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Igor Rybalchenko

Deputy Vice-Rector

National Aerospace University National Aerospace University ““KhAIKhAI””

KharkivKharkiv, UKRAINE, UKRAINE

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Where we are:

Ukraine

UKRAINE is European country

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Ukraine is aerospace countryUkraine is aerospace country

ANTONOV 225 is ANTONOV 225 is the largest plane in the largest plane in

the worldthe world

Sea Launch is Sea Launch is equipped with equipped with

Ukrainian rocketsUkrainian rockets

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Who we are:

National Aerospace University «KhAI»

1930 - founded as Kharkiv Aviation Institute1998 - Aerospace University2000 - National Aerospace University

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12000 students160 postgraduates700 teachers (400 Ph.D., 95 D.Sc.)2000 employees10 Faculties27 Specialities45 departmentsterr. 25 hectars

National Aerospace University «KhAI»:

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Research collaborationUnited KingdomGermanyFranceFinland AustriaSwedenUnited StatesMexicoSouth KoreaChinaJapan

International Activity:

About 600 students from 50 countries

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EU Projects

FP6SENARIO: Advanced Sensors and Novel Concepts

for Intelligent and Reliable Processing inBonded Repairs (INASCO, IAI, Bombardier)

ALCAS: Advanced Low-cost Airframe Structures (AIRBUS UK and 60 members consortium)

FP7HPH.COM: Helicon Plasma Hydrazine Combined

Micro Engine (Università degli Studi di Padova, ONERA, Thales and 10 members consortium)

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SURA - Ukrainian Space Shuttle (Joint project with National Space Agency and Academy of Science)

М =3М =3

М =53D model

Spacecraft Hypersonic aerodynamics

Space propulsionSpace propulsion((Joint project with Joint project with UniversiteUniversite dd’’OrleansOrleans, France ), France )

Arc Jet Engine

Stationary PlasmaThruster SPT-20

Ion-PlasmaThruster

Self-Heated Plasma Cathodes

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1. Project Idea:Satellite low-weight heavy-loaded composite structures

Heterogeneous Composite-to-Metal heavy-loaded joints

CFRP mechanical properties enhancement

with Nano-diamonds

CFRP tensile strength increased 107%

Composite structure weight savings 34%

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Existing telecommunication platforms Existing telecommunication platforms -- about 6 about 6 kW heat dissipations. kW heat dissipations.

Nearest future platform Nearest future platform -- more than 20 kW.more than 20 kW.

Current thermal control means (passive or singleCurrent thermal control means (passive or single--phase) are not sufficientphase) are not sufficient

TwoTwo--phase mechanically pumped loop (MPL) is phase mechanically pumped loop (MPL) is new solution for thermal control of powerful new solution for thermal control of powerful devices. devices.

MPL fundamentals was tested at MIR Space MPL fundamentals was tested at MIR Space Station Station

2. Project Idea:Two-phase mechanically pumped loops as thermal control means for future communication satellites

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Simplified hydraulic layout of MPL

Heat load

Heat reject

Industrial Partner: Thales Alenia Space France

MPL Benefits:30% thermal control system mass reduction

• 10 times lower power consumption

• thermal control accuracy ± 0.5 °C1 0 0 1 0 21 0 1 1 0 3

1 0 1

1 0 2

1 0 3

1 0 4

H e a t lo a d , k W

Pow

er c

onsu

mpt

ion,

W

1

23

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Service life of satellites is determined by life time of their power system.Chemical accumulators (lithium, nickel-metal-hydride and nickel-cadmium) are the main componentAccumulators life time can be proved with:

direct life tests - long-term and expensive;simulation - low accuracy;

3. Project Idea:European satellites power supply improvement with accumulators’accelerated tests

Innovation: Accumulators accelerated life tests technology, based on intensification of degradation processes

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Benefits:

Accumulator test time decreasing -2…3 months of accelerated tests instead of 12…15 years of direct life tests.European satellites life time increasing

Satellites weight decreasing

Power system development time and costs decreasing

Space debris reduction

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4.Project Idea:Active Multi-Version Fault-Tolerance Satellite Control Systems

Conventional:•Redundancy (doubling, tripling) with the same IP•Experimental tryout

Proposed

Satellite Reliability Approaches:

Infrastructure IP

IPIP

•Multi-version redundancy• Intellectuality principle

Multi-version IIP

IPIPIP

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Benefits:

Multi-parametrical adaptation to physical, design, and interaction faultsActive fault-tolerance with flexible self-

remedialRe-configuration of available satellite

resources with further faults considerationFPGA-based (Field Programmable Gate

Array), scalable, cheapLow weight and power consumptionApproach was used in Ukrainian satellite

and avionics design

System IIP

IIP

IP-core

IP-core

IIPIPIP

IIPIPIP

IP

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Concentrator moduleConcentrator module

5.Project Idea:Aluminiumluminium--polyimide concentrator solar polyimide concentrator solar modules for space applicationmodules for space application

Short-focus linear Fresnel lenses with using of high efficiency arsenide-gallium solar cells and secondary optics based on flexible aluminium-polyimide foiled dielectrics.

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•efficiency - up to 27 %•output power on area - up to 360 W/m2

•output power on mass - up to 400W/kg•concentration factor - 7-10 x•optical efficiency ofconcentrator system - > 80 %•focal distance - up to 30 mm

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BenefitsBenefits

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National Aerospace University National Aerospace University ““KhAIKhAI””KharkivKharkiv, UKRAINE, UKRAINE

Contacts:

Igor Rybalchenko

17 Chkalova str. 61070 Kharkiv, Ukraine

Phone: +38 057 719-0473E-mail: iar@khai.edu