Aerospace Multifunctional Composite Materials with Structural, Thermal-Protection and Protective (against Radiation and Electromagnetic Emission) Properties
- Paper number
IAC-08.C2.4.8
- Author
Mr. Viktor Tykhyy, Yuzhnoye State Design Office, Ukraine
- Coauthor
Mr. Jesus Marcos, INASMET-TECNALIA, Spain
- Coauthor
Ms. Garbiñe Atxaga, INASMET-TECNALIA, Spain
- Coauthor
Mr. Alexandr Potapov, Yuzhnoye State Design Office, Ukraine
- Year
2008
- Abstract
It is possible to create the lightweight fully integrated equipment for aerospace engineering using multifunctional structures, which essentially are a new step in the design concept. The design solution concept using multifunctional structures is in that the most part of the satellite electronic equipment should be accommodated on walls of these satellites, which in its turn would function as structural elements to provide thermal conditions and protection. During manufacture of electronic equipment casings of aluminum plates with design thickness, EMC, EMR and radiation shielding problems do not emerge. When the other material is under consideration, the universally adopted practice requires that it should be reduced to equivalent aluminum thickness from relation between this material and aluminum densities. Carbon fibers are used as skin material for panels being developed. The panels also include an aluminum honeycomb filler. It is well known that from the EMC and radiation protection viewpoint, these materials are not the best of all. This report gives practical assessment of electromagnetic emission shielding efficiency in broad band using multifunctional panels with skins of carbon composites and aluminum honeycomb filler as a shield. Experimental investigation of MFS electromagnetic emission energy attenuation was conducted by two methods such as transmission line (when placing investigated material specimen into coaxial-waveguide transmission line) and in free space (or in anechoic chamber). Creation of sandwich structures with alternate layers of low and high nuclear charge materials is the most known solution as to electronic space radiation protection. Such ideology, as applied to our task of improving characteristics of multifunctional structures as to space radiation protection, seems to be rather promising. Carbon-plastic skins with carbon as prevailing element can quite play role of materials with low nuclear charge. When a layer of heavy metal is placed between skins, a solution can be obtained which enables for improving protective characteristics with respect to space radiation. This version is used for further analysis. For design determination of characteristics of three-layered structure shielding, the analysis is done using three-dimensional simulation of charged particle transport. As can be seen, the analysis results justify fully the adequacy of scheme developed for improving shielding characteristics of multifunctional panels with respect to space radiation. Tests have been carried out in order to validate solutions proposed to improve characteristics of multifunctional panels as to space radiation shielding. The results obtained validate selection of scheme for multifunctional panels improvement.
- Abstract document
- Manuscript document
(absent)