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TU Delft
2010 S.G.C. de Groot, J. Breukels, R. Schmehl, W.J. Ockels: “Multibody system model reduction for the derivation of a flight dynamics model for real-time kite control”. Manuscript, submitted to AIAA Journal of Aircraft. E.J. Terink, J. Breukels, R. Schmehl, W.J. Ockels: “Flight Dynamics and Stability of a Tethered Inflatable Kiteplane”. Manuscript, accepted for publication in AIAA Journal of Aircraft. J. Breukels, W.J. Ockels: “Simulation of a flexible arc-shaped surf kite”. Manuscript, submitted to AIAA Journal of Aircraft. J. Breukels, W.J. Ockels: "A Multi-Body System Approach to the Simulation of Flexible Membrane Airfoils". Manuscript, submitted to Aerotecnica Missili & Spazio (AIDAA). J. Breukels, W.J. Ockels: "Simulation of a Three Dimensional Flexible Sail Wing with an Inflated Tubular Spar". Manuscript, submitted to Aerotecnica Missili & Spazio (AIDAA). 2009 J. Breukels, W.J. Ockels: "A Multi-Body System Approach to simulation of inflated tubular beams". Manuscript, submitted to Journal of Multibody System Dynamics. R.F. Verheul, J. Breukels, W.J. Ockels: “Material selection and joining methods for the purpose of a high-altitude inflatable kite”. AIAA 2009-2338, 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Palm Springs, CA, USA, 4-5 May 2009. pdf 2008 P. Williams, B. Lansdorp, W.J. Ockels: “Optimal Crosswind Towing and Power Generation with Tethered Kites”. AIAA Journal of Guidance, Control and Dynamics, Vol. 31, No. 1, 2008. doi: 10.2514/1.30089 J. Breukels, W.J. Ockels: "Analysis of complex inflatable structures using a multi-body dynamics approach". AIAA 2009-2338, 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA, 7-10 April 2008. pdf P. Williams, B. Lansdorp, W.J. Ockels: “Nonlinear Control and Estimation of a Tethered Kite in Changing Wind Conditions”, AIAA Journal of Guidance, Control and Dynamics, Vol. 31, No. 3, 2008. doi: 10.2514/1.31604 B. Lansdorp, R. Ruiterkamp, P. Williams, W.J. Ockels: "Long-Term Laddermill Modeling for Site Selection". AIAA-2008-6690, AIAA Modeling and Simulation Technologies Conference and Exhibit, Honolulu, Hawaii, 18-21 August 2008. pdf P. Williams, B. Lansdorp, W.J. Ockels: “Modeling, Simulation, and Testing of Surf Kites for Power Generation”. AIAA 2008-6693, AIAA Modelling and Simulation Technologies Conference and Exhibit, Honolulu, Hawaii, USA, 18-21 August 2008. pdf P. Williams, B. Lansdorp, W.J. Ockels: “Modeling of Optimal Power Generation using Multiple Kites". AIAA 2008-6691, AIAA Modelling and Simulation Technologies Conference and Exhibit, Honolulu, Hawaii, USA, 18-21 August 2008. pdf 2007 A.R. Podgaets, W.J. Ockels: "Laddermill sail – a new concept in sailing". International Conference on Engineering Technology (ICET 2007), Kuala Lumpur, Malaysia, 11-14 December 2007. pdf A.R. Podgaets, W.J. Ockels: "Robust Control of Laddermill Wind Energy System". Wind Power Shanghai Conference, Shanghai, China, 1-3 November 2007. pdf A.R. Podgaets, W.J. Ockels: "Comparison of two mathematical models of the kite for Laddermill sail simulation". IAENG World Congress of Engineering Computer Science, San Francisco, CA, USA, 24-26 October 2007. pdf A.R. Podgaets, W.J. Ockels: "Flight Control of the High Altitude Wind Power System". 7th Conference on Sustainable Applications for Tropical Island States, Cape Canaveral, FL, USA, 3-6 June 2007. pdf J. Breukels, W.J. Ockels: "A multi-body dynamics approach to a cable simulation for kites". Asian Modelling and Simulation (AsiaMS2007), Beijing, China, 8-10 October 2007. pdf B. Lansdorp, W.J. Ockels: "Design and construction of the 4kW groundstation for the laddermill". 7th IASTED International Conference on Power and Energy Systems (EuroPES 2007), Palma de Mallorca, Spain, 29-31 August 2007. pdf P. Williams, B. Lansdorp, W.J. Ockels: "Optimal Trajectories for Tethered Kite Mounted on a Vertical Axis Generator". AIAA 2007-6706, AIAA Modelling and Simulation Technologies Conference and Exhibit, Hilton Head, SC, USA, 20-23 August 2007. pdf P. Williams, B. Lansdorp, W.J. Ockels: “Flexible Tethered Kite with Movable Attachment Points, Part II: State and Wind Estimation”. AIAA-2007-6629, AIAA Modelling and Simulation Technologies Conference and Exhibit, Hilton Head, SC, USA, 20-23 August 2007. pdf P. Williams, B. Lansdorp, W.J. Ockels: “Flexible Tethered Kite with Movable Attachment Points, Part I: Dynamics and Control”. AIAA-2007-6628, AIAA Modelling and Simulation Technologies Conference and Exhibit, Hilton Head, SC, USA, 20-23 August 2007. pdf P. Williams, B. Lansdorp, W.J. Ockels: “Towards Flight Testing of Remotely Controlled Surfkites for Wind Energy Generation”. AIAA-2007-6643, AIAA Modelling and Simulation Technologies Conference and Exhibit, Hilton Head, SC, USA, 20-23 August 2007. pdf J. Breukels, W.J. Ockels: "Numerical and Experimental Results of the Airflow in the Delft University KiteLab". AIAA 2007-3922, 25th AIAA Applied Aerodynamics Conference, Miami, FL, USA, 25-28 June 2007. pdf J. Breukels, W.J. Ockels: "Design of a large inflatable kiteplane". AIAA 2007-2246, 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, HI, USA, 23-26 April 2007. pdf J. Breuer, W.J. Ockels, R.H. Luchsinger: "An inflatable wing using the principle of Tensairity". AIAA 2007-2117, 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, HI, USA, 23-26 April 2007. pdf A.R. Podgaets, W.J. Ockels: "Stability of Optimal Solutions: Multi- and Single-Objective Approaches". 1st IEEE Symposium on Computational Intelligence in Multicriteria Decision Making (MCDM 2007), Honolulu, HI, USA, 1-5 April 2007. pdf J. Breukels, W.J. Ockels: “Past, present and future of kites and energy generation”. Power and Energy Systems Conference 2007, Clearwater, FL, USA, 3-5 January 2007. pdf 2006 A.R. Podgaets, W.J. Ockels: "Flight control and stability of a multiple kites tethered system".Renewable Energy 2006, Makuhari Messe, Chiba, Japan, 9-13 October 2006. pdf W.J. Ockels, R. Ruiterkamp, B. Lansdorp: "Ship propulsion by Kites combining energy production by Laddermill principle and direct kite propulsion". Kite Sailing Symposium, Center for Wooden Boats/South Lake Union, Seattle, WA, 28-30 September 2006. pdf B. Lansdorp, P. Williams: "The Laddermill - Innovative Wind Energy from High Altitudes in Holland and Australia". Global Windpower 2006, Adelaide, Australia, 18-21 September 2006. pdf A.R. Podgaets, W.J.Ockels: "Problem of Pareto-Optimal Control for a High Altitude Energy System". 9th World Renewable Energy Congress (WREC IX), Florence, Italy, 19-25 August 2006. pdf A.R. Podgaets, W.J.Ockels: "Three-dimensional simulation of a Laddermill". 3rd Asian Wind Power Conference (WindPowerAsia2006), Beijing, China, 28-30 June, 2006. pdf B. Lansdorp, W.J. Ockels: "Design and construction of a 2 kW Laddermill groundstation". Wind Power Asia 2006, Beijing, China, 28-30 June 2006. 2005 J. Breukels, W.J. Ockels: "Tethered kiteplane design for the Laddermill project". 4th World Wind Energy Conference & Renewable Energy Exhibition 2005, Melbourne, Australia, 2-5 November 2005. pdf B. Lansdorp, B. Remes, W.J. Ockels: "Design and testing of a remotely controlled surfkite for the Laddermill". 4th World Wind Energy Conference & Renewable Energy Exhibition 2005, Melbourne, Australia, 2-5 November 2005. pdf B. Lansdorp, W.J. Ockels: "Design of a 100 MW laddermill for wind energy generation from 5 km altitude", 7th World Congress on Recovery, Recycling and Re-Integration, Peking, China, 25-29 September 2005. pdf B. Lansdorp, W.J. Ockels: "Comparison of concepts for high-altitude wind energy generation with ground based generator". 2nd China International Renewable Energy Equipment & Technology Exhibition and Conference, Beijing, China, 25-27 May 2005. pdf 2004 W.J. Ockels, B. Lansdorp, J. Breukels, G. Spierenburg: "The Laddermill: work in progress". European Wind Energy Conference & Exhibition, London, UK, 22-25 November 2004. pdf 2001 W.J. Ockels: "Laddermill, a novel concept to exploit the energy in the airspace". Aircraft Design, Vol. 4, No. 2-3, pp. 81-97, 2001. doi: 10.1016/S1369-8869(01)00002-7
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