Mr. Weiyi Zhang Profile

Weiyi Zhang

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Proceedings Article | 5 June 2024 Paper

A multi-channel pneumatic servo positive or negative pressure integrated console for structural strength air tightness test

Jianping Yao, Jing Liu, Yatian Zheng, Weiyi Zhang

Proceedings Volume 13163, 131633Z (2024) https://doi.org/10.1117/12.3030783

KEYWORDS: Control systems, Servomechanisms, Design, Signal processing, Control systems design, Automatic control, Material fatigue, Process control, Switches, Error control coding

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In the static and fatigue tests of full-scale aircraft structures, it is necessary to conduct air tightness assessments on key components such as the fuel tank, cockpit, and fuselage. Through air tightness assessment, it can be found whether each component has defects, damage or wear, as well as whether it meets design specifications and quality requirements. If the airtightness of key components is poor and air leakage occurs, it is likely to reduce work efficiency and even cause safety accidents. The airtightness assessment of key components such as fuel tanks, cockpit, and fuselage plays a crucial role in improving the performance and safety of aircraft. Therefore, there is an urgent need to develop multi-channel air tightness test loading equipment to solve the urgent need of model test. This paper mainly uses air pressure as the power source, uses mature universal servo control execution components to achieve inflation and deflation control, and designs a dedicated control circuit to process the control signals of the multi-channel loading system. A multi-channel pneumatic servo positive or negative pressure comprehensive control console is developed, and technical verification is carried out. It has been applied in full-scale structural fatigue testing.

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