Results 31 to 40 of about 1,478,908 (297)

Influence of Twin Carbide Structure on Friction and Wear Properties of G95Cr18 Stainless Bearing Steel

open access: yesFrontiers in Materials, 2019
G95Cr18 stainless bearing steel is used to manufacture rolling bearings widely used in aviation and navigation fields. Twin carbide structure often appears in G95Cr18 stainless bearing steel structure and affects its material properties.
Hao Guo   +6 more
doaj   +1 more source

Life prediction of heavy-load self-lubricating liners

open access: yesAdvances in Mechanical Engineering, 2021
To address the issues of long testing periods and small sample sizes while evaluating the service life of heavy-load self-lubricating liners, we propose a succinct method based on Monte Carlo simulation that is significantly fast and requires a small ...
Xiuhong Hao   +3 more
doaj   +1 more source

Effect of Ion Nitriding on Dry Sliding Tribological Properties of High-Temperature Bearing Steels [PDF]

open access: yesCailiao Baohu
To investigate the effects of ion nitriding on the friction and wear properties of high-temperature bearing steels,the tribological characteristics of 8Cr4Mo4V steel and G13Cr4Mo4Ni4V steel before and after ion nitriding were examined using a ...
LI Fuwei, YANG Chenxing, LI Yizhen, SONG Huahua, LIU Huihe, SHI Heyang, LI Mengnan, YANG Fenglin
doaj   +1 more source

Sound-Based Intelligent Detection of FOD in the Final Assembly of Rocket Tanks

open access: yesMachines, 2023
The traditional method of relying on human hearing to detect foreign object debris (FOD) events during rocket tank assembly processes has the limitation of strong reliance on humans and difficulty in establishing objective detection records.
Tantao Lin   +6 more
doaj   +1 more source

Life cycle wear mechanism of GF/PTFE self-lubricating composite

open access: yesCailiao gongcheng, 2023
The glass fiber fabric reinforced polytetrafluoroethylene (GF/PTFE) self-lubricating composite was investigated by using a high frequency and high load oscillating friction and wear tester MYB-500 to carry on a whole life wear test.
LIU Jian   +5 more
doaj   +1 more source

A Study on Bearing Dynamic Features under the Condition of Multiball–Cage Collision

open access: yesLubricants, 2022
Cage stability directly affects the dynamic performance of rolling bearing, which, in turn, affects the operating state of rotating equipment. The random collision between the rolling elements and the cage pocket is the main reason for cage instability ...
Shuaijun Ma   +4 more
doaj   +1 more source

Observations of acoustic emission in a hydrodynamic bearing [PDF]

open access: yes, 2009
Purpose - Numerous studies have been conducted in the field of acoustic emission (AE) technology applied to rotating machine fault diagnosis. Principally, most of the work to date has been focused on correlating AE activity to the defect condition on ...
Mba, David, Mirhadizadeh, S. A.
core   +1 more source

Research on the Lubrication State of the Contact Interface Under the Tilt and Skew State of the Roller of the Aviation Bearing

open access: yesLubricants
The lubrication behavior and mechanical characteristics of the main bearing area of an aero-engine main shaft bearing determine the reliability and life of the main shaft bearing.
Lina Zhou   +5 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

Analysis on the Dynamic Behavior of Space Shafting under Combined Load

open access: yesShock and Vibration
The space shafting is the core component of the momentum exchange attitude control actuator for spacecraft.The dynamic behavior of space shafting has an important impact on the performance of the actuators. Based on the dynamic theory of rolling bearing,
Yan Zhao   +5 more
doaj   +1 more source

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