NASA Technical Reports Server (NTRS) 20160010274: Flight Analysis of an Autonomously Navigated Experimental Lander

7.3 MB·English

by  NASA Technical Reports Server (NTRS)

National Aeronautics and Space Administration
Flight
 Analysis
 of
 an
 Autonomously
 Navigated
 Experimental
 Lander

Jeffrey Chin, Justin Niehaus, Debra Goodenow
NASA Glenn Research Center

Storm Dunker, David Montague
Airborne Systems

1

www.nasa.gov
Flight Objectives

Increase
 the
 reusability
 of
 high
 altitude
 balloon
 gondolas
 after
 landing

Goals Objectives
Launch and land a gondola using
1.1
damage reduction method
Demonstrate a method to
1.0 reduce damage to the gondola
Collect and retrieve load data during
during landing
1.2 the operation of the damage reduction
method
Demonstrate a method to
Perform a controlled landing of a
2.0 increase recoverability of the 2.1
gondola to a specified target region
gondola after landing
2
NASAFly System
•  Developed
 by
 Airborne
 Systems

•  Guided
 Precision
 Aerial
 Delivery

3
New Challenges
•  Tex=le
 tolerance
 to
 radia=on
 exposure

•  Opera=ng
 systems
 at
 combined
 low
 densi=es
 and

temperatures

•  Safely,
 reliably,
 and
 cleanly
 separa=ng
 from
 the
 host

vehicle
 and
 ini=a=ng
 drogue
 infla=on

•  Stability
 during
 a
 transonic
 free-­‐fall

•  Use
 of
 GPS
 sensors
 near
 their
 al=tude
 and
 speed
 limits

•  Mission
 planning
 for
 balloon
 flights
 with
 highly
 variable

trajectories

4
ANGEL Payload
5
Balloon Flight System (BFS)
•  Monitors
 flight
 and
 landing

condi=ons

•  Sensors
 include:

–  GPS

–  3-­‐axis
 Accelerometers

–  3-­‐axis
 Gyro

–  3-­‐axis
 Magnetometer

–  Thermocouples

–  Barometers

–  Cameras

–  Current/voltage
 Monitoring

–  Telemetry

6
Separation System Design
ANGEL

7
Separation System – Section View
Payload

Housing
  Bearing

Bearings

8
Separation System – Section View
ShaV
 Retracted

  Drogue
 Cord

9
Flight Profile
0.04 129,689 -­‐29
Time
 at
 Float
 determined
 by

0.07 117,956 Float
  Host
 Vehicle

  -­‐39
Range
 Safety
 Officer
 (2
 hour

Separa=on
 from

0.10 110,396 Con=nues
 Mission
  -­‐39
max
 based
 on
 mission
 profile)

Host
 Vehicle

0.15 102,412 -­‐42
Drogue
 Parachute

D
0.29 87,326 -­‐51
r Deploys

0.04 78,775 o -­‐56
g
0.73 68,271 u -­‐62
1.00 61,528 e -­‐68

D
1.40 54,621 -­‐73
e
2.10 46,606 s -­‐61
c
2.90 40,569 -­‐48
e
e
 (
 psi
 ) 34..6300 e
 (
 ft
 ) 3351,,655468 Emxipne.
 cNtoed
 le
 Asssc
 tehnatn
 R
 7a5t0e

 Vof/
 m10in0
 0
 V/ nt
  Drogue
 Parachute
 Terminated
  -­‐-­‐4306 re
 (
 C
 )
r d u
ressu 55..1800 Altitu 2274,,977753 Paraglider
 Deployed
  -­‐-­‐2270 perat
P m
6.50 21,873 -­‐13 e
T
7.25 19,214 -­‐7
7.90 16,759 -­‐3
8.70 14,479 2
9.40 12,354 4
10.10 10,359 Pre-­‐launch
  8
10.80 8,477 11
Touchdown

11.60 6,701 12
11.90 5,851 13
Launch

12.30 5,024 14
Recovery

12.70 4,219 15
Ground 25
Mission
 Time
 (hrs) 1

 _ 2

 3 4 5 6 7 8 9 10 11 12
10