Space Station Rotational Stability

TL;DR

This paper provides passive rotational stability guidelines for space stations, analyzing various geometries and models to ensure stability and prevent tumbling, offering a cost-effective alternative to active stabilization.

Contribution

It introduces new passive stability guidelines for different space station geometries using comprehensive shell and component models.

Findings

Passive stability can be achieved with proper design.

Different geometries have distinct stability characteristics.

Guidelines improve safety and reduce costs.

Abstract

Designing for rotational stability can dramatically affect the geometry of a space station. If improperly designed, the rotating station could end up catastrophically tumbling end-over-end. Active stabilization can address this problem; however, designing the station with passive rotation stability provides a lower-cost solution. This paper presents passive rotational stability guidelines for four space station geometries. Station stability is first analyzed with thin-shell and thick-shell models. Stability is also analyzed with models of the station's major constituent parts, including outer shells, spokes, floors, air, and shuttle bays.