噪声与振动控制2018，Vol.38Issue(3)：181-185,5.DOI:10.3969/j.issn.1006-1355.2018.03.035
基于温频效应的约束型垫高阻尼结构抗振性研究
Study on Vibration Resistance of Constraint Stand-off Layer Damping Structures based on Temperature-frequency Effects
易少强 1何世平 1王杰1
作者信息
- 1. 海军工程大学 动力工程学院,武汉 430033
- 折叠
摘要
Abstract
Considering the temperature and frequency dependences of viscoelastic damping materials and based on the constitutive model of the materials, the modal strain energy iteration method of ANSYS and MATLAB collaborative simulation is used to simulate the vibration resistance of constrained stand-off layer damping structures. The influences of temperature and thickness on the vibration characteristics of the constraint stand-off layer damping structures are investigated. The results show that there exists an optimal temperature domain which can cause the best vibration resistance effect for the constraint stand-off layer damping structure. Therefore, to ensure a good vibration and noise reduction effect, temperature of the structure should be within the optimum temperature range. With the increase of the thicknesses of the stand-off layer and the constraint layer, there exists the best thickness to make the moral loss factor of the structure reach the peak, and with the increase of the thickness of the damping layer, the amplitude of the increase of the structural modal loss factor becomes larger and smaller. Therefore, it is necessary to carry out the optimal design of the structure.关键词
振动与波/黏弹性阻尼材料/协同仿真/模态应变能迭代法/约束型垫高阻尼结构Key words
vibration and wave/viscoelastic damping material/collaborative simulation/modal strain energy iteration method/constraint stand-off layer damping structure分类
数理科学引用本文复制引用
易少强,何世平,王杰..基于温频效应的约束型垫高阻尼结构抗振性研究[J].噪声与振动控制,2018,38(3):181-185,5.
