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Publications, papers published in May 1999/communications publiées en mai 1999
- 1
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A. Taghizad and G. Bouwer.
Evaluation of helicopter handling qualities improvements during a
steep approach using new piloting modes.
In AHS American Helicopter - 55th Annual Forum, Montreal
(Canada), 25 - 27 May 1999. AHS.
The paper describes the evaluation of two new piloting modes in terme
of handling qualities improvements during a helicopter steep approach. The
new piloting modes are the Translational Rate Commande (TRC) and the Speed &
Glide Slope control (SGS) In order to simulate the behaviour of a BO105
helicopter equipped with either the TRC or the SGS, two Conceptual Simulation
Models (CSM) are developed and implemented on the DLR ground based simulator
ar Braunschweig. A steep approach scenario is also defined and is available
on this simulator. The task consists of a dynamic descent of the helicopter
from 500 m altitude to approximetely 100 m with an average slope angle of -8°
Dynamic descent means that the slope angle, the heading and the speed are
varying and the pilot has to follow these variations with a required
precision. Handling Qualitie investigations organised at Braunschweig with 4
pilots particpation provided comparisons of the 2 piloting modes (TRC &
SGS)with existing configurations (basic BO105, RCAH : Rate Commande Attitude
Hold, ACAH : Attitude Command Attitude Hold). Good and promising results on
TRC and SGS demonstrated the high interest of this kind of piloting modes in
specific missions of helicopters where the trajectory control is primordial.
- 2
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H. D. Tuan and P. Apkarian.
D.C.optimization in robust control synthesis.
OR (Communications of the Operations Research Society of
Japan), 44(5):247-252, May 1999.
article publié en japonais.
- 3
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G. Ferreres and V. Fromion.
Hinfini control for a flexible transmission system.
European Journal of Control, 5(2-4):185-192, May 1999.
The aim of this paper is to synthesise a discrete-time Hinfini
controller for a flexible transmission system, proposed as a benchmark at the
1995 European Control Conference. A set of design specifications in both time
and frequency domains is to be met for the three available plants models. The
final Hinfini controller compares favourably with previously proposed
controllers : nearly all design specifications are satisfied despite the low
complexity of the control law.
- 4
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K. Rota, G. Bel, and C. Thierry.
Relations clients-fournisseurs et planification de la production pour
une entreprise impliquée dans plusieurs chaînes logisitiques.
In 3ème congrès international de Génie Industriel :
l'intégration des ressources humaines et des technologies : le défi,
Montréal (Canada), 26 - 28 mai 1999. Ecole Polytechnique de Montréal.
Cet article présente une approche qui prend en compte les relations
de coopération d'une entreprise de production petite série avec ses clients
et fournisseurs pour l'établissement du plan de production. L'approche
utilise un modèle de planification de l'entreprise et un modèle de simulation
des interactions avec ses clients et fournisseurs.
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