Lightweight ferromagnetic shape memory based vibration dampers: from passive to active control andenergy harvesting (SMARTDAMP)

随着近年来轻型结构和设计的兴起，阻尼和控制不良振动在许多工程学科中起着越来越重要的作用。铁磁形状记忆合金（FSMA）是一种新型的机械-磁传感器，具有被动阻尼、主动控制、在线监测和能量采集等功能。FSMA涂层以及箔和聚合物复合阻尼元件在轻型结构中的应用是非常有前途的。然而，在这一点上，定制的合成和对结果性质的彻底探索仍然是非常不确定的。最终目标是建立基于FSMA的可控阻尼元件，本项目将遵循严格的开发路线，从阻尼元件的合成，表征和优化到各种性能和疲劳的严格评估。阻尼有望可调的综合条件和deliberately可控的应用程序的外部磁场或补充涡流阻尼。同时作为应变仪和能量采集器，免维护主动阻尼系统与反馈和远程可控性的设想。

With the recent boom in lightweight construction and design, dampingand control of undesirable vibrations plays an increasing role innumerous engineering disciplines. Ferromagnetic shape memoryalloys (FSMA) constitute a rather novel class of mechano-magnetictransducers that intrinsically bear all properties required for passivedamping, active control, online monitoring as well as energyharvesting in vibrating systems. For application in lightweightconstructions, FSMA coatings as well as foil and polymer compositedamping elements are highly promising. Yet, tailored synthesis andthorough exploration of resulting properties is still greatlyunestablished at this point. With the final aim of establishing FSMAbased deliberately controlable damping elements, this project willfollow a stringent development route, ranging from synthesis,characterization and optimization of the damping elements to rigorousassessments of all flavors of performance and fatigue. Dampingpromisesto be tunable by synthesis conditions and deliberatelycontrollable by application of an external magnetic field orsupplemental eddy current damping. Concurrently acting as straingauges and energy harvesters, service-free active damping systemswith feedback and remote controllability are envisioned.