Crack of a helicopter main rotor actuator attachment: failure analysis and lessons learned by L. Allegrucci, F. De Paolis, A. Coletta, M. Bernabei

“…Following the preliminary examination, only front servo actuator attachment was found to be broken in two parts. …”
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Experiments on Optimal Vibration Control of a Flexible Beam Containing Piezoelectric Sensors and Actuators by Gustavo L.C.M. Abreu, José F. Ribeiro, Valder Steffen Jr

“…In this paper, a digital regulator is designed and experimentally implemented for a flexible beam type structure containing piezoelectric sensors and actuators by using optimal control design techniques. …”
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Structural Design and Optimization of Flexible Commutation Amplification Mechanism based on Giant Magnetostrictive Actuator by Xu Bin Wang Chuanli Yu Caofeng Xie Tian

“…A micro-displacement transmission mechanism with giant magnetostrictive actuator (GMA) as the driving unit is designed, which uses lever-type flexure hinge for displacement commutation and amplification. …”
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Design and Test of Dual Actuator Nose Wheel Steering System for Large Civil Aircraft by Ming Zhang, Rongmin Jiang, Hong Nie

“…A following swivel selector valve is firstly designed to meet the demand for the hydraulic pressure commutating as soon as the dual actuator nose wheel steering mechanism passes through its dead center position. …”
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Ex vivo validation of magnetically actuated intravascular untethered robots in a clinical setting by Leendert-Jan W. Ligtenberg, Nicole C. A. Rabou, Constantinos Goulas, Wytze C. Duinmeijer, Frank R. Halfwerk, Jutta Arens, Roger Lomme, Veronika Magdanz, Anke Klingner, Emily A. M. Klein Rot, Colin H. E. Nijland, Dorothee Wasserberg, H. Remco Liefers, Pascal Jonkheijm, Arturo Susarrey-Arce, Michiel Warlé, Islam S. M. Khalil

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Bifurcation Type Change of AC Electrostatically Actuated MEMS Resonators due to DC Bias by Dumitru I. Caruntu, Kyle N. Taylor

“…This paper investigates the nonlinear response of microelectromechanical system (MEMS) cantilever resonator electrostatically actuated by applying a soft alternating current (AC) voltage and an even softer direct current (DC) voltage between the resonators and a parallel fixed ground plate. …”
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Research of Output Characteristic and Design of a Swing SMA Movable Tooth Drive Actuator by Yaqi Jiang, Lizhong Xu

“…A kind of swing movable teeth transmission drive actuator with SMA（Shape memory alloy） is designed， and the working principle of this kind of actuator is described. …”
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An Over-Actuated Hexacopter Tilt-Rotor UAV Prototype for Agriculture of Precision: Modeling and Control by Gabriel Oliveira Pimentel, Murillo Ferreira dos Santos, José Lima, Paolo Mercorelli, Fernanda Mara Fernandes

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Design of a 20,000 Pound Variable Stiffness Actuator for Structural Vibration Attenuation by John Leavitt, James E. Bobrow, Faryar Jabbari

“…This paper describes the design of a novel actuator capable of protecting a full scale structure from severe load conditions. …”
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Fault Detection in an Electro-Hydrostatic Actuator Using Polyscale Complexity Measures and Bayesian Classification by Soleiman Hosseinpour, Witold Kinsner, Saman Muthukumarana, Nariman Sepehri

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Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation by Changgil Lee, Seunghee Park

“…To achieve this goal, a scanning laser source actuation technique is utilized to generate a guided wave and scans a specific area to find damage location more precisely. …”
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Adaptive compensation for multi-axial real-time hybrid simulation via nonlinear parameter estimation by Santiago Ruiz, Wei Song

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A Precessing-Coin-like Rotary Actuator for Distal Endoscope Scanners: Proof-of-Concept Study by Nirvana Gharib, Mohammad Reza Yousefi Darestani, Kenichi Takahata

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Disturbance-Observer-Based Fixed-Time Backstepping Control for Quadrotors with Input Saturation and Actuator Failure by Tao Huang, Kang Liu, Yefeng Yang, Chih-Yung Wen, Xianlin Huang

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Analysis and Experimental Study on Dynamic Behavior of Stepper-Actuated Dual-Axis Data Transmission Antenna by Zhaomingyue Zheng, Wei Cheng, Ming Li, Guangyuan Wang, Limeng Tan

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Hysteresis Modeling of Magnetic Shape Memory Alloy Actuator Based on Krasnosel'skii-Pokrovskii Model by Miaolei Zhou, Shoubin Wang, Wei Gao

“…As a new type of intelligent material, magnetically shape memory alloy (MSMA) has a good performance in its applications in the actuator manufacturing. Compared with traditional actuators, MSMA actuator has the advantages as fast response and large deformation; however, the hysteresis nonlinearity of the MSMA actuator restricts its further improving of control precision. …”
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Operational Pitch Actuation Dynamics for Offshore Wind Turbines Ranging from 5 to 50 MW by Michael Jeong, Eric Loth, Chris Qin, Mandar Phadnis, Manuel Pusch, Lucy Pao

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Self-Diagnosis and Self-Reconfiguration of Piezoelectric Actuator and Sensor Network for Large Structural Health Monitoring by Dong Liang, Liaoni Wu, Zhifeng Fan, Yang Xu

“…Then, the effects of piezoelectric actuator and sensor bonding defects on Lamb wave propagations are investigated in a real-world monitoring experiment for the large aviation aluminum plate. …”
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Adaptive Fuzzy Cooperative Control for Nonlinear Multiagent Systems with Unknown Control Coefficient and Actuator Fault by Xin Deng, Xiaoping Liu, Yang Cui, Cungen Liu

“…The unknown control coefficient and the remaining control rate of actuator fault can be solved by introducing a Nussbaum function. …”
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Theory of Stiffness Synthesis by Adding Redundant-actuated Limb on Spatial 6-DOF Parallel Mechanism by Shuangshuang Zhang, Hongtao Yang, Qigeng Liu

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