...Xin Cheng; Huashan Liu; Zhen Zeng; Wenke Lu This paper proposes a saturated output feedback controller for flexible-joint robot manipulators with joints of arbitrary flexibility. First, under the framework of singular perturbation theory, a saturated flexible compensator is introduced...

... a high-performance controller for a manipulator because the flexibility, if not dealt with, can excite system natural frequencies and cause severe damage. However, control design for a flexible-joint robot manipulator is still an open problem. Besides being described by a complicated system model...