Thesis

A two-operator workstation design study

Results from a “science Functional Test” done on a glove-box type work station developed at NASA-Ames Research Center provided the questions addressed in the present study. An experiment was conducted to examine the optimum arrangement of access positions which would allow two operators to most effectively work together on tasks done inside a glove box. Two access position arrangements were considered in the study: a side access position arrangement and an opposite access position arrangement. In the experiment, 40 pairs of subjects worked on assembly tasks which involved fine and gross manipulation of objects. The subjects were divided into four groups according to access position (side vs opposite) and amount of coordination used to complete the assemblies (high vs low). Five “steps” were performed in each of the fine and gross manipulation task groups. Each step was considered one part of an assembly sequence, and involved reaches to different points inside the workstation. After a practice trial the subjects performed each of the five steps in sequence four additional times. (See more in text.)

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