Dynamic mechanical properties of architectural coated fabrics under different temperature and excitation frequency

Yingying Zhang; Meng Wu; Junhao Xu; Lanlan Zhang; Yi Zhou; Wei Ding

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Dynamic mechanical properties of architectural coated fabrics under different temperature and excitation frequency

机译：不同温度和励磁频率下建筑涂层织物的动态力学性能

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摘要

The dynamic thermo-mechanical analysis test is performed on the architectural coating fabric based on the dynamic thermo-mechanical analyzer (DMA). The effects of excitation frequency, constant temperature, and dynamic temperature on the dynamic mechanical properties of architectural membrane materials are discussed. Through analysis and discussion, the various rules of damping loss factor, loss modulus, and storage modulus of architectural membrane materials in the application temperature and frequency range are obtained. As the frequency of the external excitation force increases, the storage modulus, loss modulus, and loss factor all increase, while the influence of temperature is non-linear. Under the action of dynamic temperature and constant temperature, the difference between storage modulus and loss modulus is obvious, but the difference of loss factor is small. Due to the anisotropy of the polyester fiber substrate, the damping characteristics of the membrane material in the warp and weft yarns are different regardless of the effect of external excitation frequency or temperature. The discussion in this article provides a theoretical basis for further research on the damping characteristics of membrane materials and the vibration response of membrane structures.

机译：基于动态热机械分析仪（DMA），对建筑涂层织物进行了动态热机械分析测试。讨论了激励频率、恒温和动态温度对建筑膜材料动态力学性能的影响。通过分析讨论，得出了建筑膜材料在使用温度和频率范围内阻尼损耗因子、损耗模量和储能模量的变化规律。随着外部激励力频率的增加，储能模量、损耗模量和损耗因子都会增加，而温度的影响是非线性的。在动态温度和恒温作用下，储能模量和损耗模量的差异明显，但损耗因子的差异较小。由于聚酯纤维基体的各向异性，无论外部激励频率或温度的影响如何，膜材料在经纱和纬纱中的阻尼特性都是不同的。本文的讨论为进一步研究膜材料的阻尼特性和膜结构的振动响应提供了理论基础。

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来源
《Polymer Composites》 |2020年第12期|共11页
作者
Yingying Zhang; Meng Wu; Junhao Xu; Lanlan Zhang; Yi Zhou; Wei Ding;
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作者单位

China Univ Min &

Technol Key Lab Environm Disaster &

Struct Reliabil Civil Xuzhou Jiangsu Peoples R China;

China Univ Min &

Technol Key Lab Environm Disaster &

Struct Reliabil Civil Xuzhou Jiangsu Peoples R China;

China Univ Min &

Technol Key Lab Environm Disaster &

Struct Reliabil Civil Xuzhou Jiangsu Peoples R China;

Jiangsu Inst Architecture &

Technol Sch Architectural Engn Management Xuzhou Jiangsu Peoples R China;

Southwest Jiaotong Univ Sch Civil Engn Chengdu Sichuan Peoples R China;

China Univ Min &

Technol Key Lab Environm Disaster &

Struct Reliabil Civil Xuzhou Jiangsu Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类增强塑料、填充塑料;
关键词
architectural coated fabric; DMA; dynamic mechanical properties; frequency; temperature;

机译：建筑涂层面料;DMA;动态机械性能;频率;温度;

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Dynamic mechanical properties of architectural coated fabrics under different temperature and excitation frequency

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