineering / aircraft assembly. The steps are as follows: firstly, after the aircraft is docked through digital integration, the aircraft coordinate system and the laser tracker space coordinate system are connected through the ground ERS or TB common reference point. The coordinate axes are aligned and fitted. Secondly, connect the transfer tooling, sensor support and the body structure, use a laser tracker to measure the measurement plate, import the measurement results into the theoretical three-dimensional digital model, and establish a spatial comparison between the theoretical plane and the measured plane. Finally, the deflection angle of the actual measured plane relative to the theoretical plane is obtained through digital and analog measurement and calculation, and the optimal compensation scheme for the body structure is obtained by overall translation along the X-axis. After the body structure is compensated, follow the above steps to connect and retest until the Design requirements. The invention can improve the assembly technology level, shorten the assembly production cycle, improve the installation efficiency, and have great significance for the assembly efficiency and quality of fuselage parts.
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Description

technical field

[0001] The invention belongs to the field of aviation manufacturing engineering / aircraft assembly, and relates to an installation method of an aircraft acceleration sensor based on digital measurement, which is used for precise installation of parts in the process of digital automatic docking of large parts. Background technique

[0002] Modern high-performance fighter jets generally use fly-by-wire flight control systems. As one of the main sensors of the system, the acceleration sensor provides normal and lateral acceleration feedback for the flight control system, which is used for the calculation of functions such as control stability and boundary limitations. The deviation of the installation position and accuracy of the acceleration sensor will cause the deviation of the feedback parameters during the flight, which will affect the flight quality.

[0003] In order to avoid error accumulation, the acceleration sensor is generally installed at the end of ...

Claims

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