摘要
以APU隔振器为研究对象,提出采用五参数分数导数建立橡胶隔振器本构模型。推导了含橡胶隔振器振动系统的非线性动力学有限元方程式。分析了隔振器结构参数变化对传递率特性的影响。研究结果表明:文中的数值计算方法能更好地预测含橡胶隔振器振动系统的动态特性。
A nonlinear dynamics constitutive model of rubber isolator is established by making use of five-parameter fractional derivative. The finite element formulation of vibration system with rubber iso- lator is derived. The transmissibility characteristics are study by changing the structure parameters of isolator. Results show that the dynamic properties of vibration system with rubber isolator can be predic- ted by the numerical calculation methods.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2014年第2期285-291,共7页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
橡胶隔振器
分数导数
黏弹性
有限元
动态特性
rubber isolator
fractional derivative
viscoelasticity
finite element
dynamic characteristics
