Results 11 to 20 of about 858,761 (200)

Damping System Designs using Nonlinear Frequency Analysis Approach [PDF]

open access: yes, 2012
The main purpose of this thesis focuses on the investigation of the frequency domain analysis and design approaches for nonlinear damping systems. With the development of modern mechanical and civil engineering structures, the vibration control has ...
Guo, Pengfei
core   +6 more sources

An earthquake response spectrum method for linear light secondary substructures [PDF]

open access: yes, 2007
YesEarthquake response spectrum is the most popular tool in the seismic analysis and design of structures. In the case of combined primary-secondary (P-S) systems, the response of the supporting P substructure is generally evaluated without considering ...
Palmeri, Alessandro, Muscolino, G.
core   +4 more sources

Computation of Rayleigh Damping Coefficients for the Seismic Analysis of a Hydro-Powerhouse

open access: yesShock and Vibration, 2017
The mass and stiffness of the upper and lower structures of a powerhouse are different. As such, the first two vibration modes mostly indicate the dynamic characteristics of the upper structure, and the precise seismic response of a powerhouse is ...
Zhiqiang Song, Chenhui Su
doaj   +1 more source

Study of the Movement Dynamics of a Beet Leaves Harvester

open access: yesApplied Sciences, 2023
High-quality cutting of beet heads during harvesting reduces the loss of sugar-bearing upper parts of root crops. One of the ways to ensure high quality cutting is to scientifically substantiate the parameters of the machine that harvests the sugar beet ...
Simone Pascuzzi   +5 more
doaj   +1 more source

Low frequency damping of metal panels in ambient Air [PDF]

open access: yes, 2008
Mathematical models of structural dynamics are widely used and applied in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not ...
Paul Cunningham (1251771)   +8 more
core   +1 more source

On the interaction of exponential non-viscous damping with symmetric nonlinearities [PDF]

open access: yes, 2008
This paper studies the interaction between non-viscous damping and nonlinearities for nonlinear oscillators with reflection symmetry. The non-viscous damping function is an exponential damping model which adds a decaying memory property to the damping ...
Wagg, DJ   +6 more
core   +1 more source

A Decentralized Control With Adaptive Virtual Inertia and Damping Combination for Islanded Cascaded-Type VSG Systems

open access: yesIEEE Access, 2023
With the increase of distributed generations, the problems related to lack of inertia and damping support for cascaded-type power networks are becoming more and more prominent. This may lead to oscillation and even system instability.
Lang Li, Ke Zhou, Peng Tian
doaj   +1 more source

Investigation of Damping Coefficient For Magnetorheological Elastomer [PDF]

open access: yesMATEC Web of Conferences, 2018
Magnetorheological elastomer (MRE) is a smart material where its stiffness vary with presence of magnetic field.These special properties lead to various application as mechanical devise such as damper. Damping coefficient is criteria that need to consider while designing the device.
Hadzir M.N.Hazwan   +3 more
openaire   +2 more sources

Longitudinally Vibrating Elastic Rods with Locally and Non-Locally Reacting Viscous Dampers

open access: yesShock and Vibration, 2005
Eigencharacteristics of a longitudinally vibrating elastic rod with locally and non-locally reacting damping are analyzed. The rod is considered as a continuous system and complex eigenfrequencies are determined as solution of a characteristic equation ...
Şefaatdin Yüksel, Uğur Dalli
doaj   +1 more source

Investigation of Lumped-Mass Method on Coupled Torsional-longitudinal Vibrations for a Marine Propulsion Shaft with Impact Factors

open access: yesJournal of Marine Science and Engineering, 2019
Severe vibrations of the marine propulsion shaft can evidently affect the dynamical response of the propulsion system and degrade the performance of a ship.
Qianwen Huang, Haiyun Liu, Jiyin Cao
doaj   +1 more source

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