Lippenberger M, Dengler P, Wandinger A, Schmidt M (2016)
Publication Type: Conference contribution
Publication year: 2016
Publisher: Elsevier B.V.
Book Volume: 83
Pages Range: 1299-1307
Conference Proceedings Title: Physics Procedia
DOI: 10.1016/j.phpro.2016.08.137
Liquid Crystal Elastomers constitute a class of intelligent materials and actuators. External stimulation induces an internal phase-change that results in a mechanical motion of the Liquid Crystal Elastomer. External stimuli can be humidity, thermal energy but also radiation with an appropriate wavelength. In this paper we use the photomechanic response of Liquid Crystal Elastomers as a driving force for a controlled actuator, operating in feedback constellation with a tuned cascade-compensator. To accomplish this, we go the methodical route of dynamic system investigation consisting of an analysis of the phenomenological system-properties, the identification of the dynamic behaviour and the overall synthesis of the feedback-control loop. Since we also take practical considerations into account, we present a coordinated hard- and software concept to realize the application of the Liquid Crystal Elastomer as a controlled actuator. An application guide complements the paper and discusses the limits of this class of actuators.
APA:
Lippenberger, M., Dengler, P., Wandinger, A., & Schmidt, M. (2016). Photoresponsive liquid crystal elastomers as feedback controlled light-driven actuators - Theory, real-time behaviour, limitations. In Physics Procedia (pp. 1299-1307). Furth, DE: Elsevier B.V..
MLA:
Lippenberger, Michael, et al. "Photoresponsive liquid crystal elastomers as feedback controlled light-driven actuators - Theory, real-time behaviour, limitations." Proceedings of the 9th International Conference on Photonic Technologies, LANE 2016, Furth Elsevier B.V., 2016. 1299-1307.
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