Results 81 to 90 of about 6,393 (301)

标准滚刀滚切变位直齿轮的刀架角计算

open access: yesJixie chuandong, 2010
Aiming at the adjustment of tool post angle in the process of spur gear hobbing,the model of the hob rolling spur gear with addendum modification is established,and the influence of the angle on the tooth profile and tooth thickness is calculated by ...
陈琰, 钱志良
doaj  

Individual movement modeling expands the power of migratory species observations: North Atlantic right whale case study

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Understanding a population's distribution depends on observing the presence and movement of individuals throughout their range. For highly mobile marine species, these observations typically rely on high effort monitoring programs. Tracking enough individuals to understand trends in movement behavior is not always logistically feasible, and ...
Abigail M. Kreuser   +3 more
wiley   +1 more source

Research on the Dynamic Response of a Cracked-Spur Gear System with Parameter Uncertainty

open access: yesMachines
In this paper, the time-varying mesh stiffness (TVMS) of a gear is meticulously derived using the potential energy method (PEM) and an analytical expression for it is obtained.
Ping Fang, Yang Yang, Jin Zeng
doaj   +1 more source

Effect of Variations in the Ring Thickness on the Dynamic Performance of the Bimetal Gears

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study used a six‐degrees‐of‐freedom dynamic model to analyze the dynamic response of bimetal spur gears. Aluminum alloy forms the core of the bimetal gears, and a uniform‐thickness steel ring surrounds the teeth. Gear mesh stiffness of bimetal gears and the transmission error have been assessed using a numerical approach based on finite ...
Bikramjit Singh   +2 more
wiley   +1 more source

The Analgesic Effect of Extended Reality (XR) on Acute and Postoperative Pain in Children: A Systematic Review and Meta‐Analysis

open access: yesPediatric Anesthesia, EarlyView.
ABSTRACT Background Acute and postoperative pain in children is often undertreated, with effects on patient comfort and postoperative recovery. Extended reality (XR) interventions offer non‐pharmacological pain management by distracting patients from discomfort.
Louise Meulenkamp‐Yilmaz   +5 more
wiley   +1 more source

车齿齿形分析

open access: yesJixie chuandong, 2014
Skiving gear profiles are generated by the blades of the skiving cutter under two degrees of freedom relative movements between the gear and the skiving cutter.
毛世民
doaj  

Investigation into the tribodynamics of spur gear pairs considering pitch deviations and lubrication

open access: yesFriction
Pitch deviation, a type of longwave deviation, has been demonstrated to be a significant contributor to noise generation in the drive trains of motor vehicles operating at relatively high speeds. To date, numerous studies have investigated the effects of
Lintao Duan   +8 more
doaj   +1 more source

Education in a Changing Climate: A Systematic Review for Low and Middle‐Income Countries (LMICs)

open access: yesSustainable Development, EarlyView.
ABSTRACT Climate change is a major global challenge that affects many aspects of human life and hinders progress on the United Nations (UN) Sustainable Development Goals (SDGs). One area that has not received enough attention is its impact on children's education in low‐ and middle‐income countries (LMICs), which are especially vulnerable to ...
Afshan Ameer, Rami Ghannam
wiley   +1 more source

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