Lubrication and performance of high-speed rolling-element bearings [PDF]
Trends in aircraft engine operating speeds have dictated the need for rolling-element bearings capable of speeds to 3 million DN. A review of high-speed rolling-element bearing state-of-the-art performance and lubrication is presented. Through the use of
Coe, H. H. +2 more
core +1 more source
Fish Scales: A Multifunctional Biomaterial from Nature
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley +1 more source
Advanced gearbox technology [PDF]
An advanced 13,000 HP, counterrotating (CR) gearbox was designed and successfully tested to provide a technology base for future designs of geared propfan propulsion systems for both commercial and military aircraft.
Anderson, N. E. +3 more
core +1 more source
Research on gearbox temperature field image fault diagnosis method based on transfer learning and deep belief network. [PDF]
Sci Rep, 2023 Lu X, Li P.
europepmc +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li +4 more
wiley +1 more source
Study on the Oil Distribution and Churning Loss in the Rotation of a Planetary Gear Train
Jixie chuandongA splash lubrication simulation model of a planetary gear train was established based on the moving particle semi-implicit （MPS） method, and it was verified by experiments to explore the splash lubrication behavior of the planetary transmission.
Chen Huixiao +7 more
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An Empirical Model for the Churning Losses Prediction of Fluid Flow Analysis in Axial Piston Pumps. [PDF]
Micromachines (Basel), 2021 Li Y, Li Y, Chen X, Luo H, Zhang J.
europepmc +1 more source
Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer
Energy Science &Engineering, EarlyView.Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou +5 more
wiley +1 more source
Effect of cage design on characteristics of high-speed-jet-lubricated 35-millimeter-bore ball bearing [PDF]
Parametric tests were conducted with a 35 mm bore angular contact ball bearing with a double outer land guided cage. Provisions were made for jet lubrication and outer-ring cooling of the bearing.
Pinel, S. I. +2 more
core +1 more source
Convective heat transfer of the Taylor flow in a two-dimensional piston pump. [PDF]
PLoS One, 2022 Chang L, Li Z, Jia W, Li S, Ruan J.
europepmc +1 more source