Results 81 to 90 of about 36,916 (301)

Nonlinear Dynamic Analysis of a Spur Gear Pair System with Wear Considering the Meshing Position

open access: yesLubricants
In this paper, a nonlinear dynamic model of a parallel shaft gear system consisting of two involute spur gears is developed to investigate the coupling effect between the gradual surface wear of gear teeth over time and nonlinear dynamic characteristics.
Zhibo Geng   +5 more
doaj   +1 more source

Surface fatigue life of M50NiL and AISI 9310 spur gears and R C bars [PDF]

open access: yes
Spur gear endurance tests and rolling element surface fatigue tests were conducted to study vacuum induction melted, vacuum arc remelted (VIM-VAR) M50NiL steel for use as a gear steel in advanced aircraft applications, to determine its endurance ...
Bamberger, Eric N., Townsend, Dennis P.
core   +1 more source

Talent Management in SMEs: Unraveling the Role of Contextual Factors

open access: yesHuman Resource Development Quarterly, EarlyView.
ABSTRACT Employing a multiple case study analysis, this paper explores the contextual factors—internal, external, and relational—that affect small and medium‐sized enterprises (SMEs) in designing their approaches to talent management (TM). Results underscore the significance of two prominent internal variables—namely, organizational size and ownership ...
Franca Cantoni   +2 more
wiley   +1 more source

Kinematic precision of gear trains [PDF]

open access: yes
Kinematic precision is affected by errors which are the result of either intentional adjustments or accidental defects in manufacturing and assembly of gear trains. A method for the determination of kinematic precision of gear trains is described.
Coy, J. J.   +3 more
core   +1 more source

Predicting Major Depression Among Diverse Online Gamers: The Role of Internet Addiction and Spirituality

open access: yesJournal of Addictions &Offender Counseling, EarlyView.
ABSTRACT This study analyzed whether religious or spiritual affiliation and therapy enrollment protect against symptoms meeting Major Depressive Disorder criteria beyond demographic, Internet addiction, and described therapy enrollment. Findings illustrated one risk factor and one protective factor associated with experiencing symptoms that meet Major ...
Lindsay A. Lundeen, John R. McCall
wiley   +1 more source

Research of the Torsion Stiffness of Involute Gear Transmission

open access: yesJixie chuandong, 2017
The gear stiffness calculation has important significance for the study of noise and vibration of power transmission system. Based on the finite element calculation of the software Abaqus,the torsional mesh stiffness of spur gear with involute profile is
Zhou Xin   +3 more
doaj  

Dynamic Capacity and Surface Fatigue Life for Spur and Helical Gears [PDF]

open access: yes
A mathematical model for surface fatigue life of gear, pinion, or entire meshing gear train is given. The theory is based on a previous statistical approach for rolling-element bearings. Equations are presented which give the dynamic capacity of the gear
Coy, J. J.   +2 more
core   +1 more source

Clinical and demographic characteristics of adolescents, emerging adults, and young adults presenting to an emergency department following a suicide attempt

open access: yesJCPP Advances, EarlyView.
Abstract Introduction Suicide is a significant public health concern and the second leading cause of death in adolescents and young adults. This study sought to better understand differences in demographic and clinical characteristics of young people who attempted suicide during three phases of this developmental period: late adolescence (14–17 years),
Nicholas M. Brdar   +7 more
wiley   +1 more source

Study on the Steady-state Temperature Field of High Speed Spur Gear with Consideration of Elastohydrodynamic Lubrication

open access: yesJixie chuandong, 2017
Aiming at the real meshing state of high speed spur gear,the calculation mathematical model of line contact elastohydrodynamic lubrication is established,the model including Reynolds,elasticity and load balance equations etc.
Fang Te, Liu Shaojun
doaj  

Automated acoustic intensity measurements and the effect of gear tooth profile on noise [PDF]

open access: yes, 1987
Acoustic intensity measurements were made at NASA Lewis Research Center on a spur gear test apparatus. The measurements were obtained with the Robotic Acoustic Intensity Measurement System developed by Cleveland State University.
Atherton, William J.   +2 more
core   +2 more sources

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