| 大型舰船甲板变形测量 |
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| 引用本文： | 郑荣才,陈超英,杨功流. 大型舰船甲板变形测量[J]. 天津大学学报(自然科学与工程技术版), 2006, 39(9): 1077-1081 |
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| 作者姓名： | 郑荣才 陈超英 杨功流 |
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| 作者单位： | [1]天津大学机械工程学院,天津300072 [2]天津航海仪器研究所,天津300131 [3]军事交通学院,天津300161 |
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| 摘 要： | 为测量大型舰船甲板的变形,提出了基于多个IMU数据融合的测量方法．建立了甲板变形测量模型．利用最小二乘估计对甲板的变形进行了分析．结果表明,用该方法可以实时估计未安装IMU战位点处的甲板变形,且能减少变形测量系统所需IMU的数量;变形估计精度与IMU的布置有关,当IMU的布置合理时,估计精度优于0．8arcmin．
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| 关 键 词： | 变形测量 统一姿态基准 最小二乘估计 惯性测量单元 |
| 文章编号： | 0493-2137（2006）09-01077-05 |
| 收稿时间： | 2005-08-01 |
| 修稿时间： | 2005-08-012006-02-20 |
Deck Deformation Measurement of Large-Sized Ship |
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| ZHENG Rong-cai,CHEN Chao-ying,YANG Gong-liu. Deck Deformation Measurement of Large-Sized Ship[J]. Journal of Tianjin University(Science and Technology), 2006, 39(9): 1077-1081 |
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| Authors: | ZHENG Rong-cai CHEN Chao-ying YANG Gong-liu |
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| Affiliation: | 1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China; 2. Tianjin Navigation Instrument Research Institute, Tianjin 300131, China; 3. Military Traffic Institute, Tianjin 300161, China |
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| Abstract: | Based on multi-inertial measuring unit (IMU) data fusion,a method was proposed for deck deform- ation measurement.The model of deck deformation measurement was developed.The least squares estimation was applied to the analysis of deck deformation.The results show that by processing the output signals of the IMU,it is feasible to estimate the deck deformation,and to decrease the number of IMUs needed in the meas- urement system.The accuracy of deformation estimation depends on the arrangement of IMUs.The prediction error is less than 0.8 arcmin when the IMUs are arranged reasonably. |
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| Keywords: | deformation measurement uniform attitude reference least squares estimation inertial measuring unit |
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