海洋平台磁流变阻尼器半主动控制研究
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摘要
基于现代最优控制理论建立海洋平台磁流变 (MR)半主动控制系统的数学模型 ,采用白噪声过程通过滤波器来近似随机波浪力谱。以典型导管架平台为算例 ,对磁流变阻尼器进行了参数设计。分析了 MR阻尼器对海洋平台振动控制的有效性 ,仿真结果表明 ,采用磁流变阻尼器对海洋平台进行半主动控制能够有效的减小平台的动态响应。
The mathematical model of the semi active MR damping control for the offshore platforms and the semi active control algorithm based on the theory of modem optimal control are established. In order to satisfy the random optimal control conditions, An analog filter is used to approximately represent the wave force spectrum. The numerical example shows that the semi active MR damping control can reduce the vibration response of the offshore platform effectively.
引文
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