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学者姓名:崔晶
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摘要 :
本发明公开一种基于楔形刚毛束的变刚度末端执行器,涉及软体末端执行器技术领域,包括楔形刚毛束单元、切向加载脱附单元、变刚度单元和外框单元;外框单元包括外框,外框的顶部用于连接外连机构;变刚度单元包括连接块和软袋,连接块连接有驱动装置,驱动装置安装于外框内,软袋安装于连接块上,软袋内填充有颗粒物;连接块上设置气管接头,气管接头与软袋连通,用于使软袋内产生负压;切向加载脱附单元包括拉伸弹簧,拉伸弹簧的一端与外框连接,另一端与连接块连接;楔形刚毛束单元包括楔形刚毛束,楔形刚毛束安装于软袋上,楔形刚毛束用于接触并粘附目标物。本发明增加楔形刚毛束的接触面积,实现对楔形刚毛束稳定的切向加载、卸载。
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GB/T 7714 | 崔晶 , 李明昊 , 楚中毅 et al. 一种基于楔形刚毛束的变刚度末端执行器 : CN202110093097.5[P]. | 2021-01-25 . |
MLA | 崔晶 et al. "一种基于楔形刚毛束的变刚度末端执行器" : CN202110093097.5. | 2021-01-25 . |
APA | 崔晶 , 李明昊 , 楚中毅 , 王佳奇 , 刘慧敏 . 一种基于楔形刚毛束的变刚度末端执行器 : CN202110093097.5. | 2021-01-25 . |
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摘要 :
The space debris occupies the orbit resources greatly, which seriously threats the safety of spacecraft for its high risks of collisions. Many theories about space debris removal have been put forward in recent years. The Electro Dynamic Tether (EDT), which can be deployed under gravity gradient, is considered to be an effective method to remove debris in low orbit for its low power consumption. However, in order to generate sufficient Lorentz force, the EDT needs to be deployed to several kilometers, which increases the risks of tangling and the instability of the EDT system. In the deployment process, different initial in-plane/out-of-plane angles, caused by direction error at initial release or the initial selection of ejection, affect the motion of EDT system seriously. In order to solve these problems, firstly, this paper establishes the dynamic model of the EDT system. Then, based on the model, safety metrics of avoiding tangling and assessing system stability during EDT deployment stage are designed to quantitatively evaluate the EDT system security. Finally, several numerical simulations are established to determine the safety ranges of the initial in-plane/out-of-plane angles on the EDT deployment. © 2020 Chinese Society of Aeronautics and Astronautics
关键词 :
Computer aided software engineering Computer aided software engineering Orbits Orbits Space debris Space debris System stability System stability Tetherlines Tetherlines
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GB/T 7714 | CUI, Jing , SHEN, Tao , WEI, Tao et al. Tangling and instability effect analysis of initial in-plane/out-of-plane angles on electrodynamic tether deployment under gravity gradient [J]. | Chinese Journal of Aeronautics , 2021 , 34 (1) : 1-9 . |
MLA | CUI, Jing et al. "Tangling and instability effect analysis of initial in-plane/out-of-plane angles on electrodynamic tether deployment under gravity gradient" . | Chinese Journal of Aeronautics 34 . 1 (2021) : 1-9 . |
APA | CUI, Jing , SHEN, Tao , WEI, Tao , CHU, Zhongyi . Tangling and instability effect analysis of initial in-plane/out-of-plane angles on electrodynamic tether deployment under gravity gradient . | Chinese Journal of Aeronautics , 2021 , 34 (1) , 1-9 . |
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摘要 :
This article proposes a classifier-based approximator to compensate for friction in a high accelerated positioning system. Since friction function is globally non-smooth, an unsupervised k-means clustering algorithm is adopted to classify the friction into micro and macro motion segment, then the frictions are estimated with two sub-approximator in the corresponding segment respectively. Due to the unsupervised classification of friction, the classifier-based approximator can realize universal approximation of nonlinear friction with high precision. Finally, comparative experiments on a high accelerated position system driven by voice coil motors are conducted to verify the effectiveness of the proposed method. The proposed method can reduce the root mean square error (RMSE) of tracking by 57.2%, 19.1%, and 27.4% compared with a parametric model, recurrent neural network (RNN), and incremental extreme learning machine (I-ELM), respectively.
关键词 :
Acceleration Acceleration Adaptation models Adaptation models Approximation algorithms Approximation algorithms Classifier-based approximator Classifier-based approximator Clustering algorithms Clustering algorithms Friction Friction friction modeling friction modeling high accelerated positioning system high accelerated positioning system motion control motion control Motion segmentation Motion segmentation Training Training
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GB/T 7714 | Chu, Zhongyi , Chen, Gen , Cui, Jing et al. Classifier-Based Approximator for Friction Compensation in High Accelerated Positioning System [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2021 , 68 (5) : 4090-4098 . |
MLA | Chu, Zhongyi et al. "Classifier-Based Approximator for Friction Compensation in High Accelerated Positioning System" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 68 . 5 (2021) : 4090-4098 . |
APA | Chu, Zhongyi , Chen, Gen , Cui, Jing , Wang, Siyu , Sun, Fuchun . Classifier-Based Approximator for Friction Compensation in High Accelerated Positioning System . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2021 , 68 (5) , 4090-4098 . |
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摘要 :
This study is to fabricate a composite substrate (Ni7W/Ni12W/Ni7W) with weak magnetization, strong reinforcement, and improved cube texture via Rolling Assisted Biaxially Textured Substrates (RABiTS) route. The formation of cube texture with reduction in twin boundaries due to recrystallization annealing was investigated thoroughly. The optimized recrystallization annealing process revealed 97.4% of cube texture and 83.9% of small angle grain boundaries at an angle of (<10 degrees). Higher W content and presence of defects (holes, dislocations, and grain boundaries) within inner layer of the substrate restricted the formation of cube texture along the normal direction (ND), as compared to rolling direction (RD). Furthermore, significant improvement in mechanical strength (sigma(0.2) = 205 +/- 2 MPa) and saturation magnetization (2.6 emu/g) was found for Ni7W/Ni12W/Ni7W as compared to Ni7.5W substrates.
关键词 :
coated conductors coated conductors compound substrate compound substrate cube texture cube texture highly reinforced highly reinforced low-magnetic low-magnetic
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GB/T 7714 | Cui, J. , Suo, H. L. , Wang, J. H. et al. Effect of Annealing Temperature on Cube Texture Formation in Ni7W/Ni12W/Ni7W Compound Substrate [J]. | PHYSICS OF METALS AND METALLOGRAPHY , 2020 , 121 (3) : 261-268 . |
MLA | Cui, J. et al. "Effect of Annealing Temperature on Cube Texture Formation in Ni7W/Ni12W/Ni7W Compound Substrate" . | PHYSICS OF METALS AND METALLOGRAPHY 121 . 3 (2020) : 261-268 . |
APA | Cui, J. , Suo, H. L. , Wang, J. H. , Grivel, J-C , Kausar, S. , Ma, L. et al. Effect of Annealing Temperature on Cube Texture Formation in Ni7W/Ni12W/Ni7W Compound Substrate . | PHYSICS OF METALS AND METALLOGRAPHY , 2020 , 121 (3) , 261-268 . |
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摘要 :
本发明公开了一种能采集眼震数据的头位测量装置,包括载体、头位角度测量单元、数据传输单元和眼动测量单元,载体为眼镜式框架,载体的前端底部固设有鼻托;眼动测量单元包括两个分别设置于载体两侧的子测量单元,子测量单元包括滑动杆、调节螺杆和红外摄像头,滑动杆一端设置有空槽,空槽套设在载体侧部的固定螺钉上,固定螺钉上螺纹连接有能够与载体将滑动杆夹紧的锁紧螺母,调节螺杆一端螺纹连接有能够紧贴滑动杆另一端两侧的锁紧螺母和调节螺母,红外摄像头固设在调节螺杆另一端;头位角度测量单元包括固设在载体上的IMU传感器,数据传输单元包括电连接的Wi‑Fi模块和电池。本发明在头位测量的同时还能够眼震测量。
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GB/T 7714 | 李莉 , 崔晶 , 曾为鹏 et al. 一种能采集眼震数据的头位测量装置 : CN202011456211.8[P]. | 2020-12-11 . |
MLA | 李莉 et al. "一种能采集眼震数据的头位测量装置" : CN202011456211.8. | 2020-12-11 . |
APA | 李莉 , 崔晶 , 曾为鹏 , 施维 , 楚中毅 . 一种能采集眼震数据的头位测量装置 : CN202011456211.8. | 2020-12-11 . |
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摘要 :
In this work the formation of strong recrystallization cube texture in heavily rolled Ni-9.3 at % W has been studied. During the cold rolling (also known as recovery-rolling) process the deformation texture of Ni-9.3 at % W alloy (further notated as Ni9W) transforms to Copper-type rolling texture, and after annealing, a sharp cube texture is generated. It is remarkably strong recrystallization cube texture, as high as 93 vol %, in metallic materials with low stacking fault energy. The formation mechanism of the cube texture is adopted for the rapid recovery of cube nuclei at the early stage of recrystallization as well as fast migration rate of high angle boundaries between cube grains and deformed microstructure at high temperature. Considering the cold rolling texture of Ni9W, oriented nucleation seems to play more important role in the cube texture formation process. In this article, the relationship between the deformation texture and recrystallization cube texture is discussed.
关键词 :
copper-type rolling texture copper-type rolling texture cube texture cube texture recovery-rolling recovery-rolling size advantage size advantage
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GB/T 7714 | Ji, Y. T. , Suo, H. L. , Ma, L. et al. Formation of Recrystallization Cube Texture in Highly Rolled Ni-9.3 at % W [J]. | PHYSICS OF METALS AND METALLOGRAPHY , 2020 , 121 (3) : 248-253 . |
MLA | Ji, Y. T. et al. "Formation of Recrystallization Cube Texture in Highly Rolled Ni-9.3 at % W" . | PHYSICS OF METALS AND METALLOGRAPHY 121 . 3 (2020) : 248-253 . |
APA | Ji, Y. T. , Suo, H. L. , Ma, L. , Wang, Z. , Yu, D. , Shaheen, K. et al. Formation of Recrystallization Cube Texture in Highly Rolled Ni-9.3 at % W . | PHYSICS OF METALS AND METALLOGRAPHY , 2020 , 121 (3) , 248-253 . |
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摘要 :
Carbon-doped MgB2 polycrystalline bulk samples were prepared by reacting mixtures of Mg and B powders, with and without 0.5 wt.% of the amino acids glycine, alanine, valine, leucine or isoleucine. The amount of carbon introduced into the MgB2 structure depends on the amino acid and is surprisingly higher for glycine, which has the lowest carbon content among the aliphatic amino acids. The critical temperatures of samples doped with all kinds of additives were lower than for the undoped sample. The critical current density was influenced by the additives to different extents, alanine, valine and leucine yielding the best results. The pinning force is also larger for these additives at T < 30 K. An analysis of the normalized flux pinning force behavior leads to the conclusion that point pinning is predominant in all samples.
关键词 :
Alanine Alanine Amino acid Amino acid Carbon Carbon Doping Doping Glycine Glycine Isoleucine Isoleucine Leucine Leucine MgB2 MgB2 Valine Valine
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GB/T 7714 | Grivel, J-C , Cui, J. , Consuelo-Leal, A. . Various effects of aliphatic amino acids on the critical current of the MgB2 superconductor (August, 2020) [J]. | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS , 2020 , 578 . |
MLA | Grivel, J-C et al. "Various effects of aliphatic amino acids on the critical current of the MgB2 superconductor (August, 2020)" . | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 578 (2020) . |
APA | Grivel, J-C , Cui, J. , Consuelo-Leal, A. . Various effects of aliphatic amino acids on the critical current of the MgB2 superconductor (August, 2020) . | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS , 2020 , 578 . |
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摘要 :
针对传统的电容式触觉传感器因存在信号耦合测量,导致切向灵敏度远低于法向灵敏度的问题,基于多层电容结构,设计了一种三轴力解耦测量的高灵敏触觉传感器。传感器分为切向和法向测量单元,切向测量单元采用对称分布的差分式指状结构保证切向高灵敏测量,并结合超薄弹性硅胶介质,提高切向介质层有效压缩刚度,以抑制法向信号的耦合干扰;法向测量单元的介质层采用一种弹性稀疏网状微结构,用于法向高灵敏测量,并通过拓展法向接地极消除切向信号的耦合干扰。在对电容结构参数化设计的基础上,完成触觉传感器的制备,并搭建三轴力测试系统进行测试。结果显示,传感器的切向X,Y以及法向的测量灵敏度为0.206pF/N,0.251pF/N,...
关键词 :
高灵敏 高灵敏 多层电容结构设计 多层电容结构设计 解耦测量 解耦测量 触觉传感器 触觉传感器
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GB/T 7714 | 崔晶 , 张锦涛 , 宋婷 et al. 三轴力解耦测量的高灵敏触觉传感器 [J]. | 光学精密工程 , 2019 , 27 (11) : 2410-2419 . |
MLA | 崔晶 et al. "三轴力解耦测量的高灵敏触觉传感器" . | 光学精密工程 27 . 11 (2019) : 2410-2419 . |
APA | 崔晶 , 张锦涛 , 宋婷 , 楚中毅 . 三轴力解耦测量的高灵敏触觉传感器 . | 光学精密工程 , 2019 , 27 (11) , 2410-2419 . |
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摘要 :
本发明公开了一种能够在狭小空间内牵引负载的机器人,该机器人包括粘附脚掌加载\脱附部分、前臂的运动控制部分、机器人的自由移动部分和相应的电路控制模块及驱动模块组成;粘附脚掌加载\脱附部分用于接触并产生粘附力,以实现蚂蚁的“大力士”的特性;前臂的运动控制部分用于实现两种不同的工作模式的切换;机器人的自由移动部分用于实现机器人的移动;电路控制模块及驱动模块用于提供电机驱动以及舵机的控制信号。本发明采用仿生干粘附材料,同一体积和质量下,粘附力远大于其他材料所能产生的粘附力或摩擦力;同时轮式蚂蚁机器人与传统的足式蚂蚁机器人相比,对于复杂的地面情况适应性更高,可以用于在狭小空间中的牵引负载的操作。
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GB/T 7714 | 崔晶 , 田雨 , 楚中毅 et al. 一种能够在狭小空间内牵引负载的机器人 : CN201910552769.7[P]. | 2019-06-25 . |
MLA | 崔晶 et al. "一种能够在狭小空间内牵引负载的机器人" : CN201910552769.7. | 2019-06-25 . |
APA | 崔晶 , 田雨 , 楚中毅 , 刘慧敏 , 李明昊 . 一种能够在狭小空间内牵引负载的机器人 : CN201910552769.7. | 2019-06-25 . |
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摘要 :
本发明公开了一种蚕茧自动分选装置,涉及机电一体化领域,该装置针对蚕茧生产过程中的蚕茧进行自动化筛选,解决了蚕茧分选中效率低、人工劳动强度大的问题。装置采用链条和托辊相结合的方式实现蚕茧的输送,竹节状的托辊等距的安装在两条辊子链条之间,每两个托辊之间形成四个凹槽,每个凹槽放置一枚蚕茧。竹节状托辊围绕自身心轴旋转,托辊转动带动蚕茧翻转,在蚕茧翻转过程中工业相机采集蚕茧的图像,采集到的图像被输入到卷积神经网络模型中进行分类。主控系统接收模型的识别结果,控制拨指实现蚕茧的筛选。装置在不破坏蚕茧的情况下,通过一台相机实现了蚕茧的多角度、实时在线检测。
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GB/T 7714 | 崔晶 , 张祖魁 , 楚中毅 et al. 一种蚕茧自动分选装置 : CN201910552778.6[P]. | 2019-06-25 . |
MLA | 崔晶 et al. "一种蚕茧自动分选装置" : CN201910552778.6. | 2019-06-25 . |
APA | 崔晶 , 张祖魁 , 楚中毅 , 冯玮 , 王伟 . 一种蚕茧自动分选装置 : CN201910552778.6. | 2019-06-25 . |
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