Results 31 to 40 of about 55,557 (267)

A three-dimensional nonlinear finite element model for coupled vibration analysis of rotary steerable systems

open access: yesScientific Reports
Reliable operation of intelligent rotary steerable systems (RSSs) critically depends on the dynamic stability of the bottom-hole assembly (BHA), where high-frequency vibrations can lead to tool malfunction, accelerating structural fatigue, and degrade ...
Kun Shao   +6 more
doaj   +1 more source

Modeling and Control of the Vibration of Two Beams Coupled with Fluid and Active Links

open access: yesShock and Vibration, 2012
Investigated are modeling and control approaches for vibration analysis of two identical beams which are coupled with fluid and active mechanical links.
Zhiyi Zhang   +3 more
doaj   +1 more source

Substructure elimination method for vibration systems governed by a one-dimensional wave equation

open access: yesMechanical Engineering Journal, 2023
This paper presents a vibration analysis using the substructure elimination method for vibration systems governed by a one-dimensional wave equation. The utilization of a one-dimensional continuous body serves as a suitable approach for understanding the
Keisuke YAMADA, Jinchen JI
doaj   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

Consideration on analysis modeling of dynamic stability of a flexible cantilevered plate subjected to a parallel flow

open access: yesNihon Kikai Gakkai ronbunshu, 2016
The stability of a flexible cantilevered plate subjected to a parallel flow is investigated. As the flexible flat plates, the papers in a high speed printing machine, the thin plastic and metal films, the fluttering flag and the oscillating doom roof are
Katsuhisa FUJITA, Keiji MATSUMOTO
doaj   +1 more source

Longitudinal Changes in Adiposity After a Youth Sport‐Related Knee Injury: Informing Posttraumatic Osteoarthritis Prevention

open access: yesArthritis Care &Research, EarlyView.
Objective Youth who experience a sport‐related knee injury have elevated odds of becoming overweight or developing obesity in 3 to 10 years, compounding their risk for posttraumatic osteoarthritis (PTOA). To inform prevention strategies, this study compared patterns of adiposity change between youth with a sport‐related knee injury and uninjured youth ...
Justin M. Losciale   +6 more
wiley   +1 more source

Research on the influence of tire parameters on coupled brakeinduced vibration of telescopic landing gear with two wheels

open access: yesHangkong gongcheng jinzhan, 2023
Currently,the research on the low-frequency brake coupling vibration of aircraft landing gear mainly focuses on the analysis of the longitudinal single degree of freedom vibration characteristics of landing gear considering the influence of tire ...
FENG Guang   +4 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Study on vibration characteristics of the dike crossing pipeline based on EWT and CWT

open access: yesHeliyon
The dike crossing pipeline is an important part of urban water transmission and supply projects. Identifying effective vibration analysis methods to determine the primary vibration sources and coupling vibration characteristics of pipelines is crucial ...
Jinlin Huang, Ziyu Li, Jianwei Zhang
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

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