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Aircraft fuel quantity sensor layout method suitable for large overload and anti-flight working conditions

A layout method and sensor technology, applied in instruments, special data processing applications, constraint-based CAD, etc., can solve the problems of missing optimal solutions, unconsidered, lost, etc., to reduce optimization space, avoid repeated judgments, and achieve automation high effect

Active Publication Date: 2021-08-10
XI AN JIAOTONG UNIV +1
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Problems solved by technology

In terms of sensor layout in China, manual layout has been adopted for a long time, and the layout is carried out according to the geometric size of the fuel tank model combined with theoretical analysis, which relies heavily on the experience of designers and requires a lot of calculations
[0003] In recent years, some researchers have proposed some automatic sensor layout methods, but their disadvantages are: when generating the installation line, it can only be generated at a fixed angle or according to the direction specified by the discrete points at the bottom of the fuel tank, and it is impossible to automatically generate various tilt angles. Installation line; in the calculation process, for the multiple sets obtained by the constraint of unmeasurable oil volume, the method of threshold limit is used to merge in advance. The non-intersection part leads to the fact that the optimal solution is not considered in the deleted part during the merging process, and the optimal solution is lost with a high probability, which further makes the performance of the generated sensor layout solution poor or cannot find a sensor layout that meets the requirements scheme; and throughout the optimization process, the continuity judgment method cannot satisfy the constraint principle of the tilt sensor
[0005] The optimization results obtained by only considering the vertical arrangement or a single inclination angle arrangement cannot meet the performance of oil quantity measurement. It is necessary to design a layout optimization method that considers various inclination angle sensors during the sensor layout optimization process, and proposes to avoid losing the optimal solution design

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  • Aircraft fuel quantity sensor layout method suitable for large overload and anti-flight working conditions

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be declared that the described embodiment is only a preferred embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] A method for layout of an aircraft fuel quantity sensor applicable to large overload and anti-flight working conditions provided by the present invention comprises the following steps:

[0054] 1. Divide the layout area of ​​the bottom and top of the fuel tank, and generate discrete points on the bottom and top

[0055] 1.1) Import the model of the fuel tank into 3D model processing software such as CATIA or Pro / E.

[0056] 1.2) Extract the layout area at the bottom and the top area of ​​the fuel tank model re...

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Abstract

The invention discloses an aircraft fuel quantity sensor layout method suitable for large overload and anti-flight working conditions, and aims to solve the problems that an existing layout optimization method loses an optimal solution and cannot meet aircraft fuel quantity measurement sensor layout under the large overload and anti-flight working conditions. In order to achieve the purpose, the method comprises the steps of dividing and dispersing feasible installation areas at the bottom and the top of the oil tank; generating a multi-angle sensor mounting line; carrying out pre-filtering treatment on the installation line; discretizing and combining the attitude angles of the oil surface; obtaining a mounting line set group meeting the unmeasurable oil quantity constraint according to the oil surface posture; dividing and combining the set groups; and selecting an optimal sensor layout scheme from the divided set groups according to continuity requirements and attitude error constraints. The method has the advantages of being high in universality, good in optimization performance and capable of automatically optimizing the layout scheme of the inclination sensor, and the work requirement for layout optimization of the oil mass measurement sensor under the large overload and anti-flying working conditions can be met.

Description

technical field [0001] The invention belongs to the field of measuring the fuel quantity of an aircraft fuel tank, and in particular relates to an aircraft fuel quantity sensor layout method suitable for large overload and anti-flight working conditions. Background technique [0002] The fuel tank measurement system is an important part of the aircraft fuel system, and it is the basis for the pilot to accurately estimate the fuel volume, and it also undertakes the alarm function of the aircraft when the fuel tank is full or low. At present, capacitive sensors are widely used at home and abroad to measure the amount of aircraft oil. According to the different oil immersion heights, the sensors output different capacitance values ​​to the on-board computer. The on-board computer calculates the remaining oil by calculating the attitude angle and height of the oil plane. volume of. The layout of the sensor needs to fully consider the limitation of the number of sensors, the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/15G06F30/20G06T17/00G06F111/04
CPCG06F30/17G06F30/15G06F30/20G06T17/00G06F2111/04
Inventor 郑帅王子涵杨朋涛赵浩然洪军吴志强
Owner XI AN JIAOTONG UNIV
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