nasa reduced gravity student flight program
DESCRIPTION
NASA Reduced Gravity Student Flight Program. Purdue University School of Electrical and Computer Engineering. Flight Team Members. Ryan Casteel --Junior / Electrical Engineering Jennifer Glassley --Junior / Electrical Engineering - PowerPoint PPT PresentationTRANSCRIPT
NASA Reduced Gravity Student NASA Reduced Gravity Student Flight ProgramFlight Program
Purdue University School of Electrical and Computer Engineering
Flight Team MembersFlight Team Members
Ryan Casteel --Junior / Electrical Engineering
Jennifer Glassley --Junior / Electrical Engineering
Joachim Deguara --Sophomore / Electrical Engineering
Ryan Traylor --Sophomore / Electrical Engineering
Adrian Lim --Sophomore / Mechanical Engineering
About the ProgramAbout the Program
provides a unique academic experience for undergraduate students to successfully propose, design, fabricate, fly and assess a reduced-gravity experiment of their choice over the course of eight months.
includes scientific scholarship, hands-on test operations and education/public outreach activities.
Began in 1997
48 teams selected by May 7th for August flights from Johnson Space Center
Spatial Disorientation and Spatial Disorientation and Situational AwarenessSituational Awareness
the incorrect perception of attitude, altitude, or motion of one’s own body, aircraft, or spacecraft
WHY????WHY????
major problem facing military aviators and NASA astronauts
costs DoD $300 million per year in lost aircraft U.S. military loses around 20 aircraft and 15 officers
per year as a result of spatial disorientation mishaps typical SD mishap occurs when the visual system is
compromised by temporary distractions, increased workload, reduced visibility, and most commonly, g-
lock
SolutionSolution
Use a tactile feedback system to enhance spatial awareness
the sense of touch can be engaged in a natural and intuitive manner by using sensory saltation
utilizes the sense of touch to replace vision or audition (i.e., sensory substitution)
DefinitionsDefinitions
The human tactual sense is generally regarded as made up of two subsystems: the tactile and kinesthetic senses.
Tactile (or cutaneous) sense refers to the awareness of stimulation to the body surfaces
kinesthetic sense refers to the awareness of limb positions, movements and muscle tensions.
The term haptics is often used to refer to manipulation as well as perception through the tactual sense
The PhenomenonThe Phenomenon
DefinitionDefinition
saltation is Latin for “jumping”
does not depend on the user’s knowledge of either spatial nor temporal parameters
the user does not have to look for it — s/he simply feels it
The Cutaneous RabbitThe Cutaneous Rabbit
Equipment DescriptionEquipment Description
Control Box(Keypad Input)
Signal Generator(Microcontroller)
VibratorDriver Circuit
TactileDisplay
The Black BoxThe Black Box
More details..More details..
ApplicationsApplications
provide better orientation awareness for astronauts during EVAs
Silent communication
for military units on the ground
HALO JumpingHALO Jumping
On-Ground PreparationOn-Ground Preparation
KC135-A “Vomit Comet”KC135-A “Vomit Comet”
Flying Really Fast.Flying Really Fast.
During the FlightDuring the Flight
2-3 hour flights
30 to 50 parabolic maneuvers
25 seconds of zero-gravity on each maneuver
1.8-g entry and exit conditions in each reduced-g maneuver.
Fun in the Air!!Fun in the Air!!
THE FLIGHTTHE FLIGHT
The Backpack– Sensors– Controller
The Experiment– Signals– Orientations– Gravity
The Team– Test Subject– Experimenter
Your ExperimentsYour Experiments
Examples
Experiment packet
Questions
ScheduleSchedule
May 7th--Selection Day
late May-- we’ll get your materials
August Flights
Follow-up presentation in the fall
Question-Answer SessionQuestion-Answer Session