Start Date
4-1988 8:00 AM
Description
One of the major purposes of the International Space Station (ISS) and MTFF is the performance of experiments and processes in a very low gravity environment. Considering the user's demands upon the microgravity quality, it appears more and more difficult to meet the corresponding requirements under worst case constraints. In this situation, the availability of an overall model as a tool for the assessment of the microgravity quality is of utmost importance. Based upon a critical review of the microgravity requirement in the time and frequency domain the present paper describes the development of an overall microgravity model to analyse both the low frequency microgravity disturbance sources such as air drag, gravity gradient and S/C dynamic and the high frequency microgravity disturbance sources such as reaction wheels, fluid loops, gyros etc. The computerization of the comprehensive model exhibits the benefits of a computer aided design and engineering of future orbital systems, such as design optimization on system, subsystem, and assembly level with a quick access to various representations of microgravity performance such as vector fields, amplitude spectra, time profiles and envelopes.
Modelling of the Microgravity Environment of the Man Tended Free Flyer (MTFF)
One of the major purposes of the International Space Station (ISS) and MTFF is the performance of experiments and processes in a very low gravity environment. Considering the user's demands upon the microgravity quality, it appears more and more difficult to meet the corresponding requirements under worst case constraints. In this situation, the availability of an overall model as a tool for the assessment of the microgravity quality is of utmost importance. Based upon a critical review of the microgravity requirement in the time and frequency domain the present paper describes the development of an overall microgravity model to analyse both the low frequency microgravity disturbance sources such as air drag, gravity gradient and S/C dynamic and the high frequency microgravity disturbance sources such as reaction wheels, fluid loops, gyros etc. The computerization of the comprehensive model exhibits the benefits of a computer aided design and engineering of future orbital systems, such as design optimization on system, subsystem, and assembly level with a quick access to various representations of microgravity performance such as vector fields, amplitude spectra, time profiles and envelopes.
Comments
No other information or file available for this session.