GB/T 45159.1-2024 Mechanical vibration and shock—Characterization of the dynamic mechanical properties of visco-elastic materials—Part 1:Principles and guidelines

Scope

This document establishes the basic principles for laboratory measurement methods and data collection and analysis methods of the dynamic mechanical properties (i.e., elastic modulus, shear modulus, bulk modulus, loss factor, and Poisson's ratio) of common isotropic viscoelastic materials for vibration isolators specified in GB/T 45159.2~GB/T 45159.5. This document also provides guidance for the rational selection of various components. This document is applicable to isotropic resilient materials commonly used in vibration isolator design to reduce: - The transmission of vibrations in the audible frequency range to structures and the resulting fluid-induced noise (airborne noise, structure-radiated noise, etc.); - The impact of low-frequency vibrations on the human body, or the damage to structures and equipment caused by severe low-frequency vibrations; - The energy transmission of shocks and noise.

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