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This SAE Standard 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.

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.

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.

This SAE Recommended Practice applies to various insulation materials used in vehicles for control of heat and noise and other applications.

This SAE Recommended Practice applies to various insulation materials used in vehicles for control of heat and noise and other applications.

This test applies to various insulation materials used in vehicles for control of heat and noise and other applications.

This SAE Recommended Practice provides test methods for determining the characteristics of acoustical and thermal materials. Where applicalbe, methods of test developed by SAE and ASTM have been referenced.

This test applies to various insulation materials used in vehicles for control of heat and noise and other applications.

This information report provides definitions of acoustical terms relating to sound insulation materials. Appropriate methods of test are being developed by SAE and where applicable, ASTM methods will be referenced.