General assembly testing method of aircraft system

A test method and aircraft system technology, applied in the direction of aircraft component testing, etc., can solve the problems of lack of specific specifications for the test process, repetitive labor of operators, affecting test efficiency, etc., so as to facilitate and quickly locate faults and improve safety and reliability. , the effect of clear structure

Active Publication Date: 2019-10-08
CHENGDU AIRCRAFT INDUSTRY GROUP
View PDF28 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to changes in the aircraft system architecture, the traditional single system test method can no longer meet the test requirements of modern aircraft. As an important link to ensure the installation and integration of aircraft systems and the correctness of system functions, the aircraft assembly system test needs to cover the entire process. Component-level testing, gradually integrated into system testing, and comprehensive joint debugging of the whole machine
[0003] The existing test process in the domestic aircraft assembly stage is based on the performance test requirements of each subsystem and the previous experience to arrange production. Due to the wide variety of test items and the cross-linking and coupling of signals between the various subsystems of the aircraft, there is a tight gap between the test items. Therefore, the test process needs to meet a specific test sequence. The whole process is very complicated, and operators are prone to repetitive work. During the test process, the failure problems encountered are often biased, and it takes more time to coordinate with specialized personnel. In terms of troubleshooting, it greatly affects the test efficiency; some test items are independent of each other and do not interfere with each other, but the existing process test process is basically carried out in series, which makes the test cycle longer and cannot meet production needs; the existing test process does not have Carry out specific specifications, there is a risk of on-board quality accidents

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • General assembly testing method of aircraft system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a method for general assembly testing of an aircraft system. The first step is to perform a conduction and impedance test without power-on, and perform a safe measurement to eliminate some faults to prevent damage to the finished product due to faults; the second step is Ensure the power supply voltage; the third step: conduct system function test and hydraulic inspection; the fourth step is to conduct system function inspection that requires hydraulic pressure; the fifth step is to do flight control and large synthesis. The system can effectively reduce test risk and facilitate and quickly locate faults. Gradually convert from signal-level testing to functional and performance testing.

[0042] The flow of the method, such as figure 1 As shown, it specifically includes the following steps:

[0043] Step 1: The cable network of the whole machine is connected, the connection relationship of the transfer plug is removed, and the connection relat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a general assembly testing method of an aircraft system. The method comprises the steps of 1), whole air craft cable network conduction; 2), impendence test; 3), power supply system test; 4), electrical measurement of a task system; 5), electromechanical power-on test; 6), bus test; 7), hydraulic system inspection; 8), lightening system inspection; 9), take-off and landingand landing gear inspection; 10), fire prevention system inspection; 11), function inspection of each sub-system; 12), engine inspection; 13), special functional structure inspection; and 14), flightcontrol test. According to the general assembly testing method of the aircraft system, the test work is decomposed and merged, so that different system test items of the same type are combined and tested; the test work is carried out in a layered mode, the test is carried out from a security perspective layer by layer, and the safety and reliability performance of the power-on test is improved, sothat the test risk is reduced; the test of a signal level is gradually converted into a function and a performance test, and a key path method and a parallel test method are adopted for design; and and test process flow of an immobilized aircraft system has a guiding function.

Description

technical field [0001] The invention relates to the technical field of aircraft performance testing, in particular to an aircraft system assembly testing method. Background technique [0002] The aircraft system is a complex system. In order to ensure the correctness and reliability of the system, a series of performance tests need to be carried out on the aircraft during the manufacturing process. In the past, the aircraft system adopted a distributed layout, that is, the systems were relatively independent. If signal cross-linking was required between the systems, communication lines or hard lines were added. After the system was installed, a single system could independently complete the system test. With the improvement of aircraft system integration, modern aircraft are based on the whole machine network platform, a large number of high-speed buses are used, and the system is highly integrated. Due to changes in the aircraft system architecture, the traditional single ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 罗鑫阮亮
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products