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首页> 外文会议>IEEE International Conference on Underwater System Technology: Theory and Applications >Semi-active control of tensioner for submerged vertical long cylindrical structure
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Semi-active control of tensioner for submerged vertical long cylindrical structure

机译：浸没式垂直长圆柱结构的张紧器半主动控制

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Long cylindrical structure (LCS) experiences vibrations induced by both cross-flows and structural instability. As the technology of LCS facing more structural safety challenges in deep-water conditions, an appropriate control mechanism to enhance the structural integrity, such as reduce the relative motion in between the LCS and the host platform is now high in demand. This paper studies the mathematical model of structural integration for magneto-rheological (MR) damper with an LCS system. Later, curve fitting method is utilized to determine the characteristic coefficients of MR damper to be used in the equation based on a pseudo-experimental data. Then, the structural integration is regarding as a two degree-of-freedom (2-DOF) system and the efficiency of different control schemes on the tensioner stroke is evaluated. The results indicate that the semi-active control mechanism provides improved performances compared with the passive control and can reduce the complexity and avoid the spillover phenomena inherent form the active control. The anticipated impacts are lead to an advancement of understanding in the controlled dynamics of LCS and extension the applicability of LCS to wider operational limits.
机译：长圆柱结构（LCS）经历由交叉流动和结构不稳定性引起的振动。随着LCS在深水条件下面临更多结构安全挑战的技术，适当的控制机制，以提高结构完整性，例如降低LC和主机平台之间的相对运动，现在是高的需求。本文用LCS系统研究了磁流变（MR）阻尼器结构集成的数学模型。稍后，利用曲线拟合方法来确定基于伪实验数据的等式中MR DAMPER的特征系数。然后，结构集成是关于两个自由度（2-DOF）系统，并评估张紧器行程上的不同控制方案的效率。结果表明，与无源控制相比，半主动控制机制提供了改进的性能，并且可以降低复杂性并避免溢出现象固有的主动控制。预期的影响导致LCS控制动态的理解进步，并延长LCS更广泛的操作限制的适用性。

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