Results 31 to 40 of about 5,635 (264)
Analysis of Chaotic Features in Dry Gas Seal Friction State Using Acoustic Emission
LubricantsIn this study, a chaos theory-based characterization method is proposed to address the nonlinear behavior of acoustic emission (AE) signals during the startup and shutdown phases of dry gas seals. AE signals were collected through a controlled experiment
Shuai Zhang +4 more
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Features of test of air-fuel system of gas turbine engine [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2018 The article is devoted to the problem of ensuring the operability of rotary bearings of a gas turbine engine (GTE) with an air-fuel lubrication system.
V. N. Klimov +3 more
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Advances in Mechanical Engineering, 2022 In order to research the lubrication characteristics of various restrictors on the aerostatic bearing, an aerostatic bearing with the multi-hole integrated restrictor (MIR) was proposed in this paper.
Zhiwei Lu +3 more
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Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Advanced Head Disk Interface System Assisted by Gas PFPE Lubrication
Tribology Online, 2011 An advanced head disk interface (HDI) system assisted by gas perfluoropolyether (PFPE) lubrication is discussed in this paper. It is known that lubricant spins off at a high rotation speed and high temperature.
Hiroyuki Matsumoto, Hiroshi Tani
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Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
LubricantsWith the improvement of dry gas seal efficiency in high-parameter fields, the flow pattern of gas film lubrication is complicated. Based on gas lubrication theory, the Reynolds equation of compressible gas was established with a bidirectional T-groove ...
Lanxia Zhang +3 more
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Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Overlapping layers in a gas lubrication problem
Journal of Computational and Applied Mathematics, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aliu, E., Shepherd, J.J.
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Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source