This presentation demonstrates progress in applications of so-called Smart Technologies to Adaptive Impact Absorption. The monograph (Ref.[1]) presents more detailed discussion of the considered problems and research results obtained recently in the Smart-Tech team at the IPPT.
Smart Technologies are understood as incorporation of imbedded systems (distributed hardware with driving electronics and software tools) into engineering structures in order to improve their safety or performance.
Motivation for the undertaken research on Adaptive Impact Absorption (AIA) is to respond to requirements for high impact energy dissipation. Typically, the suggested solutions focus on the design of passive energy absorbing systems, which are designed to work effectively in pre-defined impact scenarios. In contrast to the standard passive systems the proposed approach provides active adaptation of energy absorbing structures (equipped with sensor system detecting and identifying impact in advance and controllable semi-active dissipaters, so-called structural fuses) with high ability of adaptation to extreme overloading (cf. Ref.[2]).Feasible, dissipative devices (structural fuses) under considerations can be based on the following technologies: adaptive dissipaters based on MR fluids or adaptive dissipaters based on (hydraulic or pneumatic) piezo or magnetostrictive-valves.
The presentation will demonstrate the following AIA applications, which are currently under development: Adaptive Landing Gears (ADLAND, Ref.[3]), Adaptive wind turbines (UPWIND, Ref.[4]) and Adaptive Inflatable Structures.

References

[1] Jan Holnicki-Szulc (Ed.) „Smart Technologies for Structural Safety”, J.Wiley, 2008
[2] L. Knap, J. Holnicki-Szulc, ”Adaptive Crashworthiness Concept”, Int. Journal of Impact Enegineering, (2004).
[3] EU Project ADLAND IST-FP6-2002-2006, http://smart.ippt.gov.pl/adland/.
[4] EU Project UPWIND FP6-ENERGY-2006-2009, http://www.duwind.tudelft.nl/

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