Description and validation of a muffler insertion loss flow rig

Jonathan Chen; D. W. Herrin

Description and validation of a muffler insertion loss flow rig

Mechanical and Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The performance of mufflers and silencers is greatly influenced by flow in many instances. Most labs, however, quantify performance sans flow with the use of an impedance tube using the two-load or two-source method. Measurements with flow are considerably more difficult. In this work, a test fixture capable of measuring insertion loss with flow is described. The flow is generated by an electric blower followed by a silencer to reduce the flow generated noise. Two loudspeakers are mounted downstream of the silencer but upstream of the tested muffler. Initial qualification of the system is detailed by comparing the transmission loss, noise reduction, and insertion loss to predictions using one-dimensional plane wave models.

Original language	English
Title of host publication	INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering
Editors	Antonio Calvo-Manzano, Ana Delgado, Antonio Perez-Lopez, Jose Salvador Santiago
ISBN (Electronic)	9788487985317
State	Published - 2019
Event	48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID - Madrid, Spain Duration: Jun 16 2019 → Jun 19 2019

Publication series

Name	INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering

Conference

Conference	48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID
Country/Territory	Spain
City	Madrid
Period	6/16/19 → 6/19/19

Bibliographical note

Publisher Copyright:
© INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. All Rights Reserved.

Funding

The authors gratefully acknowledge the support from the University of Kentucky Vibro-Acoustics Consortium.

Funders	Funder number
University of Kentucky Vibro-Acoustics Consortium

Keywords

Flow-Induced Noise
Insertion Loss
Mufflers

ASJC Scopus subject areas

Acoustics and Ultrasonics

Cite this

Chen, J., & Herrin, D. W. (2019). Description and validation of a muffler insertion loss flow rig. In A. Calvo-Manzano, A. Delgado, A. Perez-Lopez, & J. S. Santiago (Eds.), INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering (INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering).

Chen, Jonathan ; Herrin, D. W. / Description and validation of a muffler insertion loss flow rig. INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. editor / Antonio Calvo-Manzano ; Ana Delgado ; Antonio Perez-Lopez ; Jose Salvador Santiago. 2019. (INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering).

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title = "Description and validation of a muffler insertion loss flow rig",

abstract = "The performance of mufflers and silencers is greatly influenced by flow in many instances. Most labs, however, quantify performance sans flow with the use of an impedance tube using the two-load or two-source method. Measurements with flow are considerably more difficult. In this work, a test fixture capable of measuring insertion loss with flow is described. The flow is generated by an electric blower followed by a silencer to reduce the flow generated noise. Two loudspeakers are mounted downstream of the silencer but upstream of the tested muffler. Initial qualification of the system is detailed by comparing the transmission loss, noise reduction, and insertion loss to predictions using one-dimensional plane wave models.",

keywords = "Flow-Induced Noise, Insertion Loss, Mufflers",

author = "Jonathan Chen and Herrin, {D. W.}",

note = "Publisher Copyright: {\textcopyright} INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. All Rights Reserved.; 48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID ; Conference date: 16-06-2019 Through 19-06-2019",

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language = "English",

series = "INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering",

editor = "Antonio Calvo-Manzano and Ana Delgado and Antonio Perez-Lopez and Santiago, {Jose Salvador}",

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Chen, J & Herrin, DW 2019, Description and validation of a muffler insertion loss flow rig. in A Calvo-Manzano, A Delgado, A Perez-Lopez & JS Santiago (eds), INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering, 48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID, Madrid, Spain, 6/16/19.

Description and validation of a muffler insertion loss flow rig. / Chen, Jonathan; Herrin, D. W.
INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. ed. / Antonio Calvo-Manzano; Ana Delgado; Antonio Perez-Lopez; Jose Salvador Santiago. 2019. (INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - The performance of mufflers and silencers is greatly influenced by flow in many instances. Most labs, however, quantify performance sans flow with the use of an impedance tube using the two-load or two-source method. Measurements with flow are considerably more difficult. In this work, a test fixture capable of measuring insertion loss with flow is described. The flow is generated by an electric blower followed by a silencer to reduce the flow generated noise. Two loudspeakers are mounted downstream of the silencer but upstream of the tested muffler. Initial qualification of the system is detailed by comparing the transmission loss, noise reduction, and insertion loss to predictions using one-dimensional plane wave models.

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Description and validation of a muffler insertion loss flow rig

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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