针对近海风机在地震动及风荷载联合作用下的振动控制问题,提出了基于磁流变阻尼器及模糊控制算法的半主动振动控制模型,研究了阻尼控制力与其构件参数之间的关系,并通过Simuink仿真模型对近海风机在地震荷载和风荷载作用下的振动控制进行了分析。计算结果表明,采用磁流变阻尼器能够有效的减小风荷载和地震荷载作用下近海风机结构的加速度和位移反应。
According to the vibration control problems of the offshore wind turbines under seismic load and wind load, the mechanical model of magneto-rbeological (MR) damper and the relationship between the damping force and parameters of MR damper are presented here. The action principle of the fuzzy control algorithm in semi-active control is studied, and the Simulink simulation model is established, then the vibration control of the offshore wind turbines under the effects of seismic load and wind load is analyzed. For reducing the acceleration and displacement of the offshore wind turbines under the wind load and seismic load, the MR damper is used in the wind turbines. The result illustrates that this control method could effectively reduce the acceleration and displacement under the wind load and seismic load.