涡轮机
结构工程
塔楼
离散化
空气动力学
土-结构相互作用
拉格朗日乘数
约束(计算机辅助设计)
约束算法
工程类
地质学
标识
DOI:10.1243/146441905x73691
摘要
In this paper, a multibody model of wind turbine towers with the consideration of soil—structure interaction (SSI) is proposed to investigate their dynamic responses to seismic excitations in time domain. Using joint beam elements, the elastic tower is discretized into many rigid bodies coupled elastically by constraint joints and springs. The SSI is represented by a frequency-independent discrete parameter model approximately. The governing motion equations are derived by the application of Lagrange formalism including Lagrange multipliers. To investigate the effects of SSI and the dynamic behaviour of wind turbine towers under aerodynamic loading and earthquake loading, the tower of a large wind turbine is modelled and simulated with recorded seismic excitations.
科研通智能强力驱动
Strongly Powered by AbleSci AI