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学者姓名：陈淑梅
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Abstract ：
Magnetorheological dampers (MRDs) are applied to hydraulic systems, which not only improve the underdamped characteristics of valve-controlled cylinder systems, but also help hydraulic actuators to resist high load impact. However, the high power density leads to the complexity of the internal flow channel of the damper, which seriously affects the output accuracy of the damping force. It can lead to the fact that existing dynamics models cannot accurately describe the hysteresis characteristics of the MRD. Therefore, this study proposes a simple and general dynamic model of MRD, which solves the problem that existing models are complex and difficult to invert. Firstly, the hydraulic damping actuator with the series MRD is taken as the research object. Based on the stress-strain hysteresis characteristics under the cyclic constitutive model, the hyperbolic tangent curve is reorganized and normalized. It can accurately describe the yield formation and yield dissipation stages of the hysteresis loop. Secondly, the relationship between the parameters of the dynamic model and the current is obtained according to the mechanical experimental data. Then the inverse model of the MRD is established by using the method of section-backstepping. Finally, in the static experiment, the mean absolute percentage error (MAPE) of the force at different velocity is less than 7.5%; in the dynamic experimental test, the MAPE of the force is 9.7%. The inverse dynamics model is verified to have high tracking performance under both static and dynamic forces. And it also indirectly confirms the effectiveness of the forward model.
Keyword ：
forward and inverse dynamic model forward and inverse dynamic model high power density high power density hyperbolic tangent model hyperbolic tangent model magnetorheological damper magnetorheological damper stress-strain hysteretic characteristics stress-strain hysteretic characteristics
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| GB/T 7714 | Ma, Baizhou , Huang, Hui , Huang, Jiabo et al. A forward-inverse dynamic model for the hydraulic damping(magnetorheological) actuator based on cyclic stress-strain [J]. | SMART MATERIALS AND STRUCTURES , 2024 , 33 (2) . |
| MLA | Ma, Baizhou et al. "A forward-inverse dynamic model for the hydraulic damping(magnetorheological) actuator based on cyclic stress-strain" . | SMART MATERIALS AND STRUCTURES 33 . 2 (2024) . |
| APA | Ma, Baizhou , Huang, Hui , Huang, Jiabo , Lin, Xiufang , Huang, Qiufang , Chen, Shumei . A forward-inverse dynamic model for the hydraulic damping(magnetorheological) actuator based on cyclic stress-strain . | SMART MATERIALS AND STRUCTURES , 2024 , 33 (2) . |
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Abstract ：
斜轴式轴向柱塞马达内部噪声源距离较近，如马达配流盘进、出油口间的距离为38 mm，且马达噪声源存在同频及倍频现象。斜轴式马达内部密集复杂的噪声源，导致频谱分析方法难以准确识别同频及倍频信号，传统声强测量的最高分辨率为50 mm，无法满足马达内部噪声源的辨识精度要求。针对传统方法难以准确辨识马达噪声源的问题，文中提出了一种基于压缩感知的声强测量方法，将压缩感知理论运用于声强云图高精度重构中，获取马达高分辨率的声强重构图像。首先，通过对斜轴式马达进行噪声辐射仿真分析，获取其外表面声场特性；然后，以马达外表面声强云图为先验信息，设计应用于马达声场的压缩感知框架，获取高精度重构马达声强云图；最后，通过马达传统声强测量与压缩感知声强测量的对比实验验证压缩感知理论对于提高马达噪声源辨识精度的可行性。结果表明，基于压缩感知的声强测量方法将马达噪声源辨识尺度从原来的70 mm提升至30 mm，提高了马达噪声源的辨识精度，实现了马达噪声源的高精度定位。
Keyword ：
压缩感知 压缩感知 声强测量 声强测量 声源高精度定位 声源高精度定位 斜轴式马达 斜轴式马达
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| GB/T 7714 | 陈淑梅 , 罗远明 , 黄惠 et al. 压缩感知在斜轴式马达声强成像中的应用研究 [J]. | 华南理工大学学报(自然科学版) , 2024 , 52 (04) : 68-76 . |
| MLA | 陈淑梅 et al. "压缩感知在斜轴式马达声强成像中的应用研究" . | 华南理工大学学报(自然科学版) 52 . 04 (2024) : 68-76 . |
| APA | 陈淑梅 , 罗远明 , 黄惠 , 吴干永 , 黄秋芳 , 钱聪 et al. 压缩感知在斜轴式马达声强成像中的应用研究 . | 华南理工大学学报(自然科学版) , 2024 , 52 (04) , 68-76 . |
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Abstract ：
The current, electromagnetic force, and dynamic displacement of the high-speed on/off valve's (HSV) electromechanical converter under stable working cycle are significantly different from those under the initial movement cycle. This phenomenon determines whether the electromechanical converter can continue to operate stably, and it also leads to temperature rise and high energy consumption over long periods of time. Therefore, in this study, a high-precision model is proposed that can fully analyze the characteristics of the electromechanical converter under multiple motion cycles with the consideration of the effects of eddy current and hysteresis. First, the hysteresis loop of the material is tested, and the Jiles-Atherton hysteresis model is identified based on the test data and verified through experiments. Second, the fundamental reasons for the differences in current and electromagnetic forces between initial motion and stable motion are analyzed. On this basis, a new law of dynamic evolution of electromechanical converters under multiple motion cycles is discovered. Finally, the important influence of hysteresis characteristics and eddy current on the dynamic performance and energy loss of the electromechanical converter under multiple motion cycles is analyzed. The effects of frequency, voltage, and external resistance on the dynamic characteristics and energy loss of electromechanical converters have also been analyzed. The results indicate that as the voltage increases, the response time decreases, but the eddy current loss increases. An increase in external resistance will increase response time but reduce eddy current losses. This study can provide a theoretical basis for further improving the performance of electromechanical converters.
Keyword ：
Eddy current Eddy current Eddy currents Eddy currents electromechanical converter electromechanical converter energy consumption energy consumption high-speed on/off valve (HSV) high-speed on/off valve (HSV) hysteresis hysteresis Soft magnetic materials Soft magnetic materials
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| GB/T 7714 | Chen, Shaorong , Li, Qizheng , Huang, Hui et al. Dynamic Characteristics and Energy Consumption of Electromechanical Converter of High-Speed On/Off Valve Under Multiple Motion Cycles Considering Eddy Current and Hysteresis [J]. | IEEE TRANSACTIONS ON MAGNETICS , 2024 , 60 (3) . |
| MLA | Chen, Shaorong et al. "Dynamic Characteristics and Energy Consumption of Electromechanical Converter of High-Speed On/Off Valve Under Multiple Motion Cycles Considering Eddy Current and Hysteresis" . | IEEE TRANSACTIONS ON MAGNETICS 60 . 3 (2024) . |
| APA | Chen, Shaorong , Li, Qizheng , Huang, Hui , Chen, Shumei , Du, Heng , Li, Yuzheng et al. Dynamic Characteristics and Energy Consumption of Electromechanical Converter of High-Speed On/Off Valve Under Multiple Motion Cycles Considering Eddy Current and Hysteresis . | IEEE TRANSACTIONS ON MAGNETICS , 2024 , 60 (3) . |
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本发明提出一种梯度磁场驱动的磁流变液微型泵，所述微形泵包括电磁铁和弹性的泵腔；所述泵腔的输入口处设有防止泵腔内液体流出的进口瓣膜，输出口处设有防止泵腔内液体流入的出口瓣膜；所述弹性泵腔设有弹性的磁流变液容器；当电磁铁的励磁线圈通电时，磁流变液容器内的磁流变液受磁场作用而流动并驱动磁流变液容器形变或位移，带动泵腔形变并挤压泵腔内的液体从输出口输出；当励磁线圈断电时，磁流变液容器、泵腔在弹力作用下复位，使泵腔内形成负压并经输入口把外部液体吸入泵腔；本发明结构简单、体积小、响应速度快，不会对泵送液体产生二次污染和破坏，能应用于生物药品、化学试剂等高品质液体的输送以及作为微型机械系统的动力源。
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| GB/T 7714 | 陈淑梅 , 郑基楠 . 一种梯度磁场驱动的磁流变液微型泵 : CN202111369770.X[P]. | 2021-11-18 00:00:00 . |
| MLA | 陈淑梅 et al. "一种梯度磁场驱动的磁流变液微型泵" : CN202111369770.X. | 2021-11-18 00:00:00 . |
| APA | 陈淑梅 , 郑基楠 . 一种梯度磁场驱动的磁流变液微型泵 : CN202111369770.X. | 2021-11-18 00:00:00 . |
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本实用新型涉及一种高效立轴行星式混凝土搅拌机，包括搅拌桶、减速箱、动力系统、传动系统和搅拌系统，所述搅拌系统包括位于搅拌桶内上方的公转轮盘，所述公转轮盘下端设有行星齿轮箱，所述行星齿轮箱下侧设有由其驱动转动的第一行星架和第二行星架，第一行星架和第二行星架分别连接有一对近端搅拌轴，近端搅拌轴下端设有刮刀；所述公转轮盘旁侧设有远端齿轮箱，远端齿轮箱下侧设有由其驱动转动的远端搅拌轴，远端搅拌轴上设有螺旋叶片。本实用新型通过增设远端搅拌轴，扩大搅拌范围，能够避免桶壁附近混凝土堆积，使物料的固相能比较充分地与液相溶解，充分的完成水化反应，提升搅拌产品质量。
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| GB/T 7714 | 陈淑梅 , 李清洋 , 郑基楠 et al. 一种高效立轴行星式混凝土搅拌机 : CN202221319073.3[P]. | 2022-05-30 00:00:00 . |
| MLA | 陈淑梅 et al. "一种高效立轴行星式混凝土搅拌机" : CN202221319073.3. | 2022-05-30 00:00:00 . |
| APA | 陈淑梅 , 李清洋 , 郑基楠 , 真庄彬 . 一种高效立轴行星式混凝土搅拌机 : CN202221319073.3. | 2022-05-30 00:00:00 . |
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本发明涉及一种磁流变液阵列阀装置及其控制方法，装置包括上、下两层，上层由结构形式相同的阀单元以n×n的排列方式组成阵列阀组，下层由电磁铁单元以n×n的排列方式组成阵列电磁铁组，阀单元与电磁铁单元的安装轴线重合且一一对应，各阀单元均由磁流变液团和设于其正下方的可挤压容腔构成，各可挤压容腔均与其邻近的可挤压容腔通过管道连接，外围的可挤压容腔设有出入口，各电磁铁单元都由铁芯和励磁线圈构成。装置的控制方法为，向电磁铁组的各个励磁线圈通入既定的时序电流，使阵列阀组的各阀单元在同一时刻处于不同的启闭状态，使阵列阀组内部形成不同形式的输送流道或泵送流道。该装置可以实现多通道阀、泵功能，且结构简单紧凑。
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| GB/T 7714 | 陈淑梅 , 郑基楠 , 段炜实 et al. 一种磁流变液阵列阀装置及其控制方法 : CN202111509127.2[P]. | 2021-12-10 00:00:00 . |
| MLA | 陈淑梅 et al. "一种磁流变液阵列阀装置及其控制方法" : CN202111509127.2. | 2021-12-10 00:00:00 . |
| APA | 陈淑梅 , 郑基楠 , 段炜实 , 肖渝凡 . 一种磁流变液阵列阀装置及其控制方法 : CN202111509127.2. | 2021-12-10 00:00:00 . |
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Abstract ：
In this paper, an energy recovery type self-sensing magnetorheological dampers (MRD) was proposed, using a damper nested in a piezoelectric ceramic (PZT) stack structure to achieve energy recovery and self-sensing. Firstly, the structure of the damper is designed rationally. Secondly, the MRD-based damping force model is established by combining the characteristics of the damper motion and the flow field distribution principle. Then the piezoelectric material modal is analysed to determine its structural dimensions. Next, a mathematical model of electromechanical coupling between the parallel piezoelectric stack and MRD is established, and the simulation model is established to provide a basis for the study of energy recovery and self-sensing performance. Finally, an experimental platform is built: when the external current is 1.2 A, the output damping force is 680 N, and the damper can achieve vibration energy recovery and output power of 0.43 W under the sinusoidal signal with excitation frequency of 5 Hz, and self-sensing of external vibration excitation through the piezoelectric stack output electrical signal. © 2023 Inderscience Enterprises Ltd.
Keyword ：
electric coupling model electric coupling model energy recovery energy recovery magnetorheological dampers magnetorheological dampers MRD MRD piezoelectric ceramics piezoelectric ceramics self-sensing self-sensing
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| GB/T 7714 | Chen, S.-M. , Ma, B.-Z. , Huang, H. et al. Design and performance analysis of energy recovery and self-sensing MR dampers based on piezoelectric effect [J]. | International Journal of Structural Engineering , 2023 , 13 (4) : 408-425 . |
| MLA | Chen, S.-M. et al. "Design and performance analysis of energy recovery and self-sensing MR dampers based on piezoelectric effect" . | International Journal of Structural Engineering 13 . 4 (2023) : 408-425 . |
| APA | Chen, S.-M. , Ma, B.-Z. , Huang, H. , Chen, C.-L. . Design and performance analysis of energy recovery and self-sensing MR dampers based on piezoelectric effect . | International Journal of Structural Engineering , 2023 , 13 (4) , 408-425 . |
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The hydraulic motor will generate noise in operation and it has fluid-structure coupling and compact internal structure. The sound intensity measurement is difficult to distinguish the noise sources of motor. In this paper, a high-precision localization method for noise sources of bent-axis motor is studied to improve the resolution of the sound intensity images to locate noise sources accurately. Firstly, the structural characteristics of the motor are analyzed, and the sound intensity images are obtained through the experiment. Then the high-resolution optimization method based on compressed sensing is designed according to the characteristics of the sound intensity field. Finally, the sound intensity images with high resolution are constructed. The high-resolution images can distinguish the position of the prominent points, and the error is less than 0.4 dB. The identification distance of noise sources can reach 30 mm, and it breaks through the highest resolution of the traditional sound intensity test. © The Author(s) 2023.
Keyword ：
Bent-axis motor Bent-axis motor Compressed sensing Compressed sensing High-resolution optimization High-resolution optimization Noise source location Noise source location Sound intensity image Sound intensity image
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| GB/T 7714 | Xu, C. , Xiangming, M. , Qinghong, G. et al. High precision localisation of the sources of noise of a bent-axis motor [J]. | Noise and Vibration Worldwide , 2023 , 54 (7-8) : 350-359 . |
| MLA | Xu, C. et al. "High precision localisation of the sources of noise of a bent-axis motor" . | Noise and Vibration Worldwide 54 . 7-8 (2023) : 350-359 . |
| APA | Xu, C. , Xiangming, M. , Qinghong, G. , Hui, H. , Shumei, C. , Heng, D. et al. High precision localisation of the sources of noise of a bent-axis motor . | Noise and Vibration Worldwide , 2023 , 54 (7-8) , 350-359 . |
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Accurately evaluating the mixing efficiency of a planetary concrete mixer is the linchpin of estimating the rationality of the mixer structure, but it is currently difficult to establish a general and systematic evaluation method. This paper proposed a digital method for evaluating the planetary mixer efficiency based on the kinematic model of the mixing blade. The mixing efficiency of two typical symmetrical and asymmetrical planetary mixers was compared based on the digital data computed using the proposed method. An automated concrete mixing platform was established to experimentally validate the digital evaluation method. The results indicated that the asymmetric planetary mixer had higher mixing efficiency than the symmetric mixer. Additionally, the mixing efficiency of symmetric mixer increased about 18% as the angle between the two planetary arms changed from 90 to 45, which was due to the difference in the coverage of the mixing blades on the mixing surface.
Keyword ：
Digital evaluation method Digital evaluation method Kinematics Kinematics Planetary concrete mixer Planetary concrete mixer Trajectory tracking Trajectory tracking
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| GB/T 7714 | Zheng, Jinan , Chen, Shumei , Fu, Xinyuan et al. Digital evaluation of planetary concrete mixer efficiency [J]. | AUTOMATION IN CONSTRUCTION , 2023 , 150 . |
| MLA | Zheng, Jinan et al. "Digital evaluation of planetary concrete mixer efficiency" . | AUTOMATION IN CONSTRUCTION 150 (2023) . |
| APA | Zheng, Jinan , Chen, Shumei , Fu, Xinyuan , Fu, Guohua , Zhong, Jia , Chen, Bishu et al. Digital evaluation of planetary concrete mixer efficiency . | AUTOMATION IN CONSTRUCTION , 2023 , 150 . |
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在考虑二阶滑移边界的影响下,对多孔介质中垂直拉伸板引起的分数阶Maxwell纳米流体流动与热传递特性开展分析研究.利用分数阶剪切应力和分数阶Cattaneo热通量模型构建二维边界层控制方程,采用有限差分和L1 算法进行数值求解.对不同物理参数下的速度、温度、平均表面摩擦系数和平均Nusselt数的变化趋势进行图形化分析.研究结果表明,牛顿流体的流动性能和热传递优于粘弹性流体;速度分数阶导数参数和温度松弛时间会恶化对流和热传递,而温度分数阶导数参数和速度松弛时间则促进对流和热传递;滑移参数降低了流体初始速度,一阶滑移参数对流动和热传递的影响大于二阶滑移参数;流动和热传递对各物理参数的敏感度随该物理参数的增大而下降.
Keyword ：
二阶滑移边界 二阶滑移边界 分数阶Maxwell纳米流体 分数阶Maxwell纳米流体 垂直拉伸板 垂直拉伸板 多孔介质 多孔介质 流动与热传递 流动与热传递
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| GB/T 7714 | 许晓勤 , 陈淑梅 . 分数阶Maxwell纳米流体二阶滑移流动与热传递分析 [J]. | 福建工程学院学报 , 2023 , 21 (4) : 353-362 . |
| MLA | 许晓勤 et al. "分数阶Maxwell纳米流体二阶滑移流动与热传递分析" . | 福建工程学院学报 21 . 4 (2023) : 353-362 . |
| APA | 许晓勤 , 陈淑梅 . 分数阶Maxwell纳米流体二阶滑移流动与热传递分析 . | 福建工程学院学报 , 2023 , 21 (4) , 353-362 . |
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