Results 41 to 50 of about 32,294 (305)

Preliminary instability-analysis of deepwater riser with fairings [PDF]

open access: yes, 2009
Instability of deepwater riser with fairings is investigated in this study. Despite the advantages over other devices for suppressing vortex-induced-vibration (VIV), fairings may be susceptible to flutter type instability.
Huang, Shan, Khorasanchi, Mahdi
core   +1 more source

Research on Doubly-Fed Wind Turbine Shaft System With Virtual Inertia for Torsional Vibration Analysis

open access: yes发电技术
ObjectivesShafting mathematical model of wind turbine is the basis of torsional vibration characteristics analysis. Shafting model is very important for the reliability of analysis results.
SUN Zhenglong, SAN Jiqiang
doaj   +1 more source

Dynamic optimization of tracked vehicle power train based on torsional vibration analysis

open access: yesAdvances in Mechanical Engineering, 2016
Aiming at the vehicle power train, system dynamic optimization is profoundly studied based on the system torsional vibration characteristics analysis. First, based on the concentrated mass method, the general torsional vibration model of vehicle power ...
Shengping Fu   +3 more
doaj   +1 more source

Experimental study of coupled shaft bending - blade umbrella mode vibration of a turbine rotor model

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper describes an experimental study on the characteristics of blade-shaft coupled bending vibration of a rotor system with a bladed disk. In a rotor with relatively long blades such as low-pressure steam turbines, the coupled vibration of shaft ...
Takeshi KUDO   +5 more
doaj   +1 more source

Field Telemetry of Blade-rotor Coupled Torsional Vibration at Matuura Power Station Number 1 Unit [PDF]

open access: yes, 1991
The quasi-modal reduction technique and finite element model (FEM) were used to construct an analytical model for the blade-rotor coupled torsional vibration of a steam turbine generator of the Matuura Power Station.
Isii, Kuniyoshi   +3 more
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Integration of Theoretical and Experimental Torsional Vibration Analysis in a Marine Propulsion System with Component Degradation

open access: yesApplied Sciences
This study investigates torsional vibration characteristics in an aged coastal car ferry propulsion system using theoretical calculations based on the Matrix method alongside experimental measurements.
Quang Dao Vuong   +2 more
doaj   +1 more source

Dilatant-Fluid Torsional Vibration Damper for a Four-Stroke Diesel Engine Crankshaft

open access: yesPolish Maritime Research, 2023
This paper presents a study of a viscous torsional vibration damper for a crankshaft of a four-stroke diesel engine. The reliable operation of a widely used silicone-type viscous damper depends on the ability of the silicone oil to absorb the energy of ...
Kozytskyi Sergiy, Kiriian Sergii
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Modeling and experimental analysis of cutting force in longitudinal–torsional ultrasonic-assisted milling of titanium

open access: yesAdvances in Mechanical Engineering, 2019
This study proposed a novel milling technology assisted by longitudinal–torsional compound ultrasonic vibration to overcome the difficulties in the processing of Ti-alloy heterogeneous surfaces or molding surfaces.
Xiaobo Wang   +3 more
doaj   +1 more source

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