Mechanical Systems and Signal Processing

Release date:

Dec 10,2025

With the rapid development of industry, actuation systems in robotics, automobiles, medical devices, and other fields requirecomplex multi-dimensional movements in a compact space, such as the joint bending of micro-robots, the 360-degree rotation ofmechanical eyeballs, and nano-movement in the field of biological cells [1-3]. The traditional actuation systems utilize several singledegree-of-freedom (DOF) motors stacked together to achieve multi-dimensional motion, which results in two critical issues [4,5]. Thecoordination control of multiple single-DOF motors tvpically requires elaborate mechanical. transmission devices, which can signifcantly enlarge the system size, Furthermore, these transmissions introduce friction and alignment issues that lead to increased errors intransmission accuracy and positioning precision. The multi-DOF motor that achieves multi- dimensional motion through a single motorcan eliminate the need for complex connection mechanisms employed in the combination of multiple single-DOF motors. "This

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