A concept for fault tolerant design and improved availability of active composite elastic structures

D. Soeffker; K. Wolters; I. Krajcin

doi:10.1117/12.599593

17 May 2005 A concept for fault tolerant design and improved availability of active composite elastic structures

D. Soeffker, K. Wolters, I. Krajcin

Proceedings Volume 5764, Smart Structures and Materials 2005: Smart Structures and Integrated Systems; (2005) https://doi.org/10.1117/12.599593
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

New functionalities, higher comfort and increasing performance requirements are often be solved by adding new technologies to existing (passive) solutions. Monitoring and control approaches uses additional sensors and actuators, new materials, microprocessors and new devices realizing new and improved functionalities. Two effects are becoming more and more interesting: (1) the lifetime of new actuators/materials strongly depends on the usage-history, (2) the functionality of the new composed systems depends on the fully functionality of all elements. In the consequence, the availability of such new systems is decreased by the number of elements and depends strongly on the use. These effects are known and act against new developments improving performance behavior also in mechanical engineering, automotive systems etc. This will be also the case for multifunctional composite or compound systems such as piezomaterials, magnetostrictive alloys or smart memory alloys (SMA) and is actually within the focus of the Structural-Health-Monitoring (SHM)-community. This contribution explains a new and systematically structured methodological approach to avoid and eliminate failures in mechatronical systems in an integrated and intelligent way to achieve a desirable or required amount of utilization in compliance with a defined failure rate. The result is an enhancement of the dependability of such a system.

Citation Download Citation

D. Soeffker, K. Wolters, and I. Krajcin "A concept for fault tolerant design and improved availability of active composite elastic structures", Proc. SPIE 5764, Smart Structures and Materials 2005: Smart Structures and Integrated Systems, (17 May 2005); https://doi.org/10.1117/12.599593

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KEYWORDS

Reliability

Sensors

Actuators

Control systems

Composites

Integration

Shape memory alloys

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