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Mars Mission Vehicle Designs and Equipment Overview

Detailed review of vehicle designs for Mars mission, including Multi-Purpose Trailer and All Terrain Vehicles. Overview of necessary equipment and science schedule for Mars exploration. Features robotic exploration and communication technologies.

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Mars Mission Vehicle Designs and Equipment Overview

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  1. A&AE 450 – Senior Design Critical Design Review March 6, 2000 Christopher Burnside

  2. CDR Areas • Vehicles • Final Uses, Numbers, and Analysis • Vehicle Communications • ERV satellite communications • Science • What equipment we are taking and what are we doing when we get there • Robotic Exploration • What is the purpose of the balloons

  3. MH – Mars Hotrod • Design Constrains and Assumptions • Designed for higher speed surface mobility • Must be able to do emergency rescue up to 1000 Km • Stays around base all time except during emergencies • Provisions for safety (extra oxygen, fuel, water) • Methanol fuel -- 2.129 KW-hr/Kg (Energy Density) • Lift-off mass -- 475 Kg • Mars mass -- 2600 Kg (Water & Fuel Ballast) • Creates a low center of mass ~ .6 m off ground

  4. MH – Mars Hotrod • Analysis • C.G. = .6 m from ground • Gives a simple geometry problem to find the height needed to tip the vehicle over • 1.13 m height difference from either side of vehicle to tip over • If you do tip over you can empty the ballast, flip over and drive home. Don’t do that though because it wastes 2 tonnes of water • .5 m^3 of methanol to complete a 1000 Km drive

  5. Vehicle Design -- MPT • MPT (Multi-Purpose Trailer). • Designed to hold 5 tonnes of equipment, rovers, and Martian rocks. • Can be hitched to any of the vehicles. • Customizable – meaning the sides can be removed for easy storage, transport to Mars and large payloads. • Full complement of straps and tie-downs included in the tool compartments. • Simple 1 axial design and a crank hitch for stability. • Pivot for easy loading of the rovers and any large items which can be rolled onto the bed of the trailer.

  6. Vehicle Design -- MPT • 2.4x1.2x1 m (LxWxH) • .5 m ground clearance, but can be increased with a larger set of wheels if desired • Main structural elements are: • (2) 2.4x.028x.1 m • (2) 1.2x.028x.1 m • Structure Weight • Main structure = 60 Kg • Other weight ~ 60 Kg • Total weight ~120 Kg

  7. ATV – All Terrain Vehicle • Should have 2 vehicles going to Mars • 100 Km range • Methanol combustion • Short-range excursions C a n c e l l e d ! !

  8. Com and Navigation • Satellite (ERV) Communication bouncing off the ERV to Base and/or Earth. • Short-wave radio is good backup for limited bandwidth (>200 bps). A typical modem is 56000 bps. • Inertial and satellite navigation are primary, but either can function without the other. • Base has an emergency beacon which can be picked-up by the rover using a handheld directional antenna. (Simple pulse of high power short-wave radio).

  9. Communications

  10. Science Schedule • Long Range and Short Range Science goals • Rotate excursion teams about every 15 days • Local Science teams is analyzing data from previous long range sortie • Cataloging and book work of the excursion • Debriefings and Mission updates from Earth • Making recommendations for future sites and future crews from Earth • Hab maintenance and upkeep

  11. Science Schedule • 4 Main areas of Mars Research • Search for Water • Information from Long Range science, and balloons • Search for Life • Information from Excavation and Long Range science • Construction Methods • Building Bricks, mixing mortar, cement, Observation of Greenhouse structure for material fatigue, Equipment testing for future workers, site planning and management research • Life Sciences • How living on Mars and in deep space affects us • Psychological damage, treatment and/or prevention

  12. Science Equipment • List of equipment needed is way beyond what I can even guess. Hundreds of people are going to debate this issue until the first colonies are established. • Computers, Microscopes, electron microscopes, mass spectrometry equipment, plant biology equipment, drilling equipment, ovens, lab utensils (beakers, test tubes, hoses, clamps), sample isolation containers, chemicals, rock saw, X-ray diffraction machine, scales, Sample containers, etc. • Working Mass ~ 1500 Kg.

  13. Science Equipment • Tools for fixin’ things • Things are going to break so we need lots of tools and spare material to fix it • Hammers, saws, aluminum stock, sets of screw drivers, torches, rivet machine, pumps, screws, bolts, tape, grease, power tools

  14. Science • Experiments which can be performed • Chemical composition via mass spectrometry • Volatile gases contained in the samples (what is and was the Martian atmosphere made of.) • Search for microfossils with microscopes and electron microscopes • Soil processing for greenhouse plants • Meteorological sciences

  15. Robotic Exploration • Size • Gondola 1x1x1 m cube • Balloon 24 m • 27 Kg of Hydrogen per balloon • Total weight ~37 Kg • At this size we can take a lot of balloons • Want to take a dozen balloons and launch one every 45 days • Reasonable life span of 25 days

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