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Model-Free Adaptive Positioning Control of the Bidirectional Stick–Slip Piezoelectric Actuator with Coupled Asymmetric Flexure-Hinge Mechanisms [PDF]
Sensors, 2023 A model-free adaptive positioning control strategy for piezoelectric stick–slip actuators (PSSAs) with uncertain disturbance is proposed. The designed controller consists of a data-driven self-learning feedforward controller and a model-free adaptive ...
Zhenguo Zhang +4 more
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Hysteresis Analysis and Positioning Control for a Magnetic Shape Memory Actuator [PDF]
Sensors, 2015 Magnetic shape memory alloys (MSM alloys), a new kind of smart materials, have become a potential candidate in many engineering fields. MSMs have the advantage of bearing a huge strain, much larger than other materials.
Jhih-Hong Lin, Mao-Hsiung Chiang
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Digital Twins for Industry 4.0 in the 6G Era
IEEE Open Journal of Vehicular Technology, 2023 Having the Fifth Generation (5G) mobile communication system recently rolled out in many countries, the wireless community is now setting its eyes on the next era of Sixth Generation (6G).
Bin Han +12 more
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Machines, 2023 Proportional–integral–derivative (PID) control is the most common control technique used in hydraulic servo control systems. However, the nonlinearity and uncertainty of the hydraulic system make it challenging for PID control to achieve high-precision ...
Jianhui He +4 more
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Positioning control of DC servomotor-based antenna using PID tuned compensator [PDF]
Журнал інженерних наук, 2021 Direct current (DC) servomotor-based parabolic antenna is automatically positioned using control technique to track satellite by maintaining the desired line of sight for quality transmission and reception of electromagnetic wave signals in ...
Eze P. C., Ugoh C. A., Inaibo D. S.
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Position control of tendon-driven fingers with position controlled actuators [PDF]
2012 IEEE International Conference on Robotics and Automation, 2012 Conventionally, tendon-driven manipulators implement some force-based controller using either tension feedback or dynamic models of the actuator. The force control allows the system to maintain proper tensions on the tendons. In some cases, whether it is due to the lack of tension feedback or actuator torque control, a purely position-based controller ...
Muhammad E. Abdallah +3 more
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Nihon Kikai Gakkai ronbunshu, 2020 In the logistic system, it is necessary to reduce the weight of the structure to realize energy-saving and highly efficient conveyance of a stacker crane that conveys packages in a warehouse.
Takeshi MURAKAMI, Koichi OSUKA
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018 To improve positioning accuracy of a magnetic head in hard disk drives (HDDs), a triple-stage-actuator system was proposed with a thermal positioning actuator for a magnetic head positioning system. This positioning system has three types of actuators: a
Takenori ATSUMI
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Mechanism Development and Position Control of Smart Buoy Robot
한국해양공학회지, 2021 There is a gradual increase in the need for energy charging in marine environments because of energy limitations experienced by electric ships and marine robots.
Hwi-Geun Park, Hyun-Sik Kim
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019 To increase recording density, a head positioning control system of a hard disk drive (HDD) has to compensate for vibration due to mechanical resonances of the system.
Shota YABUI +2 more
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