Identification of the elastic and damping characteristics of carbon fiber-reinforced plastic based on a study of damping flexural vibrations of test specimens

Paimushin V. N.; Firsov V. A.; Gyunal I.; Shishkin V. M.

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Identification of the elastic and damping characteristics of carbon fiber-reinforced plastic based on a study of damping flexural vibrations of test specimens

机译：基于减振试样弯曲挠曲振动的研究，确定碳纤维增强塑料的弹性和阻尼特性

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摘要

A theoretical and experimental method for determining the elastic and damping characteristics of materials is proposed based on analysis of vibrograms of damping flexural vibrations of test specimens with different structures. It is shown that during tension-compression and shear of a carbon fiber-reinforced plastic made of Porcher 3692 carbon fabric and EDT-69NM polymer binder, its dynamic elastic modulus decreases considerably with increasing frequency of deformation in the range of 0-120 Hz. The amplitude dependences of the logarithmic vibration decrements of the carbon fiber-reinforced plastic are determined by minimizing the discrepancy between the experimental and calculated internal-damping parameters of the test specimens in tension-compression and shear.

机译：通过分析不同结构试样的阻尼弯曲振动的振动图，提出了一种确定材料弹性和阻尼特性的理论和实验方法。结果表明，在用Porcher 3692碳纤维和EDT-69NM聚合物粘结剂制成的碳纤维增强塑料的拉伸压缩过程中，其动态弹性模量在0-120 Hz范围内随变形频率的增加而显着降低。碳纤维增强塑料的对数振动减量的幅度相关性是通过最小化试样在拉伸压缩和剪切过程中的内部阻尼参数的实验值与计算值之间的差异来确定的。

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来源
《Journal of Applied Mechanics and Technical Physics》 |2016年第4期|720-730|共11页
作者
Paimushin V. N.; Firsov V. A.; Gyunal I.; Shishkin V. M.;
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作者单位

Kazan Fed Univ, Kazan 420008, Russia|Tupolev Kazan Natl Res Tech Univ, Kazan 420111, Russia;

Tupolev Kazan Natl Res Tech Univ, Kazan 420111, Russia;

Tupolev Kazan Natl Res Tech Univ, Kazan 420111, Russia;

Vyatka State Univ, Kirov 610000, Russia;

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正文语种 eng
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关键词
theoretical-experimental method; test specimen; internal damping; aerodynamic damping; objective function;

机译：理论实验方法;试样;内部阻尼;空气动力学阻尼;目标函数;

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1. Identification of the Elastic and Damping Characteristics of Soft Materials Based on the Analysis of Damped Flexural Vibrations of Test Specimens [J] . Paimushin V. N., Firsov V. A., Gyunal I., Mechanics of composite materials . 2016,第4期

机译：基于试件阻尼弯曲振动分析的软材料弹性阻尼特性识别
2. THEORETICAL-EXPERIMENTAL METHOD FOR DETERMINING THE PARAMETERS OF DAMPING BASED ON THE STUDY OF DAMPED FLEXURAL VIBRATIONS OF TEST SPECIMENS. 3. IDENTIFICATION OF THE CHARACTERISTICS OF INTERNAL DAMPING [J] . Paimushin V. N., Firsov V. A., Gyunal I., Mechanics of composite materials . 2014,第5期

机译：基于测试试样阻尼弯曲振动研究的确定阻尼参数的理论-实验方法。 3.识别内部阻尼特性
3. Identification of the Dynamic Elasticity Characteristics and Damping Properties of the OT-4 Titanium Alloy Based on Study of Damping Flexural Vibrations of the Test Specimens [J] . V. N. Paimushin, V. A. Firsov, V. M. Shishkin Journal of Machinery Manufacture and Reliability . 2019,第2期

机译：基于试样的阻尼弯曲振动研究，鉴定OT-4钛合金的动态弹性特性及阻尼性能
4. Theoretical-experimental method for determining the material damping properties based on the damped flexural vibrations of test samples [C] . V.N.Paimushin, V.A. Firsov, I. Gunal International Conference on Dynamics and Vibroacoustics of Machines . 2015

机译：基于试验样品阻尼弯曲振动确定材料阻尼性能的理论实验方法
5. Vibration-based, non-destructive damping matrix identification for damage detection in a sandwich composite beam. [D] . Ortiz Nieves, Marilu. 2002

机译：基于振动的无损阻尼矩阵识别，用于检测夹层复合梁中的损伤。
6. The Effect of the Carbon Fiber Content on the Flexural Strength of Polymer Concrete Testing Samples and the Comparison of Polymer Concrete and U-Shaped Steel Profile Damping [O] . Ondrej Petruška, Jozef Zajac, Vieroslav Molnár, 2019

机译：碳纤维含量对聚合物混凝土测试样品抗弯强度的影响以及聚合物混凝土和U型钢型材阻尼的比较
7. Theoretical-Experimental Method for Determining the Material Damping Properties Based on the Damped Flexural Vibrations of Test Samples [O] . Paimushin V.N., Firsov V.A., Günal I., 2015

机译：基于阻尼试样弯曲振动确定材料阻尼特性的理论实验方法
8. DAMPING OF FLEXURAL VIBRATIONS BY ALTERNATE VISCO-ELASTIC AND ELASTIC LAYERS [R] . Eric E. Ungar, Donald Ross, Edward M. Kerwin 1959

机译：用交替粘弹性和弹性层阻尼弯曲振动

Identification of the elastic and damping characteristics of carbon fiber-reinforced plastic based on a study of damping flexural vibrations of test specimens

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