Results 31 to 40 of about 10,612 (301)
Jixie chuandong, 2022 The rotor shaft vibration of the helicopter transmission system is an important factor affecting its operational reliability. In order to improve the safety margin of torsional vibration of the rotor shaft system of a coaxial counter-rotating double ...
De Ni +4 more
doaj
Free vibration of thin-walled composite box beams
, 2008 Free vibration of a thin-walled laminated composite beam is studied. A general analytical model applicable to the dynamic behavior of a thin-walled composite box section is developed.
Lee, Jaehong, Vo, Thuc
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Jixie chuandong, 2021 This study attempts to solve the problems such as low efficiency and relatively small range due to the constraints of device and monotony of vibration in ultrasonic assisted rolling of gears.
Jinhao Gao +3 more
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Semi-active control of crankshaft skyhook based on magnetorheological torsional damper
Frontiers in Materials, 2022 The purpose of this study was to solve the problem that the damping of rubber or silicone oil torsional dampers used in crankshafts is not adjustable and cannot effectively control torsional vibration at different resonant frequencies.
Wei He +7 more
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Torsional vibration analysis of automotive drivelines [PDF]
, 1997 One of the most important source of noise and vibrations associated with vehicles is the vibration of driveline systems. Such phenomena are subjectively associated with customer complaints.
Rabeih, El-Adl Mohammed Aly
core
Advanced 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
Jixie qiangdu, 2022 In order to study the torsional vibration problem of the transmission system of a front-rear-drive MPV model, a 21-degree-of-freedom transmission system torsional vibration equivalent model was established based on AMEsim software, and the torsional ...
LIU Fang +3 more
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Active Control of Drive Chain Torsional Vibration for DFIG-Based Wind Turbine
Energies, 2019 Due to the fast electric control of the doubly-fed induction generator (DFIG) when experiencing power grid disturbance or turbulent wind, the flexible drive chain of the wind turbine (WT) generates long-term torsional vibration, which shortens the ...
Zhongyi Li +4 more
doaj +1 more source
Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
Analysis of the effects of torsional impact tools on drill string stick–slip vibration
Energy Exploration & ExploitationTorsional impactor is widely used in deep and ultra-deep wells because it can suppress stick–slip vibration and increase ROP. As the direct factor affecting torsional impactor effect, it's working parameters study is still not sufficient.
Chaoyi She +5 more
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