engleski

Forward Kinematics of a Stewart Parallel Mechanism

Parallel kinematic manipulators posses some inherent advantages over their serial counterparts, such as rigidity, precision and higher workload. However, their movement control is restricted to inverse kinematics only, because of the complexity of the forward kinematics relations. The aim of this work is to combine different mathematical representations of the forward kinematics problem with various optimization algorithms and find a suitable combination that may be utilized in real-time environment. Additionally, we note the existence of equivalent trajectories of the mobile platform and suggest an adaptation to the solving method that, having satisfied certain assumptions, is able to successfully solve the forward kinematics problem in real-time conditions with very high precision.

stewart parallel manipulator; forward kinematics

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