Results 21 to 30 of about 1,643 (214)

New Methodologies Indicating Adhesive Wear in Load Step Tests on the Translatory Oscillation Tribometer

open access: yesLubricants, 2021
When looking in detail at analyses of the tribological load-carrying capacity of lubricants, it becomes apparent that an exclusive evaluation of the evolution of the coefficient of friction alone cannot provide any sufficient criteria for determining the
Gregor Patzer, Mathias Woydt
doaj   +1 more source

Evaluating Scuffing Failure in Dry Sliding Conditions of Monolayer Chromium Piston Ring/Bulk Grey Cast Iron Liner Interface

open access: yesTribology Online, 2020
This research reports the scuffing failure phenomenon of piston ring–cylinder liner in pilot state bench tests. Initially, microhardness evaluation of chromium sprayed piston rings of functionally graded Aluminium A390 piston was conducted using a ...
Syed Danish Fayaz, Mohammad Farooq Wani
doaj   +1 more source

Wear of TiAlCN Coating on HCR Gear

open access: yesLubricants, 2022
Wear of TiAlCN coatings deposited on HCR (High Contact Ratio) gears was studied by the Niemann test during which the tested gears were loaded up to the 12th load stage.
Pavol Švec   +4 more
doaj   +1 more source

Evaluation of the plasticity index as a scuffing criterion [PDF]

open access: yes, 1994
The plasticity index has often been invoked as an indicator of the most likely condition for scuffing of metals. The particular condition for initiating scuffing was thought to be 2% plastic strain in contacting asperities, which would lead to adhesion ...
Ludema, Kenneth C., Park, K.-B.
core   +1 more source

Effect of Gear Body Temperature on the Dynamic Characteristics of Spiral Bevel Gears

open access: yesLubricants
Thermal effect is an important cause of gear system engineering failure. Spiral bevel gears are widely used in helicopter transmissions, but scuffing often occurs during operation.
Xi-Qing Zheng   +2 more
doaj   +1 more source

Investigations on the Scuffing and Wear Characteristic Performance of an Oil Free Water-Based Lubricant for Gear Applications

open access: yesLubricants, 2021
In most gear drive applications mineral or synthetic oils are used as lubricants, which are made of fossil raw materials and are non-biodegradable. In applications located in critical environmental areas such as boats or harbors, eco-friendly lubricants ...
Nadine Sagraloff   +5 more
doaj   +1 more source

Numerical analysis of scuffing risk in involute spur gears based on the integral temperature criterion [PDF]

open access: yesFME Transactions
Gear scuffing is a major concern and a critical technical challenge in gear power transmission design. This paper reviews current research and practical approaches to understanding and preventing gear scuffing, drawing on both industrial experience ...
Bozca Mehmet   +3 more
doaj   +1 more source

A multi-perspective method for gear efficiency and contact analysis

open access: yesResults in Engineering, 2023
Modern gearing applications, in particular electrification, impose new challenges in many different fields of engineering and research. In specific, new demands are imposed on gears, including higher rotational speed, lower noise acceptance, and ...
Rikard Hjelm   +7 more
doaj   +1 more source

Biceps‐Augmented Reverse Remplissage for Filling of Reverse Hill‐Sachs Defects

open access: yesArthroscopy Techniques, EarlyView.
Abstract Reverse Hill‐Sachs lesions pose a complex challenge in the management of posterior shoulder dislocations. These lesions complicate surgical management as a result of their association with recurrent instability and further joint destruction.
Mohamed Gamal Morsy   +2 more
wiley   +1 more source

3D printed patient‐specific drill guide for percutaneous pedicle screw fixation in lumbosacral vertebrae in dogs: A cadaveric study and clinical case report

open access: yesVeterinary Surgery, EarlyView.
Abstract Objective To evaluate the feasibility, accuracy, and safety of percutaneous pedicle screw fixation (PPSF) in the canine lumbosacral junction using three‐dimensional (3D)‐printed patient‐specific drill guides (PSGs). Study design Cadaveric study and clinical case report.
Kyuhyun Yeom   +4 more
wiley   +1 more source

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