An Inverse Force Analysis of the Spherical 3-DOF Parallel Manipulator with Three Linear Actuators Considered as Spring System
The subject of our investigation is the spherical 3-DOF parallel manipulator with three linear actuators, any of them is attached to the base with a universal joint and to the platform with a spherical joint (see Fig.1). The fourth spherical joint between the platform and the base permits the spherical motion of the platform. Similar mechanical structures are widely used as mounting or supporting structures for solar panels, telescopes, radar and satellite antennas, mirrors for laser beams etc.
KeywordsParallel Manipulator Angular Displacement Spherical Joint Linear Actuator Compliance Matrix
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