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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

Active Publication Date: 2021-04-09
SHENYANG AIRCRAFT CORP
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Problems solved by technology

The former is low in efficiency and expensive; the latter is cumbersome in analysis and operation

Method used

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  • A digital installation method of acceleration sensor
  • A digital installation method of acceleration sensor
  • A digital installation method of acceleration sensor

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific examples.

[0020] In order to guide the key mating surface information to the outer surface of the machine body to facilitate measurement, the present invention provides a digital installation method of the acceleration sensor, which is implemented based on the designed transfer tool 3 . The transfer tooling 3 is composed of five parts, which are respectively a bracket 9, a self-made bolt 5, a threaded plate 6, a measuring plate 7 and a measuring ball 8, such as figure 1 , figure 2 shown. The transfer tooling 3 is in the shape of an inverted "L" and includes two parts: a beam and a longitudinal beam, and a bracket 9 is provided between the beam and the longitudinal beam; one end of the beam is provided with a threaded plate 6, which is connected to the sensor The bracket 2 is connected, and a compensation block is arranged on the sensor bracket 2; the other end of the beam is fixedly...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/10
CPCB64F5/10
Inventor 韩野陆兴凯陈栋良
Owner SHENYANG AIRCRAFT CORP
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