Tao K.,Shenyang University of Technology |
Chen T.,Shenyang University of Technology |
Liu L.,Shenyang Machine Tool Co.
Advanced Materials Research | Year: 2011
This paper studies the problem of multi-joint robot with four degrees of freedom that is used in the process of loading and unloading, the method of homogeneous coordinate transformation is used to achieve the exchange between the implementation end of the space coordinate and the joint angle. Providing the theoretical reference and a basis of calculating for the follow-up study, and ultimately meeting the actual needs of production. © (2011) Trans Tech Publications. Source
Li P.,Tongji University |
Liu J.,Tongji University |
Liu S.,Shenyang Machine Tool Co.
Lecture Notes in Electrical Engineering | Year: 2011
Topology optimization lends an effective tool for lightweight work of machine tools. With variable density algorithm, the mathematical model of optimization was given. After structural analysis, analyzing model for topology optimization, with practical machine tool structure, was built. The method of choices of optimization variables and constraints were related. Based on optimizing calculation, the density contour is displayed. And then the irregular structure after topology optimization is abstracted and simplified, building new improvements of machine tool structure based on topology optimization results. Re-analysis results show that, after optimization, the structure compliance is reduced; and the 1st-3rd natural frequencies are improved; the structure mass is reduced by 5.55%. Meanwhile, the new structural changes are very easy to achieve for the processing technology. With further maturity of topology optimization theory, the lightweight work of machine tools will have increasingly active role to reduce material consumption. © Springer-Verlag Berlin Heidelberg 2011. Source
Mu B.,Tongji University |
Ren Y.P.,Tongji University |
Sun Z.,Shenyang Machine Tool Co.
Proceedings of 2013 3rd International Conference on Computer Science and Network Technology, ICCSNT 2013 | Year: 2014
With the development of information technology, knowledge-based economy and e-commerce become popular in the world. In the competitive environment, the key to contributing to the development of enterprise is to accumulate and manage knowledge efficiently. At the same time, wiki system is forging ahead toward the great goal of being worldwide Knowledge Management System(KMS). Compared with other implementation methods of knowledge transmission and sharing, wiki has great advantages to be an enterprisegrade KMS. After a deep and comprehensive research in this field, JSPWiki has been the final choice to be a prototype of system design, which is based on JSP/SERVLET. The KMS proposed in this paper is based on JSPWiki. It has added functions of knowledge audit, system log and full-text retrieval besides JSPWiki's original function modules. In addition, it has also adds Hibernate which is a well-performed framework to strengthen ability of database operation and embedded JBPM(Java Business Process Management) to implement the function of knowledge audit. The system has been deployed in a real product environment. The result shows that it brings lots of benefits to enterprise for managing knowledge. © 2013 IEEE. Source
Yang W.,Hebei University of Technology |
Wang J.,Shenyang Machine Tool Co. |
Peng K.,Hebei University of Technology |
Sun D.,Hebei University of Technology
Proceedings of the 2nd International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2012 | Year: 2012
With the development of modern industry, image measurement technology with its high speed ,high precision and non-contact advantages receives high-profile attention. In the machine vision system the size of the process of mechanical parts measured, it is found that the accuracy of the edge position directly influence the accuracy of the measurement results. According to the research on the current sub-pixels positioning of image processing technology, this paper firstly makes a theory analysis and research about sub-pixel location methods based on gray level moment theory and the theory of Gaussian fitting. Then through the parts size measurement experiment, under the premise of contrast location with classical edge detection operators, some groups of data are extracted respectively compared to both of the detection performance and accuracy.Thus it provided the reference for the sub-pixels edge detection algorithm in the actual application. © the authors. Source
Cao G.-M.,Northeastern University China |
Li C.-G.,Northeastern University China |
Liu Z.-Y.,Northeastern University China |
Gao B.-H.,Shenyang Machine Tool Co.
Dongbei Daxue Xuebao/Journal of Northeastern University | Year: 2011
In order to improve the flat, gauge control precision and surface quality of casting strips, processing parameters were optimized based on a kiss point position calculation model (combining a Bayesian neural network and a theoretical model) and using a particle swarm optimization method under given chemical composition and process constraint conditions. Optimized and experimental results showed good agreement. Source