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The objective of this paper is to elucidate how the ergonomic experiment is designed to simulate the space operation conditions and evaluate the influence of these conditions on mechanical characteristics of basic actions. The ergonomic methodologies and data analysis technologies are translated into a potential for better understanding of astronauts' potential incapacitation during space flight. Firstly, the ergonomic simulation experiment is implemented to get the operation force data of basic actions. Secondly, the force data are classified and identified from different operation conditions by the Hybridized K-means method. Finally, the analysis results are utilized to evaluate the condition effect on mechanical characteristics. It shows that the data of suspended conditions affect upper limb strength more significantly than the result of the constrained condition. The Hybridized K-means algorithm is a good attempt of the evaluation methods for the assessment of the astronaut operation capabilities.

Mechanical Characteristics of Basic Actions in Simulated Space Operation Conditions