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Welding robots with strong robustness and high-precision trajectory tracking control play an important role in performing automatic welding processes under complex dynamic environments. This paper proposes a new variable structure control (VSC) based on multi-sliding-surface for welding robots with parameter uncertainties. The whole sliding-mode surface of VSC is divided into three sub-sliding-mode-surfaces...
Jumping robots provide an effective solution to overcome obstacles and perform locomotion in a rough and unstructured terrain. In this paper, an overview of jumping robots' principle, types, jumping and energy storage mechanism, uprighting mechanism, steering mechanism and models of kinematic and dynamic are presented. The existing technical problems and the future work are also discussed.
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