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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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A new bioreactor for compound loading with torsion and compression

A new bioreactor for compound loading with torsion and compr...

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第五届国际仿生工程学术大会(ICBE2016)

作者： Ke Li Chunqiu Zhang School of mechanical engineering Tianjin University of Technology Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechanical System

This paper presents a new type of multifunctional bioreactor, which is to provide cell tissue a mechanical environment which is close to the real situation. This bioreactor is based on the concept of fatigue machine, add torsion module to compress and tension module, with new design of both loading device and culturing device by modern CAD technology. Driven by voice coil motor, step motor and a well designed mechanical structure, this machine has excellent controlling performance and no accumulated error, easy to adjust operating height, loading frequency, compressing stroke and torsioning angle. It has different loading modes, with compression or torsion separately, or providing compound load with both torsion and compression. With a delicate culturing device, the height and the limit of loading head is easy to adjust accordingly, it can also provide liquid environment during the loading process, which is closer to biological characteristics and physiological environment. After simple refit, it's also able to be used as a tension machine. This machine supplies different mechanical environment for biomechanics research to make related experiments more effective and accurate.

关键词： bioreactor compound loading torsion and compression

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The Prediction Model of Surface Roughness Based on Experiments of Turning Titanium Alloy

The Prediction Model of Surface Roughness Based on Experimen...

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IEEE International Conference on Mechatronics and Automation

作者： Cuilei Yang Qingchun Zheng Yahui Hu Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System Tianjin University of Technology Tianjin 300384 China

ISBN: (纸本)9781509023974

The experiments of turning titanium alloy are carried out by using central composite design, the influences of cutting speed, feed rate and cutting depth on surface roughness are analyzed. The surface roughness prediction model is established based on the response surface method. The significance of the regression equation is validated and the influences of the cutting parameters on surface roughness are compared. The results show that: within the range of cutting parameters used in the experiments, the most significant parameter on surface roughness is given by feed rate, followed by cutting depth, and the cutting speed has minimal effect on surface roughness;the prediction model is significant. It can be used to select various suitable parameters before the machining processing to predict and control the surface roughness.

关键词： Titanium alloy Surface roughness Turning Parameters

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Calculations of the Acceleration of Centrifugal Loading on Adherent Cells

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IOP Conference Series: Materials Science and Engineering 2017年第1期224卷

作者： Kang Chen Yang Song Qing Liu Chunqiu Zhang Tianjin Key Laboratory of the Design Intelligent Control of the Advanced Mechatronical System School of Mechanical Engineering Tianjin University of Technology Tianjin 300384 China

Studies have shown that the morphology and function of living cells are greatly affected by the state of different high acceleration. Based on the centrifuge, we designed a centrifugal cell loading machine for the mechanical biology of cells under high acceleration loading. For the machine, the feasibility of the experiment was studied by means of constant acceleration or variable acceleration loading in the Petri dish fixture and/or culture flask. Here we analyzed the distribution of the acceleration of the cells with the change of position and size of the culturing device quantitatively. It is obtained that Petri dish fixture and/or culture flask can be used for constant acceleration loading by experiments; the centripetal acceleration of the adherent cells increases with the increase of the distance between the rotor center of the centrifuge and the fixture of the Petri dish and the size of the fixture. It achieves the idea that the general biology laboratory can conduct the study of mechanical biology at high acceleration. It also provides a basis for more accurate study of the law of high acceleration on mechanobiology of cells.

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Investigation of Correlation between the Temperature on Air-Snow and Snow-Ice Interfaces and the Atmospheric Air Temperature

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Journal of Earth Science and Engineering 2016年第5期6卷 245-253页

作者： Vadim K. Goncharov Natalia Yu. Edush Ekaterina S. Zueva Natalia Yu. Klementeva Jianmin Qin Liqin Cui Li Zhang Xiao Deng Peng Cheng State Marine Technical University of Saint-Petersburg Russia Krylov State Research Centre Saint-Petersburg Russia College of Physics and Optoelectronic Taiyuan University of Technology Taiyuan China Key Laboratory Advanced Transducers and Intelligent Control System Ministry of Education Taiyuan University of TechnologyTaiyuan China

Solution of the practical problems of the ice engineering requires the data about the strength of the ice cover that depends upon its temperature. In most cases, the snow lies on the ice cover and the ice temperature differs from the atmospheric air temperature. To reveal the correlation of the air temperature with temperature on interfaces air-snow and snow-ice, the known in the thermophysics solution of the problem of the heat transfer through the multilayer plate was applied. Derived solution connects the temperature of air and temperature on the snow-ice interface and satisfactory correlates with data of the field measurements of the temperature within snow layer and ice cover and ice thickness on the Heilongjiang （Amur） River. Results of investigation are recommended for the ice temperature evaluation in engineering practice.

关键词： Snow ice air temperature interface ice thickness.

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Realizing mode conversion and optical diode effect by coupling photonic crystal waveguides with cavity

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Chinese Physics B 2015年第9期24卷 284-288页

作者：叶寒张金倩楠俞重远王东林陈智辉 State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory School of PhysicsUniversity of Chinese Academy of Sciences Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi ProvinceTaiyuan University of Technology

We propose a novel two-dimensional photonic crystal structure consisting of two line defect waveguides and a cavity to realize mode conversion based on the coupling effect. The W1/cavity/W2 structure breaks the spatial symmetry and successfully converts the even（odd） mode to the odd（even） mode in the W2 waveguide during the forward（backward）transmission. When considering the incidence of only the even mode, the optical diode effect emerges and achieves approximate 35 d B unidirectionality at the resonant frequency. Moreover, owing to the narrow bandpass feature and the flexibility of the tuning cavity, utilization of the proposed structure as a wavelength filter is demonstrated in a device with a Y-branch splitter. Here, we provide a heuristic design for a mode converter, optical diode, and wavelength filter derived from the coupling effect between a cavity and adjacent waveguides, and expect that the proposed structure can be applied as a building block in future all-optical integrated circuits.

关键词： mode conversion optical diode photonic crystal

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Comparative Study of Two 2-RPU+SPR Parallel Manipulators

Comparative Study of Two 2-RPU+SPR Parallel Manipulators

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World Congress on intelligent control and Automation

作者： Qiang Yan Bin Li Yangmin Li Xinhua Zhao Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control School of Mechanical Engineering Tianjin University of Technology Tianjin 300191 China

ISBN: (纸本)9781467384155

A comparative study of two over-constrained 2-RPU+SPR parallel manipulators (PM) is studied in terms of workspace and transmission performance in this paper. The two 2-RPU+SPR PMs have identical kinematics limbs, but some differences exist in terms of the joints distribution. The kinematics, the workspace and the transmission performance are studied and simulation examples are presented to demonstrate the differences between the two PMs. This study provides insights into the two parallel manipulators with identical limbs but with different joints distribution.

关键词： Decision support systems TV intelligent control Automation Senior members

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The design of dummy ROV electric-drive seven functions manipulator

The design of dummy ROV electric-drive seven functions manip...

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2016 3rd International Conference on Materials Engineering,Manufacturing Technology and control(ICMEMTC 2016)

作者： Zaiyu Chen Meina Guo Zhenzhong Liu Lianyu Zhao Offshore Oil Engineering Co. Ltd. Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System Tianjin University of Technology

With the deepening of the Marine development, underwater constructing often need to use the ROV. In order to verify the construction scheme, ensuring construction efficiency, the staff will use ROV or Dummy ROV on land to simulate construction. As the main body of the ROV, the manipulator is the execution part of the system. It is the core of the whole system;all of the drive and control are around it. It references the mature underwater manipulator, and draw lessons from the domestic manipulator design experience. The design adopts electric drive, and the joints torque were calculated and simulated by the Solid Works motion analysis software.

关键词： Dummy ROV seven functions manipulator manipulator design

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The Frame Structure Design of three Lifting Point Dummy ROV

The Frame Structure Design of three Lifting Point Dummy ROV

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2016 3rd International Conference on Materials Engineering,Manufacturing Technology and control(ICMEMTC 2016)

作者： Xingwei Guo Jie Song Zhenzhong Liu Offshore Oil Engineering Co. Ltd. Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System Tianjin University of Technology

Research the depth of 3000 m Work-Class ROV as mock object and develop a ROV for land test. This device is set three lifting point in the top. The rope connecting the front two lifting point is fixed, the rope connecting the rear lifting point change the length by motor. All of those lifting point are in order to achieve the function of forerake and hypsokinesis. The Dummy ROV can displace the real ROV to simulate the land construction, improve the efficiency of ocean construction and reduce the cost of experiment.

关键词： Lifting point dummy ROV frame structure

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Design and kinematic simulation of a novel exoskeleton rehabilitation hand robot

Design and kinematic simulation of a novel exoskeleton rehab...

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IEEE International Conference on Mechatronics and Automation

作者： Shuxiang Guo Weijie Zhang Jian Guo Jiange Gao Yuye Hu Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems and Biomedical Robot Laboratory Tianjin University of Technology Tianjin China Intelligent Mechanical Systems Engineering Department Kagawa University Takamatsu Japan Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System Tianjin China

ISBN: (纸本)9781509023974

The rehabilitation exoskeleton robot is more and more used in the assisting stroke patients in implementing rehabilitation training. In this paper, a novel exoskeleton hand robot which was driven by cable has been proposed to aim at helping varieties of paralyses patients recover motor function. This exoskeleton hand rehabilitation robot system mainly consists of exoskeleton hand robot, EEG system, motor controllers unit, some sensors and a workstation. And the hand exoskeleton mechanism was portable, wearable and adjustable for patients doing home rehabilitation training. Based on the parameters from human hand, the kinematic model of hand robot was established to be used in designing and the kinematic simulation experiments about this exoskeleton hand robot were done. Through the simulation software ADAMS (Automatic Dynamic Analysis of Mechanical systems), the parameters of position, angle velocity and angle accelerated velocity (PVA) of proximate inter-phalanger (DIP) distal inter-phalanger joint were simulated. And then, the movement situation of the DIP joint was obtained according to the data from the position encoder. So the velocity curve and accelerated velocity curve were obtained by calculating the actual position function derivation. The simulated results showed that this exoskeleton hand robot has high movement ability to finish the continuous passive motion (CPM). Beside that, a comparison test was done to verify whether there were some motion blocks in wearing exoskeleton robot. Through analyzing the experimental data, the error between the actual position and the simulated position of the PIP joint of the finger was very small which verified the small interference of robot. These experiments demonstrated that the exoskeleton hand robot has high efficiency movement ability for stroke patients who need to do the finger rehabilitation training. In the future, the optimization design of the exoskeleton hand robot will be done in order to improve more mov

关键词： Exoskeletons Thumb Robot sensing systems Joints Training

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