Sonntag, Mai 29, 2011

How Big is Your Team |GLX-PRIZE

The team at Tohoku University are making steady progress on the construction
of the rover prototype. The picture below shows the suspension integrated to the
body frame.



The wheels are now being made from acyclic polymer tube and will be attached next week.

Probably due to the Sendai Earthquake, there have been some serious delays with the
manufacturer of the new camera and the laser range finder, but the delivery of those
components is expected next month.

First demonstrations of the rover prototype are scheduled for July, with some significant
software progress by September. The rover will be ready to perform a mock-GLXP mission
on Earth by the end of this year.

Work will then continue through 2012 on the rest of the software, navigation strategies,
verification of the wheel configuration and installation of all electronic systems.

Sonntag, Mai 15, 2011

Master Plan |Team SpaceMETA

SpaceMETA LUMEM - Master Plan of the Lunar Micro Explore Mission: "

The Mission

GENERAL VIEW OF THE MISSION


MISSION NAME: LUMEM – Lunar Micro Explore Mission


Revision 1.0


Intro


LUMEM , The Lunar Micro Explorer Mission , is a venture challenge designated to develop rupture innovation ideas on how to accomplish the main Challenges and Objective motivated by the Google Lunar XPrize , GLXP.


The vision of SPACEMETA about the LUMEM ( GLXP Challenge ), is divided is organized in key phases, where some of that phases are financial/engineering/administration challenges and others innovation challenges.


SpaceMETA Team has concentrated their initial efforts in innovation challenges motivations and the main aspecto of the mission is organized as 3 Basica Pillars and 5 aproachs with new-new-things specially designed for the LUMEM event. The basic pillars are: Launching , Injecting and Landing, and the 5 new-new-things are: INFIMO – Infinit Motion, COSMOA – Collaborative Space Modules Archicture, SLICOM – Sun Light Communication System, UTRAS – Universsal Trajectory System and BIA – Build it After


In a complementary way, SPACEMETA will use for the LUMEM Mission conventional e state-of-the-art technologies available when it will be justified by the Missions premisses , like security and environmental-friendly alternatives available.


As we will see during the detailment in this document, SPACEMETA new-new-things will consider ruptive visions like consider the DARK SIDE OF THE MOON ( in fact, the dynamically border zone ), a potential region to be used.


We would like to introduce in the following sections some one our basic ideas on how to accomplish the GLXP Challenge , and we hope to have better opportunities to better detail it furthermore.


THE NEW NEW THING


The SPACEMETA THING ( Codename SOLITAIRE ). A Innovative with very simple technology design-thinked to be reliable for surviver on the space with very low energy consumption.


INFIMO


Development of a new way to produce dynamic motion systems capable of long movements without conventional fuel restrictions on the arrival surface called INFIMO that means Infinity Motion. INFIMO is a vision that will inspire future projectists to try to work with very limited resources in space, AND, obtain the maximum of the results in movement in Space. INFIMO premises consider that we don’t need to have only one way to develop movment on the destination, but several mechanisms to long movement, short movement, and emergency movements. INFIMO is actually executing very well on the Earth conditions and starting outer-space environment simulation tests. The first product generated from the INFIMO Design concept is NITILEGS ( Coil-Legs NiTiNOL Based, described later on Mission Summary ).


SOLITAIRE


SOLITAIRE is a technology related with the same thermal gradient usage used on INFIMO apparatus for movement, and is also a concept to be applied for movement. Basically it is constituted by a inflatable structure when the internal gas combinations expand during the high temperature of the direct light radiation, it will promote CHAOTIC movements for the CRAFT, once the structure expansion will be constructed to expand randomically. The resultant movement will not came from flotation ( of course it need some atmosphere ) , but from strucutral deformations promoted by the expansion os the cover that will looks like a blob, melting and ummestilng on the surface. For more long movements, SOLITAIRE will have a complementary more strong movement system will be used also, based on memory shaped metal more described later.


This illustration shows The SPACEMETA Solitaire Module in a illustration near Apollo 12 Craft. You can observe a metallic semi-transparent blue sphere surface, flooded with SOLAR CELLs , and some pipes edge around it. This pipes edges are pipes that will hold the NiTiNOL legs and activate them on appropriate time promoting movement by impulse, and sensing the surface resonance on the impact


This is a Ilustration of NITILEGS by SPACEMETA, wich is a internal pipe with a compressed NiTiNOL Coil wich objective is to release locked mechanical energy and recover it again from the memory shaped metal design coil, to work on the gradient temperature on the Moon surface and releasing potencial-to-kinetic energy stored from earth or other events like impact on Moon surface. This coils are also used as probe to sense the terrain resistance, capacitance and density, helping to create a map of the touchable surface.


BIA


Development of initial researchs about BIA, i.e. Build It After. BIA Concept is related on how to build new objects usable by the mission after the beginning of the Jorney. The objective of this Theme, is to setup-mind for the future generations to think in how to construct space systems that will learn and build objects required to deal with real exo-world situations that was not provided before, or build some resource that will use much space after done.


COSMOA


Development of The COSMOA-Colaborative Space Modules Architecture. This architecture will motivate Teams to think in an Colaborative Modular way, where the concept of success in SPACE means not only accomplish Primary Mission Target, but also, leave building blocks for future missions.


SLICOM


Development of new way of communication without using conventional methods of radio-wave propagation from Space to Earth called SLICOM ( Sun Light Communication ). The SLICOM will use a very old technique inspiread by the local Indians communications and is known by Smoke Signals. Instead of generate conventional wave signals, we will modulate the SUN Light and reflect the modulated light directly to Earth, like it occurs day-by-day. In a very simple way, we can think like a smoke signal communication system, or a Morse-code directly into the powerfull channel of sun-light.


UTRAS


Development of a new way of trajectory system compensator , without use of fuel or jet systems, called UTRAS , Universsal Trajectory System, based on a innovation called MMM-Momentum-Mass-Movement Drive Systems. UTRAS is extremely theoretical designed systems, and will better described later on this document. Basically the theoretical concept of it is related to Conservation of Angular Momentum, and its applied to liquid metals onboard the carrier craft nd should be used when conventional fuel will be an restrict issue but electrical energy is available.


INFLATABLE


Inflatable is a conceptual vision of the redesign process for big structures like long diameters antennas, that should be build in a compact way on the Earth, and it will be inflatable by several process like gaze expansion of crystal growing on the destination, reducing the complex factor involved during the transportation and landing.

White Label Space |GLX-PRIZE

This video taken during the Rio Tinto field trials shows some of the
difficulties of doing outdoor testing and includes interviews with the
two team members who were responsible for the White Label Space
activities, Carmen Felix and Andrea Gini.




Donnerstag, Mai 12, 2011

Rover Development Update #02

Rover Development Update #02: "
Power & Power Management




The power budget for the Rover is expected to be < 50W:


  • Primary DC motors - 4 numbers, 5W each

  • Secondary DC motors - 2 numbers, 3W each

  • Other mechanical control systems < 5W

  • Electronics and "local" Comm infra < 5W

  • Spare power ~ 12W

The entire power assembly will work at 6V DC.

Solar photovoltaic power is the primary power generation system for rover operations and re-charging secondary power systems - lithium ion batteries. A MPPT charge controller will be incorporated to maximize battery charging. More on batteries in a separate Blog post.

Assumed solar influx on the moon is ~ 1400W/sq.m. we are making provision for 100W peak power generation, it is further assumed that the 'landing' will happen closer to the 'evening', therefore average influx is expected to be lower - expected area of solar panel @25% efficiency ~ 0.4 sq.m., these panels will also work as 'solar shields' for the electronic box and other moving parts.

Other notes

Procurement - ITAR and related paperwork will probably set us back several months, therefore procurement is local, incidentally its cheaper here and we get to 'work' with the testing team when they are putting the equipment through the 'griller' - I guess works better for us this way!

Prototyping - Ver0.1, will use off-the-shelf components, non-space grade material - we are looking for a dev name for the rover, ideas anyone?

-- Indranil Chakraborty

Founding Member & Mission Crew




Team Indus - Development Log #03: 12th May 2011
"

Mittwoch, Mai 11, 2011

Barcelona Moon Team joins NASA meeting for preservation of American historical hardware on the Moon

Last Thursday, Barcelona Moon Team together with other dozen teams joined NASA Ames by telecon, to learn about NASA’s recommendations on the preservations of the lunar historical sites, including the Apollo sites. In a long but very interesting day, NASA presented the legal frame, the pictures of the existing hardware left in the lunar surface, the effects of the rocket engines in a too close existing hardware (based on the real experience of Apollo 12 which landed within walking distance of the Surveyor 3), and some actual approach at the Planetary Protection issues, which the Barcelona Moon Team also has in its objectives.

A set of reccomendations on the distances and trajectories for the landings, as well as the roaming procedures around the American hardware were and will be discussed in the next months. Although the main interest obviously remains to the Apollo missions hardware left on the Moon, the Barcelona Moon Team would like to see a similar initiative from the Russian Federation on the Soviet hardware on the Moon.





Album: NASA MEETING



Final rover design - part 3

Motor with wheel hub:


Motor with wheel hub and 16 inch diameter wheel legs:



The following video demonstrates the maneuverability of wheel legs:

Organization, Vision & Objectives of our team

TEAM

Interesting Space Terms

While searching the web for information - getting side tracked is part of the adventure.

Here are a few interesting space terms.

Space Archaeology:
In archaeology, space archaeology refers to the study of various human-made items found in space, their interpretation as clues to the adventures mankind has experienced in space, and their preservation as cultural heritage.

Graveyard Orbit:
A graveyard orbit, also called a supersynchronous orbit, junk orbit or disposal orbit,is an orbit significantly above synchronous orbit, where spacecraft are intentionally placed at the end of their operational life.


Spacecraft Cemetery:
The so-called Spacecraft Cemetery is an area in the southern Pacific Ocean 3900 km southeast of Wellington, New Zealand, where spacecraft, notably the defunct Mir space station and waste-filled Progress cargo ships are and have been routinely deposited. It has been chosen for its remoteness, as not to endanger or harm human life.

More about the MSS-2 flight

Chris King successfully downloaded the data from the flight computer,
Chute Controller and Featherweight Parrot. Detailed analysis of flight
data will be forthcoming in the near future.
- Ken Manatt, who led the tracking effort, provided the following post-flight report:

http://sugarshot.org/downloads/km_tracking_report.pdf

Photos of the launch event:

Rick Maschek 'painting' ignition primer on sugar grains

http://sugarshot.org/downloads/dsc05785.jpg

Paul Avery & John Newman discussing possible DoubleSShot launch tower design

http://sugarshot.org/downloads/dsc05802.jpg

Bill Colburn with MiniSShot-2

http://sugarshot.org/downloads/dsc05821.jpg

JP Montello applies silicone grease to Mid-bulkhead while Paul checks off that step

http://sugarshot.org/downloads/dsc05823.jpg

JP Montello installs screws for Mid-bulkhead

http://sugarshot.org/downloads/dsc05826.jpg

Paul and JP measure out copper thermite ingredients while JP senior looks on

http://sugarshot.org/downloads/dsc05831.jpg

MiniSShot-2 awaits forward avionics as Garvey Spacecraft people get safety briefing
on the LOX Methane static test in background

http://sugarshot.org/downloads/dsc05833.jpg

JP readies thermite igniter for test

http://sugarshot.org/downloads/dsc05842.jpg

Video of 5 gram thermite igniter test. For MSS, 10 grams were used for each motor chamber

http://www.youtube.com/watch?v=w-hGywbs1S0

Ed Holyoke and Chris King ready forward avionics for airframe attachment

http://sugarshot.org/downloads/dsc05880.jpg

Chris and Ed work to finish assembly completion

http://sugarshot.org/downloads/dsc05885.jpg

MiniSShot after Rick pulls the safety shunt...now waiting liftoff

http://sugarshot.org/downloads/dsc05886.jpg

Rick and Paul recover detached forward avionics after tracking teams report
beacon position near launch site

http://sugarshot.org/downloads/dsc05902.jpg

(photos & video courtesy Rick Maschek)

The following are photos of the fractured section of the Recovery Bay:

http://sugarshot.org/downloads/dsc05950.jpg

http://sugarshot.org/downloads/dsc05953.jpg

http://sugarshot.org/downloads/dsc05954.jpg

http://sugarshot.org/downloads/dsc05955.jpg

http://sugarshot.org/downloads/dsc05957.jpg

http://sugarshot.org/downloads/dsc05958.jpg

(photos courtesy Rick Maschek)

Additional photos of launch event:

JP Montello applies silicone grease to Mid-bulkhead

http://sugarshot.org/downloads/dsc_5477.jpg

Business end of the MiniSShot-2 rocket motor

http://sugarshot.org/downloads/dsc_5478.jpg

Liftoff of MiniSShot-2

http://sugarshot.org/downloads/dsc_5603.jpg

MiniSShot-2 clears the launch tower

http://sugarshot.org/downloads/dsc_5604.jpg

http://sugarshot.org/downloads/dsc_5604_crop.jpg

(photos courtesy Bruce Murdock)

And yet more photos:

Rick & Paul carrying the Booster section from assembly building to the launch tower

http://sugarshot.org/downloads/picture120.jpg

Loading the Booster section into the launch tower

http://sugarshot.org/downloads/picture126.jpg

http://sugarshot.org/downloads/picture133.jpg

Preparing to attach forward section to the Booster

http://sugarshot.org/downloads/picture136.jpg

http://sugarshot.org/downloads/picture137.jpg

Forward Avionics package

http://sugarshot.org/downloads/picture156.jpg

Rick preparing Aft Avionics while Paul follows procedure with checklist

http://sugarshot.org/downloads/picture164.jpg

Chris & Rick prepping Forward Avionics

http://sugarshot.org/downloads/picture189.jpg

Closeup of Forward Avionics package:

http://sugarshot.org/downloads/picture195.jpg

(photos courtesy Ed Holyoke)

Video of MiniSShot-2 flight

http://www.youtube.com/watch?v=Y1D2tBP4QJc

(video courtesy Dave Griffith)

At this point in time, only very preliminary analysis of flight data has been performed.
Adrian Adamson has so far taken a cursory look at the Parrot data and writes:

'The axial accel doesn't show any sign of trouble, but the lateral accel is definitely ramping
up before the event. It's as if there were a

sudden onset of aerodynamic instability leading to excessive angle of attack and the airframe
crumpled and burst. There was one event during the coast between burns that shows up in
both accel axes about 16 seconds into the flight.'

Hans Olaf Toft also has taken a quick look, so far, at the Main Computer/Chute Controller data.
Of particular interest is the motor

chamber pressure data. Hans provided the following graph of the 2nd phase burn:

http://sugarshot.org/downloads/chamberpressure.gif

The burn can be seen to be nominal right up to the 20.7 second mark, when the curve
suddenly truncates followed by erratic 'noise'. This is likely indicative of the point when
the sensor leads broke as the Recovery Bay fractured, separating the avionics from the
Booster.

A huge thank-you goes out to all those who participated in the MSS-2 launch event,
in particular, the ground/launch crew and trackers. A job well done!

MSS-2 flight video #1

Donnerstag, Februar 03, 2011

Landing the Lunar X PRIZE |Seminar

Red Whittaker delivered 'Landing the Lunar X PRIZE'
as part of the Field Robotics Center Seminar Series on January 25th.
This seminar discusses competing in the Google Lunar X PRIZE and
the many technical challenges that comes with it.



quell:astrobotic

Donnerstag, Dezember 02, 2010

Google Lunar X PRIZE |Roundup #38


The Google Lunar X PRIZE is a $30 million competition challenging private space enterprises to land a rover on the Moon. Each week, I round up all the latest developments as the teams rocket forwards and upwards…

This site is Apture-enabled, so highlight any phrase to find out more about it :)

Now that we’ve all recovered from the feasting and shopping, it’s time for a Thanksgiving-sized GLXP roundup.
So, here goes with three weeks (Nov 8th-29th) of goodness, including a flurry of activity from SELENE and a number of new partnerships all around:

Donnerstag, Oktober 21, 2010

NASA awards Moon mining contract to |Astrobotic

NASA has selected Astrobotic Technology and Carnegie Mellon University to develop a prototype robot for mining water and methane ices at the Moon’s poles. These volatiles can refuel astronauts’ spacecraft for their return trip to Earth, halving the cost of human Moon expeditions.

The award will fund a two-year effort to build a robot able to dig into frozen lunar dirt despite the Moon’s one-sixth gravity, which leaves excavators much less traction, needed to push digging implements into the ground, than on Earth.

The robot employs an innovative bucket-wheel excavator mounted transverse to the direction of travel; pushback from digging would mainly push lightly sideways on the wheels. Standard blade or scraper approaches push the robot back along the wheels’ direction of travel working against already limited traction. The small digging edges of a bucket wheel also concentrate digging force narrowly compared to machines with wide blades or scrapers.

“Shipping heavy machines to the Moon is very costly, so the challenge we solve is excavating with a low-mass robot in the range of 70 to 300 pounds,” said Chris Skonieczny, leader of the Astrobotic project. “In addition to the transverse bucket wheel, our design uses composite materials for light weight and high-speed driving for greater productivity.”

The $599,900 contract is a Phase II award in NASA’s Small Business Innovation Research program, following up a successful Phase I concept study. Astrobotic intends a commercial expedition to one of the Moon’s poles with the excavator when the concept is ready.



quelle: googlelunarxprize.org

Sonntag, September 26, 2010

Way to win the GLXP |SELENE


Landing the craft on the surface of the Moon:



The secondary vehicle carried by the craft is a composite propelled rocket.
The only payload the rocket carries is a wireless ignition system and a cartridge
with flash powder. The rocket is spin stabilized by a rapidly rotating launch pad
.



The alignment device for the rocket is also used to adjust the up/downlink antenna:



The rocket lifts off and then moves a distance of 500m along the surface of the
Moon. As the secondary vehicle must have the theoretical capability to move
five hundred (500) meters in a straight line displacement, a rocket is probably
the only vehicle which is able to move 500m approximately in a straight line
displacement on the Moon. Every ground vehicle moves more or less in a zigzag
course due to its ongoing and continuous course corrections. Attempting to win
the Range, Survival or Water Detection Bonus Prize is impractical. The
development and transportation costs alone far exceed the prize money.
The scientific benefit would be questionable because lunar excursions in excess
of 5km happened back in the 1970s as part of the Lunokhod program which
survived lunar days and nights, while evidence of water on the Moon was
discovered in 2009.




The rocket hits the ground and the ignited flash powder indicates the landing site:



The camera, mounted on the craft, verifies the journey’s length. The camera
makes also photographs to yield a full 360º view of the landing site, which
include the horizon and a vertical dimension of no less than 60º. The camera
can also capture a sufficient number of images and videos to meet the
requirements for imaging of the Logo Cluster. To capture the XPF Payload,
the payload specifications must be defined initially by their overall effect on the
whole construction of the craft.




The only Bonus Prize worth pursuing would be the Apollo Heritage site
-- the Heritage Bonus Prize -- but the risk is too high that a miscalculated
crash into this particular heritage site and others might occur, destroying
them and jeopardizing the mission in question in the process.





quelle:GLPX

Donnerstag, September 23, 2010

Lunar Rover's Systems |Astrobotic

Lunar Rover's Systems:
Extended duration lunar missions require survival of lunar night,
which approaches temperatures of -180C. The utility of night survival
means another 14 earth days of mission. Critical to operation upon
revival is the battery. Common batteries use an aqueous electrolyte
which ruptures cell chemistry when subjected to cryogenic temperatures.
Development of a lithium-iron-phosphate battery pack enables revival
after cryogenic freeze.

The prototype in this video shows a micro-controller to initiate wakeup
of a flight computer upon temperature trigger, which is sensed by the
micro-controller. This function is critical for boot-up of systems that endure
lunar night. This system is more fully described in the video.

Samstag, September 04, 2010

Rover Prototype Design |WhiteLabelSpace

A new student has joined the White Label Space team at the
Tohoku University Space Robotics Lab
in Japan.
Jérémie Gaboriaud will be in charge of the CAD design of a
prototype of the rover to be used in our mission for the
Google Lunar X PRIZE (GLXP
).

The starting point for Jérémie's work will be the design
configuration used for the recently completed project by
Xavier Laurand
on the rover's thermal design and analysis.
This rover is shown in the picture below.

From this starting point Jérémie will construct additional CAD
models to examine different design options for the rover's various
subsystems and equipment.


The rover prototype will initially be developed solely for operation
on Earth. Its HD camera system, star tracker, and solar panels will
provide new research opportunities for the Space Robotics Lab.
Once the new test-bed is implemented, each subsystem will be
assessed for space-flight readiness and suitability for operation in a
lunar environment

Jérémie Gaboriaud is a French student currently studying mechanical
engineering as part of a degree through apprenticeship at ICAM
(Institut Catholique des Arts et Metiers) in Toulouse, France.
His course requires him to undertake a half year internship in a foreign
university and for this he chose to work at Tohoku Univeristy under the
supervision of professor Kazuya Yoshida on the GLXP project.

quelle: Google Lunar X-Prize