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第二届仪器科学与技术国际学术研讨会

作者： Ji Shiming Zhuang Hongyu Zhang Li Zhang Libin Wan Yuehua Yuan Julong zhejiang university of technology .China

＜正＞ Primary factors impeded advances in the development of TCMS are analyzed. Some direct and indirect methods for tool wear condition monitoring are introduced. The direct methods include proximity method, radioactive method, contact resistance method, optical method, machine vision and image processing method. The indirect methods include cutting force method, acoustic emission method etc. And finally the multi-information fusion techniques in TCMS are discussed.

关键词： Tool condition monitoring cutting tool wear

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Iterative Learning Identification and Control of Discrete Time-varying Systems

Iterative Learning Identification and Control of Discrete Ti...

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第二十六届中国控制会议

作者： Sun Mingxuan,He Xiongxiong College of Information Engineering,zhejiang university of technology,Hangzhou 310032,P.R.China

This paper presents discrete iterative learning control for systems with time-varying parametric *** prototype iterative learning identification algorithms,iterative learning projection and iterative learning least squares,are pre-sented for estimating the time-varying *** main properties of the learning algorithms are explored for establishing the stability and convergence of the control *** proof is based upon the use of a key technical lemma,which ex-tends the existing one and tailored for the purpose of analysis in the iteration *** is shown that the complete tracking is achieved for every instant except for the initial instant,while the input and output signals of the controlled system remain *** proposed scheme in this paper is applicable to tracking iteration-varying trajectories without any restriction on initial repositioning.

关键词： Projection Algorithm Least Squares Iterative Learning Control Time-Varying Parametrization

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2-氨基-3-硝基吡啶和2-氨基-5-硝基吡啶的CI-MS-MS分析

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分析测试学报 2003年第5期22卷 67-69页

作者：李祖光浙江工业大学化学工程与材料学院浙江杭州310014

2-氨基-3-硝基吡啶和2-氨基-5-硝基吡啶的EI-MS质谱图接近,单纯通过EI-MS质谱图较难区分这两种异构体,作者以甲烷为反应气对2-氨基-3-硝基吡啶和2-氨基-5-硝基吡啶进行化学电离,并利用离子阱质谱的串联质谱技术在离子阱内以He作碰撞气... 详细信息

2-氨基-3-硝基吡啶和2-氨基-5-硝基吡啶的EI-MS质谱图接近,单纯通过EI-MS质谱图较难区分这两种异构体,作者以甲烷为反应气对2-氨基-3-硝基吡啶和2-氨基-5-硝基吡啶进行化学电离,并利用离子阱质谱的串联质谱技术在离子阱内以He作碰撞气进行碰撞诱导裂解,所得的CI-MS-MS质谱图表明,两者之间存在明显的差别,可用于2-氨基-3-硝基吡啶和2-氨基-5-硝基吡啶的鉴别。

关键词： 2-氨基-3-硝基吡啶 2-氨基-5-硝基吡啶 CI-MS-MS分析质谱分析离子阱质谱化学电离

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维普期刊数据库

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具有时变参数不确定性线性系统的最优保成本控制

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湘潭矿业学院学报 1998年第4期13卷 50-55页

作者：杨马英俞立浙江工业大学信息工程学院浙江杭州310032

对一类具有块对角参数不确定性的系统，导出了二次保成本状态反馈控制律存在的条件，进而证明了这个条件等价于一组线性矩阵不等式的可解性问题，并通过这组线性矩阵不等式的解，给出了系统二次保成本控制律的一个参数化表示．在此基础... 详细信息

对一类具有块对角参数不确定性的系统，导出了二次保成本状态反馈控制律存在的条件，进而证明了这个条件等价于一组线性矩阵不等式的可解性问题，并通过这组线性矩阵不等式的解，给出了系统二次保成本控制律的一个参数化表示．在此基础上，将最优保成本控制律的设计问题转化成一个凸优化命题，而后者可以用现有的有关线性矩阵不等式软件求解．最后，给出了一个例子，以说明本文提出的方法，并和现有方法作了比较．表1。

关键词：保成本控制不确定性鲁棒控制线性矩阵不等式

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Nature-based Design starts with "Green Design"

Nature-based Design starts with "Green Design"

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International Conference on Engineering and Business Management（EBM2010)

作者： Xin Lv 1 Xiao Ye 2 1. Industrial design institutes zhejiang university of technology Hang Zhou China 310023 2. Department of Art zhejiang Shuren university Hang Zhou China 310015

Focusing on nature, the article discusses that design is not only the form and consideration for technology, but also should concern more about the underlying profound historical background and ecolog

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Research on Double Sided Polishing technology for Silicon Wafer

Research on Double Sided Polishing Technology for Silicon Wa...

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The 9th International Symposium on Advances in Abrasive technology

作者： X.D. Hu, Y.F. Jin, W. Li , X.Z. Hu The MOE Key Laboratory of Mechanical manufacture and Automation, zhejiang university of technology Engineering College, zhejiang Ocean university

Double sided polishing is one of the main processes to access ultra-smooth surface of semiconductor wafers. This paper introduces the key technologies of developing double sided polishing machine for 4" wafers, and analyzed the polishing processes for 4" Si wafers base on the machine developed. Experiment results showed that the equipment can finish a batch 4" Si wafers (thickness 0.5mm) in 40 minutes, the average removal rate is 0.25μ/min, and the surface quality can reach Ra 0.401nm, GFLD ±1.63μm.

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Research on Ultrasonic C-scan Technique For Axle Housing

Research on Ultrasonic C-scan Technique For Axle Housing

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ICEMI'2005第七届国际电子测量与仪器学术会议

作者： Wu Ruiming1 Zhou Xiaojun2 (1 Department of Electromechanical Engineering zhejiang university of Science and technology Hangzhou 310012 China) (2 College of Mechanical and Energy Engineering zhejiang university Hangzhou 310027 China)

In the ultrasonic C-scan of axle housing, the probe is difficult to aim at the normal surface direction. To solve the problem, profile measurement and restructured modeling were used to track the surf

关键词： Axle housing digitalization ultrasonic C-scan profile measurement

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A STUDY ON GEAR-BOX’S RECONFIGURATION MODELING

A STUDY ON GEAR-BOX’S RECONFIGURATION MODELING

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第七届海内外青年设计与制造科学会议

作者： Ying Fuqiang Lv Yuanjun Lou Min and Sun Zhongwei The MOE Key Laboratory of Mechanical manufacture and Automation zhejiang university of technology

＜正＞The existing researches on reconfiguration design mainly focuses on the concepts, so it is somewhat limited when it comes to directing the real product design. Modeling is a key problem in product reconfiguration and is also a basic and universal engineering problem in many design fields, which has thus attracted the attention of designers in many industries. Gear-box’s reconfiguration modeling is introduced to support the evolutionary aspect of reconfiguration design. The interface technique of gear-box and the formation of inner box are considered to be two separate, but dependent aspects. Topology and matrix are used to associate different modules to a single interface and achieve structural modification in parameter values. The aim of research dedicates to feasible results as well as retaining the maximum functional range. The framework of the box body can be described and then can be tested in ADAMS. At last, the article presents its practical application.

关键词： gear-box reconfigurability constraint matrix

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THE MULTI-AGENT MODELLING OF PRODUCTION LOGISTICS SYSTEM AND THE SHOP DYNAMIC SCHEDULING OPTIMIZATION IN DISCRETE MANUFACTURING ENTERPRISES

THE MULTI-AGENT MODELLING OF PRODUCTION LOGISTICS SYSTEM AND...

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2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： CHEN Yong, WANG Xiao, LIN Feilong, TANG Kefeng Institute of Industrial Engineering, zhejiang university of technology, Hangzhou 310032, China

At present, the production logistics is becoming an important component for the manufacturing industry to upgrade the core competitiveness. The scheduling of the enterprise’s production logistics syst

关键词： Discrete manufacturing enterprise multi-agent modelling production logistics system scheduling optimization.

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Study on Inner Flow Field Infection Caused by the Number of Impellers of Low-Ratio-Rev Open-Impeller Centrifugal Pump

Study on Inner Flow Field Infection Caused by the Number of ...

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第五届流体传动与控制国际会议

作者： Zhang Jianci~1 Zhu Zuchao~(2*) 1)Dep.of Mechanical & Electrical Control Engineering of zhejiang university of technology West Branch,Quzhou,zhejiang,324000,China 2)zhejiang Provincial Key Lab of Modern Textile Machinery,zhejiang Sci-Tech university,Hangzhou 310018,China

According to the geometry of flow path and characteristic of flow field of Iow-ratio-rev open-impeller centrifugal pump impellers,S-A Turbulent flow model was adopted,and high quality of configurational sticking gridding was established. Combined with the Reynolds times averaging method and wall function,three-dimensional Turbulent flow calculation was done for inner flow field of impellers. According to the calculation results,the infection of flow velocity distribution,pressure distribution and pump performance of Iow-ratio-rev centrifugal pump caused by the number of impellers was analyzed and summarized,the flow law of Turbulent flow in impellers was developed,and theoretic foundation of optimization design for Iow-ratio-rev centrifugal pump was presented in this thesis.

关键词： Centrifugal pump Inner flow field Numerical value simulation Results analysis

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