Results 61 to 70 of about 41,321 (274)

Effect of hydraulic oil temperature on the flow output quality of external gear pump

open access: yesJournal of Physics, Conference Series
To investigate the impact of hydraulic oil temperature on the performance of an external gear pump, we developed a numerical model to simulate the internal flow field of the pump.
Mingxue Li   +3 more
semanticscholar   +1 more source

A Multimodal Haptic Feedback Interface with Thin‐Film Compliant Mechanism

open access: yesAdvanced Science, EarlyView.
Multimodal haptic devices can trigger different mechanoreceptors, enabling richer haptic information. This study presents an electromagnetic multimodal haptic device capable of delivering indentation, stretch, and vibration stimuli. The device is enabled by a novel polymer thin‐film compliant mechanism that provides high translational compliance along ...
Jingjing Wan   +15 more
wiley   +1 more source

Three‐Dimensional Finite Element Modeling of a Viscous Fluid Flowing through an External Gear Pump

open access: yes, 2021
An external gear pump is a relatively simple and inexpensive pump, that is used in a variety of production systems. Numerous works have studied the external gear pump using numerical simulations; however, typically low-viscosity fluids and turbulent flow ...
V. G. D. Bie   +3 more
semanticscholar   +1 more source

Kresling Origami‐Based Metamaterial Robot for Dynamic Electromagnetic Control

open access: yesAdvanced Science, EarlyView.
A reconfigurable metamaterial system integrates deformable origami units with high‐permittivity ceramic plates. Pneumatic switching between structural states alters local resonance conditions, enabling dynamic radar stealth and adaptive microwave reflection for mobile communication.
Xinxi Zeng   +13 more
wiley   +1 more source

Unloading Groove Optimization and the Inner Flow-field Simulation Analysis of the Variable Displacement External Gear Pump

open access: yesJixie chuandong, 2015
A CFD model of a variable displacement external gear pump is established.The quantitative analysis method is applied to analyze characteristics of the pump inner flow field.The accuracy of the established model is verified by comparing the flux simulated
Gao Jiahe   +4 more
doaj  

A NUMERICAL MODEL FOR THE SIMULATION OF EXTERNAL GEAR PUMPS

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 2005
External gear pumps are the most widely employed source of power in hydraulic applications, allowing good performance and low manufacturing costs. The present paper reports the description of a numerical model for the simulation of these kind of machines, developed by the authors. The model has been implemented using the software AMESim ® , introducing
CASOLI, Paolo   +2 more
openaire   +2 more sources

High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy

open access: yesAdvanced Science, EarlyView.
A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Shuai Ding   +9 more
wiley   +1 more source

外啮合齿轮泵立体CAD系统研究

open access: yesJixie chuandong, 2005
Improving"Computer + AutoCAD" mode,a new application software for external mesh gear pump is developed besed on unigraphics system.By the software,the new products of gear pump can be easily developed.And intelligently,virtually,serially of the product ...
李玉龙, 刘火昆, 徐强, 张红
doaj  

Output Ripple Difference and Following Lightweight Design of External Gear Pumps and Motors

open access: yesJixie chuandong, 2023
In order to clarify the different output mechanism and following ripple difference between external gear pump and motor, based on the reverse design method from performance to gear parameter and special involute feature without undercut, from the contact
Wang Hao, Song Anran, Li Yulong
doaj  

Self‐Powered All‐in‐One Wearable Bioelectronics Driven by Pneumatic Energy Buffering of Daily Footsteps

open access: yesAdvanced Science, EarlyView.
A pneumatic energy‐buffering strategy transforms transient and intermittent footsteps into quasi‐continuous electrical energy for a self‐powered wearable biosensing platform. The footwear‐integrated air‐pumping harvester, combined with the rationally designed power‐management system, powers a wearable ankle PPG device with reduced motion artifacts ...
Ji‐Seok Kim   +8 more
wiley   +1 more source

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