Upcoming Seminars

Past Seminars

May 28 Ann-Marlen Ruede: How Space Architecture Can Contribute to Mission Design

Since the beginning of time, humans have dreamt of exploring the stars and planets. Space architecture can help build the infrastructures, which enable this endeavor. But how exactly? In this seminar, the design of a crewed mission to drill for and analyze ice at the Martian North Pole will be presented. Special attention will be given to the methods used for selecting architectural features. Among the conclusions of the work, we find that a habitat and mission’s architecture is not only dependent on, but also supports strategies for sourcing, transforming and using resources. Furthermore, over long missions, designing circular economy approximating solutions are more mass efficient and can therefore have a positive impact on long-term logistics. Considering this, architecture can be seen as an opportunity to participate in optimizing a mission and increase its sustainability. This could not only be of benefit for any type of large space structure, but technologies and strategies developed for space could potentially also be used in sustainable Earth applications. Overlapping principles and synergetic opportunities will be discussed.

May 21 Nick Mullin: Design and verification of a thermal model for the CubeSat with 3d-printed heat sink

This talk is about Skoltech space team contribution into Bauman University “Yareelo” project - two satellites to be launched this year. We provided a heat sink for the payload, spectrophotometer with 2W heat dissipation. The heat sink is made of aluminum alloy and manufactured by 3d-printing. Heat pipes are designed and embedded to enhance thermal transfer properties. To carry out thermal analysis we developed a thermal model, which takes into account the 3D-printed part. Thermal model was fine-tuned and verified through a series of vacuum chamber tests in Skoltech Small Sat Lab.

May 14 Anton Afanasev: Attitude Control Algorithms in a Swarm of CubeSats: Kriging Interpolation and Coordinated Data Exchange

This study is a part of the Skoltech University project to deploy a swarm of four identical 3U CubeSats with gamma-ray sensors and their collective behavior will be exhibited in detecting gamma-ray bursts and coordinated attitude control. We consider a fully magnetic attitude control system, comprising a magnetometer as a part of attitude determination routine and three orthogonal magnetorquers as actuators. We study how the performance of such ADCS maybe enhanced by using measurements and state vectors exchange. We interpolate the exchanged data, using the Kriging algorithm in conjunction with Extended Kalman filter and Lyapunov-based controller, since it provides the auto-correlation and variance information about the magnetic field, which is of utmost importance for heterogeneous and noisy fields. In our simulations we compare the performance of the controller for a single satellite to that of the satellite in the swarm of CubeSats in the form of a rigid tetrahedron with interpolated distributed measurements.

May 07 Alexander Kharlan: Space-based Telecom Systems for Aiding the Next-gen Mobile Services

The global mobile telecommunication market has been growing rapidly over the last few years, with new emerging markets and applications, such as IoT, unmanned vehicles and machine-to-machine communications, driving the demand for more connections and at the same time tightening the requirements for the modern telecom systems. With the next-generation ground-based networks still on their way to global coverage and proving their efficiency in some of the use-case scenarios they were meant to bring in, a trend has been observed where many companies worldwide would consider introducing space-based systems for providing global mobile broadband connection of a comparable quality to hundreds of millions of users.

Our group at the Space Center has decided to establish whether this ambitious goal is achievable, and at what cost: the multilayer complex models that we use to assess the global telecom systems' performance and cost might help us understand whether there is after all a solid place for satellites in the global mobile telecom market, or military-like security and global coverage is all there is to it.