Nonlinear Acoustics for the conditioning monitoring of Aerospace structures (NACMAS)

在航空航天部门中和航空航天部门上存在将传感器嵌入飞行准备系统和子系统中的压力，以便状态监测可以在制造期间提供关于这种系统的飞行性的连续和早期预警报告，Theta Technologies是一家总部位于英国的非线性共振技术商业化的全球领导者，航空航天部件的破坏性测试。非线性共振提供了一个独特的机会，可以在任何最终失效之前检测非常细微的裂纹（称为“接触裂纹”或“隐形裂纹”）或分层（如“接触焊”）和冲击损伤的形成和传播。然而，该方法的性质要求发射和接收传感器及其与被测系统的关系必须是充分和可靠的线性，以便检测到的任何非线性可以确信地与该系统中的缺陷相关联。预期成果是最佳实践诀窍，表明哪些传感器和耦合器适用于一系列航空航天子系统，以便使用非线性共振对航空航天结构进行状态监测。

There is pressure in and on the aerospace sector to embed sensors in flight-ready systems and subsystems in order that Condition Monitoring may provide continuous and early-warning reports as to the flightworthiness of such systems during their manufacture, while on the ground or during maintenance intervals.Theta Technologies is a UK-based global leader in the commercialisation of the Nonlinear Resonance technique for Non-Destructive Testing of aerospace components. Applicable components can be metallic, composite or ceramic, and they can be conventionally or additively manufactured.Nonlinear Resonance offers a unique opportunity to detect the formation and propagation of very fine cracks (known as 'contact cracks' or 'stealth flaws') or delaminations (such as 'kissing bonds') and impact damage far in advance of any eventual failure. The nature of the method, however, requires that transmission and reception sensors and their relationship with the system under test must be sufficiently and reliably linear, in order that any nonlinearity detected can be confidently associated with flaws in that system.The project will conduct a performance assessment of a range of sensors when embedded into composite subassemblies. The intended outcome is best-practice knowhow indicating which sensors and couplings are appropriate for a range of aerospace subsystems in order to carry out Conditioning Monitoring of aerospace structures using Nonlinear Resonance.