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Modeling and Navigation Filtering for Spacecraft Rendezvous with Flexible Appendages and Sloshing
Claudet Thomas ; Sanfedino Francesco ; Panicucci Paolo ; Losa Damiana ; Alazard Daniel,
(2025), 35th AAS/AIAA Space Flight Mechanics, 2025-01-19, 2025-01-23, Lihue, Hawaii
Modeling and Navigation Filtering for Spacecraft Rendezvous with Flexible Appendages and Sloshing
Modeling and analysis of a flexible spinning ...
Article | Rodrigues Ricardo | 2025
The derivation of a linear fractional representation (LFR) model for a flexible, spinning and uniform Euler-Bernoulli beam is accomplished using the Lagrange technique, fully capturing the centrifugal force generated by the spinni...
Modeling of stratospheric balloons and robust...
Article | Kassarian Ervan | 2024
This paper investigates state-of-the-art modeling and control techniques for the robust line-of-sight pointing control of an optical payload on-board a stratospheric balloon, to meet stringent pointing requirements in the context ...
Modeling of stratospheric balloons and robust line-of-sight pointing control
A novel graph-based theory for convexificatio...
Article | Claudet Thomas | 2024
Optimizing high-level mission planning constraints is traditionally solved in exponential time and requires to split the problem into several ones, making the connections between them a convoluted task. This paper aims at generali...
Linear Parameter-Varying gain-scheduled attitude controller for a spinning spacecraft involving large flexible booms
Rodrigues Ricardo ; Sanfedino Francesco ; Alazard Daniel,
(2024) In :, Proceedings of the 2024 CEAS EuroGNC conference, CEAS EuroGNC 2024, 2024-06-11, 2024-06-13, Bristol, UK
European Satellite Benchmark for Control Education and Industrial Training
Sanfedino Francesco ; Iannelli Paolo ; Alazard Daniel ; Pelletier Emilie ; Bennani Samir ; Girouart Bénédicte,
(2024) In :, IFAC-PapersOnLine, 2nd IFAC Workshop on Aerospace Control Education - WACE 2024, 2024-07-22, 2024-07-24, Bertinoro, Italy
European Satellite Benchmark for Control Education and Industrial Training : IFAC-PapersOnLine
Parametric sensitivity analysis for the robust control of uncertain space systems
Kassarian Ervan ; Sanfedino Francesco ; Alazard Daniel ; Evain Hélène,
(2024), CEAS EuroGNC 2024, 2024-06-11, 204-06-13, Bristol, UK
Parametric sensitivity analysis for the robust control of uncertain space systems
Chapter 12 : "GNC Verification and validation"
Pace Francesco ; Paolini Emanuele ; Sanfedino Francesco ; Alazard Daniel ; Colagrossi Andrea ; Pesce Vincenzo ; Silvestrini Stefano,
(2023) In :, Modern Spacecraft Guidance, Navigation, and Control From System Modeling to AI and Innovative Applications
Chapter 14 : "Applicative GNC cases and examples"
Silvestrini Stefano ; Colagrossi Andrea ; Paolini Emanuele ; Rivolta Aureliano ; Capannolo Andrea ; Pesce Vincenzo ; Bhaskaran Shyam ; Sanfedino Francesco ; Alazard Daniel,
(2023) In :, Modern Spacecraft Guidance, Navigation, and Control : From System Modeling to AI and Innovative Applications
Linear Fractional Transformation Modeling of ...
Article | Kassarian Ervan | 2023
This brief proposes a new linear fractional transformation (LFT) modeling approach for uncertain linear parameter-varying (LPV) multibody systems with parameter-dependent equilibrium. Traditional multibody approaches, which consis...
Port inversions of parametric Two-Input Two-O...
Article | Alazard Daniel | 2023
In the context of multi-body modeling techniques, this paper details the port inversion operations, which can be performed on the Two-Input-Two-Output Port (TITOP) model of a flexible substructure to take into account various boun...
Port inversions of parametric Two-Input Two-Output Port models of flexible substructures
Robust monolithic versus distributed control/...
Article | Sanfedino Francesco | 2023
This paper presents an end-to-end framework for robust structure/control optimization of an industrial benchmark. When dealing with space structures, a reduction of the spacecraft mass is paramount to minimize the mission cost and...
Successive Convexification for On-Board Scheduling of Spacecraft Rendezvous Missions
Claudet Thomas ; Labroquère Jérémie ; Losa Damiana ; Sanfedino Francesco ; Alazard Daniel,
(2023), ESA GNC and ICATT conference, 2023-06-12, 2023-06-16, Sopot, Poland
Successive Convexification for On-Board Scheduling of Spacecraft Rendezvous Missions
Satellite Dynamics Toolbox Library : a tool to model multi-body space systems for robust control synthesis and analysis
Sanfedino Francesco ; Alazard Daniel ; Kassarian Ervan ; Somers Franca,
(2023), 22nd IFAC World Congress, 2023-07-09, 2023-07-14, Yokohama, Japan
Inertial and digital line of sight stabilization for LEO and GEO missions
Guercio Nicola ; Henrot Simon ; Chambon Thomas ; Boquet Fabrice ; Deslaef Nicolas ; Alazard Daniel ; Sanfedino Francesco ; Berrojo L. ; Muñoz De La Torre E. ; Spanoudakis Peter ; Rouvinet J. ; Torasso A.,
(2023), ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques, 2023-06-12, 2023-06-16, Sopot, Poland
Inertial and digital line of sight stabilization for LEO and GEO missions
Monolithic Versus Distributed Structure/Control Optimization of Large Flexible Spacecraft
Sanfedino Francesco ; Alazard Daniel ; Kiley Andy ; Watt Mark ; Simplicio Pedro ; Ankersen Finn,
(2023), ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques, 2023-06-12, 2023-06-16, Sopot, Poland
Monolithic Versus Distributed Structure/Control Optimization of Large Flexible Spacecraft
Double-stage active control of micro-vibrations for high accuracy pointing missions
Sanfedino Francesco ; Alazard Daniel ; Guercio Nicola ; Deslaef Nicolas,
(2023), ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques, 2023-06-12, 2023-06-16, Sopot, Poland
Double-stage active control of micro-vibrations for high accuracy pointing missions
Linear Parameter-Varying gain-scheduled attitude controller for an on-orbit servicing mission involving flexible large spacecraft and fuel sloshing
Rodrigues Ricardo ; Sanfedino Francesco ; Alazard Daniel ; Preda Valentin ; Olucha Javier,
(2023), ESA GNC and ICATT Conference, 2023-06-12, 2023-06-16, Sopot, Poland
Robust line-of-sight pointing control on-board a stratospheric balloon-borne platform
Kassarian Ervan ; Sanfedino Francesco ; Alazard Daniel ; Montel Johan ; Chevrier Charles-Antoine,
(2022), CEAS EuroGNC 2022, 2022-05-05, 2022-05-03, Berlin, DE
Robust line-of-sight pointing control on-board a stratospheric balloon-borne platform
Robust integrated control/structure co-design for stratospheric balloons
Kassarian Ervan ; Sanfedino Francesco ; Alazard Daniel ; Montel Johan ; Chevrier Charles-Antoine,
(2022), 10th IFAC Symposium on Robust Control Design (ROCOND 2022), 2022-08-30, Kyoto, JP
Robust integrated control/structure co-design for stratospheric balloons
Parametric sub-structuring models of large sp...
Article | Finozzi Antonio | 2022
Modern and future high precision pointing space missions face increasingly high challenges related to the widespread use of large flexible structures. The development of new modeling tools which are able to account for the multidi...
Parametric sub-structuring models of large space truss structures for structure/control co-design
Advances in fine line-of-sight control for la...
Article | Sanfedino Francesco | 2022
The increased need in pointing performance for Earth observation and science Space missions together with the use of lighter and flexible structures directly come with the need of a robust pointing performance budget from the very...
Advances in fine line-of-sight control for large space flexible structures
Integrated modelling of microvibrations induc...
Article | Sanfedino Francesco | 2022
Modern and future observation Space missions face increasingly more demanding pointing performance requirements.
This is accompanied with the development of larger lightweight flexible structures. This paper outlines a methodology...
Modeling, robust control synthesis and worst-...
Article | Rodrigues Ricardo | 2022
This paper outlines a complete methodology for modeling an on-orbit servicing mission scenario and
designing a feedback control system for the attitude dynamics that is guaranteed to robustly meet point-
ing requirements, despite ...
A short course on TITOP models for space system modelling
Alazard Daniel ; Sanfedino Francesco,
(2021), IFAC Workshop on Aerospace Control Education WACE 2021, 2021-09-10, 2021-09-09, Virtual event, IT
Autonomous navigation system for free floating experiments in parabolic flights
Sanfedino Francesco ; Alazard Daniel ; Galvao-Adarme Gabriel ; Vivó Martín Ismael ; Chauffaut Corentin ; Kassarian Ervan ; Dubois Louis ; Rognant Mathieu ; Evain Hélène,
(2021), IFAC Workshop on Aerospace Control Education WACE 2021, 2021-09-10, 2021-09-09, IT
Autonomous navigation system for free floating experiments in parabolic flights
Analytical Port Inversion For A Flexible Model In The Two-Input Two-Output Port Approach
Finozzi Antonio ; Sanfedino Francesco ; Alazard Daniel,
(2021), 10th ECCOMAS Thematic Conference on MULTIBODY DYNAMICS, 2021-12-15, 2021-12-12, Budapest, HU
Analytical Port Inversion For A Flexible Model In The Two-Input Two-Output Port Approach
Satellite Dynamics Toolbox library (SDTlib) - User’s Guide
Alazard Daniel ; Sanfedino Francesco,
(2021)
Worst-case pointing performance analysis for large flexible spacecraft
Courie Ilham ; Sanfedino Francesco ; Alazard Daniel,
(2021), 8th ICATT - International Conference on Astrodynamics Tools and Techniques, 2021-06-25, 2021-06-23, Virtual event, EU
Worst-case pointing performance analysis for large flexible spacecraft
Robust Active Mirror Control Based on Hybrid ...
Article | Sanfedino Francesco | 2021
Modern space-observation missions demand stringent pointing requirements that motivated a significant amount of research on the topic of microvibration isolation and line-of-sight stabilization systems. While disturbances can be r...
Robust Active Mirror Control Based on Hybrid Sensing for Spacecraft Line-of-Sight Stabilization
Modeling and stability of balloon-borne gondo...
Article | Kassarian Ervan | 2021
The objective of this paper is to fill the gap in literature on an exhaustive coupled pendulum-torsion model for balloon-borne systems. The development of such a model is required to explain the unexpected oscillatory behavior rec...
Modeling and stability of balloon-borne gondolas with coupled pendulum-torsion dynamics
Characterization of sadm induced disturbances and their effects on spacecraft pointing errors
Alazard Daniel ; Cumer Christelle ; Sanfedino Francesco ; Oddenino Davide ; Brugnoli Andrea,
(2021), 11th International ESA Conference on Guidance, Navigation & Control Systems (ESA GNC), 2021-06-25, 2021-06-22, NL
Characterization of sadm induced disturbances and their effects on spacecraft pointing errors
Structure-preserving discretization of port-Hamiltonian plate models
Brugnoli Andrea ; Alazard Daniel ; Pommier-Budinger Valérie ; Matignon Denis,
(2021), Mathematical Theory of Networks and Systems, 2021-08, 2021-08, Cambridge, GB
Structure-preserving discretization of port-Hamiltonian plate models
A port-Hamiltonian formulation of linear ther...
Article | Brugnoli Andrea | 2021
A port-Hamiltonian formulation for general linear coupled thermoelasticity and for the thermoelastic bending of thin structures is presented. The construction exploits the intrinsic modularity of port-Hamiltonian systems to obtain...
Port-Hamiltonian flexible multibody dynamics
Article | Brugnoli Andrea | 2021
A new formulation for the modular construction of flexible multibody systems is presented. By rearranging the equations for a flexible floating body and introducing the appropriate canonical momenta, the model is recast into a cou...
Convergent EKF-based control allocation : general formulation and application to a Control Moment Gyro cluster
Kassarian Ervan ; Rognant Mathieu ; Evain Hélène ; Alazard Daniel ; Chauffaut Corentin,
(2020) In :, 2020 American Control Conference (ACC), American Control Conference 2020, 2020-07-03, 2020-07-01, Denver, US
Satellite dynamics toolbox for preliminary design phase
Alazard Daniel ; Sanfedino Francesco,
(2020), 43rd Annual AAS Guidance and Control Conference, 2020-02-05, 2020-01-30, Brechenridge, US
Robust and adaptable dynamic response reshapi...
Article | Preda Valentin | 2020
This paper outlines a complete methodology for designing a control system that reshapes the dynamic response of the flexible structure to robustly match the dynamics of a given adaptable reference model. The procedure was experime...
Robust and adaptable dynamic response reshaping of flexible structures
Interconnection of the Kirchhoff plate within the port-Hamiltonian framework
Brugnoli Andrea ; Alazard Daniel ; Pommier-Budinger Valérie ; Matignon Denis,
(2020), 2019 IEEE 58th Conference on Decision and Control (CDC), 2019-12-13, 2019-12-11, Nice, FR
Interconnection of the Kirchhoff plate within the port-Hamiltonian framework
Co-design of aircraft vertical tail and control laws using distributed electric propulsion
Nguyen Van Eric ; Alazard Daniel ; Döll Carsten ; Pastor Philippe,
(2019), Automatic Control in Aerospace - 21st ACA 2019, 2019-08-30, 2019-08-27, Cranfield, GB
Co-design of aircraft vertical tail and control laws using distributed electric propulsion
Distributed Electric Propulsion : a Technology requiring Multi-Disciplinary Aircraft Design
Nguyen Van Eric ; Pastor Philippe ; Döll Carsten ; Alazard Daniel,
(2019), More Electric Aircraf (MEA 2019), 2019-02-07, 2019-02-06, Toulouse, FR
Distributed Electric Propulsion : a Technology requiring Multi-Disciplinary Aircraft Design
Satellite Attitude Control with a six-Control Moment Gyro Cluster tested under Microgravity Conditions
Evain Hélène ; Alazard Daniel ; Rognant Mathieu ; Solatges Thomas ; Brunet Antoine ; Mignot Jean ; Rodriguez Nicolas ; Dias-Ribeiro Adrien,
(2019), International Symposium on Space Flight Dynamics 2019 (ISSFD), 2019-02-28, 2019-02-24, Melbourne, AU
Modeling and Control of a Rotating Flexible S...
Article | Aoues Saïd | 2019
In this brief, we develop a mathematical model of a flexible spacecraft system composed of a hub and two symmetrical beams using the port-Hamiltonian framework. This class of system has favorable properties, such as passivity for ...
Modeling and Control of a Rotating Flexible Spacecraft: A Port-Hamiltonian Approach
Port-Hamiltonian formulation and symplectic d...
Article | Brugnoli Andrea | 2019
The port-Hamiltonian formulation is a powerful method for modeling and interconnecting systems of different natures. In this paper, the port-Hamiltonian formulation in tensorial form of a thick plate described by the Mindlin–Reiss...
Partitioned finite element method for the Mindlin plate as a port-Hamiltonian system
Brugnoli Andrea ; Alazard Daniel ; Pommier-Budinger Valérie ; Matignon Denis,
(2019), 3nd IFAC Workshop on Control of Systems Governed by Partial Differential Equations CPDE 2019, 2019-05-24, 2019-05-20, Oaxaca, MX
Partitioned finite element method for the Mindlin plate as a port-Hamiltonian system
Port-Hamiltonian formulation and symplectic d...
Article | Brugnoli Andrea | 2019
The mechanical model of a thin plate with boundary control and observation is presented as a port-Hamiltonian system (pHs), both in vectorial and tensorial forms : the Kirchhoff-Love model of a plate is described by using a Stokes-...
A novel dynamic model of a reaction wheel assembly for high accuracy pointing space missions
Sanfedino Francesco ; Alazard Daniel ; Pommier-Budinger Valérie ; Boquet Fabrice ; Falcoz Alexandre,
(2018), ASME 2018 Dynamic Systems and Control Conference (DSCC2018), 2018-10-03, 2018-09-30, Atlanta, US
A novel dynamic model of a reaction wheel assembly for high accuracy pointing space missions
Towards an Aircraft with Reduced Lateral Static Stability Using Differential Thrust
Nguyen Van Eric ; Alazard Daniel ; Pastor Philippe ; Döll Carsten,
(2018) In :, 2018 Aviation Technology, Integration, and Operations Conference, 2018 Aviation Technology, Integration, and Operations Conference, AIAA AVIATION Forum, 2018-06-29, 2018-06-25, Atlanta, US
Disturbance rejection for a rotating flexible spacecraft : a port-Hamiltonian approach
Alazard Daniel ; Aoues Saïd ; Cardoso-Ribeiro Flávio Luiz ; Matignon Denis,
(2018), 6th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control, 2018-05-04, 2018-05-01, Valparaíso, CL
Disturbance rejection for a rotating flexible spacecraft: a port-Hamiltonian approach
Reduction of Vertical Tail Using Differential Thrust : Influence on Flight Control and Certification
Nguyen Van Eric ; Troillard Pierre ; Jézégou Joël ; Alazard Daniel ; Pastor Philippe ; Döll Carsten,
(2018), Advanced Aircraft Efficiency in a Global Air Transport System (AEGATS’18), 2018-10-25, 2018-10-23, Toulouse, FR
Reduction of Vertical Tail Using Differential Thrust: Influence on Flight Control and Certification
Finite element based N-Port model for prelimi...
Article | Sanfedino Francesco | 2018
This article presents and validates a general framework to build a linear dynamic Finite Element-based model of large exible structures for integrated Control/Structure design. An extension of the Two-Input Two-Output Port (TITOP)...
Finite element based N-Port model for preliminary design of multibody systems
Multicontrol Surface Optimization for Blended...
Article | Denieul Yann | 2018
Control architecture sizing is a main challenge of blended-wing–body design. This aircraft configuration typically features redundant elevons located at the trailing edge of the wing, acting simultaneously on pitch and roll axes. ...
Multicontrol Surface Optimization for Blended Wing–Body Under Handling Quality Constraints
Flexible Mode Modelling of the InSight Lander...
Article | Murdoch Naomi | 2018
We present an updated model for estimating the lander mechanical noise on the InSight seismometer SEIS, taking into account the flexible modes of the InSight lander. This new flexible mode model uses the Satellite Dynamics Toolbox...
Flexible Mode Modelling of the InSight Lander and Consequences for the SEIS Instrument
Space Debris Removal using a Tether : A Model
Velez Pedro ; Atie Tala ; Alazard Daniel ; Cumer Christelle,
(2017), IFAC World Congress 2017, 2017-07-14, 2017-07-09, Toulouse, FR
A New Procedure for Tuning an Allocator and Designing a Robust High-Level Control Law for Over-Actuated Systems
Evain Hélène ; Rognant Mathieu ; Alazard Daniel ; Mignot Jean,
(2017), IFAC World Congress 2017, 2017-07-14, 2017-07-09, Toulouse, FR
Guidance and control of magnetic space tug
Fabacher Emilien ; Lizy-Destrez Stéphanie ; Alazard Daniel ; Ankersen Finn ; Profizi Alexandre,
(2017), ESA GNC 2017- 10th International ESA Conference on Guidance, navigation & Control Systems, 2017-06-02, 2017-05-29, SALZBURG, AT
Dynamic modeling and analysis of micro-vibration jitter of a spacecraft with solar arrays drive mechanism for control purposes
Sanfedino Francesco ; Alazard Daniel ; Pommier-Budinger Valérie ; Boquet Fabrice ; Falcoz Alexandre,
(2017), 10th International ESA Conference on Guidance, Navigation & Control Systems (GNC 2017), 2017-06-02, 2017-05-29, Salzburg, AT
Probabilistic μ-analysis for system performances assessment
Falcoz Alexandre ; Alazard Daniel ; Pittet Christelle,
(2017), IFAC World Congress 2017, 2017-07-14, 2017-07-09, Toulouse, FR
Integrated design of flight control surfaces and laws for new aircraft configurations
Denieul Yann ; Bordeneuve-Guibé Joël ; Alazard Daniel ; Toussaint Clément ; Taquin Gilles,
(2017), IFAC World Congress 2017, 2017-07-14, 2017-07-09, Toulouse, FR
Integrated design of flight control surfaces and laws for new aircraft configurations
Guidance of magnetic space tug
Article | Fabacher Emilien | 2017
Magnetic tugging of a target satellite without thrust capacity can be interesting in various contexts, as for example End-Of-Life management, or to complete launchers capabilities. The aim is to gradually modify the orbit of the t...
Linear dynamics of flexible multibody systems...
Article | Chebbi Jawhar | 2017
A new methodology to derive the linear model of flexible multibody system dynamics is presented in this paper. This approach is based on the twoport model of each body allowing the model of the whole system to be built just connec...
Linear dynamics of flexible multibody systems : a system-based approach
Nonlinear dynamic inversion for redundant systems using the EKF formalism
Evain Hélène ; Rognant Mathieu ; Alazard Daniel ; Mignot Jean,
(2016) In :, 2016 American Control Conference (ACC), 2016 American Control Conference (ACC), 2016-07-08, 2016-07-06, Boston, US
Linear Modeling of a Flexible Substructure Actuated through Piezoelectric Components for Use in Integrated Control/Structure Design
Perez Gonzalez José Alvaro ; Loquen Thomas ; Alazard Daniel ; Pittet Christelle,
(2016), 20th IFAC Symposium on Automatic Control in Aerospace (ACA 2016), 2016-08-25, 2016-08-21, Sherbrooke, CA
Control of Magnetic Space Tug
Fabacher Emilien ; Alazard Daniel ; Ankersen Finn ; Lizy-Destrez Stéphanie ; De Mijolla Léonore,
(2016), 20th IFAC Symposium on Automatic Control in Aerospace (ACA 2016), 2016-08-25, 2016-08-21, Sherbrooke, CA
Integrated Control/Structure Design of a Large Space Structure using Structured Hinfinity Control
Perez Gonzalez José Alvaro ; Pittet Christelle ; Alazard Daniel ; Loquen Thomas,
(2016), 20th IFAC Symposium on Automatic Control in Aerospace (ACA 2016), 2016-08-25, 2016-08-21, Shrerbrooke, CA
Integrated Control/Structure Design of a Large Space Structure using Structured Hinfinity Control
Flexible Multibody System Linear Modeling for...
Article | Perez Gonzalez José Alvaro | 2016
The main objective of this study is to propose a methodology for building a parametric linear model of flexible multibody systems (FMS) for control design. This new method uses a combined finite element (FE)–state-space approach b...
Control of a flexible spacecraft using discrete IDA-PBC design
Aoues Saïd ; Matignon Denis ; Alazard Daniel,
(2015), 5th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control, 2015-07-07, 2015-07-04, Lyon, FR
Control of a flexible spacecraft using discrete IDA-PBC design
Two-input two-output port model for mechanical systems
Alazard Daniel ; Perez Gonzalez José Alvaro ; Loquen Thomas ; Cumer Christelle,
(2015), Scitech 2015 - 53rd AIAA Aerospace Sciences Meeting, 2015-01-09, 2015-01-05, Kissimmee, US
Integrated design and control of a flying wing using nonsmooth optimization techniques
Denieul Yann ; Bordeneuve-Guibé Joël ; Alazard Daniel ; Toussaint Clément ; Taquin Gilles,
(2015) In :, Advances in Aerospace Guidance, Navigation and Control, 3rd CEAS EuroGNC, Specialist Conference on Guidance Navigation & Control, 2015-04-15, 2015-04-13, Toulouse, FR
Interactions of Aircraft Design and Control : Actuators Sizing and Optimization for an Unstable Blended Wing-Body
Denieul Yann ; Alazard Daniel ; Bordeneuve-Guibé Joël ; Toussaint Clément ; Taquin Gilles,
(2015) In :, AIAA Atmospheric Flight Mechanics Conference, AIAA Atmospheric Flight Mechanics Conference, 2015-06-26, 2015-06-22, Dallas, Texas, US
Guidance and navigation for electromagnetic formation flight orbit modification
Fabacher Emilien ; Lizy-Destrez Stéphanie ; Alazard Daniel ; Ankersen Finn ; Jourdas Jean-François,
(2015), EuroGNC 2015, 2015-04-15, 2015-04-13, Toulouse, FR
Guidance and navigation for electromagnetic formation flight orbit modification
A Flexible Appendage Model for Use in Integrated Control/Structure Spacecraft Design
Perez Gonzalez José Alvaro ; Pittet Christelle ; Alazard Daniel ; Loquen Thomas ; Cumer Christelle,
(2015), 1st IFAC Workshop on Advanced Control and Navigation for Autonomous Aerospace Vehicles (ACNAAV’15), 2015-06-12, 2015-06-10, Séville, ES
A Flexible Appendage Model for Use in Integrated Control/Structure Spacecraft Design
Controlling spacecraft landings with constant...
Article | Croon Guido De | 2015
Two bio-inspired landing strategies are studied. Both strategies enforce a constant ventral optic flow with, respectively, (1) constantly decreasing time-to-contact, or (2) exponentially decreasing time-to-contact. Until now these...
Controlling spacecraft landings with constantly and exponentially decreasing time-to-contact
Robust impedance active control of flight control devices
Condomines Jean-Philippe ; Defaÿ François ; Alazard Daniel,
(2014), World Congress of the International Federation of Automatic Control (IFAC), 2014-08-29, 2014-08-24, Cape Town, ZA
Codesign mechanics / attitude control for a simplified AOCS preliminary synthesis
Cumer Christelle ; Alazard Daniel ; Grynadier Alain ; Pittet Christelle,
(2014), ESA GNC 2014 - 9th International ESA Conference on Guidance, navigation & Control Systems, 2014-06-06, 2014-06-02, Porto, PT
Codesign mechanics / attitude control for a simplified AOCS preliminary synthesis
Modeling & control of a space robot for active debris removal
Dubanchet Vincent ; Saussié David ; Alazard Daniel ; Bérard Caroline ; Le Peuvedic Catherine,
(2014), ESA GNC 2014 - 9th International ESA Conference on Guidance, navigation & Control Systems, 2014-06-06, 2014-06-02, Porto, PT
Modeling & control of a space robot for active debris removal
LPV techniques for the control of an airborne micro-launcher
Bordeneuve-Guibé Joël ; Alazard Daniel ; Desmariaux Jean,
(2014) In :, AIAA Guidance, Navigation, and Control Conference, AIAA - Scitech, 2014-01-17, 2014-01-13, National Harbor, Maryland, US
Dynamic modeling and analysis of spacecraft w...
Article | Guy Nicolas | 2014
This article describes a general framework to generate linearized models of satellites with large flexible appendages. The obtained model is parametrized according to the tilt of flexible appendages and can be used to validate an ...
Dynamic modeling and analysis of spacecraft with variable tilt of flexible appendages
A global approach for the study of forces developed by a tubular linear moving magnet
Allias Jean-François ; Llibre Jean-François ; Henaux Carole ; Brière Yves ; Alazard Daniel,
(2014) In :, Electrical Machines (ICEM), 2014 International Conference on, ICEM 2014 - International Conference on Electrical Machines, 2014-09-02, 2014-09-05, Berlin, Germany
Avionics/Control co-design for large flexible space structures
Alazard Daniel ; Loquen Thomas ; De Plinval Henry ; Cumer Christelle,
(2013) In :, AIAA Guidance, Navigation, and Control (GNC) Conference, AIAA Guidance, Navigation, and Control (GNC) Conference, 2013-08-22, 2013-08-12, Boston, US
H2 Optimal and Frequency Limited Approximation Methods for Large-Scale LTI Dynamical Systems
Pierre Vuillemin ; Poussot-Vassal Charles ; Alazard Daniel,
(2013) In :, 5th Symposium on System Structure and Control, 5th Symposium on System Structure and Control (SCCC- IFAC 2013), 2013-02-06, 2013-02-04, Grenoble, FR
Design of a flight control architecture using...
Article | Gabarrou Marion | 2013
We design a feedback control architecture for longitudinal flight of an aircraft. The multi-level architecture includes the flight control loop to govern the short term dynamics of the aircraft, and the autopilot to control the lo...
Design of a flight control architecture using a non-convex bundle method
Robustness Analysis of Helicopter Ground Reso...
Article | Sanches Leonardo | 2013
This paper presents a stability robustness analysis of the helicopter ground-resonance phenomenon. By using the lifting procedure the uncertain linear-time-periodic model of the helicopter is transformed into an augmented uncertai...
Robustness Analysis of Helicopter Ground Resonance with Parametric Uncertainties in Blade Properties
Aircraft attitude estimation based on central difference Kalman filter
Han Ping ; Gan Haoliang ; He Weikun ; Alazard Daniel ; Defaÿ François ; Brière Yves,
(2013) In :, 2012 IEEE 11th International Conference on Signal Processing, 11th International Conference on Signal Processing (ICSP 2012), 2012-10-25, 2012-10-21, Beijing, CN
A Frequency-Limited H2 Model Approximation Method with Application to a Medium-Scale Flexible Aircraft
Vuillemin Pierre ; Poussot-Vassal Charles ; Alazard Daniel,
(2013) In :Advances in Aerospace Guidance, Navigation and Control, Advances in Aerospace Guidance, Navigation and Control, 2nd CEAS Specialist Conference on Guidance, Navigation & Control, 2013-04-12, 2013-04-10, Delft, NL
Control design and gain-scheduling using observer-based structures
Alazard Daniel,
(2012) In :, Advances in Aerospace Guidance, Control, and Estimation
Attitude control of satellites with flexible appendages : a structured H infinity control design
Loquen Thomas ; De Plinval Henry ; Cumer Christelle ; Alazard Daniel,
(2012), AIAA Guidance, Navigation, and Control Conference
Attitude control of satellites with flexible appendages: a structured H infinity control design
Kinematic Analysis of Spatial Geared Mechanis...
Article | Penaud Julie | 2012
In this paper, a general method for kinematic analysis of complex gear mechanisms, including bevel gear trains and non-collinear input and output axes, is presented. This new approach is based on the null-space of the kinematic co...
Parametrically excited helicopter ground reso...
Article | Sanches Leonardo | 2012
The present work is aimed at verifying the influence of high asymmetries in the variation of in-plane lead-lag stiffness of one blade on the ground resonance phenomenon in helicopters. The periodical equations of motions are analy...
Parametrically excited helicopter ground resonance dynamics with high blade asymmetries
LPV techniques for the control of an airborne micro-launcher
Bordeneuve-Guibé Joël ; Dall’Orso Mickael ; Guy Nicolas ; Alazard Daniel ; Carpentier Benjamin,
(2011), 8th International ESA Conference on Guidance, Navigation & Control Systems - GNC 2011
LPV techniques for the control of an airborne micro-launcher
Instability zones for isotropic and anisotrop...
Article | Sanches Leonardo | 2011
Helicopter ground resonance is an unstable dynamic phenomenon which can lead to the total destruction of the aircraft during take-off or landing phases. The earliest research in this domain was carried out by Coleman and Feingold ...
Instability zones for isotropic and anisotropic multibladed rotor configurations.
Impedance active control of flight control devices
Defaÿ François ; Alazard Daniel ; Antraygue Cedric,
(2010), 2010 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, 2010-07-09, 2010-07-06, Montréal, CA
Kinematic analysis of complex gear mechanisms
Penaud Julie ; Alazard Daniel,
(2010), The 2010 International Conference of Mechanical Engineering
Structured flight control law design using non-smooth optimization
Gabarrou Marion ; Alazard Daniel ; Noll Dominikus,
(2010), 18th IFAC Sympoisum on AUtomatic Control in Aerospace - ACA’2010
Structured flight control law design using non-smooth optimization
Instability zones identification in multiblade rotor dynamics
Sanches Leonardo ; Michon Guilhem ; Berlioz Alain ; Alazard Daniel,
(2010), 11th Pan-American Congress of Applied Mechanics, 2010-01-08, 2010-01-04, Foz do Iguaçu, BR
Instability zones identification in multiblade rotor dynamics
Optimisation non lisse appliquée à la synthèse de lois de commande de vol structurées
Gabarrou Marion ; Alazard Daniel ; Noll Dominikus,
(2010), Sixième Conférence Internationale Francophone d’Automatique - CIFA 2010
Optimisation non lisse appliquée à la synthèse de lois de commande de vol structurées
Instability zones for isotropic and anisotropic multiblades rotor configurations
Sanches Leonardo ; Michon Guilhem ; Berlioz Alain ; Alazard Daniel,
(2010), 17ème conférence Vibrations, Chocs et Bruits 2010, 2010-06-17, 2010-06-15, Ecully, FR
Instability zones for isotropic and anisotropic multiblades rotor configurations
BAMOSS : an experimental tested for flexible structure dynamics modeling and control
Alazard Daniel ; Bouttes Roland,
(2009), European Control Conference 2009 - ECC’09
BAMOSS: an experimental tested for flexible structure dynamics modeling and control
Embedding FDI in launcher attitude controllers
Ramos Fausto ; Alazard Daniel,
(2009), 4th International Conference on Recent Advances in Space Technologies, 2009-06-13, 2009-06-11, Istanbul, Turkey