Results 31 to 40 of about 5,812 (264)

Vibrot, a simple device for the conversion of vibration into rotation mediated by friction: preliminary evaluation. [PDF]

PLoS ONE, 2013
While "vibrational noise" induced by rotating components of machinery is a common problem constantly faced by engineers, the controlled conversion of translational into rotational motion or vice-versa is a desirable goal in many scenarios ranging from ...
Ernesto Altshuler, Jose Martin Pastor, Angel Garcimartín, Iker Zuriguel, Diego Maza   +4 more
doaj   +1 more source

Dynamic Analysis and Fault Diagnosis for Gear Transmission of a Vibration Exciter of a Mine-Used Vibrating Screen under Different Conditions

Applied Sciences, 2022
The helical gear pair of a box-type vibration exciter of a mine-used linear vibrating screen is subjected to complex excitation and prone to broken tooth failures.
Xiaohan Cheng, Zongwu Li, Congjie Cao, Yazhou Wang, Nanqin Ding, Guangqiang Wu   +5 more
doaj   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

Current situation of vibration tactile coding

工程科学学报, 2021
In recent years, with the progress and development of science and technology, the research on artificial intelligence and wearable devices continues to develop, and researchers increasingly find ways to provide a kind of more comfortable and ...
Jing-yi DU, Zhi-qi HUANG, Dong-yi CHEN, Tao-wei LEI   +3 more
doaj   +1 more source

Increasing the Frequency Resolution when Measuring Vibrations of Rotating Bodies with Fixed Beam Laser Vibrometry

Acoustical Physics, 2023
AbstractLaser Doppler vibrometry is actively used in experimental studies because of its noncontact measurement technique. When using a stationary laser to measure the vibrations of rotating bodies and Fourier transform to process the results of such measurements, a problem arises, associated with a decrease in the frequency resolution of the spectra ...
V. V. Artelnyi, A. A. Rodionov, A. V. Stulenkov   +2 more
openaire   +1 more source

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

Advanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati, Yoann Lalatonne, Cédric Chauvierre   +2 more
wiley   +1 more source

Output Control of Three-Axis PMSG Wind Turbine Considering Torsional Vibration Using H Infinity Control

Energies, 2020
Due to changes in wind, the torque obtained from the wind turbine always fluctuates. Here, the wind turbine and the rotor of the generator are connected by a shaft that is one elastic body, and each rotating body has different inertia.
Kosuke Takahashi, Nyam Jargalsaikhan, Shriram Rangarajan, Ashraf Mohamed Hemeida, Hiroshi Takahashi, Tomonobu Senjyu   +5 more
doaj   +1 more source

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

Advanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu, Xiaofeng Zheng, Shaoxia Zhang, Long Xu, Meng Liu, Jeremy Baribeault St‐Germain, Yue Zhao   +6 more
wiley   +1 more source

Reducing Undesirable Vibration of Rotating Payload Connected to Spacecraft Using Magnetic Bearing

Aerospace
The control accuracy and stability requirements for rotating payloads in remote sensing satellites are becoming increasingly higher. Typically, rotating payloads such as cameras are connected to the satellite body through mechanical bearings.
Zhengfeng Bai, Yingqiang Deng, Jingbo Pan   +2 more
doaj   +1 more source

Dynamics simulation of mechanical gearbox vibration

MATEC Web of Conferences, 2018
This paper focuses on creating a virtual model of mechanical gearbox used in medium-sized terrain vehicle using MSC.Adams software. This software is regarded as the most common and effective tool to simulate the gearbox as multibody system and to record ...
Furch Jan, Tran Cao Vu
doaj   +1 more source