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Getting Started
Published in José Guillermo Sánchez León, ® Beyond Mathematics, 2017
Now, after evaluating the kinetic energy equation, we get the necessary kinetic energy to put the entire world population in orbit. Naturally this is just a toy example that has nothing to do with reality since we would need to consider the mass of the launcher and the fact that people would have to go in spaceships that have masses much bigger than that of their passengers. Until now we have sent about 600 people into space. The trip in a Soyuz spacecraft costs about 20 million dollars per person. Multiply that figure by the number of people living on earth and the result is thousands of times bigger than the world’s GDP. Let’s hope that we will not need to put the entire human population into orbit! UnitSimplify[12 m v^2*n]
Blockchain adoption for information sharing: risk decision-making in spacecraft supply chain
Published in Enterprise Information Systems, 2021
Kangning Zheng, Zuopeng (Justin) Zhang, Yun Chen, Jiajin Wu
The field of logistics and supply chain management is key to sustainable space exploration. The U.S. space supply chain was developed from its ballistic missile industry after World War II and has since become a multi-billion-dollar industry with its continuous expansion and addition of satellites and spacecrafts. Many start-up space companies emerged during the mid-2000s and they have started to revitalise the existing space markets by leveraging the practices from the spacecraft supply chains (Bryce Space and Technology 2017). Russia’s Federal Space Agency, Roscosmos, decided to secure its supply chain by upgrading its Soyuz rocket to the newer Soyuz-2 series to support the International Space Station. The Soyuz 2 rockets used a digital control system that makes their rockets more versatile than before (Bodner 2014). In Europe, an independent non-profit association, named as SPACE, was developed to support the European aerospace supply chain to increase their performance and efficiency. SPACE applies a special toolset derived from industrial best practices and standards (Space Aero 2019).
Using visualisations to develop skills in astrodynamics
Published in European Journal of Engineering Education, 2020
Lucinda Berthoud, Jonathan Walsh
The simulations were developed based on the principles put forward for the effective use of simulations in teaching engineering discussed in the introduction. The exercises were presented as a series of increasingly challenging problems for the students to solve. In the lectures, the students were told that the tools were for the benefit of practical learning about the theory presented. They were encouraged in the instructions to ‘play and experiment’ with the tool, in order to explore the physical phenomena. The students undertook these simulations during two sets of computer laboratory classes of 2 hours each, just after the theoretical lectures. For the first series of exercises, all students who started the laboratory at the beginning were finished by the end of the class. For the second series of exercises, which were more challenging, students were encouraged to carry on working in their own time if they did not finish, although many finished in the class. A demonstration script was provided at the beginning of each series of exercises for the students to gain an appreciation of the power of the tool, its use in real-world situations and to demonstrate particular learning points. The first demonstration concerned satellites in different types of orbits. The second concerned a rendezvous between a Soyuz transport capsule and the International Space Station. In the exercises, the students were encouraged to ask each other questions and interact, although each was responsible for doing their own exercises. It has been the experience of the authors that if the students work in pairs, the less confident students will sit back and observe, rather than participating, so individual work was encouraged.
Optimum conceptual design for the life support systems of manned spacecraft
Published in Cogent Engineering, 2020
M. Mahmoudi, A. B. Novinzadeh, F. Pazooki
Along with traditional manned spacecraft such as Apollo, Gemini, and Soyuz, there are various examples of optimization approaches for spacecraft design in the literature. For instance, a multi-disciplinary, multi-objective optimization was implemented by Viviani et al. (2017) to design the optimum shape of a re-entry spacecraft. Another example of the outer shape optimization of manned spacecraft was discussed by Ghaedamini Harouni & Mehne (2019), where the shape of the Orion type space capsule was optimized by considering the volumetric efficiency, stability, and aerodynamic heating.