ON THE DEVELOPMENT OF A SIX-DEGREE-OF-FREEDOM MODEL OF A LOW- ASPECT-RATIO PARAFOIL DELIVERY SYSTEM

Numerous papers in the area of parafoil system design have been published over the past 50 years. They cover the following major topics: The future of the Army’s air delivery mission includes the use of precision-guided autonomous airdrop methods to resupply troops in the field. High-glide systems, ram-air parafoil-based, allow for a safe standoff delivery as well as wind penetration. This paper addresses the development of a six-degree-offreedom model of a low-aspect ratio controllable parafoil-based delivery system. The model is equally suitable for modeling and simulation and for the design of guidance, navigation and control (GNC) algorithms. This gliding parafoil model was developed in the MATLAB/Simulink ® environment. Apparent mass and inertia effects are included in the model. Initial test cases have been run to check model fidelity. ƒ Advanced computational methods for the 3D flow simulation around the parafoil canopy; 1-3

[1]  Oleg A. Yakimenko,et al.  SIMULINK IMPLEMENTATION OF THE 6DOF MODEL OF CONTROLLED CIRCULAR PARACHUTE , 2002 .

[2]  T. Goodrick.  Theoretical study of the longitudinal stability of high-performance gliding airdrop systems , 1975 .

[3]  Roman B. Statnikov,et al.  Multicriteria Design: Optimization and Identification , 1999 .

[4]  Narayanan Menon Komerath.  Low speed aerodynamics of the X-38 CRV : summary of research NAG9-927,5/97-4/98 , 1998 .

[5]  Glen Brown.  Parafoil steady turn response to control input , 1993 .

[6]  Robert Hooke,et al.  `` Direct Search'' Solution of Numerical and Statistical Problems , 1961, JACM.

[7]  C. Cerimele,et al.  Lateral-directional aerodynamics from a large scale parafoil test program , 1999 .

[8]  Gordon Strickert,et al.  Analysis of the Relative Motion in a Parafoil-Load-System , 2001 .

[9]  R. V. Jategaonkar,et al.  Evolution of flight vehicle system identification , 1996 .

[10]  Tayfun E. Tezduyar,et al.  ADVANCED COMPUTATIONAL METHODS FOR 3D SIMULATION OF PARAFOILS , 1999 .

[11]  Ricardo A. Machin.  DESIGN AND TESTING OF THE X-38 SPACECRAFT PRIMARY PARAFOIL* , 2000 .

[12]  John D. Nicolaides.  Parafoil Wind Tunnel Tests , 1971 .

[13]  Narayanan Komerath,et al.  Wind Tunnel Measurements of Parafoil Geometry and Aerodynamics , 1998 .

[14]  T. Goodrick,et al.  Estimation of wind effect on gliding parachute cargo systems using computer simulation , 1970 .

[15]  Hisato Kondoh,et al.  21 – Development of the Eye , 2002 .

[16]  C. Iacomini,et al.  Investigation of large scale parafoil rigging angles - Analytical and drop test results , 1999 .

[17]  Thomas Jann,et al.  Determination of the relative motion between parafoil canopy and load using advanced video-image processing techniques , 1999 .

[18]  Thomas Bennett,et al.  Development of the NASA X-38 parafoil landing system , 1999 .

[19]  Tayfun E. Tezduyar,et al.  Parallel finite element computation of the dynamics of large ram air parachutes , 1999 .

[20]  T. Barrows.  Apparent Mass of Parafoils with Spanwise Camber , 2001 .

[21]  Glen Brown,et al.  Apparent mass effects on parafoil dynamics , 1993 .

[22]  Nathan J. Slegers,et al.  Dynamic Modeling, Control Aspects and Model Predictive Control of a Parafoil and Payload System , 2004 .

[23]  Kenneth W. Sego.  AIAA 2001-2073 DEVELOPMENT OF A HIGH GLIDE, AUTONOMOUS AERIAL DELIVERY SYSTEM - 'PEGASUS 500 (APADS)' , 2001 .

[24]  T. Chatzikonstantinou.  Recent advances in the numerical analysis of ram air wings - The three dimensional simulation code 'PARA3D' , 1993 .

[25]  K.-F. Doherr,et al.  Advances in the application of parameter identification analysis techniques to parachute aerodynamic test data , 1984 .

[26]  T. Goodrick.  Comparison of simulation and experimental data for a gliding parachute in dynamic flight , 1981 .

[27]  C. Cerimele,et al.  Longitudinal aerodynamics from a large scale parafoil test program , 1999 .

[28]  C. Madsen,et al.  Updated flight performance and aerodynamics from a large scale parafoil test program , 2000 .

[29]  D. J. Cockrell,et al.  Preliminary Consideration of Parameter Identification Analysis from Parachute Aerodynamic Flight Test Data , 1981 .

[30]  Jenny M. Stein,et al.  An overview of the X-38 prototype crew return vehicle development and test program , 1999 .