Analysis and Optimization of a Microgripper Driven by Linear Ultrasonic Motors [PDF]
Micromachines, 2022 This paper presents the vibration response analysis and optimal structural design of a microgripper driven by linear ultrasonic motors (LUMs) dedicated to improving end-point positioning accuracy.
Ranran Geng +4 more
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Dahl Friction Model for Driving Characteristics of V-Shape Linear Ultrasonic Motors [PDF]
Micromachines, 2022 The contact process of stator and slider described by the Coulomb friction model is basically in a pure sliding friction state, and a mechanical model based on the Dahl friction theory was proposed to describe the contact process between stator and ...
Bo Zhang +5 more
doaj +2 more sources
A Multi-Point Contact Model Considering Rough Surface for Linear Ultrasonic Motors: Validation and Simulation [PDF]
Micromachines, 2022 The performance and wear life of linear ultrasonic motors are directly determined by the stator–mover frictional contact behaviors. A complete contact model is important to clearly understand the stator–mover contact mechanism and accurately estimate the
Ying He, Zhiyuan Yao, Hao Xu
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Speed Sensorless Control of Linear Ultrasonic Motors Based on Stator Vibration Amplitude Compensation [PDF]
Sensors, 2020 In some applications of linear ultrasonic motors (LUSMs), not installing speed/position sensors can reduce the size and cost of the system, changes in load will cause fluctuations in the speed of the LUSM.
Yuzhao Yan +4 more
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Investigation of Displacement and Force Characteristics of Piezoelectric Multilayer Actuator for Active Preload Control System in Ultrasonic Motors [PDF]
MicromachinesThe paper represents both numerical simulations and experimental investigations of a piezoelectric active preload system that is foreseen to be applied to the active preload control system of rotors of ultrasonic piezoelectric motors.
Harsimran Singh Saini +2 more
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A Novel Motion Platform Based on Dual Driving Feet Linear Ultrasonic Motor [PDF]
MicromachinesThis paper presents a novel motion platform based on a π-shaped linear ultrasonic motor. Initially, a new preload device was designed in accordance with established criteria for high-power linear ultrasonic motors.
Yue Jian +5 more
doaj +2 more sources
Development of a Plate Linear Ultrasonic Motor Using the Power Flow Method [PDF]
MicromachinesLinear ultrasonic motors can output large thrust stably in a narrow space. In this paper, a plate linear ultrasonic motor is studied. Firstly, the configuration and operating principle of the Π-type linear ultrasonic motor is illustrated.
Yue Jian +4 more
doaj +2 more sources
Mechanical drift modeling and analysis of V-shaped linear ultrasonic motors with a flexible clamp
AIP Advances, 2020 The flexible clamp used in linear ultrasonic motors (LUMs) not only supports the motor but also simplifies the structure and improves the vibration characteristics.
Ranran Geng +3 more
doaj +2 more sources
High-Resolution Rotation-Measuring System for MEMS Ultrasonic Motors Using Tunneling Magnetoresistance Sensors [PDF]
MicromachinesThis study proposes a high-resolution rotation-measuring system for miniaturized MEMS ultrasonic motors using tunneling magnetoresistance (TMR) sensors for the first time.
Jiangbo He +5 more
doaj +2 more sources
Mode Optimization of Microelectromechanical-System Traveling-Wave Ultrasonic Motor Based on Kirigami [PDF]
MicromachinesHigh-quality traveling waves in stators are critical for traveling-wave ultrasonic motors (TUSMs) to achieve good stability and efficiency. However, the modal splitting and shape distortion that is induced by the anisotropic elasticity induce severe ...
Rong Li +4 more
doaj +2 more sources