Results 31 to 40 of about 44,630 (308)

Investigation on Tooth Surface Wear of Cycloid Drives Considering Tooth Profile Modifications

open access: yesLubricants, 2023
Cycloid drives are widely used in various mechanical systems due to their high reduction ratio, compact size, and high efficiency. Tooth surface wear is a major problem that affects the reliability and durability of cycloid drives.
Xuan Li   +4 more
doaj   +1 more source

Oxygen and ROS Delivery for Infected Wound Healing and Future Prospects

open access: yesAdvanced Healthcare Materials, EarlyView.
Bacterial infection is a major driver of delayed wound healing and postsurgical readmissions; with rising antibiotic resistance, solid peroxide–releasing biomaterials offer sustained delivery of ROS/O2 for antimicrobial control and microenvironmental modulation.
Ayden Watt   +7 more
wiley   +1 more source

Effect of Geometric Transmission Error on Load and Vibration Characteristic of Spiral Bevel Gear

open access: yesJixie chuandong, 2020
The tooth surface grid node coordinates are accurately calculated by the tooth surface equation. According to the density requirements of the grid nodes, the grid nodes are evenly divided, the tooth root transition curve mesh is encrypted, and the finite
Bohui Yang   +3 more
doaj  

TEHL analysis of VH-CATT cylindrical gear transmission in elliptical contact considering time-varying parameters

open access: yesAdvances in Mechanical Engineering, 2022
The lubrication characteristics of a cylindrical gear transmission with a variable hyperbolic circular-arc-tooth-trace (VH-CATT) are important theoretical bases for the tribology design of the gear and its fatigue life prediction.
Pei Luo   +5 more
doaj   +1 more source

A method for static and dynamic load analysis of standard and modified spur gears [PDF]

open access: yes, 1983
The mesh stiffness and dynamic load characteristics for several cases of the Normal Contract Ratio and High Contact ratio gearing. The considered contact ratios were grouped in the general range of 1.7,2.0, and 2.3.
Kasuba, R.
core   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

open access: yesAdvanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello   +7 more
wiley   +1 more source

Meshing theory and contact analysis of double enveloping hourglass worm drive with planar generatrix

open access: yesScientific Reports
The meshing and limit equations of worm drive usually have strong nonlinearities such as multiple solutions, solution nonexistence and equation singularity.
Quancheng Peng, Minghao Li
doaj   +1 more source

Experimental and Theoretical Study of Gear Dynamical Transmission Characteristic Considering Measured Manufacturing Errors

open access: yesShock and Vibration, 2018
In the research of gear transmission, the vibration and noise problem has received many concerns all the times. Scholars use tooth modification technique to improve the meshing state of gearings in order to reduce the vibration and noise. However, few of
Fang Guo, Zongde Fang
doaj   +1 more source

Simulation and Analysis on Tooth Meshing Ease-Off Surface of Gears Based on Polynomial Topology Modification

open access: yesXibei Gongye Daxue Xuebao, 2020
Based on the principles of common-generating conjugation mapping of pinion-rank-gear meshing, the constructing of ease-off surface has been done by means of the topology modification of the 4-order polynomial surface.

doaj   +1 more source

Optimal Vibration Suppression Modification Method for High-Speed Helical Gear Transmission of Battery Electric Vehicles under Full Working Conditions

open access: yesMachines, 2021
To improve the working performance of battery electric vehicle (BEV) high-speed helical gear transmission under full working conditions, combined with Tooth Contact Analysis (TCA) and Loaded Tooth Contact Analysis (LTCA), the vibration model of single ...
Jinfu Du   +3 more
doaj   +1 more source

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