Mars Science Laboratory Heatshield Development, Implementation, and Lessons Learned
| Autor: | Eric M. Slimko, Christine E. Szalai, Pamela Hoffman |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Scientific instrument
Engineering business.industry Aerospace Engineering Mars exploration rover Mars Exploration Program Space and Planetary Science Atmospheric entry Space Shuttle thermal protection system Qualification testing Aeroshell Aerospace engineering business Material under test Simulation |
| Zdroj: | Journal of Spacecraft and Rockets. 51:1167-1173 |
| ISSN: | 1533-6794 0022-4650 |
| Popis: | The Mars Science Laboratory is a scientific mission that placed a 900 kg rover with 10 science instruments on the surface of Mars. A key component for landing on the surface of Mars is the aeroshell, which decelerates the entry vehicle to just 1% of its initial kinetic energy at atmospheric entry. The forward portion of the aeroshell is the heatshield, which must be designed to withstand the pressure, heating, and shear stresses it experiences during the atmospheric deceleration process. The original thermal protection system chosen for the heatshield, SLA-561V, was the material used on all previous Mars aeroshells but required new qualification testing. Unfortunately, the material failed testing in the more extreme environment three months after the aeroshell and project critical design reviews. A rapid decision was required to switch to another material under test by the Orion program called phenolic impregnated carbon ablator. With 18 months left to design, fabricate, test, and deliver this new heatshi... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|