Evaluation of Ground Vehicle Wind Noise Transmission through Glasses Using Statistical Energy Analysis

2013 ◽  
Vol 6 (3) ◽  
pp. 589-598 ◽  
Author(s):  
Patricia Manning ◽  
Jerome Manning ◽  
Chadwyck Musser ◽  
George Peng
Keyword(s):  
Energy Analysis ◽  
Statistical Energy Analysis ◽  
Wind Noise ◽  
Ground Vehicle ◽  
Noise Transmission

Modeling Airborne Noise Transmission in a Truck using Statistical Energy Analysis

2007 ◽  
Author(s):  
Arnaud Charpentier ◽  
Craig Birkett ◽  
Manuel Sánchez ◽  
Vivian Dias
Keyword(s):  
Energy Analysis ◽  
Statistical Energy Analysis ◽  
Noise Transmission ◽  
Airborne Noise

A study of engine noise transmission using statistical energy analysis

1998 ◽  
Vol 212 (3) ◽  
pp. 205-213 ◽  
Author(s):  
J. A. Steel
Keyword(s):  
Energy Analysis ◽  
Motor Vehicle ◽  
Power Input ◽  
Motor Vehicles ◽  
Statistical Energy Analysis ◽  
Engine Noise ◽  
Vibration Transmission ◽  
Resonant Transmission ◽  
Noise Transmission ◽  
Overall Performance

This work uses statistical energy analysis (SEA) to study engine noise transmission through a small passenger motor vehicle and in order to do this the sound and vibration power input is calculated. An aim of this work is to identify the causes of differences between measured and SEA predicted vibration transmission in motor vehicles. To allow this to be studied a relatively simple running condition and vehicle are chosen. Airborne and structural paths for sound and vibration transmission to a vehicle saloon are considered. Also, SEA is used to identify the relative importance of each structural and airborne power input in relation to the sound power that is transmitted to the vehicle saloon. This technique can then make it possible for the power input matrix to be greatly simplified. The most important power input to the small passenger vehicle used in this study is found to be at the floor mounts of the engine subframe. At high frequencies resonant transmission through the firewall (dash) can also be important. The results indicate the difficulty of estimating the power input, which is the main cause of differences between measured and predicted results (even for the restricted running condition considered here). The work also demonstrates that SEA can be very useful for identifying important transmission paths and predicting overall performance.

Statistical Energy Analysis of Wind Noise in High-Speed Train Cab

2012 ◽  
Vol 249-250 ◽  
pp. 307-313 ◽  
Author(s):  
Xiao Yan Yang ◽  
You Gang Xiao ◽  
Yu Shi
Keyword(s):  
High Speed ◽  
Power Flow ◽  
Energy Analysis ◽  
Simulation Method ◽  
Statistical Energy Analysis ◽  
High Speed Train ◽  
Wind Noise ◽  
Modal Density ◽  
Head Surface ◽  
Loss Factors

Statistical energy analysis(SEA) method has many advantages in analysis of high frequency, high modal density and complex dynamic systems. Dividing high-speed train cab into a series of sub-systems, the SEA model of high-speed train cab was established. The factors affecting the cab noise, such as modal density, damping loss factors, coupling loss factors, were gotten by theoretical analysis combined with experiments. Using large eddy simulation method, the fluctuation pressures from train head surface were calculated. Using fluctuation pressure as excitation source, wind noise spectra and power flow of sub-systems in cab were obtained, which provided the basis for the control of high-speed train cab noise.

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
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