Concept
Torque
Related publications (104)
3D printed large amplitude torsional microactuators powered by ultrasound
Mahmut Selman Sakar, Mehdi Ali Gadiri, Junsun Hwang, Amit Yedidia Dolev
Here, we introduce a design, fabrication, and control methodology for large amplitude torsional microactuators powered by ultrasound. The microactuators are 3D printed from two polymers with drastically different elastic moduli as a monolithic compliant me ...
2024Permanently magnetized elastomer rotating actuator using traveling waves
We report a soft actuator that generates continuous rotation of an object placed on it by electromagnetically exciting circular travelling waves in a soft disk. The disk, that serves as the stator, is made of a stretchable composite consisting of segments ...
Iop Publishing Ltd2024Digital-Image-Correlation for Simulating Cyclic Local Buckling in Steel Beams
Dimitrios Lignos, Albano António De Abreu E Presa De Castro E Sousa, Selimcan Ozden
Nonlinear continuum finite element (CFE) analyses rely on accurate multiaxial constitutive law formulations along with reliable imperfection patterns for simulating nonlinear geometric instabilities in steel members under mechanical loading. Validations of ...
Wiley2023Explanation of Optical Force and Torque on Nanomotors as the Interplay of Huygens Sources
Olivier Martin, Karim Achouri, Mintae Chung
Being able to understand how optical forces emerge from the interaction of light with matter is paramount for controlling the motion of nanoparticles as well as powering nanomotors. The purpose of this work is to uncover the physical mechanisms at the orig ...
IEEE2022Principle and Analysis of Radial-Force-Based Swirling Actuator for Low-Speed High-Torque Applications
This article proposes a swirling actuator that uses the electromagnetic radial force and mechanical gears to generate rotational torque. The proposed actuator generates a rotating radial force between an inner stator and a swirler. The gears on the swirler ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Analytical modeling and experimental validation of rotationally actuated pinned–pinned and fixed–pinned buckled beam bistable mechanisms
Simon Nessim Henein, Loïc Benoît Tissot-Daguette, Hubert Pierre-Marie Benoît Schneegans, Etienne Frédéric Gabriel Thalmann
Buckled beams have become key building blocks in compliant mechanisms to achieve nonlinear behaviors, such as bistability, constant-force and stiffness tuning. However, designing and modeling such components is challenging due to their highly nonlinear cha ...
2022Optical rotating torque sensor with nano newton-meter resolution based on a hanging torsion wire
Simon Nessim Henein, Etienne Frédéric Gabriel Thalmann, Billy Nussbaumer
This article presents a novel torque measuring setup working in the nano newton-meter range. The central novelty is a long (1 meter range) thin (diameter of a few tens of micrometers) metallic wire used instead of the relatively stiff torsion zone of the s ...
2021Uplift mechanics of unanchored liquid storage tanks subjected to lateral earthquake loading
Motivated by the seismic response of unanchored liquid storage tanks, their uplift mechanism under strong lateral loading is examined. Using three-dimensional finite element models, nonlinear static analysis is conducted to define the moment-rotation relat ...
ELSEVIER SCI LTD2021Design and Manufacturing of an Electrostatic MEMS Relay for High Power Applications
Yves Perriard, Yoan René Cyrille Civet, Christian Köchli, Florian Louis Copt
This paper addresses the design and manufacturing of a crab-leg based MEMS relay for a high power application. Thanks to a contact resistance lower than 100 mΩ, the relay can hold a current in the order of magnitude of an Ampere without further thermal lim ...
2021Device for measuring a force exerted on an object
Simon Nessim Henein, Charles Baur, Mohammad Hussein Kahrobaiyan, Mohamed Gamal Abdelrahman Ahmed Zanaty
The present invention relates to a device for measuring a contact force exerted by an object on a probe comprising a lever and said probe for contacting the object. The lever is pivotably coupled to a body by coupling means. The device comprising a fixed f ...
2020