| 基于缩减自由度的状态空间法计算伸缩全回转推进器轴系扭振 |
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| 引用本文： | 王玉勃.基于缩减自由度的状态空间法计算伸缩全回转推进器轴系扭振[J].船舶工程,2013,35(6):47-50. |
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| 作者姓名： | 王玉勃 |
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| 作者单位： | 上海振华重工集团股份有限公司 |
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| 摘 要： | 根据拉格朗日方程法，给出自由度缩减原理，将具有一个转动自由度的半正定系统缩减一个自由度，转化成正定系统，刚度矩阵不再奇异，采用状态空间法求解系统在时域上的强迫振动响应，其角位移结果能够直观的反映出系统的振动特性，对结果进行比对分析。
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| 关 键 词： | 扭振 自由度缩减 状态空间 |
| 收稿时间： | 4/8/2013 12:00:00 AM |
| 修稿时间： | 8/8/2013 12:00:00 AM |
Retractable Azimuthing Thruster Shaft Systems Torsional Vibration Calculation by Statespace Method Based on Dof Reduction |
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| Wang Yu-Bo.Retractable Azimuthing Thruster Shaft Systems Torsional Vibration Calculation by Statespace Method Based on Dof Reduction[J].Ship Engineering,2013,35(6):47-50. |
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| Authors: | Wang Yu-Bo |
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| Institution: | Shanghai Zhenhua Heavy Industry Co.,Ltd. |
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| Abstract: | Based on the lagrange equation to derive the principle of DOF reduction, the positive semi-definite system with rotational freedom can be reduced a freedom and transformed to the positive definite system, the stiffness matrix will not be singular, after that using the state space method to solve the forced response of system in the time domain, and angular displacement results can directly reflect the vibration characteristics of the system, compare and analyze the results. |
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| Keywords: | Torsion vibration Dof reduction state space method |
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