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Standard

Laboratory Measurement of the Composite Vibration Damping Properties of Materials on a Supporting Steel Bar

2019-01-17
WIP
J1637
This SAE Recommended Practice describes a laboratory test procedure for measuring the vibration damping performance of a system consisting of a damping material bonded to a vibrating cantilevered steel bar. The bar is often called the Oberst bar (named after Dr. H. Oberst) and the test method is often called the Oberst Bar Test Method. Materials for damping treatments may include homogeneous materials, nonhomogeneous materials, or a combination of homogeneous, nonhomogeneous, and/or inelastic (such as aluminum foil) materials. These materials are commonly installed in transportation systems such as ground vehicles, marine products, and aircraft to reduce vibration at resonance, and thus reduce the noise radiation from the vibrating surface. However, the test method described herein was developed to rank order materials used in PASSENGER VEHICLE APPLICATIONS with steel sheet metal and may not be fully applicable to other situations.
Standard

Laboratory Measurement of the Composite Vibration Damping Properties of Materials on a Supporting Steel Bar

2013-06-18
CURRENT
J1637_201306
This SAE Recommended Practice describes a laboratory test procedure for measuring the vibration damping performance of a system consisting of a damping material bonded to a vibrating cantilevered steel bar. The bar is often called the Oberst bar (named after Dr. H. Oberst) and the test method is often called the Oberst Bar Test Method. Materials for damping treatments may include homogeneous materials, nonhomogeneous materials, or a combination of homogeneous, nonhomogeneous, and/or inelastic (such as aluminum foil) materials. These materials are commonly installed in transportation systems such as ground vehicles, marine products, and aircraft to reduce vibration at resonance, and thus reduce the noise radiation from the vibrating surface. The test method described herein was developed to rank order materials for application on panels using general automotive steel but also may be applicable to other situations or conditions.
Standard

Standard Formats for Presenting Acoustical Data

2011-06-08
HISTORICAL
J2629_201106
SAE developed this document and associated spreadsheets at the request of automobile manufacturers to help compare products from multiple suppliers using standard data presentation formats. This document includes several preferred formats for presenting acoustical data on materials, components, systems, or vehicles. These formats cover the range of acoustical tests commonly conducted in the automotive industry. These tests follow SAE and ASTM test practices as well as vehicle specific test methods. For each test, the details of samples and test conditions can be entered into an applicable electronic spreadsheet together with the acoustical results data. These data are then linked to standard graphical display(s) for each test. All manufacturers and suppliers in this industry are encouraged to present data and results in these formats.
Standard

Standard Formats for Presenting Acoustical Data

2015-08-11
CURRENT
J2629_201508
SAE developed this document and associated spreadsheets at the request of automobile manufacturers to help compare products from multiple suppliers using standard data presentation formats. This document includes several preferred formats for presenting acoustical data on materials, components, systems, or vehicles. These formats cover the range of acoustical tests commonly conducted in the automotive industry. These tests follow SAE and ASTM test practices as well as vehicle specific test methods. For each test, the details of samples and test conditions can be entered into an applicable electronic spreadsheet together with the acoustical results data. These data are then linked to standard graphical display(s) for each test. All manufacturers and suppliers in this industry are encouraged to present data and results in these formats.
Standard

Vibration Damping Materials and Underbody Coatings

2014-06-06
CURRENT
J671_201406
The materials classified under this specification are: a Mastic vibration damping materials used to reduce the sound emanating from metal panels. b Mastic underbody coatings used to give protection and some vibration damping to motor vehicle underbodies, fenders, and other parts.
Standard

ACOUSTICAL AND THERMAL MATERIALS TEST PROCEDURE

1989-10-01
HISTORICAL
J1324_198910
This SAE Recommended Practice provides test methods for determining the characteristics of acoustical and thermal materials. Where applicable, methods of test developed by SAE and ASTM have been referenced.
Standard

Test Method for Measuring the Relative Drapeability of Flexible Insulation Materials

1985-02-01
HISTORICAL
J1325_198502
This SAE Recommended Practice describes a method of determining the relative flexibility of padding and/or acoustical composites. The purpose of this testing method is to establish a means for measuring the three-dimensional drapeability of flexible insulation materials, such as automotive floor pan insulation composites.
Standard

Acoustical and Thermal Materials Test Procedure

2016-08-02
CURRENT
J1324_201608
This SAE Recommended Practice provides test methods for determining the characteristics of acoustical and thermal materials. Where applicable, methods of test developed by SAE and ASTM have been referenced.
Standard

Test Method for Measuring the Relative Drapeability of Flexible Insulation Materials

1994-02-01
HISTORICAL
J1325_199402
This SAE Recommended Practice describes a method of determining the relative flexibility of padding and/or acoustical composites. The purpose of this testing method is to establish a means for measuring the three-dimensional drapeability of flexible insulation materials, such as automotive floor pan insulation composites.
Standard

Compression and Recovery of Insulation Paddings

1994-06-01
HISTORICAL
J1352_199406
This test method is applicable for determining the relative compression and recovery of fibrous insulation padding materials. The purpose of this testing method is to establish a means of measuring the ability of fibrous insulation materials to resist compression and recover after being compressed, dry or wet. It should be noted that there are two test methods for each dry and wet test. Two methods have been found necessary for different loading applications, and also due to large variation in surface density of the padding materials. The results of these two test methods cannot be correlated to each other. The material specification should indicate which test is necessary for each application.
Standard

Compression and Recovery of Insulation Paddings

2005-01-19
HISTORICAL
J1352_200501
This test method is applicable for determining the relative compression and recovery of fibrous insulation padding materials. The purpose of this testing method is to establish a means of measuring the ability of fibrous insulation materials to resist compression and recover after being compressed, dry or wet. It should be noted that there are two test methods for each dry and wet test. Two methods have been found necessary for different loading applications, and also due to large variation in surface density of the padding materials. The results of these two test methods cannot be correlated to each other. The material specification should indicate which test is necessary for each application.
Standard

Laboratory Measurement of Random Incidence Sound Absorption Tests Using a Small Reverberation Room

2020-03-04
CURRENT
J2883_202003
This SAE Recommended Practice describes a laboratory test procedure for measuring the random incidence sound absorption performance of a material or a part in a small size reverberation room by measuring decay rates. The absorption performance may include sound absorption coefficient of the test sample and or the amount of energy absorbed by the test sample. Materials for absorption treatments may include homogeneous materials, nonhomogeneous materials, or a combination of homogeneous, nonhomogeneous, and/or inelastic impervious materials. These materials are commonly installed in the mobility products and in the transportation systems such as ground vehicles, marine products, aircraft, and commercial industry (in industrial and consumer products) to reduce reverberant sound build-up and thus reduce the noise level in the environment by minimizing reflections off of hard surfaces.
Standard

Laboratory Measurement of Random Incidence Sound Absorption Tests Using a Small Reverberation Room

2015-04-30
HISTORICAL
J2883_201504
This SAE Recommended Practice describes a laboratory test procedure for measuring the random incidence sound absorption performance of a material or a part in a small size reverberation room by measuring decay rates. The absorption performance may include sound absorption coefficient of the test sample and or the amount of energy absorbed by the test sample. Materials for absorption treatments may include homogeneous materials, nonhomogeneous materials, or a combination of homogeneous, nonhomogeneous, and/or inelastic impervious materials. These materials are commonly installed in the mobility products and in the transportation systems such as ground vehicles, marine products, aircraft, and commercial industry (in industrial and consumer products) to reduce reverberant sound build-up and thus reduce the noise level in the environment by minimizing reflections off of hard surfaces.
Standard

Laboratory Measurement of the Acoustical Performance of Body Cavity Filler Materials

2017-08-11
CURRENT
J2846_201708
This SAE Recommended Practice describes a laboratory test procedure for measuring the acoustical performance of a system consisting of a body cavity filler material formed into a rectangular cross-section channel. Materials for this test may include both heat reactive and chemically reactive products, with or without a shelf to simulate a baffle in an application, or a combination of body cavity filler and aluminum foil to enhance the performance. These materials are commonly installed in transportation systems such as ground vehicles, and thus reduce the noise propagation through the rails, rockers, and pillar/posts. This document is intended to rank order the acoustical performance of materials for application on channels using general automotive steel, such that the effects of sealing of pinch welds in addition to the material could be easily evaluated.
Standard

Laboratory Measurement of the Acoustical Performance of Body Cavity Filler Materials

2019-10-14
WIP
J2846
This SAE Recommended Practice describes a laboratory test procedure for measuring the acoustical performance of a system consisting of a body cavity filler material formed into a rectangular cross-section channel. Materials for this test may include both heat reactive and chemically reactive products, with or without a shelf to simulate a baffle in an application, or a combination of body cavity filler and aluminum foil to enhance the performance. These materials are commonly installed in transportation systems such as ground vehicles, and thus reduce the noise propagation through the rails, rockers, and pillar/posts. This document is intended to rank order the acoustical performance of materials for application on channels using general automotive steel, such that the effects of sealing of pinch welds in addition to the material could be easily evaluated.
Standard

Laboratory Measurement of the Acoustical Performance of Body Cavity Filler Materials

2010-05-26
HISTORICAL
J2846_201005
This SAE Recommended Practice describes a laboratory test procedure for measuring the acoustical performance of a system consisting of a body cavity filler material formed into a rectangular cross-section channel. Materials for this test may include both heat reactive and chemically reactive products, with or without a shelf to simulate a baffle in an application, or a combination of body cavity filler and aluminum foil to enhance the performance. These materials are commonly installed in transportation systems such as ground vehicles, and thus reduce the noise propagation through the rails, rockers, and pillar/posts. This document is intended to rank order the acoustical performance of materials for application on channels using general automotive steel, such that the effects of sealing of pinch welds in addition to the material could be easily evaluated.
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