000012677 001__ 12677
000012677 005__ 20160920162637.0
000012677 04107 $$aeng
000012677 046__ $$k2016-09-05
000012677 100__ $$aHu, N.
000012677 24500 $$aControlled elastic instabilities in cylindrical shells for energy harvesting devices

000012677 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012677 260__ $$bTaylor and Francis Group, London, UK
000012677 506__ $$arestricted
000012677 520__ $$2eng$$aThe sudden motion from elastic instabilities is a promising avenue to develop energy harvesting devices for systems with structural response in the quasi-static range (frequency << 1 Hz). Key to the concept is the ability to control the generation of snap-through transitions. This paper introduces the concept of using cylindrical shells as mechanical energy concentrators and frequency modulators for use in energy harvesting devices. Cylinders with Non-uniform Stiffness Distributions (NSD), which have been shown to allow control of their elastic postbuckling response were used. Finite element simulations and pilot experiments on 3D printed shells with PVDF piezoelectric harvesters were conducted to evaluate the concept. Results demonstrated that NSD designs allow for considerably enhanced placement of piezoelectric harvesters over uniform shell designs and consequently increased harvested power. The presented research shows that cylindrical shells with controlled postbuckling response are a viable structural prototype for use in energy harvesting devices.

000012677 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012677 653__ $$a

000012677 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012677 720__ $$aHu, N.$$iLiu, S.$$iBurgueño, R.
000012677 8560_ $$ffischerc@itam.cas.cz
000012677 8564_ $$s1714465$$uhttps://invenio.itam.cas.cz/record/12677/files/125.pdf$$yOriginal version of the author's contribution as presented on CD, 125.pdf.
000012677 962__ $$r12552
000012677 980__ $$aPAPER