检索结果-内蒙古大学图书馆

4th International Conference on advanced Design and Manufacturing Engineering, ADME 2014

作者： Yin, Hong Mei Wang, Mu Lan Ye, Chang Huai'an College of Information Technology Huaian China Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Huaian China

ISBN: (纸本)9783038352570

Researched the virtual-actual integrated technology based on the computer simulation test, 3-D NC test platform was mentioned using ′PC+Motion controller′as the core. In the VC++6.0 environment, the MFC series and the GT motion controller dynamic link library was used to realize multi axis linkage control function and 3-D NC control system software was developed. The “id = 0” vector control strategy and the SimPowerSystem module library was used to establish the system simulation of PMSM vector control model, Matlab software and InTouch software were used to realize the virtual simulation and associated debugging for control system and mechanical transmission system, the feasibility of numerical control testing platform was verified. © (2014) Trans Tech Publications, Switzerland.

关键词： controllers

来源：评论

学校读者我要写书评

暂无评论

Experimental research on cutting temperature of AISI 1045 in high speed milling process

Experimental research on cutting temperature of AISI 1045 in...

引用

2013 3rd International Conference on advanced Materials and Engineering Materials 2013, CAMEM 2013

作者： Feng, Yong Wang, Mu Lan Wang, Bao Sheng Hou, Jun Ming School of Mechanical Engineering Nanjing Institute of Technology Nanjing China Jiangsu Key Laboratory of Advanced Numerical control technology Nanjing Institute of Technology Nanjing China

ISBN: (纸本)9783038350255

The aim of this paper is to investigate the time dependence distribution of workpiece cutting temperature in milling process. An experimental system used to achieve a measurement of cutting temperature in high speed milling is designed by use of the thermocouple and infrared thermal imager. The general regularity of temperature distribution is concluded, and the influence of the process variables such as cutting speed, cutting depth, etc. on the temperature distribution was investigated in detail. All the experiment results can be effective used to develop a new non-contact soft-sensing method for high speed cutting temperature prediction. © (2014) Trans Tech Publications, Switzerland.

关键词： Thermocouples

来源：评论

学校读者我要写书评

暂无评论

Distributed intelligent field information processing for agile manufacturing

Distributed intelligent field information processing for agi...

引用

2014 International Conference on Manufacturing technology and Electronics Applications, ICMTEA 2014

作者： Zhu, Wen Bin Zhu, Xiao Chun Wang, Mu Lan Ding, Wen Zheng Department of Electrical Engineering North Carolina State University Raleigh United States School of Automation Nanjing Institute of Technology NanjingJiangsu China Jiangsu Key Laboratory of Advanced Numerical Control Technology NanjingJiangsu China

ISBN: (纸本)9783038353287

The ability of acquiring and processing information in manufacturing influences agile of manufacturing system. According to the idea that networked field information processing is realized based on intelligent nodes of field-bus technology, distributed intelligent field information processing flow is researched to synthesize multiple functions such as information gathering, information processing, warning system and field control. The method of information represented and collected was put forward. The multilayer data fusion model of distributed intelligent field information processing is built. Then the distributed LonWorks fieldbus monitoring model (DLFMM) based on LonWorks fieldbus technology is established. A monitoring system of a rail vehicle automatic door factory is shown as an example to illustrate design strategy of monitoring system based on DLFMM. This monitoring system shows that the model of distributed intelligent field information processing, DLFMM and the extraction and representation of information flow discussed in this paper are reasonable and applicable. © (2014) Trans Tech Publications, Switzerland.

关键词： Data fusion

来源：评论

学校读者我要写书评

暂无评论

Study and design of feedrate scheme in CNC interpolation

Study and design of feedrate scheme in CNC interpolation

引用

3rd International Conference on Materials Science and Information technology, MSIT 2013

作者： Zhu, Hao Liu, Jing Nan Yang, An Kang Wang, Mu Lan School of Automation Southeast University Nanjing Jiangsu 210096 China Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Nanjing Jiangsu 211167 China

ISBN: (纸本)9783037857700

In this paper, the usual feedrate control methods are introduced. The characters of them are analyzed. The shortcomings such as the discontinuity of acceleration and jerk in these methods will influence the accuracy of CNC. In order to overcome the weaknesses, a novel feedrate scheme based on fractional power polynomial is proposed. The constraint condition is discussed. The jerk-time curves, acceleration-time curves feedrate-time curves are contrasted. The simulation result shows that this feedrate scheme can fulfill the requirements of high-speed and high-accuracy through the interpolation process. © (2013) Trans Tech Publications, Switzerland.

关键词： Interpolation

来源：评论

学校读者我要写书评

暂无评论

Practical visual efficiency management system for CNC machine tools based on embedded microprocessor and cloud computing

引用

Information technology Journal 2013年第22期12卷 6577-6582页

作者： Mu-Lan, Wang Kai-Cheng, Fei Bo, Wang Meng-Jia, Chen Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Jiangsu 211167 China Nanjing Kangni Electromechanical Co. Ltd Nanjing Jiangsu 210013 China

The field monitoring devices were developed for Computer numerical control (CNC) machine tools based on embedded system, using STM32 series microprocessor, which can acquire the operating parameters of machine tools. The processed data were uploaded to the host computer integrated management system by Zigbee wireless communication network, making full use of the concept and architecture of cloud computing. According to the measured physical parameters of CNC manufacturing process, the corresponding mathematical models and soft-sensing algorithms can be constructed and utilized. At the same time, the actual operation situation of the manufacturing workshop and the efficiency of CNC machine tools were visual remote monitored, statistical analyzed and comprehensive managed based on LabVIEW software platform. © 2013 Asian Network for Scientific Information.

关键词： Zigbee

来源：评论

学校读者我要写书评

暂无评论

Research on servo system for CNC machine tool driven by permanent magnet synchronous torque motor

Research on servo system for CNC machine tool driven by perm...

引用

2012 International Conference on Materials Engineering and Automatic control, ICMEAC 2012

作者： Wang, Mulan Xu, Kaiyun He, Chuan Zhou, Lei Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Nanjing Jiangsu 211167 China School of Automation Nanjing Institute of Technology Nanjing Jiangsu 211167 China School of Mechanical Engineering Changzhou University Changzhou Jiangsu 213016 China

ISBN: (纸本)9783037854587

Permanent Magnet Synchronous Torque Motor (PMSTM) has the main characteristics of low speed, high torque, high precision and excellent stability, which can be applied to implement the direct driving technology for CNC (Computer numerical control) machine tool. In this paper, the mathematical model of PMSTM is simply introduced, and the various control strategies are discussed in detail. According to the requirement of high performance for PMSTM driving servo system in CNC machine tool, the corresponding suitable control method is employed in the feed servo system. The proposed scheme is also promoted to apply in the spindle system, the tool holder and the turntable of machine tool. © (2012) Trans Tech Publications, Switzerland.

关键词： Servomechanisms

来源：评论

学校读者我要写书评

暂无评论

A study into the characteristics of a lead-acid battery

引用

Advances in Information Sciences and Service Sciences 2012年第10期4卷 122-130页

作者： Zuowu, Ding Dongbiao, Zhao Yunsong, Lv Min, Qu Yuguo, Wang College of Mechanical-Electrical Engineering Nanjing University of Aeronautics and Astronautics China Jiangsu Key Laboratary of Advanced Numerical Control Technology Nanjing Institute of Technology China Department of Vehicle Engineering Nanjing Institute of Technology China

To determine the lead-acid battery terminal limited discharge voltage, internal resistance value and internal resistance consumption with different loads, one 12V/80Ah lead-acid battery was used in tests. The lead-acid battery terminal voltage, current and terminal resistance were recorded with the discharge time. By analyzing data from the tests with MATLAB, the lead-acid battery capacity, energy consumed by the load and the internal resistance were determined. The battery t-U, t-r, t-ΔU/Δt and t-Δr/Δt are drawn. From the graphs, it is shown that the limited discharge voltage of a 12V/80Ah lead-acid battery changes with different load, the internal resistance value of a lead-acid battery changes with time, the lead-acid battery internal resistance change trend and the voltage change trend are reverse when the load is maintained at a constant value. The higher the load the less discharge capacity a lead-acid battery can release and the energy consumed by internal resistance to the energy that a lead-acid battery can release is higher as the load increases.

关键词： Lead acid batteries

来源：评论

学校读者我要写书评

暂无评论

Smooth trajectory planning for manipulator of cotton harvesting machinery based on quaternion and B-spline

Smooth trajectory planning for manipulator of cotton harvest...

引用

2012 International Symposium on Instrumentation and Measurement, Sensor Network and Automation, IMSNA 2012

作者： Wang, Mulan Li, Xiaoxia Xu, Kaiyun Jiang, Rong Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Nanjing China Department of Electrical and Mechanical Engineering Jiangsu Food Science College Huaian China School of Automation Nanjing Institute of Technology Nanjing China School of Mechanical Engineering Nanjing Institute of Technology Nanjing China

ISBN: (纸本)9781467324670

A planning method for manipulator of cotton harvesting machinery is proposed to accomplish smooth orientation adjustment in its task space. Quaternion is adopted to represent the orientation instead of the traditional homogeneous transformation matrix, and the corresponding conversion process is deduced. The smooth orientation trajectory is generated by interpolating key orientations with the quaternion three-dimensional spherical interpolation method. key joint positions are solved with the inverse kinematics algorithm according to discrete orientations sampled with specific positioning accuracy of the manipulator terminal, and then smooth joint trajectories with stable start-stop motion and continuous jerk are obtained through the interpolation method based on five degrees B-spline. Simulation results show that, the proposed trajectory planning method supplied manipulators with smooth adjustment of orientation and stable movement of joints, which made it an effective solution for the smooth orientation planning problem of manipulators in the cotton harvesting machinery. © 2012 IEEE.

关键词： Manipulators

来源：评论

学校读者我要写书评

暂无评论

Smooth trajectory planning for manipulator of cotton harvesting machinery based on quaternion and B-spline

Smooth trajectory planning for manipulator of cotton harvest...

引用

International Symposium on Instrumentation & Measurement, Sensor Network and Automation (IMSNA)

作者： Mulan Wang Xiaoxia Li Kaiyun Xu Rong Jiang Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Nanjing China Department of Electrical and Mechanical Engineering Jiangsu Food Science College Huaian China School of Automation Nanjing Institute of Technology Nanjing China School of Mechanical Engineering Nanjing Institute of Technology Nanjing China

关键词： Quaternions Manipulators Joints Trajectory Planning Interpolation Splines (mathematics)

来源：评论

学校读者我要写书评

暂无评论

Study on the characteristics of lithium batteries with different load

Study on the characteristics of lithium batteries with diffe...

引用

2011 Cross Strait Quad-Regional Radio Science and Wireless technology Conference, CSQRWC 2011

作者： Ding, Zuowu Qu, Min Jiangsu Key Laboratary of Advanced Numerical Control Technology Nanjing Institute of Technology 211167 Nanjing China Department of Vehicle Engineering Nanjing Institute of Technology 211167 Nanjing China

ISBN: (纸本)9781424497904

Lead-acid batteries are widely used as backup power source in wireless base stations and as power source in electric vehicles. To determine the lithium battery's terminal limited discharge voltage and internal resistance with different loads, four 3.2V/60Ah lithium batteries are put in series to form a battery pack in tests. The lithium battery pack terminal voltage, current and overall internal resistance were recorded with the discharge time. By analyzing data from the tests with MATLAB, the lithium battery pack capacity, energy consumed by the load and the internal resistance were determined. The lithium battery pack t-U, t-I, t-ΔU/Δt and t-r0 graphs are drawn. From the graphs, it is shown that the limited discharge voltage of a single lithium battery is approximately 2.75V, and the internal resistance of a single lithium battery is approximately 0.75mΩ. The lithium battery pack current and the voltage change trends are the same when the load is constant, and the higher the load the less capacity the lithium battery pack can release. The energy consumed by internal resistance to the energy that lithium battery releases is higher as the load increases. © 2011 IEEE.

关键词： Electric vehicles

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：