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361
Structural optimization and magneto-thermal coupling simulation of limited angle torque motor
Published 2025-01-01“…The limited-angle torque motor (LATM) is an electric actuator capable of rotating within a limited angular range and outputting a stable torque. …”
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362
Cable Driven Rehabilitation Robots: Comparison of Applications and Control Strategies
Published 2021-01-01“…Significant attention has been paid to robotic rehabilitation using various types of actuator and power transmission. Amongst those, cable-driven rehabilitation robots (CDRRs) are relatively newer and their control strategies have been evolving in recent years. …”
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363
Modeling of low-frequency acoustic NDE to detect delaminations in multilayer polymer-composite structures
Published 2024-10-01“…The experiments were carried out on a flat square panel, where wave motions were excited by a disk-shaped omnidirectional piezoelectric (PZT) actuator placed at the center of the 2 mm-thick panel and artificially created circular delaminations, with diameters of 1.5 and 3 cm, were located along the diagonals of the square at a distance of 22 cm from the center. …”
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364
High-Performance Wireless Piezoelectric Sensor Network for Distributed Structural Health Monitoring
Published 2016-03-01“…Each node supports up to 8 PZT transducers, one of which works as the actuator generating the lamb-wave at an arbitrary frequency, while the responding vibrations at other PZT sensors are sensed simultaneously. …”
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365
Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM
Published 2019-01-01“…For GLA analysis, a classic proportional-integral-derivative (PID) controller treats a servo as an actuator and acceleration as the feedback signal. Moreover, a wind tunnel test has been completed and the effectiveness of the control technology is validated. …”
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366
L1 Adaptive Fault-Tolerant Attitude Tracking Control of UAV Systems Subject to Faults and Input Saturation
Published 2024-01-01“…After the conversion and reorganization of such uncertainties including actuator faults, sensor faults, input saturation, and external disturbances, a nonlinear uncertain system model is developed. …”
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367
Active Vibration Control of Helicopter Maneuvering Flight Using Feedforward-Robust Hybrid Control Based on Reference Signal Reconstruction
Published 2021-01-01“…Further experiments of real-time free-free beam vibration control are performed, driven by a stacked piezoelectric actuator. The instantaneous overshoot of measured response is 42% less than the peak value and its attenuation reaches 85% within 2.5 s. …”
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368
Numerical and Experimental Stability Investigation of a Flexible Rotor on Two Different Tilting Pad Bearing Configurations
Published 2014-01-01“…In this paper, the weighted instrumental variable (WIV) based system identification method for rotating machinery stability is investigated based on a sine sweep forward excitation with an electromagnetic actuator. The traditional multiple input multiple output (MIMO) frequency response function (FRF) is transformed into a directional frequency response function (dFRF). …”
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369
Sprawl Angle in Simplified Models of Vertical Climbing: Implications for Robots and Roaches
Published 2011-01-01“…For quadratic-in-velocity power output actuation models typical of commercially available electromechanical actuators, our results suggest the new hypothesis that sprawled posture may confer significant energetic advantage. …”
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370
Study on Electrical Parameter Matching of Piezoelectric Stack Periodic Strut for Helicopter Cabin Noise Control
Published 2022-01-01“…A three-period PSPS strut composed of piezoelectric stack actuator and PV strut is used for experimental research, and the matching of electrical parameters of this PSPS in the test is analyzed.…”
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371
Investigation of Structural Nonlinearity Effects on the Aeroelastic and Wake Characteristics of a 15 MW Wind Turbine
Published 2025-01-01“…This study presents a nonlinear aeroelastic model that accounts for large deformations of slender, flexible blades, coupled through the Actuator Line Method (ALM) and Geometrically Exact Beam Theory (GEBT). …”
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372
Online Structural Health Monitoring and Parameter Estimation for Vibrating Active Cantilever Beams Using Low-Priced Microcontrollers
Published 2015-01-01“…This paper presents a structural health monitoring and parameter estimation system for vibrating active cantilever beams using low-cost embedded computing hardware. The actuator input and the measured position are used in an augmented nonlinear model to observe the dynamic states and parameters of the beam by the continuous-discrete extended Kalman filter (EKF). …”
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373
In Vitro Model of Vascular Remodeling Under Microfluidic Perfusion
Published 2024-12-01“…We developed a portable microfluidic system that combines spontaneous lumen formation from human umbilical endothelial cells (HUVECs) in fibrin–collagen hydrogels with active perfusion controlled by a braille actuator. Adaptive interstitial flow and feedthrough perfusion switching enabled the successful culture of spontaneously formed naturally branched lumens for more than one month. …”
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374
A Longitudinal-Bending Hybrid Linear Ultrasonic Motor and Its Driving Characteristic
Published 2022-01-01“…As a new type of driver, linear ultrasonic motor (LUSM) is widely used in the high-tech field because of its low speed, high thrust, low noise, and no electromagnetic interference. However, as an actuator used in microdevices, most of the existing LUSMs are large in size and not compact in structure. …”
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375
Modelling and Experimental Investigation of an Active Damper
Published 2006-01-01“…The size of the orifice is adjusted by a controlled linear piezoelectric actuator that positions the conical core into a conical cavity. …”
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376
Enhancing ride comfort of semi-active suspension through collaboration control using dung beetle optimizer optimized Fuzzy PID controller
Published 2025-01-01“…The control parameters generated by fuzzy control are utilized as the initial values for DBO iteration to obtain the optimal solution, which is subsequently fed into the PID controller to regulate changes in the actuator’s magnetic field. Use MATLAB/Simulink to build a quarter semi-active suspension model with magnetorheological (MR) dampers for simulation analysis. …”
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377
A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
Published 2015-01-01“…Six different stability boots were tested in a novel device that allowed body weight to be taken into account using a pneumatic actuator. The fixation of the boots was controlled using two air pad pressure sensors. …”
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378
An interactive soft robotic hand-task training system with wireless task boards and daily objects on post-stroke rehabilitation
Published 2025-01-01“…Individually controlled finger actuators assist stroke patients during various grasping tasks. …”
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379
Exceptionally high work density of a ferroelectric dynamic organic crystal around room temperature
Published 2022-05-01“…When transitioning at 295–305 K on heating and at 265–275 K on cooling the ferroelectric crystals of guanidinium nitrate exert a linear stroke of 51%, the highest value observed with a reversible operation of an organic single crystal actuator. Their maximum force density is higher than electric cylinders, ceramic piezoactuators, and electrostatic actuators, and their work capacity is close to that of thermal actuators. …”
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380
Hardware-in-the-loop controller testing and visualization of an industrial gantry
Published 2025-02-01“…Motion data from the model can be used to optimize the actuator controller, make physical design assessments, and predict possible failure scenarios such as software/hardware malfunctions. …”
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