Results 11 to 20 of about 28,611,700 (297)

Statistical energy analysis of engineering structures [PDF]

open access: yes, 1988
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis examines the fundamental equations of the branch of linear oscillatory dynamics known as Statistical Energy Analysis (SEA).
Keane, Andrew John
core   +7 more sources

Vibration Control Using Vibration Energy Transmissibility of Two-Degree-of-Freedom System

open access: yesNihon Kikai Gakkai ronbunshu, 2023
This study focuses on the energy transmissibility, which is called coupling loss factor (CLF) in Statistical Energy Analysis (SEA) framework, for two degree of freedom vibration system.
Toru YAMAZAKI   +3 more
doaj   +1 more source

Interior Noise Reduction Method of Pantograph Areas for High-speed Trains Based on Active Jet Technology [PDF]

open access: yesJournal of Applied Fluid Mechanics
The interior noise caused by the pantograph area is greater than that caused by other areas, and the impact of this pantograph area becomes more significant as the speed of high-speed trains increases, especially above 350 km/h.
D. Liu   +5 more
doaj   +1 more source

Vibration Transmission across Seismically Damaged Beam-to-Column Junctions of Reinforced Concrete Using Statistical Energy Analysis

open access: yesVibration, 2023
To detect human survivors trapped in buildings after earthquakes by using structure-borne sound it is necessary to have knowledge of vibration transmission in collapsed and fragmented reinforced-concrete buildings.
Marios Filippoupolitis, Carl Hopkins
doaj   +1 more source

On the statistical energy analysis [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1976
The statistical energy analysis is based on the expression for the power flow between coupled dynamic systems, each consisting of a multiplicity of modes. Usually, the expression is derived by properly identifying the modes as mechanical oscillators and by simply generalizing the expression for the power flow between two coupled mechanical oscillators.
openaire   +1 more source

A study on structural SEA model construction by base excitation

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This paper describes a structure model construction for structural statistical energy analysis (SEA) using FEM. Identigying SEA parameter regardless of the excitation method is demanded effectively.
Katsuhiko KURODA, Shuhei NAMIKAWA
doaj   +1 more source

Recommendations concerning energy information model documentation, public access, and evaluation [PDF]

open access: yes, 1979
In this study we provide an analysis of the factors underlying Congressional concern regarding model documentation, policies for public access, and evaluation procedures of the Energy Information Administration (EIA) and its predecessor agencies; we also
Wood, D.O.   +3 more
core   +1 more source

Study on Interior Aerodynamic Noise Characteristics of the High-Speed Maglev Train in the Low Vacuum Tube

open access: yesApplied Sciences, 2022
As the next-generation high-speed transportation system, the low vacuum tube high-speed maglev system combines the tube with a certain degree of vacuum with the high-speed maglev train, which can realize high-speed operation under low aerodynamic ...
Jiali Liu   +3 more
doaj   +1 more source

Statistical analysis of wind energy in Chile

open access: yesRenewable Energy, 2011
Abstract Bearing in mind the current and pressing need for an update of the existing Chilean power supply system – which has been remarkably influenced by new requirements – the search for new energy supply sources has become a top priority. The wind resource, vis-a-vis its associated mature technology features and its apparent availability ...
Watts, David, Jara, Danilo
openaire   +4 more sources

Statistical energy analysis of nonlinear vibrating systems [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
Nonlinearities in practical systems can arise in contacts between components, possibly from friction or impacts. However, it is also known that quadratic and cubic nonlinearity can occur in the stiffness of structural elements undergoing large amplitude vibration, without the need for local contacts. Nonlinearity due purely to large amplitude vibration
Spelman, GM, Langley, RS
openaire   +2 more sources

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