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学者姓名：黄宴委
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Abstract ：
The adhesive layer between an ultrasonic transducer and a circular tube can generate a nonlinear signal during guided wave excitation and reception, which is called adhesive nonlinearity (AN). It may override the damage-related signals and result in false detection if not adequately evaluated and mitigated. This study investigated the AN of the guided wave excitation model composed of a piezoelectric array in a circular tube structure. The classical shear stress lag model was extended to the circumference pasted piezoelectric array-based nonlinear shear stress lag model to investigate the coupling properties of the AN and to evaluate the AN by comparing it with other nonlinear factors within a circular tube structure. On this basis, the nonlinear shear stress was combined with the normal mode expansion to establish a frequency tuning model for the AN, which allowed the effect of the AN to be minimized by adjusting the half-wavelength of the guided wave to match the length of the actuator. Finite-element analyses and experiments validated the tuning characteristics of the AN mentioned above. This work was used to mitigate the effect of the AN on the nonlinear guided wave during thermal damage evaluation. (c) 2025 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND) license (https://creativecommons.org/licenses/by-nc-nd/4.0/).https://doi.org/10.1063/5.0243631
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| GB/T 7714 | Fang, Zhou , Lin, Zuxiong , Huang, Yanwei . Adhesive nonlinearity analysis of longitudinal guided wave using circumference pasted piezoelectric array based nonlinear shear stress lag model [J]. | JOURNAL OF APPLIED PHYSICS , 2025 , 137 (3) . |
| MLA | Fang, Zhou 等. "Adhesive nonlinearity analysis of longitudinal guided wave using circumference pasted piezoelectric array based nonlinear shear stress lag model" . | JOURNAL OF APPLIED PHYSICS 137 . 3 (2025) . |
| APA | Fang, Zhou , Lin, Zuxiong , Huang, Yanwei . Adhesive nonlinearity analysis of longitudinal guided wave using circumference pasted piezoelectric array based nonlinear shear stress lag model . | JOURNAL OF APPLIED PHYSICS , 2025 , 137 (3) . |
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The position of a macrocrack within a circular tube can be determined through the periodic energy distribution variation of a linear non-axisymmetric guided wave. However, to determine the positions of a microcrack within a circular tube is still a difficult job, even for the nonlinear guided wave. Unlike the linear guided wave can detect the axial position through the reflection from a macrocrack, a fatigue crack does not even cause remarkable reflection. This paper investigates the energy concentration degree periodical variation rule of fatigue crack- induced second harmonic non-axisymmetric guided wave within a circular tube. The quantitative relationship between the energy concentration degree and its propagated axial distance is potential to be used to detect a fatigue crack and characterize its axial, circumferential positions. To facilitate the investigation, a specific frequency extracting method was optimized to extract the second harmonic non-axisymmetric guided wave. In addition, an energy concentration degree coefficient was designed to characterize the energy distribution. The fundamental, numerical and experimental work were implemented to verify the studied energy concentration degree periodical variation rule.
Keyword ：
Circular tube Circular tube Energy concentration Energy concentration Fatigue crack Fatigue crack Non-axisymmetric guided wave Non-axisymmetric guided wave Second-harmonic wave Second-harmonic wave
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| GB/T 7714 | Fang, Zhou , Lin, Conglin , Huang, Yanwei . Energy concentration degree periodical variation rule of fatigue crack-induced second harmonic non-axisymmetric guided wave within circular tubes [J]. | NDT & E INTERNATIONAL , 2025 , 151 . |
| MLA | Fang, Zhou 等. "Energy concentration degree periodical variation rule of fatigue crack-induced second harmonic non-axisymmetric guided wave within circular tubes" . | NDT & E INTERNATIONAL 151 (2025) . |
| APA | Fang, Zhou , Lin, Conglin , Huang, Yanwei . Energy concentration degree periodical variation rule of fatigue crack-induced second harmonic non-axisymmetric guided wave within circular tubes . | NDT & E INTERNATIONAL , 2025 , 151 . |
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针对ACCT-Ⅲ实验箱开展"自动控制原理"实验教学缺乏具体的被控对象的问题,设计以电机为被控对象的实验教学,内容包括建立电机电流和速度数学模型,设计电流、速度闭环PID控制系统,控制系统Matlab仿真,实际伺服电机平台实验等.该实验教学从实物建模、模型仿真、控制器设计到控制系统仿真与实物验证,以项目设计理念为指导,让学生更好地理论与实际相结合,达到知识的内化,提高了教学质量.
Keyword ：
仿真与实物验证 仿真与实物验证 电机实验教学 电机实验教学 自动控制原理 自动控制原理
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| GB/T 7714 | 黄宴委 , 程国扬 , 陈丹 et al. 基于电机的"自动控制原理"实验教学 [J]. | 电气电子教学学报 , 2024 , 46 (4) : 186-191 . |
| MLA | 黄宴委 et al. "基于电机的"自动控制原理"实验教学" . | 电气电子教学学报 46 . 4 (2024) : 186-191 . |
| APA | 黄宴委 , 程国扬 , 陈丹 , 陈少斌 . 基于电机的"自动控制原理"实验教学 . | 电气电子教学学报 , 2024 , 46 (4) , 186-191 . |
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针对航速和航道未知扰动等因素，提出一种速度矢量场二阶滑模无人水面艇(USV)引导律。首先，建立无人艇运动学和航向角动力学模型；其次构造路径误差(y_e)模型，设计基于航速(V_g)的路径误差矢量场，速度越大，航向角变化越小；再结合二阶滑模面设计一种速度矢量场二阶滑模无人艇引导律，并考虑未知扰动因素Δ分析速度矢量场二阶滑模无人艇引导律的稳定性。仿真结果表明：相比于经典矢量场，速度矢量场有效实现航速V_g越快，航向角变化率越小，矢量场越平缓，提高了USV航行安全性和稳定性；基于速度矢量场二阶滑模无人艇引导律的路径跟踪控制系统鲁棒性更强，路径跟踪准确度更高，能够较好地完成路径跟踪。
Keyword ：
无人水面艇 无人水面艇 滑模控制 滑模控制 矢量场引导律 矢量场引导律 路径跟踪 路径跟踪
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| GB/T 7714 | 温锦元 , 黄宴委 . 速度矢量场二阶滑模无人艇引导律 [J]. | 华侨大学学报(自然科学版) , 2024 , 45 (03) : 324-331 . |
| MLA | 温锦元 et al. "速度矢量场二阶滑模无人艇引导律" . | 华侨大学学报(自然科学版) 45 . 03 (2024) : 324-331 . |
| APA | 温锦元 , 黄宴委 . 速度矢量场二阶滑模无人艇引导律 . | 华侨大学学报(自然科学版) , 2024 , 45 (03) , 324-331 . |
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针对四足机器人在非结构化地形中难以稳定运动的问题,提出一种不依赖视觉的地形感知和刚度自适应控制方案.首先,采用卡尔曼滤波技术设计机器人状态观测器,对本体状态进行估计.然后,利用估计的本体状态设计一种地形感知控制器,以抑制机体在起伏环境中的高频抖动,从而提高抗干扰能力.而后结合阻抗理论设计刚度自适应控制器,并求解最优刚度变化律,提高姿态误差的收敛速度,增强机器人的动态稳定性.此外,引用李雅普诺夫理论分析系统稳定性.最后,仿真结果与实物样机实验结果表明,本文提出的方法显著增强了机器人的地形适应性和运动平滑性.
Keyword ：
刚度自适应控制 刚度自适应控制 四足机器人 四足机器人 地形感知 地形感知
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| GB/T 7714 | 黄宴委 , 李奕鋆 , 李东方 . 基于地形和刚度自适应的四足机器人姿态控制 [J]. | 机器人 , 2024 , 46 (6) : 713-724,731 . |
| MLA | 黄宴委 et al. "基于地形和刚度自适应的四足机器人姿态控制" . | 机器人 46 . 6 (2024) : 713-724,731 . |
| APA | 黄宴委 , 李奕鋆 , 李东方 . 基于地形和刚度自适应的四足机器人姿态控制 . | 机器人 , 2024 , 46 (6) , 713-724,731 . |
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The secondary control plays an important role in ensuring the power quality of AC island microgrid. Since the traditional time-driven secondary control strategy will cause communication redundancy, the event-triggered mechanism has been widely studied. Under the event-triggered mechanism, the DG performs necessary communication only when its own triggering condition is met. This paper studies the problem of secondary voltage control under periodic event-triggered mechanism, which can restore the output voltage to the reference value. At the same time, considering that each DG has a different sampling and checking period, this is a more general asynchronous communication problem. In the stability analysis, the conditions of event detection period and event parameters to ensure the realization of secondary control are given. Finally, the effectiveness of the mechanism is verified by several simulations. © 2024 IEEE.
Keyword ：
asynchronous communication asynchronous communication distributed secondary control distributed secondary control islanded microgrids islanded microgrids Periodic event-triggered control Periodic event-triggered control
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| GB/T 7714 | Tang, L. , Huang, W. , Chen, S. et al. Distributed Asynchronous Periodic Event-Triggered Voltage Control of Microgrids With Different Checking Periods [未知]. |
| MLA | Tang, L. et al. "Distributed Asynchronous Periodic Event-Triggered Voltage Control of Microgrids With Different Checking Periods" [未知]. |
| APA | Tang, L. , Huang, W. , Chen, S. , Huang, Y. . Distributed Asynchronous Periodic Event-Triggered Voltage Control of Microgrids With Different Checking Periods [未知]. |
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Due to the prevalence of communication link delay in communication networks, the study of communication delays in smart grids and their impact on economic dispatch is of great practical value. In this paper, a Gossip-based economic dispatch protocol perfected under constant time delay is considered, and it is proved by augmented matrix theory and matrix perturbation theory that a sufficiently small control gain parameter always exists to guarantee the convergence over a constant delay in the communication network. Iterative update rules are given when the neighboring generation units do not receive the initial state due to the time delay to ensure the optimal solution can be obtained. Finally, simulation cases are provided to verify the effectiveness and plug-and-play capability of the algorithm, as well as its feasibility for large-scale systems. © 2024 IEEE.
Keyword ：
economic dispatch economic dispatch Gossip Gossip smart grid smart grid time delay time delay
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| GB/T 7714 | Wang, Z. , Huang, W. , Chen, S. et al. Distributed Economic Dispatch Based on Gossip Algorithm in Smart Grid with Time delays [未知]. |
| MLA | Wang, Z. et al. "Distributed Economic Dispatch Based on Gossip Algorithm in Smart Grid with Time delays" [未知]. |
| APA | Wang, Z. , Huang, W. , Chen, S. , Huang, Y. . Distributed Economic Dispatch Based on Gossip Algorithm in Smart Grid with Time delays [未知]. |
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三矢量模型预测电流控制需要依次计算6扇区电压矢量的作用时间，再由价值函数选取期望电压矢量，存在计算量大的缺点。本文提出一种基于期望扇区的三矢量模型预测电流控制，以快速确定期望电压矢量。首先，建立d-q轴的三矢量电流模型，给出其三矢量作用时间；然后，令预测电流为期望电流，可以获得期望电压矢量，并利用Clark变换得到α-β轴的期望电压矢量；最后，利用反正切函数求得期望电压矢量角度，确定期望电压矢量所在的期望扇区，得到期望三矢量及其作用时间。仿真和实验表明，该方法能够保持很好的控制系统性能。同时，该方法只需一次计算期望电压矢量角度即可确定期望三矢量及其作用时间，比传统三矢量方法有效缩短了算法执行时间约60%。
Keyword ：
三矢量模型预测 三矢量模型预测 期望扇区 期望扇区 永磁同步电机 永磁同步电机 电流控制 电流控制 计算量小 计算量小
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| GB/T 7714 | 卓书芳 , 黄宴委 , 傅忠云 et al. 期望扇区三矢量模型预测电流控制 [J]. | 长春师范大学学报 , 2024 , 43 (02) : 28-37,67 . |
| MLA | 卓书芳 et al. "期望扇区三矢量模型预测电流控制" . | 长春师范大学学报 43 . 02 (2024) : 28-37,67 . |
| APA | 卓书芳 , 黄宴委 , 傅忠云 , 何用辉 . 期望扇区三矢量模型预测电流控制 . | 长春师范大学学报 , 2024 , 43 (02) , 28-37,67 . |
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With the application of distributed generators (DGs), microgrids (MGs) have gained much attention. Combined with the distributed communication of networked systems, we investigates the secondary restoration problem in islanded microgrids. The periodic event-triggered (PET) controllers are designed for voltage restoration and frequency restoration with accurate active power allocation, which can naturally avoid Zeno behavior. By means of a common Lyapunov function, a PET protocol is designed that requires only the information of neighbors for event detection. Both event-checking sampling period and event trigger parameter are taken into account to reduce computation and communication redundancy by choosing appropriate parameters. Furthermore, considering the effect of communication delay, sufficient conditions are given to accomplish the secondary control objectives with allowable delays. Switching topologies are considered in an extra discussion. Finally, the effectiveness of the proposed PET control strategies is verified by several MATLAB simulations. © 2024 Elsevier B.V.
Keyword ：
Communication delays Communication delays Distributed secondary control Distributed secondary control Event-triggered control Event-triggered control Islanded microgrid Islanded microgrid Switching topologies Switching topologies
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| GB/T 7714 | Huang, W. , Tang, L. , Chen, S. et al. Distributed periodic event-triggered secondary control for islanded microgrids with switching topologies and communication delays [J]. | Electric Power Systems Research , 2024 , 234 . |
| MLA | Huang, W. et al. "Distributed periodic event-triggered secondary control for islanded microgrids with switching topologies and communication delays" . | Electric Power Systems Research 234 (2024) . |
| APA | Huang, W. , Tang, L. , Chen, S. , Huang, Y. . Distributed periodic event-triggered secondary control for islanded microgrids with switching topologies and communication delays . | Electric Power Systems Research , 2024 , 234 . |
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针对水流冲击引起无人船(unmanned surface vehicle,USV)转艏呈现非线性特点,建立基于转艏运动的非线性变参数(nonlinear parameter-varying,NPV) USV模型,并提出一种NPV H_∞艏向控制方法,以提高艏向调节的快速性和鲁棒性.首先,考虑低展弦比机翼理论能较好地描述船体受水流冲击的特点,建立基于水动力阻尼的非线性Fossen模型.通过忽略横荡速度和横流阻力将动力学模型简化为操纵动力学模型,并引入艏向角,建立NPV艏向模型.其次,构造与艏向控制系统状态和纵荡速度变参相关的Lyapunov函数,推导出满足艏向闭环控制系统H_∞鲁棒稳定的非线性控制器求解条件,该条件是一个非线性矩阵不等式(nonlinear matrix inequality,NLMI).由于NLMI难以求解,根据平方和(sums of squares,SOS)理论,用多项式矩阵代替NLMI中的非线性矩阵,并将NLMI转化为可使用SOS工具求解的多项式线性矩阵不等式.仿真结果表明,NPV H_∞控制器在艏向调节时具有较快的系统响应和更高的准确性.
Keyword ：
H_∞鲁棒控制 H_∞鲁棒控制 平方和 平方和 无人船 无人船 水动力阻尼 水动力阻尼 艏向控制 艏向控制 非线性变参数 非线性变参数
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| GB/T 7714 | 黄宴委 , 黄鹏 . 非线性变参数无人船艏向H_∞鲁棒控制 [J]. | 控制与决策 , 2024 , 39 (05) : 1507-1516 . |
| MLA | 黄宴委 et al. "非线性变参数无人船艏向H_∞鲁棒控制" . | 控制与决策 39 . 05 (2024) : 1507-1516 . |
| APA | 黄宴委 , 黄鹏 . 非线性变参数无人船艏向H_∞鲁棒控制 . | 控制与决策 , 2024 , 39 (05) , 1507-1516 . |
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