检索结果-内蒙古大学图书馆

第三届新型太阳能电池学术研讨会

作者： Yanxia Cui Yuying Hao Peiqian Tong Fan Yang Yang Hao Furong Zhu Key Laboratory of Advanced Transducers and Intelligent Control System (Ministry of Education) Taiyuan University of Technology Department of Physics and Institute of Advanced Materials Hong Kong Baptist University

Organic photovoltaic(OPV)cells have been thoroughly investigated in the past decade owing to the advantages of low cost,flexibility,light weight,easy fabrication,semi-transparency and colorfulness,*** the efficiency o... 详细信息

关键词： OPV PCE Surface Plasmon Assisted Organic Photovoltaic Cells

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Finite Element Analysis on Loosen Teeth using Fibrous Periodontal Splint Restoration

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IOP Conference Series: Materials Science and Engineering 2018年第1期417卷

作者： Chengshui Ding Xue Shi Yang Song Lulu Qiu Xinyue Li Chunqiu Zhang Tianjin Key Laboratory of the Design Intelligent Control of the Advanced Mechatronical System National Demonstration Center for Experimental Mechanical and Electrical Engineering Education School of Mechanical Engineering Tianjin University of Technology Tianjin 300384 China Periodontitis Department Tianjin Stomatological Hospital Tianjin 300384 China

Objective To investigate the effect of fibre periodontal splint restoration on mandibular anterior teeth displacement and periodontal membrane stress. Methods Micro-CT scanning technology, combined with Mimics, Geomagic studio and SolidWorks were used to establish 3D dental models of mandibles with teeth and the models fibre periodontal splint restoration; the models of mandibular anterior loosen teeth was constructed under 30 degree oblique 25N loading on the labial and lingual sides respectively. Then, under different angles force with or without the splint, the analysis on dental mechanical state are given. Results It was determined that the sum of the maximal displacement of the loosen tooth model at the lingual and labial sides was 1 mm, which represented the degree I loosen model. After splint repair on the model, the maximal displacement of loosen tooth decreased 47.7%, 85.1% and 85.8% at 0 degree, 15 degree and 30 degree forces respectively, and the maximum stress of periodontal membrane decreased by 22.3%, 61.2% and 74.9%. Conclusion Fixation of loosen teeth through fibre periodontal splints can reduce the maximum stress of periodontal membrane and the maximal displacement of the teeth, thus ensuring the stability of loosen tooth.

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基于特征线—快速傅里叶变换法的轴向柱塞泵流固耦合振动特性研究（英文）

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机床与液压 2016年第6期44卷 47-52页

作者： Yang LIU Bing WU Jia-hai HUANG Key Lab of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi Province Taiyuan University of Technology Taiyuan 030024 China

Axial piston pump is fluid-solid coupling mechanical equipment. Its vibration characteristic is compli-cated when working. This paper uses the characteristic line-fast Fourier transform method （MOC - FFT） in theplunger pump to study vibration characteristics caused by fluid-solid coupling. Using the MOC to solve the fluid-solid interaction＇ s （FSI） partial differential equations （ 1 ）, then the vibration characteristics of pipeline system intime domain can be achieved. Using the fast Fourier transform method, the natural frequencies of the piping sys-tem can be obtained. It has the advantage of characteristic line method for the coupling vibration model is clear,easy to calculate; And using the method of fast Fourier transform the vibration characteristics to the frequency do-main. According to study the vibration characteristics in the frequency domain, this paper achieved the frequencywhich the type of A10V pump should be avoided when working and change rules of the angle of swash plate, pres-sure and the speed of rotation how to affect the intensive frequency vibration spectrum which is caused by the FSI.

关键词： Characteristic line-fast Fourier transform method, Axial piston pump, Fluid-solid interaction, Vibra-ion characteristics

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Corrigendum to “Influence of Na doping on the magnetic properties of LaFeO 3 powders and dielectric properties of LaFeO 3 ceramics prepared by citric sol-gel method” [Ceram. Int. 43 (2017) 7922–7928]

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Ceramics International 2017年第18期43卷 17247-17247页

作者： Ensi Cao Yanrong Qin Tingting Cui Li Sun Wentao Hao Yongjia Zhang Key Lab. of Advanced Transducers & Intelligent Control System College of Physics & Optoelectronics Taiyuan University of Technology Taiyuan 030024 People's Republic of China

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Experimental Study On The Identification Model Of Dynamic Milling Force Coefficient

Experimental Study On The Identification Model Of Dynamic Mi...

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2016 4th International Conference on Machinery,Materials and Computing Technology(ICMMCT 2016)

作者： Xinghua Niu Tianding Wang Tiemin Zhao Qianyou Huang Tianjin University of Technology Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System

The identification model of milling force coefficient is established using the model of dynamic milling force and the regression analysis of the milling force experiment data. On the basis of the existing milling force model, by simplifying and calculation, it can get the relational expression between milling force coefficient and average value of the milling force. Arranging the milling force experiment and measuring average milling force, the experiment results of milling force coefficient can be calculated. Then, the polynomial expression of identification model of milling force coefficient is established, and its coefficient values can be got by regression analysis. Finally, the accuracy and applicability of the identification model is verified by experiment. The experimental results show that the prediction results of the model are accurate and reliable, and can meet different processing conditions, provide the theoretical basis and reference for the further study of milling process and optimization.

关键词： milling force model coefficient identification orthogonal experiment regression analysis

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Design and kinematics analysis of a novel liquid-brewing steamer feeding robot

Design and kinematics analysis of a novel liquid-brewing ste...

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2016年土木、建筑与环境工程国际学术会议

作者： Jiashuang Zhang Bin Li Tongchen Zhang Xinhua Zhao Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control Tianjin University of Technology

ISBN: (纸本)9781138065833

In this paper,a novel steamer feeding robot is designed and *** compared to the currently used steamer feeding robot,the feeding process of the proposed robot is continuous,and this way will greatly improve the efficiency and quality of the feeding ***,the mechanical structure and kinematics of the novel steamer feeding robot are introduced and *** then,the control system of the robot is ***,experiment evidences are given to prove the efficiently of brewing by using this robot.

关键词： Design and kinematics analysis of a novel liquid-brewing steamer feeding robot

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Distributed fiber-optic vibration detection system

Distributed fiber-optic vibration detection system

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2016 13th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)

作者： Yu Wang Baoquan Jin Yuncai Wang Dong Wang Xin Liu Qi Dong Key Laboratory of Advanced Transducers and Intelligent Control Systems (Ministry of Education and Shanxi Province) College of Physics and Optoelectronics Taiyuan University of Technology

In this paper the preliminary research results of distributed optical fiber vibration detection system based on-OTDR are introduced This technology has a fine positioning accuracy of less than 20 m and multi-point positioning capability for the vibration signal within a 4 km sensing fiber. The dynamic frequency range has been currently validated between 1 Hz and 60 Hz. These results provide the reference for the vibration detection in the mechanical fault diagnosis.

关键词： vibration detection fiber optic sensor Ф-OTDR mechanical fault diagnosis

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Short-term creep behavior in P91 heat-resistant steel at low stress

Short-term creep behavior in P91 heat-resistant steel at low...

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Chinese Materials Congress on Methods of Design and Characterization of Materials, Research and Development of Technological Processes, 2015

作者： Zhao, Pengshuo Shen, Junjie Zhang, Hui Tianjin key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System School of Mechanical Engineering Tianjin University of Technology 391 Binshui Road Xiqing District Tianjin China Tianjin Entry-Exit Inspection and Quarantine Bureau China

ISBN: (纸本)9783038357629

P91 heat-resistant steel is widely used in the high temperature of piping components of thermal power plants and nuclear power plants. In these conditions, the typical failure of P91 is mainly caused by creep at low stress. In this investigation the short-term creep behavior in P91 at low stress was investigated by helicoid spring creep test due to its high strain-sensitivity. The helicoid spring creep was based on the assumption of pure torsion. The mechanics field was firstly studied by ANSYS finite-element simulation to find the establishing conditions of pure torsion. Secondly, the creep properties of P91 were studied under the conditions of the temperatures of 0.38Tmm and the stresses of 14.6 MPa, 25 MPa, 34 MPa, respectively. The ANSYS finite-element simulation shows that the creep deformation is considered to be pure torsion when the pitch spacing of coil is between 2mm to 4mm. The creep curves show "Normal type ", and "the stress exponent" is n=0.9. © 2016 Trans Tech Publications, Switzerland.

关键词： Creep

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Structure design and dynamic modelling of a novel modular self-reconfigurable robot

Structure design and dynamic modelling of a novel modular se...

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IEEE International Conference on Mechatronics and Automation

作者： Jie Huang Weimin Ge Xiaofeng Wang Jun Liu Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System Tianjin University of Technology Tianjin China

ISBN: (纸本)9781509023974

Reconfigurability of the modular robot is becoming curial to be a high flexibility for the wide varieties of tasks and environments. In this paper, a novel self-reconfigurable modular robot called M 2 sbot is designed, which has the approximate cuboid shaping structure. The unit model is with one active and five passive connection surfaces, compact structure and flexible motion. It is characterized by using the unique hook-claw docking mechanism as the docking part of the neighbor modular. And the responding control system based on STM32F103VET6 is also implemented. The forward kinematic equations of the chain robot are established, and then the dynamic equation is generated by the recursive Newton-Euler method based on the global matrix description. Finally, the calculation and simulation analysis of the six-module configuration with two branches demonstrates the feasibility of the proposed method in the generation of motion equation.

关键词： Gears Mathematical model Kinematics DC motors Robot sensing systems Robot kinematics

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Multiwavlength Brillouin Erbium fiber laser sensor with high resolution

Multiwavlength Brillouin Erbium fiber laser sensor with high...

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Conference on Lasers and Electro-Optics Pacific Rim

作者： Yi Liu Mingjiang Zhang Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi Province Taiyuan University of Technology Taiyuan 030024 P. R. China Institute of Optoelectronic Engineering College of Physics and Optoelectronics Taiyuan University of Technology Taiyuan 030024 P. R. China

ISBN: (纸本)9781509062904

Multiwavelength Brillouin Erbium fiber laser with ultra-narrow bandwidth filter is used as a temperature sensor. It has less than 10~(-3) ℃ resolution at the 3rd-order Stokes in the short term. 3.104 MHz/℃ sensitivity of the 3rd-order Stokes wavelength are demonstrated, which is three times that of the 1st-order Stokes wavelength. A less than 0.2 ℃ temperature error is obtained for every Stokes wavelength. This proposal can provide a feasible temperature sensing scheme with high sensitivity, high precision and low frequency detection.

关键词： Fiber laser sensor Multiwavelength Brillouin Erbium fiber laser High resolution

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