thermoelasticity, FEM, ExoMars, ACS, TGO.

According to ESA-Roscosmos cooperation ExoMars, it is palnned to launch Trace Gas orbiter (TGO) in order to explore Mars. One of its most important parts is Atmospheric Chemistry Suite (ACS). It is the unified construction of four parts rigidly mounted relative to each other. ACS is fixed to the platform by the feets. Thermal expansion that arise as a result of an operation of the equipment leads to the fact that feets influence the platform and may cause its destruction. In this paper computer simulation was applied to a problem of qualitative and quantitative estimation of loads at attachment points caused by the thermal expansion. Thermoelastic analysis of ACS’s 3D-model was performed with Finite element method in systems SolidWorks and MSC.Patran/Nastran. This simulation it allowed determining the distribution of normal and tangential loads under different temperature’s gradients. Verification of the obtained results was performed.

1. Butenko, Anton Eduardovich Postgraduate student, Space Research Institute of the Russian Academy of Sciences, Moscow

2. Bugrova, Anna Dmitrievna Postgraduate student, Moscow State Institute of Electronics and Mathematics of National Research University Higher School of Economics, Moscow

3. Aksenov, Sergey Alekseevich Candidate of technical sciences, Associate Professor, Department of Mechanics and mathematical modeling, Moscow State Institute of Electronics and Mathematics of National Research University Higher School of Economics, Moscow

4. Bober, Stanislav Alekseevich Assistant, Department of Mechanics and mathematical modeling, Moscow State Institute of Electronics and Mathematics of National Research University Higher School of Economics, Moscow