Structural State Sensing

Acellent proposes development of structural state sensing systems that function analogously to nervous systems. Different sensor types (including piezoelectric) will be used in a variety of ways to determine system state within the complex structures and advanced materials used in aviation. Multi-Modal Sensing (MMS) states include selectable characteristics, from simple temperature and pressure to complex inferences, such as location and degree of damage. MMS systems are intended to communicate with computation / control systems enabling aircraft to automatically respond quickly to different detected environmental, loading, or damage states. This technology is anticipated to allow less massive future composite designs as MMS will allow physical compensation for unusual environments, system loadings, and mechanical material insults (damage). Timely sensor information will assist flight operations as well as allow more intelligent maintenance. Additionally, active sensing will be combined with passive detection technology to expand range and resolution of detected characteristics. Design emphasis is broadly placed on sensing capability, reducing implementation risk by leveraging Acellent’s SMART LAYER™ technology, low mass, and as little wiring as practical. BENEFIT: MMS can move to commercial aircraft as these incorporate increasing amounts of composites, leading to designs that weigh less, and can also respond to environments and loadings. Lighter weight translates to decreased drag, and associated fuel savings. Automated responsiveness can increase aerodynamic efficiency and piloting options should damage occur, decreasing cost and contributing to aviation safety.