Results 1 to 10 of about 1,118,331 (161)

Coupling strength assumption in statistical energy analysis. [PDF]

open access: yesProc Math Phys Eng Sci, 2017
This paper is a discussion of the hypothesis of weak coupling in statistical energy analysis (SEA). The examples of coupled oscillators and statistical ensembles of coupled plates excited by broadband random forces are discussed. In each case, a reference calculation is compared with the SEA calculation.
Lafont T, Totaro N, Le Bot A.
europepmc   +6 more sources

Poland’s Energy Security in Light of a Statistical Analysis

open access: yesComparative Economic Research, 2013
Energy security is a multi-faceted notion, being subject to evolution due to its changing character as an entity, a state, a process and a phenomenon. Discussion of the topic involves not only the question of energy security (treated both objectively and
Agnieszka Pach-Gurgul
doaj   +3 more sources

Study on the Effectiveness of Monte Carlo Filtering when Correcting Negative SEA Loss Factors [PDF]

open access: yesArchives of Acoustics, 2023
The power injection method (PIM) is an experimental method used to identify the statistical energy analysis (SEA) parameters (called loss factors – LFs) of a vibroacoustic system. By definition, LFs are positive real numbers.
Paweł Nieradka, Andrzej Dobrucki
doaj   +1 more source

Determinants of use of solar energy as an alternative means of energy by small and medium enterprises in Lagos State, Nigeria

open access: yesDiscover Sustainability, 2021
Frequent power outages and general electricity problems from the national grid in Nigeria have significantly increased in the last 5 years, and these are part of the reasons why many Small and Medium Enterprises in Lagos State, Nigeria find it difficult ...
Sylvester Anani Anaba   +1 more
doaj   +1 more source

Analysis by energy transmissibility using a simplified model considering idling vibration and engine shake

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In automotive development, it is important to balance various phenomena with a simplified vehicle body model in the initial design phase. Additionally, idling vibration, engine shake, and road noise are phenomena that affect vehicle ride comfort.
Ryota KAKEHASHI   +3 more
doaj   +1 more source

A Comparative Study of a Hybrid Experimental–Statistical Energy Analysis Model with Advanced Transfer Path Analysis for Analyzing Interior Noise of a Tiltrotor Aircraft

open access: yesApplied Sciences, 2023
The excessive noise present within an aircraft cabin during flight operations constitutes a notable origin of fatigue, stress, and communication impediments for both pilots and passengers.
Shahin Sohrabi   +5 more
doaj   +1 more source

Damping Determination by Half-Power Bandwidth Method for a Slightly Damped Rectangular Steel Plate in the Mid-Frequency Range

open access: yesActa Technica Jaurinensis, 2020
This paper presents a novel methodology for measuring the Damping Loss Factor (DLF) of a slightly damped plate in the mid-frequency range (400-1000 Hz) by the Half Power Bandwidth Method (HPBM).
Marcell Ferenc Treszkai   +2 more
doaj   +1 more source

A Modification of the Monte Carlo Filtering Approach for Correcting Negative SEA Loss Factors

open access: yesAcoustics, 2022
Monte Carlo Filtering (MCF) is one of the methods of Experimental Statistical Energy Analysis (E-SEA), which allows the correction of negative LFs (Loss Factors).
Paweł Nieradka, Andrzej Dobrucki
doaj   +1 more source

Predication and comprehensive control of self-noise of ship's sonar platform

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThis paper aims to solve the problem of the prediction and control of the bow sonar self-noise. MethodsA self-noise simulation model of the ship's sonar platform based on the entire ship is established by statistical energy analysis (SEA ...
Shuainan JIN   +4 more
doaj   +1 more source

The Estimation of Random Response of a Coupled Cylindrical-Conical Shell System Using Statistical Energy Analysis [PDF]

open access: yesEngineering and Technology Journal, 2011
A composite, coupled, thin cylindrical-conical shell system made of polyester resin reinforced by uniformly distributed, chopped, E-glass is analyzed using Statistical Energy Analysis. Response displacement estimate of the two subsystems are obtained due
Adnan Dawood Mohammed
doaj   +1 more source

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