Abstract
Today's manufacturing industry needs robots to work at high speeds to satisfy the demand for increased productivity. Many desirable characteristics of fibre-reinforced composite materials such as high strength-to-weight ratios and high stiffness-to-weight ratios make them suitable for high-speed robots. This paper presents a comparative study of the dynamic performance of a closed-loop manipulator constructed from steel, aluminium and two graphite epoxy laminates. A versatile modelling procedure using finite element method is explained for the analysis of dynamic behaviour of a robot. The study shows that the performance of a robot manufactured from composites is superior to robots manufactured from commercial metals such as steel and aluminium.
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