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This study investigated the static coupling characteristics of a column-type six-component force/moment transducer. An output model of the transducer was developed and validated through finite element method (FEM) simulations. Length-to-diameter ratio (RLD), deflection angles of strain gauge, and multi-component loads were analysed in relation to transducer coupling. Six transducers with different RLDs and strain gauge deflection angles were tested under single and multi-component loads. It was found that the coupling of Fz under Fx or Fy was pronounced when RLD was small. The coupling of Fz under Fx increased from less than 5 % to 34 % when RLD decreased from 3.5 to 2.0. However, couplings of other components under Fz were not sensitive to RLD. The strain gauge deflection angles had the largest effect on the coupling of the Fz component, its coupling increased from 2.5 % to over 17.5% under Mx as the deflection angle increased from 0 degrees to 6 degrees. However, couplings of other components caused by Fz were not sensitive to strain gauge deflection angle. The couplings under multicomponent loads were found to approximate the superposition of those under single-component loads, with deviations within 2 %, indicating good linearity and easy decoupling of the transducer.
Keyword ：
Column-type Column-type Coupling characteristics Coupling characteristics Force measurement Force measurement Six-component Six-component
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| GB/T 7714 | Liang, Wei , Xu, Zhenting , Xie, Zhijie et al. Coupling characteristic of column-type six-component force/ moment transducers [J]. | MEASUREMENT , 2025 , 242 . |
| MLA | Liang, Wei et al. "Coupling characteristic of column-type six-component force/ moment transducers" . | MEASUREMENT 242 (2025) . |
| APA | Liang, Wei , Xu, Zhenting , Xie, Zhijie , Hong, Xiaodong , Zhong, Jianfeng , Zhong, Shuncong et al. Coupling characteristic of column-type six-component force/ moment transducers . | MEASUREMENT , 2025 , 242 . |
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This paper explores the application of multidisciplinary design optimization to the blades in horizontal-axis wind turbines. The aerodynamics and structural performance of blades are considered in the optimization framework. In the aerodynamic discipline, class function/shape function transformation-based parameterized modeling is used to express the airfoil. The Wilson method is employed to obtain the aerodynamic shape of the blade. Computational fluid dynamics numerical simulation is performed to analyze the aerodynamics of the blade. In the structural discipline, the materials and ply lay-up design are studied. Finite element method-based modal analysis and static structural analysis are conducted to verify the structural design of the blade. A collaborative optimization framework is set up on the Isight platform, employing a genetic algorithm to find the optimal solution for the blade's aerodynamics and structural properties. In the optimization framework, the design variables refer to the length of the blade chord, twist angle, and lay-up thickness. Additionally, Kriging surrogate models are constructed to reduce the numerical simulation time required during optimization. An optimal Latin hypercube sampling method-based experimental design is employed to determine the samples used in the surrogate models. The optimized blade exhibits improved performance in both the aerodynamic and the structural disciplines.
Keyword ：
aerodynamic characteristics aerodynamic characteristics multidisciplinary design optimization multidisciplinary design optimization numerical simulation numerical simulation structural characteristics structural characteristics wind turbine blades wind turbine blades
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| GB/T 7714 | He, Fushan , Zheng, Xingsheng , Luo, Weilin et al. Collaborative Optimization of Aerodynamics and Wind Turbine Blades [J]. | APPLIED SCIENCES-BASEL , 2025 , 15 (2) . |
| MLA | He, Fushan et al. "Collaborative Optimization of Aerodynamics and Wind Turbine Blades" . | APPLIED SCIENCES-BASEL 15 . 2 (2025) . |
| APA | He, Fushan , Zheng, Xingsheng , Luo, Weilin , Zhong, Jianfeng , Huang, Yunhua , Ye, Aili et al. Collaborative Optimization of Aerodynamics and Wind Turbine Blades . | APPLIED SCIENCES-BASEL , 2025 , 15 (2) . |
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A novel measurement system based on Hanning-window-changing density fringes and two-dimensional vision was proposed for monitoring the tank settlement. The artificial Hanning-window-changing density fringes were attached to the surface of the tested storage tank, and the surface fringes were collected in real time by a far-focus imaging camera at a certain distance, and then the images were processed by a specific image processing algorithm to extract the settlement displacement of the storage tank. The image sequences of tank settlement under different conditions were simulated by SOLIDWORKS 3D modeling, motion simulation and image imaging module, and the main measurement performance influencing factors, measurement feasibility and accuracy were simulated and analyzed. The simulated experimental measurement system of tank settlement was constructed, and its measurement performance was analyzed experimentally. The results show that the proposed system can realize real-time monitoring of the tank settlement displacement, and the measurement accuracy can be better than 10 μm at a distance of 7.5 m. © 2024 Editorial office of Journal of Applied Optics. All rights reserved.
Keyword ：
far-focus imaging camera far-focus imaging camera Hanning-window density fringes Hanning-window density fringes tank settlement tank settlement vision monitoring vision monitoring
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| GB/T 7714 | Fu, X. , Wei, W. , Huang, X. et al. Vision measurement system for tank settlement using Hanning-window changing density fringes; [基 于 汉 宁 窗 变 密 度 条 纹 的 储 罐 沉 降 视 觉 测 量 方 法] [J]. | Journal of Applied Optics , 2024 , 45 (1) . |
| MLA | Fu, X. et al. "Vision measurement system for tank settlement using Hanning-window changing density fringes; [基 于 汉 宁 窗 变 密 度 条 纹 的 储 罐 沉 降 视 觉 测 量 方 法]" . | Journal of Applied Optics 45 . 1 (2024) . |
| APA | Fu, X. , Wei, W. , Huang, X. , Liu, D. , Zhong, J. , Wang, D. et al. Vision measurement system for tank settlement using Hanning-window changing density fringes; [基 于 汉 宁 窗 变 密 度 条 纹 的 储 罐 沉 降 视 觉 测 量 方 法] . | Journal of Applied Optics , 2024 , 45 (1) . |
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针对储罐沉降问题，提出一种基于汉宁窗变密度条纹和二维视觉的储罐沉降测量系统。将设计的汉宁窗变密度条纹附于被测储罐的表面，在一定距离处通过远焦成像相机对表面的条纹进行实时采集，再通过特定的图像处理算法对图像进行处理以提取储罐的沉降位移。通过SOLIDWORKS三维建模、运动仿真和图像成像模块模拟了不同条件下储罐沉降的图像序列，对主要的测量性能影响因素、测量可行性和准确性进行了模拟分析。搭建了储罐沉降模拟实验测量系统，对系统的测量性能进行了实验分析。结果表明，本测量方法可实现储罐沉降位移的实时监测，在7.5 m距离外沉降位移测量精度优于10μm。
Keyword ：
储罐沉降 储罐沉降 汉宁窗变密度条纹 汉宁窗变密度条纹 视觉监测 视觉监测 远焦成像相机 远焦成像相机
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| GB/T 7714 | 伏喜斌 , 魏崴 , 黄学斌 et al. 基于汉宁窗变密度条纹的储罐沉降视觉测量方法 [J]. | 应用光学 , 2024 , 45 (01) : 158-165 . |
| MLA | 伏喜斌 et al. "基于汉宁窗变密度条纹的储罐沉降视觉测量方法" . | 应用光学 45 . 01 (2024) : 158-165 . |
| APA | 伏喜斌 , 魏崴 , 黄学斌 , 刘东明 , 钟剑锋 , 王东 et al. 基于汉宁窗变密度条纹的储罐沉降视觉测量方法 . | 应用光学 , 2024 , 45 (01) , 158-165 . |
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针对机器视觉定位引导系统中外界因素导致eye-in-hand方案的相机细微偏移的问题，提出一种相机偏移像素坐标矫正方法。为消除相机偏移对初始标定参数的影响，基于针孔相机投影模型，建立相机偏移像素坐标估计模型；通过设计相机确认位划分图像区域，解析每个子区域中描述相机偏移模型的参数；以物体特征点偏移后像素坐标为已知条件，求解其偏移前像素坐标，以保证初始标定参数的有效性。实验结果表明，相机偏移像素坐标矫正方法能够有效修正螺栓通孔固定的相机偏移引起的像素坐标误差，修正误差在1 pixel以内。
Keyword ：
像素 像素 数字图像相关 数字图像相关 机器视觉 机器视觉 相机偏移修正 相机偏移修正
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| GB/T 7714 | 涂钊 , 钟剑锋 , 魏崴 et al. 基于视觉定位引导的相机偏移像素坐标矫正方法 [J]. | 激光与光电子学进展 , 2024 , 61 (14) : 191-200 . |
| MLA | 涂钊 et al. "基于视觉定位引导的相机偏移像素坐标矫正方法" . | 激光与光电子学进展 61 . 14 (2024) : 191-200 . |
| APA | 涂钊 , 钟剑锋 , 魏崴 , 池守疆 , 刘东明 , 郭贵勇 et al. 基于视觉定位引导的相机偏移像素坐标矫正方法 . | 激光与光电子学进展 , 2024 , 61 (14) , 191-200 . |
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The radial vibration signals of the rotor can provide abundant information about the health condition of the machine. In this paper, a simple vision-based measurement system is proposed to simultaneously measure two-dimensional displacements in radial directions for the rotating shaft, where the system consists of a constant density fringe pattern (CDFP), a line scan camera (LSC), and a lens. The CDFP should be installed around the surface of the rotating shaft to make the density of the fringe constant along the shaft axis, while the shaft axis is vertical to the optical axis of the LSC but not parallel to the line-array sensor of the LSC. Therefore, the density of the fringe imaged on the LSC is not constant because of the modulation of the circular surface of the shaft, and the distribution of the fringe density on the LSC is a U-shaped curve. Thus, the shaft centreline orbit can be tracked by the lowest point of the density distribution curve (DDC) of the fringe. Then, an efficient and accurate parameterized instantaneous frequency estimation method is employed to estimate the DDC of the fringe, because the variable density fringe can be regarded as an amplitude-modulated and frequency-modulated nonstationary signal whose instantaneous frequency function is equivalent to the DDC. Experimental results verify the feasibility and effectiveness of the proposed method by comparing it to the eddy current sensors.
Keyword ：
constant density fringe pattern constant density fringe pattern line scan camera line scan camera parameterized instantaneous frequency estimation method parameterized instantaneous frequency estimation method radial vibration measurement radial vibration measurement rotating shaft rotating shaft
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| GB/T 7714 | Huang, Yuexin , Liu, Dongming , Zhong, Jianfeng et al. Radial vibration measurement of rotating shaft using constant density fringe pattern and line scan camera [J]. | MEASUREMENT SCIENCE AND TECHNOLOGY , 2024 , 35 (8) . |
| MLA | Huang, Yuexin et al. "Radial vibration measurement of rotating shaft using constant density fringe pattern and line scan camera" . | MEASUREMENT SCIENCE AND TECHNOLOGY 35 . 8 (2024) . |
| APA | Huang, Yuexin , Liu, Dongming , Zhong, Jianfeng , Zhong, Shuncong . Radial vibration measurement of rotating shaft using constant density fringe pattern and line scan camera . | MEASUREMENT SCIENCE AND TECHNOLOGY , 2024 , 35 (8) . |
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The paper proposes an unsupervised deep convolutional dynamic joint distribution domain adaptive network model for the problem of bearing fault diagnosis under variable conditions, which involves missing labeling of target domain data and large differences in the distribution of source and target domain data. The model consists of the following steps: (1) converting the original vibration signal of the bearing into a time-frequency map representation and performing feature extraction on the labeled source domain samples and the unlabeled target domain samples by the deep convolutional feature extractor; (2) dynamically aligning the marginal distribution and conditional distribution of the two domain features by the marginal distribution adaptation module and the conditional distribution adaptation module, so that the trained network model can classify the unlabeled target domain samples accurately according to the label mapping relationship of the source domain samples; (3) validating the model on two rolling bearing datasets; (4) experiment with model interpretability in conjunction with XAI techniques to help us understand what the model actually does. The experimental results on two rolling bearing datasets show the validity of the proposed model.
Keyword ：
Deep domain adaption Deep domain adaption Fault diagnosis Fault diagnosis Rolling bearing Rolling bearing Variable conditions Variable conditions
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| GB/T 7714 | Zhong, Jianhua , Lin, Cong , Gao, Yang et al. Fault diagnosis of rolling bearings under variable conditions based on unsupervised domain adaptation method [J]. | MECHANICAL SYSTEMS AND SIGNAL PROCESSING , 2024 , 215 . |
| MLA | Zhong, Jianhua et al. "Fault diagnosis of rolling bearings under variable conditions based on unsupervised domain adaptation method" . | MECHANICAL SYSTEMS AND SIGNAL PROCESSING 215 (2024) . |
| APA | Zhong, Jianhua , Lin, Cong , Gao, Yang , Zhong, Jianfeng , Zhong, Shuncong . Fault diagnosis of rolling bearings under variable conditions based on unsupervised domain adaptation method . | MECHANICAL SYSTEMS AND SIGNAL PROCESSING , 2024 , 215 . |
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This paper proposes an instantaneous rotational speed (IRS) sensing method that utilizes a circumferential constant-density-sine fringe pattern (CCDSFP) captured by a linear-array sensor (LAS). A novel mathematical imaging model has been established to develop a mapping relationship between the correlation coefficient (CC) value of adjacent frame fringe signals and the IRS. The influence of various factors on the sensing performance was thoroughly investigated through simulations and experiments. The results indicate that this method demonstrates satisfactory measurement accuracy within the measurement range from 0 rpm to the maximum measurable rotation speed. The innovation of this method lies in using only a single line of fringe signal captured by LAS for sensing the rotation speed, which offers significant advantages in rotation speed sensing and computational efficiency compared to area-array camera-based method. Moreover, the new speed encoding and estimation methods exhibit very high sensitivity and accuracy for very low and high rotation speed. Compared to encoders based on pulse counting during a unit time or time interval estimation between two pulses, the proposed method provides higher temporal resolution and angular resolution for rotation speed measurement. Furthermore, this novel sensing method offers a non-intrusive approach that has no additional mass effect on the shaft, and it could be used for the development of new kind of IRS sensor. © 2024 IEEE.
Keyword ：
Circumferential Constant-Density-Sine Fringe Pattern Circumferential Constant-Density-Sine Fringe Pattern Correlation coefficient Correlation coefficient Instantaneous rotational speed Instantaneous rotational speed Vision-based measurement Vision-based measurement
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| GB/T 7714 | Zhong, J. , Chi, S. , Liu, D. et al. Instantaneous Rotational Speed Sensing Method Using Circumferential Constant-Density-Sine Fringe Pattern [J]. | IEEE Transactions on Instrumentation and Measurement , 2024 . |
| MLA | Zhong, J. et al. "Instantaneous Rotational Speed Sensing Method Using Circumferential Constant-Density-Sine Fringe Pattern" . | IEEE Transactions on Instrumentation and Measurement (2024) . |
| APA | Zhong, J. , Chi, S. , Liu, D. , Feng, B. , Zhong, S. . Instantaneous Rotational Speed Sensing Method Using Circumferential Constant-Density-Sine Fringe Pattern . | IEEE Transactions on Instrumentation and Measurement , 2024 . |
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A multipoint dynamic testing vision-based system for beam-like structures based on composite fringe pattern (CFP) was proposed. The CFP was decorated on the surface of a beam as a sensor, whose image sequences were captured by a camera for dynamic identification. The CFP consists of two cosine fringe patterns. The fringes on both sides of the CFP are used to locate the measuring positions and the middle one is used to measure the spatial displacement of structures. The key advantage of the proposed method is that it can measure multipoint vibration information along the length direction of the beam at one measurement without point-by-point scanning. Experiments on two different beams were carried out, and the results show that the method can get multipoint vibration information and the modal shapes of the beam. Therefore, the vision and CFP-based measurement method is suitable for vibration monitoring and modal analysis of beam-like structures.
Keyword ：
composite fringe pattern composite fringe pattern dynamic identification dynamic identification modal shapes modal shapes vision-based vibration measurement vision-based vibration measurement
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| GB/T 7714 | Chen, Xinwei , Chi, Shoujiang , Lin, Yunlin et al. Modal analysis of beam-like structures using multipoint dynamic testing vision system based on composite fringe pattern [J]. | MEASUREMENT SCIENCE AND TECHNOLOGY , 2023 , 34 (1) . |
| MLA | Chen, Xinwei et al. "Modal analysis of beam-like structures using multipoint dynamic testing vision system based on composite fringe pattern" . | MEASUREMENT SCIENCE AND TECHNOLOGY 34 . 1 (2023) . |
| APA | Chen, Xinwei , Chi, Shoujiang , Lin, Yunlin , Zhong, Jiajie , Zhong, Shuncong , Zhang, Yan et al. Modal analysis of beam-like structures using multipoint dynamic testing vision system based on composite fringe pattern . | MEASUREMENT SCIENCE AND TECHNOLOGY , 2023 , 34 (1) . |
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针对管道振动监测问题，提出基于线阵相机的管道周向二维振动同步测量方法。在待测管道圆周表面预置单密度正弦条纹，采用线阵相机作为监测器对管道表面条纹图案进行实时采集，利用时频分析方法对采集的条纹进行处理以提取条纹序列的密度变化曲线，再通过条纹密度曲线的对称中心变化及其密度值的变化计算管道周向二维振动位移。首先利用SolidWorks软件建立管道振动测量模型，通过软件视觉成像模块对管道的预设振动进行模拟测量，再对视觉测量系统的影响因素进行模拟分析，最后搭建实验测量系统并与电涡流传感器测量系统的测量结果进行对比。模拟和实验结果表明，提出的测量方法可高效地实现10 mm范围内管道周向二维振动的准确同步测量，位移测量精度优于10μm。
Keyword ：
动态测量 动态测量 周向二维振动 周向二维振动 正弦条纹 正弦条纹 管道 管道 线阵相机 线阵相机
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| GB/T 7714 | 钟剑锋 , 涂钊 , 李思钰 et al. 管道周向二维振动线阵视觉条纹同步测量 [J]. | 仪表技术与传感器 , 2023 , 8 (06) : 76-82,99 . |
| MLA | 钟剑锋 et al. "管道周向二维振动线阵视觉条纹同步测量" . | 仪表技术与传感器 8 . 06 (2023) : 76-82,99 . |
| APA | 钟剑锋 , 涂钊 , 李思钰 , 刘东明 , 池守疆 , 黄跃鑫 et al. 管道周向二维振动线阵视觉条纹同步测量 . | 仪表技术与传感器 , 2023 , 8 (06) , 76-82,99 . |
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