General assembly testing method of aircraft system

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 ...

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

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