以及时发现船舶底面结构变形，确保船舶在良好状态下运行为目的，研究基于传感器感知信息的船舶底面结构变形检测方法。该方法使用不锈钢封装光纤光栅传感器后，选择8路光纤，在每路光纤上连接若干光纤光栅传感器，然后将8路光纤布设在船舶底面结构上，通过每路光纤上连接的光纤光栅传感器感知船舶底面结构光栅信号，再通过非平衡M-Z干涉法对光纤光栅传感器光栅信号进行解调，得到船舶底面结构应变信息，以其为基础同时结合光纤光栅传感器感知应变状态方程，建立多感知信息融合的变形检测模型，求解该模型后得到船舶底面结构变形检测结果。实验表明：该方法可准确感知船舶底面结构应变信息，且传感器信号零漂波动较小，同时可有效实现船舶底面结构变形检测，应用效果较佳。
In order to timely detect the deformation of the ship's bottom structure and ensure that the ship operates in good condition, a sensor based method for detecting the deformation of the ship's bottom structure is studied. After using stainless steel encapsulated fiber optic grating sensors, this method selects 8 optical fibers and connects several fiber optic grating sensors to each fiber. Then, the 8 optical fibers are laid on the bottom structure of the ship, and the grating signals of the ship's bottom structure are sensed by the fiber optic grating sensors connected to each fiber optic fiber. The grating signals of the fiber optic grating sensors are then demodulated by the unbalanced M-Z interference method to obtain the strain information of the ship's bottom structure. Based on this, combined with the strain state equation sensed by the fiber optic grating sensors, a multi sensing information fusion deformation detection model is established. After solving the model, the deformation detection results of the ship's bottom structure are obtained. The experiment shows that this method can accurately perceive the strain information of the ship's bottom structure, and the sensor signal has small zero drift fluctuations. At the same time, it can effectively detect the deformation of the ship's bottom structure, and the application effect is good.
2024,46(21): 170-173 收稿日期：2024-5-23
DOI：10.3404/j.issn.1672-7649.2024.21.029
分类号：TP391
作者简介：王秋锋(1985-),男,副教授,研究方向为智能控制技术
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