Design, manufacture, and two-step calibration of a piezoelectric parallel microrobot at the millimeter scale for micromanipulation

Mechanism and Machine Theory, Journal Year: 2025, Volume and Issue: 206, P. 105928 - 105928

Published: Jan. 21, 2025

Language: Английский

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Development of a Highly Adaptive Miniature Piezoelectric Robot Inspired by Earthworms

Advanced Science, Journal Year: 2024, Volume and Issue: 11(29)

Published: June 5, 2024

Abstract Miniature resonant piezoelectric robots have the advantages of compact structure, fast response, high speed, and easy control, which attracted interest many scholars in recent years. However, usually suffer from problem poor adaptability due to micron‐level amplitude at feet. Inspired by fact that earthworms actuation trajectories all around their bodies move flexibly under ground, a miniature robot with circumferentially arranged driving feet improve is proposed. Notably, longitudinal‐vibration‐compound principle multilegged collaboration designed achieve robot, similar earthworms. The structure operating are simulated finite element method, prototype fabricated. weighs 22.7 g has dimensions 35.5 × 36.5 47 mm 3 . tethered an ultrasonic power supply, experimental results show speed reaches 179.35 s −1 exciting signal frequency 58.5 kHz voltage 200 V p‐p High achieved proposed it can on flat, fold, concave, convex surfaces, even inclined or rotating tube.

Language: Английский

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Development of a Miniature Piezoelectric Robot Combining Large-Load and High-Speed

Published: Jan. 1, 2025

Language: Английский

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A Quadruped Piezoelectric Ultrasonic Actuating Robot with Foot‐Leg‐Trunk‐Integrated Structure

Published: May 16, 2025

Legged piezoelectric robots have been extensively investigated due to their advantages in agile and stable locomotion. However, the existing designs predominantly adopt split‐type configurations, suffering from problems of complex structure, large size, difficulty characteristic consistency among multiple legs. This study proposes a quadruped robot with foot‐leg‐trunk‐integrated structure. It adopts hybrid mode combining first‐order out‐of‐plane bending vibration trunk horizontal driving legs generate elliptical trajectories at foot tips. Actuating forces are achieved through frictional coupling feet operating plane. Furthermore, decoupling strategy based on structural stiffness heterogeneity between is proposed, effectively alleviating synchronization issues multi‐leg caused by assembly errors vibrational coupling, enabling planar 3‐degree‐of‐freedom motion via coordination. The prototype has size 51 × 8.5 mm weight 14.8 g, it achieves maximum linear velocity mm/s, resolution 0.46 µm, rotational 158°/s. proposed features compact small lightweight, flexible motions, high displacement resolution, exhibiting good application prospects field requiring accuracy.

Language: Английский

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Muscle-like hydrogels with fast isochoric responses and their applications as soft robots: a minireview

Materials Horizons, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Various muscle-like hydrogels that emerged in recent years exhibit rapid and isochoric deformations upon stimulations. This minireview summarizes the development of hydrogels, their unique mechanisms, applications as soft robots.

Language: Английский

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