Results 31 to 40 of about 9,089,683 (229)

Calculating the Load Distribution and Contact Stress of the Disposable Harmonic Drive under Full Load

open access: yesMachines, 2022
Mechanical equipment that will not be reused is defined as disposable machinery. Disposable harmonic drives (HDs) are commonly used in the field of aerospace and are sensitive to payloads.
Yuxin Zhang   +3 more
doaj   +1 more source

Taguchi Techniques as an Effective Simulation-Based Strategy in the Design of Numerical Simulations to Assess Contact Stress in Gerotor Pumps

open access: yesEnergies, 2022
The contact problem of a trochoidal gear is a drawback and a well-known performance indicator of a gerotor pump. Although numerical simulations aid in the evaluation of contact stress, the difficult task of determining geometrical parameters, operating ...
Pedro Javier Gamez-Montero   +1 more
doaj   +1 more source

Effective indenter radius and frame compliance in instrumented indentation testing using a spherical indenter [PDF]

open access: yes, 2009
We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter.
Kang, Ingeun   +3 more
core   +1 more source

Finite Element Analysis on Ultrasonic Drawing Process of Fine Titanium Wire

open access: yesMetals, 2020
Ultrasonic drawing is a new technology to reduce the cross-section of a metallic tube, wire or rod by pulling through vibrating dies. The addition of ultrasound is beneficial for reducing the drawing force and enhancing the surface finish of the drawn ...
Shen Liu   +3 more
doaj   +1 more source

Prediction of Contact and Lubrication Characteristics of Micro-textured Surface Under Thermal Line Contact EHL

open access: yesFrontiers in Mechanical Engineering, 2021
In this study, a method combining numerical surface generation technology and three-dimensional hot-line contact EHL is employed to evaluate the contact characteristics of micro-textured surfaces under high-load line contact.
Jiang Zhao   +7 more
doaj   +1 more source

Contact stress in helical bevel gears [PDF]

open access: yesFME Transactions, 2021
Helical bevel gears have inclined or twisted teeth on a conical surface and the common types are skew, spiral, zerol, and hypoid bevel gears. However, this study does not include hypoid bevel gears.
Osakue Edward E.   +2 more
doaj   +1 more source

Experimental characterization of wheel-rail contact patch evolution [PDF]

open access: yes, 2006
The contact area and pressure distribution in a wheel/rail contact is essential information required in any fatigue or wear calculations to determine design life, re-grinding, and maintenance schedules. As wheel or rail wear or surface damage takes place
Björklund, S.   +4 more
core   +1 more source

A Vibration Model of Ball Bearings with a Localized Defect Based on the Hertzian Contact Stress Distribution

open access: yes, 2018
To study the vibration mechanism of ball bearings with localized defects, a vibration model of a ball bearing based on the Hertzian contact stress distribution is proposed to predict the contact force and vibration response caused by a localized defect ...
Fanzhao Kong   +4 more
semanticscholar   +1 more source

Impact of different factors on contact stress of axle box bearing when considering axial load

open access: yes机车电传动, 2023
As the axle assembly relationship of variable gauge bogie is clearance fit, in which the axle box bearing bears greater axial load compared with the traditional bogie axle box bearing, it is necessary to consider the impact of axial load on bearing ...
LI Zhihua   +3 more
doaj  

A phase-field method for modeling cracks with frictional contact

open access: yes, 2019
We introduce a phase-field method for continuous modeling of cracks with frictional contacts. Compared with standard discrete methods for frictional contacts, the phase-field method has two attractive features: (1) it can represent arbitrary crack ...
Choo, Jinhyun, Fei, Fan
core   +2 more sources

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