The research team gets together for a group photo. [Photo/WeChat account: xmu_1921]

Regular thorough examinations of airplanes have long been deemed to be a necessary measure to ensure flight safety. A nonlinear ultrasonic testing technology, independently developed by the major equipment health management technology research team of Xiamen University, or XMU, has realized more accurate and effective detection without damaging the airplane body.

In recent years, the team, led by Professor Li Weibin from the School of Aerospace Engineering at the university, has focused on the service safety requirements of aircraft and their key components and has launched a series of research explorations.

Conventional ultrasound testing is suitable for detecting larger damage to a plane, but if there is minor damage, it is difficult to provide accurate and effective diagnostic information.

Compared with traditional ultrasound testing methods, the XMU nonlinear ultrasound testing technology is more sensitive to minor and early damage.

The technology has been validated in key stages of the domestically produced C919 aircraft, providing technical support for structural stability and safety.

"The technology can also be deeply integrated with intelligent detection methods in the future, making detection more automated and the ability to analyze data stronger," said Li, adding that efforts would also be made in promoting the technology's adaptation and applying it in extreme situations, such as at high temperatures and high speeds.