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GB/T 45159.2-2024: Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 2:REsonance method
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| GB/T 45159.2-2024 | English | 354 |
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Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 2:REsonance method
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GB/T 45159.2-2024
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Basic data | Standard ID | GB/T 45159.2-2024 (GB/T45159.2-2024) | | Description (Translated English) | Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 2:REsonance method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Z32 | | Classification of International Standard | 17.160 | | Word Count Estimation | 18,117 | | Date of Issue | 2024-12-31 | | Date of Implementation | 2024-12-31 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45159.2-2024: Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 2:REsonance method
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ICS 17.160
CCSZ32
National Standard of the People's Republic of China
Mechanical vibration and shock Dynamic mechanics of viscoelastic materials
Characterization of properties Part 2.Resonance method
propertiesofvisco-elasticmaterials-Part 2.Resonancemethod
(ISO 18437-2.2005,IDT)
Released on 2024-12-31
2024-12-31 implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Measurement equipment (Figure 1) 3
4.1 Electric Vibrator 3
4.2 Accelerometer 3
4.3 Charge Amplifier 4
4.4 Test bench 4
4.5 Environmental Chamber 4
4.6 Dual Channel Spectrum Analyzer 5
4.7 Computer 5
5 Steps 5
5.1 Sample preparation and installation 5
5.2 Sample conditioning 5
5.3 Number of samples 6
5.4 Data Collection 6
5.5 Temperature Cycle 7
6 Results Analysis 7
6.1 Modulus and loss factor 7
6.2 Time-Temperature Superposition 8
6.3 Data Representation 9
6.4 Measurement Report 9
Appendix A (informative) Linear characteristics of resilient materials 10
Appendix B (Informative) Time-Temperature Superposition 11
Reference 12
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is Part 2 of GB/T 45159 "Characterization of dynamic mechanical properties of viscoelastic materials subject to mechanical vibration and shock".
GB/T 45159 has published the following parts.
--- Part 1.Principles and guidelines;
--- Part 2.Resonance method;
--- Part 3.Cantilever shear beam method.
This document is equivalent to ISO 18437-2.2005 "Mechanical vibration and shock - Characterization of dynamic mechanical properties of viscoelastic materials - Part 2
Division. Resonance Method.
The following minimal editorial changes were made to this document.
--- Incorporated the amendments to ISO 18437-2.2005/Amd1.2010, the clauses involved in these amendments have been adopted in its external
The side margins are marked with double vertical lines (‖).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Technical Committee for Standardization of Mechanical Vibration, Shock and Condition Monitoring (SAC/TC53).
This document was drafted by. Shanghai Institute of Materials Co., Ltd., Shanghai Jiaotong University, Shanghai Quality Supervision and Inspection Technology Research Institute, Zhengzhou
Mechanical Research Institute Co., Ltd., ShenDa (Shanghai) Technology Co., Ltd., Shanghai Aircraft Design and Research Institute of Commercial Aircraft Corporation of China,
Tongji University, Southwest Jiaotong University, Shanghai Puxin Technology Co., Ltd.
The main drafters of this document are. Xu Bin, Liu Yan, Rao Zhushi, Yu Zhengyue, Lu Xiaod, Ma Weiping, Xie Xiaolong, Li Tao, Wei Kai, Pang Jinxiang, Luo Yanyun,
Lei Zhenyu, Li Qiutong, Yuan Xianpu.
Introduction
GB/T 45159 provides three methods for measuring the elastic modulus and loss factor of viscoelastic materials, and two methods for measuring Poisson’s ratio.
The method provides unified regulations for users, including the operating principle, measuring device, measurement and data analysis, and is planned to consist of 6 parts.
--- Part 1.Principles and guidance. The purpose is to outline three methods for measuring the elastic modulus and loss factor of viscoelastic materials, and
Two methods for measuring Poisson's ratio are presented, along with the test setup, measurement range, and limitations of each method.
--- Part 2.Resonance method. The purpose is to provide unified technical regulations for users of the resonance method.
--- Part 3.Cantilever shear beam method. The purpose is to provide unified technical regulations for users of the cantilever shear beam method.
--- Part 4.Dynamic stiffness method. The purpose is to provide unified technical regulations for users of the dynamic stiffness method.
--- Part 5.Poisson's ratio based on comparison of measurement and finite element analysis.
The use of Poisson's ratio shall provide users with uniform technical regulations.
--- Part 6.Time-temperature superposition. The purpose is to provide unified technical regulations for users of time-temperature superposition.
Mechanical vibration and shock Dynamic mechanics of viscoelastic materials
Characterization of properties Part 2.Resonance method
1 Scope
This document specifies the resonance method for laboratory measurements of the dynamic mechanical properties of elastic materials for vibration isolators.
This document applies to systems that measure shock and vibration in the frequency range from a fraction of Hz to 20kHz.
This document applies to resilient materials commonly used in vibration isolator designs to reduce.
a) Vibration transmission and radiation noise of equipment, structure or vehicle (fluid radiation noise, air noise, structure radiation noise, etc.);
b) The impact of low-frequency vibration on the human body or the damage to structures and equipment caused by severe low-frequency vibration.
This document and ISO 18437-3 specify the measurement methods and data collection and analysis methods for.
---Design of vibration isolators;
---Selection of optimal resilience material;
--- Theoretical calculation of vibration transmissibility of vibration isolators;
---Information required for product development;
---Product information provided by manufacturers and suppliers;
---Product quality control.
The validity of this measurement method requires that the vibration characteristics of the isolator behave linearly. This also applies if the static load-deformation curve
It is a vibration isolation element that is nonlinear, but its dynamic characteristics appear to be approximately linear under given static preload conditions.
This measurement method measures multiple data curves at 20Hz~40Hz (the common frequency range is 0.3Hz~30Hz) and different test temperatures.
Line, using the principle of time-temperature superposition to translate multiple original curves to generate a line with a wider frequency band than the original curve (generally 10-3Hz~109Hz)
Dynamic mechanical properties curve.
Note. In this document, "dynamic mechanical properties" refers to basic elastic properties such as complex Young's modulus that vary with temperature and frequency, and also includes those that vary with static preload.
characteristic.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
ISO 472 Plastics-Vocabulary
Note. GB/T 2035-2008 Plastics terms and definitions (ISO 472.1999, IDT)
ring-Vocabulary)
Note. GB/T 2298-2010 Mechanical vibration, shock and condition monitoring vocabulary (ISO 2041.2009, IDT)
ISO 4664-1 Rubber, vulcanized or thermoplastic rubber - Determination of dynamic properties - Part 1.General
Note. GB/T 9870.1-2006 Determination of dynamic properties of vulcanized rubber or thermoplastic rubber Part 1.General (ISO 4664-1.2005, IDT)
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