Properties Tests and Mathematical Modeling of Viscoelastic Damper at Low Temperature With Fractional Order Derivative

Frontiers in Materials

Yaorong Dong¹  Xinghuai Huang²  Yeshou Xu³  Ying Luo³  Shiwei Zhao³ 

[1] Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, United States;;Key Laboratory of C&PC Structures of the Ministry of Education, Southeast University, Nanjing, China;

关键词: viscoelastic damper;    properties tests;    mathematical modeling;    temperature-frequency equivalent principle;    seven-parameter fractional derivative model;   

DOI  :  10.3389/fmats.2019.00194

来源: DOAJ

【 摘 要 】

In the present paper, several dynamic properties tests of the viscoelastic damper at −5°C are conducted under different frequencies and displacements to investigate the dynamic behavior of the viscoelastic damper at low temperature. The seven-parameter fractional derivative model is modified with the temperature-frequency equivalent principle and utilized to describe the dynamic properties of the viscoelastic damper. The 9050A and ZN22 viscoelastic materials are used to verify the modified seven-parameter fractional derivative model. The experimental and numerical results show that the viscoelastic damper has perfect energy dissipation capacity at low temperature, and the modified seven-parameter fractional derivative model can well capture the dynamic behavior of viscoelastic materials and dampers.

【 授权许可】

Unknown