Results 101 to 110 of about 56,791 (219)

Drag, lift and torque coefficients for ellipsoidal particles

, 2013
In this work, we want to verify the ability of the CFD code Ansys Fluent© to give an accurate prediction of hydrodynamic forces acting on non-spherical (Ellipsoids). We focus the present study only on the drag and lift forces and also on the pitching torque.
Khalij, Mohammed, Ouchene, R, Tanière, A, Arcen, B   +3 more
openaire   +1 more source

Maneuverable Multilegged Locomotion through Anisotropically Arranged Soft Backbones in a Single‐Actuator Modular Miniature Robot

Advanced Intelligent Systems, EarlyView.
A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman, Burak Arslan, Ömer Çağrı Ergin, Daniel M. Aukes, Onur Özcan   +4 more
wiley   +1 more source

Development of High Efficiency Dog Clutch with One-Way Mechanism for Stepped Automatic Transmissions

International Journal of Automotive Engineering, 2019
In order to reduce drag losses and a clutch actuator load, the new dog clutch system for stepped automatic transmission is developed. Transmitting torque is converted to the engaging force because rotating shaft and dog clutch are connected with the ...
Isamu Shiotsu, Hirofumi Tani, Masanobu Kimura, Yu Nozawa, Atsushi Honda, Motoki Tabuchi, Hirotsugu Yoshino, Kentaroh Kanzaki   +7 more
doaj   +1 more source

Sensitivity analysis of factors affecting torque and drag modelling

, 2014
As the modern day extended reached wells are getting longer and more complex, the torque and drag is one of the restraining aspects for achieving the target depth. Torque and drag becomes a precarious issue, for example it can be difficult to land the long completion string.
openaire   +2 more sources

Worm‐Inspired Soft Robots With Modular Outfit‐Changing for Intelligent Multienvironment Adaptation

Advanced Intelligent Systems, EarlyView.
This study proposes a worm‐inspired soft robot capable of locomotion across multiple environments through a modular “outfit‐changing” strategy. The robot integrates pneumatically actuated peristaltic segments with interchangeable external modules, enabling efficient motion on ground surfaces, within pipelines, through granular media, and underwater ...
Xiaomin Liu, Heng Wei, Zhengxin Guo, Zheng Liu, Yi Jin, Yunwei Zhao, Changyong Chase Cao   +6 more
wiley   +1 more source

Modelling of cup anemometry and dynamic overspeeding in average wind speed measurements [PDF]

Atmospheric Measurement Techniques
Cup anemometers measure average wind speed in the atmosphere and have been used for one and a half centuries by meteorologists. Within the last half century, cup anemometers have been used extensively in wind energy to measure wind resources and ...
T. F. Pedersen, J.-Å. Dahlberg
doaj   +1 more source

Effect of blade planform variation on the forward-flight performance of small-scale rotors [PDF]

An investigation was conducted in the Glenn L. Martin Wind Tunnel to determine the effect of blade planform variation on the forward-flight performance of four small-scale rotors.
Althoff, Susan L., Green, Michael D., Noonan, Kevin W., Samak, Dhananjay K.   +3 more
core   +1 more source

Acoustofluidic Patterning for Improved Microtissue Histology

Advanced NanoBiomed Research, EarlyView.
Microtissue histology is widely used to characterize microtissue phenotype and morphology. However, conventional microtissue histology workflows are inefficient and time‐consuming. This work introduces a novel embedding technique that uses acoustofluidics to improve the efficiency of microtissue histology and reduce the time required for data analysis.
Dhananjay V. Deshmukh, Emilie Vuille‐dit‐Bille, Saumitra Joshi, Nicola Gerber, Christine Fux, Annina Eichenberger, Epifania Bono, Markus Rimann, Sarah Heub, Daniel Migliozzi, Stephanie Boder‐Pasche, Gilles Weder, Jurg Dual, Mark W. Tibbitt   +13 more
wiley   +1 more source

Analysis of Drag Torque Characteristic of Hydro-viscous Clutch with Consideration of Cavitation Effect

Jixie chuandong, 2018
In order to accurately predict the internal flow field and drag torque characteristics of the hydro-viscous clutch,with the flow field of double circular groove clearance as the research object,based on the principle of hydrodynamics and the Newtonian ...
Sun Chunlian
doaj  

Torque and drag analysis

Summarization: Drilling through the subsurface is a complex operation and problems are almost guaranteed to occur. Therefore, understanding and anticipating drilling problems, understanding their causes and planning solutions are necessary for successfully reaching the target. The most prevalent drilling problems include pipe sticking, lost circulation,
Azeez Mustafa(http://users.isc.tuc.gr/~mazeez), Azeez Mustafa(http://users.isc.tuc.gr/~mazeez)   +1 more
openaire   +1 more source