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Keywords: transmission loss
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Proceedings Papers

Revisiting and Improving Pipe Wall Transmission Loss Estimation for Control Valve Noise Prediction

Daniel Eilers, Allen Fagerlund
Proc. ASME. IMECE2023, Volume 1: Acoustics, Vibration, and Phononics, V001T01A014, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112615
https://doi.org/10.1115/IMECE2023-112615
... component will propagate within the downstream pipe. This internal acoustic field will couple to the pipe wall and cause it to vibrate, which in turn causes external radiation. The difference between the internal and external sound fields is called transmission loss. The estimation of the transmission loss...
View Paper titled, Revisiting and Improving Pipe Wall <span class="search-highlight">Transmission</span> <span class="search-highlight">Loss</span> Estimation for Control Valve Noise Prediction
Open the PDF for Revisiting and Improving Pipe Wall <span class="search-highlight">Transmission</span> <span class="search-highlight">Loss</span> Estimation for Control Valve Noise Prediction in another window
Topics: Acoustics, Density, Noise (Sound), Pipes, Valves, Flow (Dynamics), Aerodynamic noise, Design, Engineering standards, Errors
Proceedings Papers

CFD Analysis of the Acoustic and Mean Flow Performance of Simple Expansion Chamber Mufflers

J. M. Middelberg, T. J. Barber, S. S. Leong, K. P. Byrne, E. Leonardi
Proc. ASME. IMECE2004, Noise Control and Acoustics, 151-156, November 13–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2004-61371
https://doi.org/10.1115/IMECE2004-61371
... are recorded at two points, one in the inlet pipe and the other in the outlet pipe. These time histories are Fourier transformed and the transmission loss of the muffler is calculated. The mean flow model of the muffler uses the same geometry, but has a finer mesh and has a suitable inlet velocity applied...
View Paper titled, CFD Analysis of the Acoustic and Mean Flow Performance of Simple Expansion Chamber Mufflers
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Topics: Acoustics, Cloud chambers, Computational fluid dynamics, Flow (Dynamics), Silencers
Proceedings Papers

Computation of Acoustic Transmission Loss Through Doubly-Periodic 3D Elastic Panels

Saikat Dey, Joseph J. Shirron
Proc. ASME. IMECE2006, Noise Control and Acoustics, 19-23, November 5–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2006-13713
https://doi.org/10.1115/IMECE2006-13713
... 18 01 2008 We address acoustic transmission loss through doubly-periodic elastic panels separating two semi-infinite fluid half-spaces. This involves the computation of the transmitted and reflected sound fields due to an incident plane wave. The elastic panel may have complex internal...
View Paper titled, Computation of Acoustic <span class="search-highlight">Transmission</span> <span class="search-highlight">Loss</span> Through Doubly-Periodic 3D Elastic Panels
Open the PDF for Computation of Acoustic <span class="search-highlight">Transmission</span> <span class="search-highlight">Loss</span> Through Doubly-Periodic 3D Elastic Panels in another window
Topics: Acoustics, Computation, Honeycomb structures