Simulating the gravity by rotation as a multi-objective design problem. A metaheuristic approach toward the design of a space station with artificial gravity.

Zhelun Zhu, Muhao Chen

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

Abstract

Long-term human Space exploration requires appropriate design strategies to deal with extraterrestrial conditions, including the perception of zero gravity. Studies have shown how microgravity negatively impacts living beings' physiology, causing non-negligible effects on the human body. Many proposals in the literature exist for a space station with artificial gravity by rotation to mitigate its impact. The so-generated fictitious force is associated with centrifugal force, and is related to the object mass, its distance from the rotation axis, and the angular velocity. The design problem involves balancing the parameters considering their reciprocal relationship and user experience. Increasing the radius could be convenient during this process since the generated force can achieve a G value with a relatively lower angular velocity. Still, it would also significantly increase the station's circumference and, therefore, the launch effort. Vice versa, the same gaol achieved by a low radius requires high angular speed, which negatively impacts the user experience.
The present work investigates the adequate combination between the mentioned parameters using a generative design strategy based on a metaheuristic algorithm, exploring configuration for a Space station with artificial gravity. The design problem involves intertwined and conflictual interests between the parameters, which would be difficult to resolve if based on manual calculations. The objectives will be defined to lead the research of the (near) optimal configuration, including an adequate number of internal rooms and functions for a hypothetical long-duration in-orbit stay, as well as crew member number. In addition, using an adjacent matrix will consider the Space station's connectivity performance regarding internal function organization.
Original languageEnglish
Title of host publication75th International Astronautical Congress (IAC)
Subtitle of host publicationResponsible Space for Sustainability
PublisherInternational Astronautical Federation
Publication statusPublished - 1 Nov 2024
Event75th international astronautical congress: Responsible Space for Sustainability - MiCO, Milan, Italy
Duration: 14 Oct 202418 Oct 2024
https://www.iac2024.org/

Conference

Conference75th international astronautical congress
Abbreviated titleIAC2024
Country/TerritoryItaly
CityMilan
Period14/10/2418/10/24
Internet address

Keywords

  • Artificial Gravity
  • Space Architecture
  • Modular Units
  • Multi-Objective Optimization
  • generative design

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