Документ взят из кэша поисковой машины. Адрес оригинального документа : http://danp.sinp.msu.ru/Seminars_Pdf-filesPresentations/Chechenin_Presentation_14-01-16.pdf Дата изменения: Thu Feb 18 15:16:58 2016 Дата индексирования: Sat Apr 9 23:56:13 2016 Кодировка: Поисковые слова: spacecraft

Joint Design of Micrometeoroid/Orbital Debris Impact Shield and Development of Failure Risk Assessment System for Orbital Spacecraft
Nikolay G. Chechenin1, Peijie Li
1

2

Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University 2Tsinghua University


Space Debris Growth

http://www.nasa.gov/pdf/582393main_OCT-Orbital_Debris_TAGGED.pdf
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 2


Space Debris as a Threat to Spacecrafts
As of 2009, about 19,000 pieces of debris larger than 5 cm are tracked, with 300,000 pieces larger than 1 cm estimated to exist below 2000 km altitude.[1]

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

3


Space Debris as a Threat to Spacecrafts

Strong damage of solar panels in modul "Spectr" ISS "Mir" (June 1997) Thermoprotective coatings damage (June 2007)
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 4


Protection Measures

Growth mitigation: -vehicle-robotic capture, -navigation, -mission duration extension, -substantial additional propellant, -capture and deorbit an existing derelict sattelite from approximately the same orbital plane
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 5


Impact Protection Measures

Balistic shielding

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

6


Whipple Shielding

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

7


Balistic shielding

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

8


Balistic Limit Equations (BLEs)
dc = f(p,t,t,V,,y)

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

9


Strike Test Facilities

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

10


Test Facilities at SINP MSU
- Microparticle accelerator facilities at SINP MSU: - Van-der-Graaf based facility (submicron particles, up to 1-2 micron size, up to 10 km/s) - Cocroft-Walton based facility (submicron particles, up to 1-2 micron size, up to 7 km/s) - Low veloscity (< 1 km/c) microparticle installations. - Micrometeoroid acceleration facility at Samara AeroSpace Institute (up to 15 km/s)

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

11


Two-Stage Light-Gas Gun (LGG)

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

12


Two-Stage Light-Gas Gun (LGG)

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

13


NASA Johnson Space Center White Sands Test Facility two-stage light-gas gun (LGG)

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

14


Design and Tests of Strike Protection Screens
m V L S L

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

15


Meteoroid Strike Test Facilities in Russia
- LGG facility at Institute of Mechanics at MSU -The State Research Institute of Aviation Systems (SRIAS ROSKOSMOS) - LGG installations: 2-10 mm diameter steel, titanium and aluminium projectiles, 5-11 km/s. A new small-size two-stage acceleration device; the second step is a running explosive barrel squeeze [Petrunin; Smirnov; Gadassine, 1998, 1999]. -Institute of Experimental Physics of Russian Federal Nuclear Center (RFNC-VNIIEF): multistage explosive advanced launching technology - up to 15 km/s. [Bokhan et al., 1992; Belov et al., 1993, 1997; Schlyapnikov et al., 1998; Kulikov et al., 1998; Kostin et al., 1998]
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 16


Modified Whipple Shields

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

17


Balistic shielding

Equal weight Whipple and multi-shock shield ballistic limits, for 1.9 g/cm2 shield mass per unit area, 22 cm overall standoff, 0o impacts.
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 18


ISS assembly (Flight 5A)

(solar arrays removed for clarity)
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 19


"Zvezda" Service Module Whipple Shields

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

20


"Zvezda" Service Module Whipple Shields

"Zvezda" Service Module (SM) Whipple shields also include an MLI blanket (areal density of 0.06 g/cm2) located near the rear wall. Two zones on SM contribute the majority of the M/D impact and penetration risk due to their area, exposure and relatively short standoff (S=5 cm). Approximately 60% of the meteoroid/debris penetration risk is represented by the SM working compartment's small diameter cylinder section (zone 6, 19.7m2, 13% of total SM area) and large diameter cylinder section (zones 10 and 11, 38.1m2, 25% of total SM area).
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 21


Polymer-NanoCarbon Composites Based New Approach to D/O Shields

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

22


Polymer-NanoCarbon Composites Based New Approach to D/O Shields

Wardle, 2009, Dept. of Aeronautics and Astronautics, MIT January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 23


A composite sandwich panel with honeycomb core and face sheets

Double-Honeycomb Panel Structure with MLI

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

24


SuperCompressible CNTs

F

05_Cao, Science, v310 January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 25


SuperCompressible CNTs

P.D. Bradford et al, Carbon, v49 (2011)2834
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 26


Vertically Aligned CNT - arrays growth (SINP MSU)

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

27


Vertically Aligned CNT - arrays growth

Multilayer Polymer-CNT compounds are developing at SINP MSU

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

28


Compound Research Facility

Optical, electon microscopy caracterization, microRaman scattering

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

29


Conclusions
1. Space debris are of a real threat for spacecraft and new protective measures are to be developed: - new materials - new shield design - software to predict shield resistance - test instrumentation. 2. To develop highly efficient M/OD shields basic knowledge of the strike resistance is necessary, i.e. basic research of all the process must be an inherent component of the program. 3. Assessment software of the M/OD shield impact resistance 4. Assessment software of spacecraft failure risk.
January 26, 2016 January 19, 2015 2nd China-Russia Joint Space Science Project Proposals Workshop 30


Objectives for Joint Project
1. Design of an advanced orbital debris/micrometeoroid (M/OD) shields based on new materials and new design of the shield structure. 2. Tests and evaluation of the shield performance and hypervelocity impact characteristics. 3. Development of the software evaluation system for M/OD shield. 4. Development of an advanced M/OD risk assessment system.
January 26, 2016 2nd China-Russia Joint Space Science Project Proposals Workshop 31


Thanks for your attention!!!

January 26, 2016

2nd China-Russia Joint Space Science Project Proposals Workshop

32