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Mars exploration rover terminal descent mission modeling and simulation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Raiszadeh, Behzad Queen, Eric M. |
| Copyright Year | 2004 |
| Description | Because of NASA's added reliance on simulation for successful interplanetary missions, the MER mission has developed a detailed EDL trajectory modeling and simulation. This paper summarizes how the MER EDL sequence of events are modeled, verification of the methods used, and the inputs. This simulation is built upon a multibody parachute trajectory simulation tool that has been developed in POST I1 that accurately simulates the trajectory of multiple vehicles in flight with interacting forces. In this model the parachute and the suspended bodies are treated as 6 Degree-of-Freedom (6 DOF) bodies. The terminal descent phase of the mission consists of several Entry, Descent, Landing (EDL) events, such as parachute deployment, heatshield separation, deployment of the lander from the backshell, deployment of the airbags, RAD firings, TIRS firings, etc. For an accurate, reliable simulation these events need to be modeled seamlessly and robustly so that the simulations will remain numerically stable during Monte-Carlo simulations. This paper also summarizes how the events have been modeled, the numerical issues, and modeling challenges. |
| File Size | 1204747 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040037788 |
| Archival Resource Key | ark:/13960/t93829z00 |
| Language | English |
| Publisher Date | 2004-02-01 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Science And Exploration Degrees of Freedom Stability Deployment Computerized Simulation Inertial Platforms Monte Carlo Method Atmospheric Entry Mars Exploration Space Missions Parachutes Mathematical Models Trajectory Analysis Mars Landing Descent Mars Roving Vehicles Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
