Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Xavier Lachenal"'
Publikováno v:
Wind Energy. 19:1325-1339
Aerodynamic and aeroacoustic performance of airfoils fitted with morphing trailing edges are investigated using a coupled structure/fluid/noise model. The control of the flow over the surface of an airfoil using shape optimization techniques can sign
Publikováno v:
Thin-Walled Structures. 94:129-134
A morphing wing structure is presented which is designed to have zero torsional stiffness to minimise actuation requirements. The concept consists of carbon fibre reinforced plastic strips which are initially curved prior to being flattened and assem
Publikováno v:
International Journal of Solids and Structures. 51(13):2479-2490
This study is concerned with the stability characteristics of helix shaped structures made of anisotropic, pre-stressed, thin flanges arranged in such a way as to enable and develop multi-stability. Previous research on similar structures assumed the
Publikováno v:
Journal of the Mechanics and Physics of Solids. 61:2087-2107
We present a cylindrical lattice structure that mimics the behaviour of the virus bacteriophage T4 in having two (or more) stable states which differ in their radii and length. While the virus achieves bistability through molecular mechanisms we use
Publikováno v:
Wind Energy. 16:283-307
With increasing size of wind turbines, new approaches to load control are required to reduce the stresses in blades. Experimental and numerical studies in the fields of helicopter and wind turbine blade research have shown the potential of shape morp
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 468:1230-1251
Conventional shape-changing engineering structures use discrete parts articulated around a number of linkages. Each part carries the loads, and the articulations provide the degrees of freedom of the system, leading to heavy and complex mechanisms. C
Publikováno v:
Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting.
A concept for a novel folding wing is presented, which, using the Brazier effect, can snap from a stable, extended position to a folded configuration. A wing typical of size used in an unmanned aircraft vehicle (UAV) is examined, including manufactur
Autor:
Alberto Pirrera, Paul M. Weaver, Xavier Lachenal, F Mattioni, Leonardo Cappello, Lorenzo Masia
Publikováno v:
BioRob
University of Bristol-PURE
Scopus-Elsevier
University of Bristol-PURE
Scopus-Elsevier
A novel actuator is presented that merges traditional electromechanical motors and multistable composite structures. Previously, it has been shown that these structures are able to arrange themselves in multiple stable configurations corresponding to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afd431a06495424acfcd29f5e9db7e7d
http://hdl.handle.net/11382/532317
http://hdl.handle.net/11382/532317
Autor:
Alberto Pirrera, Xavier Lachenal, Lorenzo Masia, Pietro Morasso, F Mattioni, Leonardo Cappello, Paul M. Weaver
Publikováno v:
Masia, L, Cappello, L, Morasso, P, Lachenal, X, Pirrera, A, Weaver, P & Mattioni, F 2013, CARAPACE : A novel composite advanced robotic actuator powering assistive compliant exoskeleton preliminary design . in 2013 IEEE International Conference on Rehabilitation Robotics (ICORR 2013) : Proceedings of a meeting held 24-26 June 2013, Seattle, Washington, USA ., 6650511, Proceedings of International Conference on Rehabilitation Robotics (ICORR), Institute of Electrical and Electronics Engineers (IEEE), pp. 1-8, 2013 IEEE 13th International Conference on Rehabilitation Robotics, ICORR 2013, Seattle, WA, United Kingdom, 24/06/13 . https://doi.org/10.1109/ICORR.2013.6650511
ICORR
ICORR
A novel actuator is introduced that combines an elastically compliant composite structure with conventional electromechanical elements. The proposed design is analogous to that used in Series Elastic Actuators, its distinctive feature being that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36dfb5fdbe97eea5c9acf7973fa71b1f
https://hdl.handle.net/1983/a756c7b9-6bae-4611-acd6-c23ece6b4625
https://hdl.handle.net/1983/a756c7b9-6bae-4611-acd6-c23ece6b4625
Publikováno v:
Smart Materials and Structures. 22:065016
This paper presents the design, analysis and realization of a zero stiffness twist morphing wind turbine blade. The morphing blade is designed to actively twist as a means of alleviating the gust loads which reduce the fatigue life of wind turbine bl