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Institution

École centrale de Nantes

EducationNantes, France
About: École centrale de Nantes is a education organization based out in Nantes, France. It is known for research contribution in the topics: Finite element method & Control theory. The organization has 1543 authors who have published 3431 publications receiving 67706 citations. The organization is also known as: Ecole Centrale de Nantes & Ecole centrale de Nantes.


Papers
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Journal ArticleDOI
TL;DR: In the case of aircraft components, AM technology enables low-volume manufacturing, easy integration of design changes and, at least as importantly, piece part reductions to greatly simplify product assembly.
Abstract: The past few decades have seen substantial growth in Additive Manufacturing (AM) technologies. However, this growth has mainly been process-driven. The evolution of engineering design to take advantage of the possibilities afforded by AM and to manage the constraints associated with the technology has lagged behind. This paper presents the major opportunities, constraints, and economic considerations for Design for Additive Manufacturing. It explores issues related to design and redesign for direct and indirect AM production. It also highlights key industrial applications, outlines future challenges, and identifies promising directions for research and the exploitation of AM's full potential in industry.

1,132 citations

Journal ArticleDOI
TL;DR: The principal contribution of the present work is to show that the control strategy can be designed in a way that greatly simplifies the application of the method of Poincare to a class of biped models, and to reduce the stability assessment problem to the calculation of a continuous map from a subinterval of R to itself.
Abstract: Biped robots form a subclass of legged or walking robots. The study of mechanical legged motion has been motivated by its potential use as a means of locomotion in rough terrain, as well as its potential benefits to prothesis development and testing. The paper concentrates on issues related to the automatic control of biped robots. More precisely, its primary goal is to contribute a means to prove asymptotically-stable walking in planar, underactuated biped robot models. Since normal walking can be viewed as a periodic solution of the robot model, the method of Poincare sections is the natural means to study asymptotic stability of a walking cycle. However, due to the complexity of the associated dynamic models, this approach has had limited success. The principal contribution of the present work is to show that the control strategy can be designed in a way that greatly simplifies the application of the method of Poincare to a class of biped models, and, in fact, to reduce the stability assessment problem to the calculation of a continuous map from a subinterval of R to itself. The mapping in question is directly computable from a simulation model. The stability analysis is based on a careful formulation of the robot model as a system with impulse effects and the extension of the method of Poincare sections to this class of models.

995 citations

Journal ArticleDOI
TL;DR: In this paper, the progress in wave energy conversion in Europe during the past ten years is reviewed and current activities and initiatives in the wave energy sector at National and Union level are described.
Abstract: The progress in wave energy conversion in Europe during the past ten years is reviewed and current activities and initiatives in the wave energy sector at National and Union level are described. Other important activities worldwide are summarized. The technical and econ

908 citations

Journal ArticleDOI
TL;DR: The goal is to obtain a robust sliding mode adaptive-gain control law with respect to uncertainties and perturbations without the knowledge of uncertainties/perturbations bound (only the boundness feature is known).
Abstract: This article proposes new methodologies for the design of adaptive sliding mode control. The goal is to obtain a robust sliding mode adaptive-gain control law with respect to uncertainties and perturbations without the knowledge of uncertainties/perturbations bound (only the boundness feature is known). The proposed approaches consist in having a dynamical adaptive control gain that establishes a sliding mode in finite time. Gain dynamics also ensures that there is no overestimation of the gain with respect to the real a priori unknown value of uncertainties. The efficacy of both proposed algorithms is confirmed on a tutorial example and while controlling an electropneumatic actuator.

676 citations


Authors

Showing all 1576 results

NameH-indexPapersCitations
Dario Farina9483232786
Larry Wasserman8042829907
Suresh G. Advani7145518111
Julio Saez-Rodriguez6833619188
Stéphane Roux6862719123
Thomas Cokelaer571408768
Mark D. Plumbley533699730
Jorge Angeles5251813771
Francisco Chinesta5053410083
Ying Zhang505039951
Zhen-Yu Yin462846544
Gilles Pijaudier-Cabot452558827
Alain Bernard454239764
Pierre-Antoine Gourraud421566637
Pierre-Yves Hicher421895045
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202320
202243
2021180
2020221
2019225
2018296