Results 1 to 10 of about 944,594 (140)

The isogeometric free vibration and transient response of functionally graded piezoelectric curved beam with elastic restraints

open access: yesResults in Physics, 2018
This paper presents the natural vibration and transient response of functionally graded piezoelectric materials (FGPMs) curved beam with a numerical method.
Mingfei Chen   +6 more
doaj   +3 more sources

Optimal design of a series-type double-mass hysteretically damped dynamic vibration absorber based on the stability criterion

open access: yesMechanical Engineering Journal, 2021
In most dynamic vibration absorbers (DVAs) used in practical applications, polymeric materials that have both restoring capabilities and damping effects are used instead of coil springs as spring elements.
Toshihiko ASAMI, Keisuke YAMADA
doaj   +1 more source

Analytical and numerical study of vibration and transient heat conduction in a functionally graded pipe

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
Functionally graded material (FGM) is an advanced class of composite material. In FGM, the volume fraction of each constituent can be tailor-made across the thickness for desired applications.
Ziyi SU   +3 more
doaj   +1 more source

Application research on active disturbance rejection control algorithm and test of electro-hydraulic steering gear

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThe new type of electro-hydraulic steering gear with direct drive volume control is a typical system with large inertia and small damping.
Zongbin CHEN, Jian LIAO, Banghui LIU
doaj   +1 more source

Sampled-data polydyne: Feedforward input for high-speed and high-precision positioning control system which does not excite specified mechanical resonant modes

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
This paper proposed a sampled-data polydyne as feedforward input for a high-speed and high-precision positioning control system that does not excite specified mechanical resonant modes.
Takehiko EGUCHI
doaj   +1 more source

Study on the friction damping characteristics of bladed disk (Effect of the friction model on the transient response passing through resonance)

open access: yesNihon Kikai Gakkai ronbunshu, 2022
The vibration characteristics of a bladed disk with the continuous ring type structure have been studied extensively, and the vibration response analyses considering the friction damping between adjacent shrouds have been performed in the blade design ...
Yasutomo KANEKO   +2 more
doaj   +1 more source

An integrated approach of a field‐circuit coupling model and multi‐physics finite‐element simulation for analysing transient electromagnetic vibration of pump motors

open access: yesIET Electric Power Applications, 2022
We propose a method to investigate the generation mechanism of the transient vibration of a pump motor induced by electromagnetic (electromagnetic (EM)) forces.
Jin Zhao, Qing Zhang, Xiaohan Wei
doaj   +1 more source

Transient nonlinear vibration characterization of building materials in sequential impact scale experiments

open access: yesFrontiers in Built Environment, 2022
Characterizing standard building materials such as concrete is challenging primarily because of the broad range of constituent component sizes within the material itself.
James A. Bittner, John S. Popovics
doaj   +1 more source

Multiple Transient Extraction Algorithm and Its Application in Bearing Fault Diagnosis

open access: yesIEEE Access, 2021
Transient impulsive signal is usually related with the bearing or gear local defect. It is very difficult to extract those multi-transient features due to the non-stationary of the corresponding vibration signals of rotating machinery.
Jie Zhao   +5 more
doaj   +1 more source

A Numerical Study on the Transient Injection Characteristics of Gas Fuel Injection Devices for Direct-Injection Engines

open access: yesActuators, 2023
Natural gas has emerged as one of the preferred alternative fuels for vehicles owing to its advantages of abundant reserves, cleaner combustion and lower cost. At present, the gas supply methods for natural-gas engines are mainly port fuel injection (PFI)
Tianbo Wang   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy