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.

中文翻译：

---

不同温度和激发频率下建筑涂层织物的动态力学性能

动态热力学分析测试是基于动态热力学分析仪（DMA）对建筑涂料进行的。讨论了激发频率，恒定温度和动态温度对建筑膜材料动态力学性能的影响。通过分析和讨论，得出了在应用温度和频率范围内，建筑膜材料的阻尼损耗因子，损耗模量和储能模量的各种规律。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增加，而温度的影响是非线性的。在动态温度和恒定温度的作用下，储能模量和损耗模量之间的差异是明显的，但是损耗因子的差异很小。由于聚酯纤维基材的各向异性，经纱和纬纱中膜材料的阻尼特性均不同，而不受外部激励频率或温度的影响。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。