scholarly journals An approach to the statistical energy analysis of complex systems

1983 ◽  
Vol 74 (S1) ◽  
pp. S68-S69
Author(s):  
Richard G. DeJong
Keyword(s):  
Complex Systems ◽  
Energy Analysis ◽  
Statistical Energy Analysis

Statistical Energy Analysis of Vibrating Systems

1967 ◽  
Vol 89 (4) ◽  
pp. 626-632 ◽  
Author(s):  
Eric E. Ungar
Keyword(s):  
Complex Systems ◽  
Energy Analysis ◽  
Energy Approach ◽  
Analysis Approach ◽  
Statistical Energy Analysis ◽  
Random Vibrations ◽  
Vibration Problems ◽  
Energy Balances ◽  
Vibrating Systems

The “statistical energy analysis” approach provides a relatively simple means for understanding and estimating the significant properties of multimodal random vibrations of complex systems, since this approach permits one to treat complex vibration problems in terms of much simpler energy balances. This paper delineates the concepts and relations which form the basis for the statistical energy approach, indicates its range of validity, and illustrates some of its applications.

A modal impedance-based statistical energy analysis for vibro-acoustic analysis of complex systems having structural uncertainty

2018 ◽  
Vol 233 (6) ◽  
pp. 1972-1989
Author(s):  
Abdullah Seçgin ◽  
Murat Kara ◽  
Altay Ozankan
Keyword(s):  
Complex Systems ◽  
High Frequency ◽  
Energy Analysis ◽  
Acoustic Analysis ◽  
Composite Plates ◽  
Structural Uncertainty ◽  
Statistical Energy Analysis ◽  
Complex Structural ◽  
Point Line ◽  
Dimension Reducing

A modal impedance-based statistical energy analysis for point, line, and area connected complex structural-acoustic systems is introduced. The proposed methodology is applied to perform mid- and high-frequency vibro-acoustic analysis of a cabinet model. The cabinet is composed of several composite plates with local mass variability simulating structural uncertainty, isotropic beams, and an acoustic enclosure. The method uses point mobilities, which are determined using modal parameters obtained by finite element method, to define line and area mobilities via dimension reducing principle. The methodology presented here is successfully verified by several numerical and experimental Monte Carlo computations. With this study, conventional statistical energy analysis is improved for mid-frequency vibro-acoustic analysis of complex systems.

Experimental and Statistical Energy Analysis of the Structure-borne Noise in a Helicopter Cabin

2017 ◽  
Vol 10 (6) ◽  
pp. 323
Author(s):  
Raffaella Di Sante ◽  
Marcello Vanali ◽  
Elisabetta Manconi ◽  
Alessandro Perazzolo
Keyword(s):  
Energy Analysis ◽  
Statistical Energy Analysis

Power Flow and Energy Sharing between an Oscillator and a Continuous Receiver Structure

2011 ◽  
Vol 189-193 ◽  
pp. 1914-1917
Author(s):  
Lin Ji
Keyword(s):  
High Frequency ◽  
Power Flow ◽  
Energy Analysis ◽  
Statistical Energy Analysis ◽  
Coupled Subsystems ◽  
Modal Density ◽  
Vibration Problems ◽  
Energy Sharing ◽  
High Modal Density ◽  
Vibration Modeling

A key assumption of conventional Statistical Energy Analysis (SEA) theory is that, for two coupled subsystems, the transmitted power from one to another is proportional to the energy differences between the mode pairs of the two subsystems. Previous research has shown that such an assumption remains valid if each individual subsystem is of high modal density. This thus limits the successful applications of SEA theory mostly to the regime of high frequency vibration modeling. This paper argues that, under certain coupling conditions, conventional SEA can be extended to solve the mid-frequency vibration problems where systems may consist of both mode-dense and mode-spare subsystems, e.g. ribbed-plates.

scholarly journals Ergodic billiard and statistical energy analysis

Wave Motion ◽  
2019 ◽  
Vol 87 ◽  
pp. 166-178 ◽  
Author(s):  
H. Li ◽  
N. Totaro ◽  
L. Maxit ◽  
A. Le Bot
Keyword(s):  
Energy Analysis ◽  
Statistical Energy Analysis
Sign in / Sign up

Export Citation Format

Share Document