Presentation Title

Modeling for Stability and Control

Faculty Mentor

Dave Berger, Albion Bowers

Start Date

17-11-2018 8:00 AM

End Date

17-11-2018 8:15 AM

Location

C162

Session

Oral 1

Type of Presentation

Oral Talk

Subject Area

engineering_computer_science

Abstract

The goal of the Preliminary Research AerodyNamic Design to Land on Mars (PRANDTL-M) is to design and test a glider that can be used to collect atmospheric and ground mapping data on Mars. The aerodynamic design of this project focuses on correcting the lift distribution on the wing to match Ludwig Prandtl’s bell shaped curve lift distribution that was published in 1933. Prandtl’s theory veered away from the traditional elliptical lift distribution to correct for adverse yaw without a vertical tail. Previously, the majority of the aerodynamic calculations were conducted through Athena Vortex Lattice (AVL) which is a 2-dimensional aerodynamic analysis tool. Recently, there was a need to use a program called OpenVSP to create a three dimensional model of the glider so that the simulation of PRANDTL-M is more accurate. These two types of models are now used to verify their accuracy relative to the manufactured PRANDTL-M. A new feature to both computational models is the addition of the control surfaces. By adding the elevons to the models, trim can be calculated along a range of altitudes and dihedral angles which will facilitate a better understanding the control system and the optimization of the wing design of the PRANDTL-M.

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Nov 17th, 8:00 AM Nov 17th, 8:15 AM

Modeling for Stability and Control

C162

The goal of the Preliminary Research AerodyNamic Design to Land on Mars (PRANDTL-M) is to design and test a glider that can be used to collect atmospheric and ground mapping data on Mars. The aerodynamic design of this project focuses on correcting the lift distribution on the wing to match Ludwig Prandtl’s bell shaped curve lift distribution that was published in 1933. Prandtl’s theory veered away from the traditional elliptical lift distribution to correct for adverse yaw without a vertical tail. Previously, the majority of the aerodynamic calculations were conducted through Athena Vortex Lattice (AVL) which is a 2-dimensional aerodynamic analysis tool. Recently, there was a need to use a program called OpenVSP to create a three dimensional model of the glider so that the simulation of PRANDTL-M is more accurate. These two types of models are now used to verify their accuracy relative to the manufactured PRANDTL-M. A new feature to both computational models is the addition of the control surfaces. By adding the elevons to the models, trim can be calculated along a range of altitudes and dihedral angles which will facilitate a better understanding the control system and the optimization of the wing design of the PRANDTL-M.