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

用于航空航天结构调节监测的非线性声学 (NACMAS)

基本信息

批准号：
10078324
负责人：
金额：
$ 30.12万
依托单位：
THETA TECHNOLOGIES LTD
依托单位国家：
英国
项目类别：
BEIS-Funded Programmes
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=10078324
关键词：
Nonlinear Acoustics conditioning monitoring Aerospace

项目摘要

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.

航空航天领域面临着在飞行就绪系统和子系统中嵌入传感器的压力，以便状态监测可以提供有关此类系统在制造期间、地面上或维护期间的适航性的连续预警报告Theta Technologies 是一家总部位于英国的全球领先企业，致力于航空航天部件无损检测非线性共振技术的商业化。适用的组件可以是金属、复合材料或陶瓷，并且可以采用常规或增材制造方式制造。非线性共振提供了独特的机会来检测非常细小的裂纹（称为“接触裂纹”或“隐形缺陷”）或分层的形成和扩展（例如“接吻债券”）和冲击损坏远远早于任何最终失败。然而，该方法的本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且可靠的线性，以便检测到的任何非线性都可以自信地与该系统中的缺陷相关联。该项目将进行对嵌入复合材料子组件中的一系列传感器进行性能评估。预期结果是最佳实践专业知识，表明哪些传感器和耦合器适合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。