SHEFEX mission 2013 - German Aerospace Center · 2014. 1. 14. · > AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012 Andoya, Norwegen June 22nd, 2012, 21.19 MESZ • Chart 2

SHEFEX II

A Mission report

SHEFEX Team

www.DLR.de • Chart 1 > AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012

> AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012

Andoya, NorwegenJune 22nd, 2012, 21.19 MESZ

www.DLR.de • Chart 2 > AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012

> AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012www.DLR.de • Chart 3 > Vortrag > Autor • Dokumentname > Datum

Partners of SHEFEX II


SHEFEX I versus SHEFEX II

SH I

SH II

Re-entry velocity rises from 1.4 km/s to 2.8 km/s

Experiment duration rises from 15 s to 50 s

Acitive flight control during entry phase (100-20 km)

Facettet, symmetric payload tip

Measurement also during ascent phase

Extension of instrumentation and experiments

> AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012www.DLR.de • Chart 5

0 100 200 300 400 500 600 700 800 900 1000

100

200

300Trj 800Trj 900Reentry Angle

Ground Range over Earth curvature [km]

Alti

tude

of v

ehic

le a

bove

sea

leve

l [km

]

100

20

662 783

SHEFEX 2 Expected flight path

Apogee Trj800 (Baseline) h≈194km

Ground range GR≈800km

Reentry angle δ≈35°

Ground range Experiment Phase GRexp≈120km

-Experiment Phase

- δ ≈ 35°


Experiments on SHEFEX II

9 TPS Systems (ASTRIUM, MT-A, AFRL, DLR)

1 actively cooled segment4 „Hot“ Antennas

Hybrid navigation system

Instrumentation, TC, Heatflux, pressure,

Pyrometer, Compare (IRS)

New ablative fin structure

Aerodynamic control

Hybrid CMC/Metallic Canards

Windtunnel testing


SHEFEX II: Generation of aerodynamic data base


-Pressure sensors

-Pyrometer

-COMPARE Spectrometer

-Heat flux sensors

-Electronic boxes for

-sensor data processing

-Pressure sensors

-FADS

-Pressure sensors

-Heat flux sensors-CMC-Tip

-CMC-TPS

-CMC-TPS

-Metallic-TPS

-Alu substructurePayload Instrumentation


SHEFEX Program Team Weihs 9

Oxide basd CMC Elements for hot antennas

Material and TPS Experiments

Actively cooled TPS Element

CMC Serial production


Instrumentation

Temperature distribution of the vehicle using

radiation adiabatic boundary condition

turbulent boundary layer, Alt 20 km, Ma 8, α

= 2.5°

-Surface thermocouples


Flush air data system (FADS) Experiment

Monolithic CMC nose

insert with integral

pressure ports

> Measurment of static pressure at 8 locations

> Development of algorithm for determination of gas flow orientation

> Calibration within hypersonic wind tunnel facility

> Comparison to navigation platform results


SHEFEX II: Aerodynamic Flight control


Hardware: Hybrid Navigation System (Experiment)

D-Box

CCCCanard Control

Computer

Star Camera

Command,Data (1HZ)

RS422

Data In terfac e

Power

GPSIMU GPS Antenna

Physical Interface

Mec

hani

cal a

nd T

herm

al In

terfa

ce

Um

bilic

al C

ord

Navigation Computer

(NC)

STComputer

Command,Data (1 Hz)

GP

S Si

gnal

Trigger (1 Hz)

Command,Data (500 Hz)

Command, Data (2 Hz), PPS

GPS Signal

Mec

hani

cal a

nd T

herm

al In

terfa

ce

Mec

hani

cal a

nd T

herm

al In

terfa

ce

Res

et

Me c

hani

cal a

n d T

herm

al In

terfa

c e

Mechanical and T herm

al I nterface

Trigger(500 Hz)

Signal Line

Firewire

Tele

met

ry /

Tele

com

man

d

Rea

dy fo

r Sta

r Tra

cker

Lift

Off

DC/DC Iso.

Um

bilic

al C

ord

Vehicle

PDU

Power

-GPS Receiver

-Camera Baffle and -Shutter Release

-GPS Receiver

-Power Distribution

-Camera Baffle and -Shutter Release


SHEFEX: Secondary structural Experiments

Ablative stabilizer fins

CFRP Fairing with integrated ablative TPS

Hybrid TI/CMC Canards


SHEFEX II on Tour

www.DLR.de • Chart 15 > Vortrag > Autor • Dokumentname > Datum


payload assembly hall

rocket assembly hall

launch padblock house

control center

Andoya Rocket Range, Norway


SHEFEX II Trajectory and Impact Aeras



Payload integration



Motor preparation


1. Stage 2. Stage


Preparation of the launch rail



After- 5 hard Years of Development-16 Million Euros -20 `24 Hour`days at the range-uncountable coffees, Pizza, bavarian and

swabian Beer

SHEFEX II is ready for flight


Final Count Down


System Control

Experiment Control

Launch Control


3 , 2, 1, Ignition …



Telemetry and Radar Tracking, 600 exciting Seconds



Shefex II flown trajectory, GPS data


AKTIV Panel


-Results: AKTiV

Tcooled

Tuncooled

110k

m a

ltitu

de„G

as o

n“

first

stag

ese

para

tion

seco

ndst

age

igni

tion

30km

- Kühleffekt beim Wiedereintritt deutlich sichtbar- Kühleffizienz =(1-Tc/Tuc) bis zu ~50%

in der Oberflächentemperatur


Nose Tip Temperatures

www.DLR.de • Chart 29


First results:

SHEFEX II Mission acomblished


- Trajectory flown as planned (deviation


Thanks to the Team !!!


Vortrag > Autor > Dokumentname > Datum

Danke fürs Zuhören und die Geduld !

Documents

SHEFEX mission 2013 - German Aerospace Center · 2014. 1. 14. · > AIAA 2012 Tours > Weihs • Dokumentname > 26.9.2012 Andoya, Norwegen June 22nd, 2012, 21.19 MESZ • Chart 2