Application and prospect of in-situ nondestructive testing of reusable liquid rocket engine
Reusable space launch vehicle is the cutting-edge of national strategic science and technology,and the development of reusable liquid rocket engines has become an urgent demand under this trend.After the rocket returns,the engine is a key inspection and maintenance object for the entire rocket.By using non-destructive testing technology to obtain structural health status information in the original state of the engine,which is crucial to quickly determine whether the product life meets the requirements for reuse and improve the reliability of liquid rocket engine reuse.The current non-destructive testing technologies applied in the aerospace field were reviewed,and their applicability in liquid rocket engines was evaluated and analyzed.Based on the characteristics of liquid rocket engines and the application scenarios of reusable non-destructive testing,there is an urgent need for research on technologies such as ultrasonic testing,digital image measurement,plume spectroscopy,and fast response dynamic sensors.At the same time,automated and intelligent specialized testing equipment should be developed to form a rapid use,maintenance,processing,and testing system,achieving portable,efficient,defect visualiza-tion,and quantification testing capabilities for liquid rocket engines.
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维普
