Wanshan Wang

Northeastern University (Shenyang, China), Feng-t’ien, Liaoning, China

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Publications (109)11.15 Total impact

  • Xuewei Zhang, Tianbiao Yu, Wanshan Wang
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    ABSTRACT: The five-axis milling is widely applied to complex surface machining. When cutting forces of milling processes increase, the consequent workpiece and tool deflections may result in poor machining quality and high processing cost. There are a lot of researches on three-axis milling processes simulation, but very few about five-axis milling. To solve these disadvantages, this paper presents an integrated system containing modeling, simulation, and optimization of five-axis milling processes. The system has three major applications: (1) simulation verification of milling processes, (2) cutting forces prediction, and (3) cutting parameters (feedrate) optimization. The material removal process simulation used for verifying the five-axis milling is based on the three-dexel (depth element) model, and the cutter-workpiece engagement regions are extracted from the geometric model. According to the extracted cutter-workpiece engagement regions, the instantaneous cutting forces could be predicted. The feedrate is off-line modified for balancing the given maximum or the reference cutting forces with the predicted cutting forces on different machining steps. The developed system is validated experimentally to show that the modeling, simulation, and optimization methods could improve the accuracy and efficiency of five-axis milling processes.
    International Journal of Advanced Manufacturing Technology 10/2014; 74(9-12). DOI:10.1007/s00170-014-6075-1 · 1.78 Impact Factor
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    ABSTRACT: This paper presents a three-dimensional, web-based, interactive simulation system for turn-milling center. To overcome the disadvantages of transferring files over the Internet and depending on expensive computer-aided design (CAD)/computer-aided manufacturing (CAM) softwares, the system is developed by virtual reality modeling language (VRML)/JavaScript interaction. The system files produced by machining simulation have small size, and could be transmitted on the web easily. Firstly, a dynamic interactive technology based on VRML and JavaScript, which is essential to a web-based simulation system, has been presented in this paper. Secondly, the geometric and kinematic model is created for representing the turn-milling center motion. Then, the key technologies for machining simulation including material removal, NC codes compiling and collision detection are studied. Finally, to validate feasibility of the proposed system, the virtual machining process for a stepped shaft in the machine tool is carried out. Since the system realizes multiple dynamic demonstrations of virtual machine tool, users can comprehensively understand the product performance. The research for the web-based virtual system of turn-milling center has important research value and application prospect.
    International Journal of Advanced Manufacturing Technology 08/2013; 67(9-12). DOI:10.1007/s00170-012-4660-8 · 1.78 Impact Factor
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    ABSTRACT: Aiming at the problem of the varying chip thickness and depth due to the complex motion in orthogonal turnmilling, the mathematic models describing relationship between cutting parameters were founded based on orthogonal turn-milling principle, and chip formation was generated by both the peripheral cutting edge and the face edge of cutter. In order to master the inherent rules of chip formation, the effect of cutting parameters on chip formation by orthogonal turn-milling were conducted by experiment in turn-milling process. It is shown that two sorts of chip formations with sawtooth are gained respectively in non-eccentricity and eccentricity machining process. The axial feed rate and the speeds cutting tool and workpiece are some important parameters of effect chip formation. The adiabatic shear takes place inside the chip by analyzing topography by orthogonal turnmilling, which the cause of sawtooth chip formation is local catastrophic shear. Therefore, it provides theoretical guidance and reference for the research on orthogonal turn-milling mechanism.
    Journal of Computational and Theoretical Nanoscience 06/2012; 12(1):7-12. DOI:10.1166/asl.2012.2766 · 1.25 Impact Factor
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    ABSTRACT: The Rigid Internal Fixation is one of the commonly used methods to reconstruct the mandible in bone repair surgery. This research proposed a complete flow of the designing and Finite Element Analysis (FEA).The customized titanium plate and screws model were imported in Mimics, then fitted and simulated with the shape of mandible 3D model. The simulation model would be imported into Magic's and the screw holes were located and punched. In order to ensure the validity of model for surgical guidance, the FEA was employed by FEA software Abaqus in this study. Different angles were selected and different loads were loaded. Comparing with the nomal mandible mechanical data, the von mises stress and deformation which was from the reconstruction of mandible were in the regular range and the RP model which would be used in the medical guidence was manufactured according to the 3D model. The research for this processing has important guide significance and good business prospects.
    Control (CONTROL), 2012 UKACC International Conference on; 01/2012
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    ABSTRACT: Main bearing that plays the role of supporting and making the cutter to rotate and tunnel is the core part of TBM. Because of the harsh working conditions and complex changeful construction, the axial and radial load and environmental factors such as temperature of TBM main bearing are changing to make the fault of main bearing presenting randomness, and then the not easy identified fault may be produced. The traditional neural network model can not dynamic consider the cause of the reasons, parts and types, BP neural network fault diagnosis model based on fault reasons-signs matrix is presented in this paper. Firstly, the faults are screened through the fault reasons-symptom matrix, and the neural network structure is designed according to the screening result, then, the fault type is identified by way of model training. According to TBM main bearing fault symptoms data provided by a heavy enterprises practical engineering and MATLAB simulation validation, the feasibility and superiority of this model method are proved.
    Control (CONTROL), 2012 UKACC International Conference on; 01/2012
  • Lida Zhu, Chunxia Zhu, Tianbiao Yu, Wanshan Wang
    Journal of Computational and Theoretical Nanoscience 07/2011; 4(6):1913-1917. DOI:10.1166/asl.2011.1678 · 1.25 Impact Factor
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    ABSTRACT: Based on the analysis of the geometry and machining characteristics of aircraft structural parts, and the feature geometry is described with a hierarchical structure. A machining feature recognition method based on neutral file is presented. Firstly, geometry and topology information of CAD model in UG software is obtained from STEP AP203 interface. Secondly, features are extracted from B-rep representation of the part, and then the features, as well as corresponding geometry and topology are mapped machining feature which is utilized as standard interface for CAM. Based on these studies, a feature recognition system was developed in visual C++, which discussed the data mapping methods from AP203 to C++ system, from AP203 to ORACLE sever. The lexical analysis process of the AP203 files, the establishment and operation process of the machining feature database was developed. And the feasibility was verified by an example of structural part.
    Digital Manufacturing and Automation (ICDMA), 2010 International Conference on; 01/2011
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    ABSTRACT: For many problems of traditional technical services, this paper presented the networked technical services oriented the production process in order to meet the needs of modern manufacturing model. This paper focused on analyzing the user needs of production process technical services, and studied the main problems existing in the traditional mode of technical services and the features of networked technical services. What is more, it structured the main function module of the system of the networked technical services oriented production process. Finally, it researched the workflow of the networked technical services. This paper provided a reference for improving the quality and efficiency of technical services in the production process, as adopting advanced computer technology, networked technology and artificial intelligence technology.
    Second International Conference on Digital Manufacturing and Automation, ICDMA 2011, Zhangjiajie, Hunan, China, August 5-7, 2011; 01/2011
  • Tianrui Zhang, Tiantiao Yu, Wanshan Wang
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    ABSTRACT: Partner selection is the critical section to the success and survival of forming and running the Agile Virtual Enterprise (AVE). This paper studies how to select the partners in an AVE can be assisted through the three phase combinatorial optimization model which can not only select good partners, but also receive the best match combination between partners of all processes. Firstly, partners are originally selected to narrow the range of potential partners. Secondly, priority of partners in all sub-tasks evaluated by triangular fuzzy number-based two-class fuzzy comprehensive evaluation is the prerequisite of the optimized combination that executed by the Ant Colony Algorithm (ACA). The ACA can select sections from the residual information adaptively to improve global search ability. Lastly, the study gives an example and its simulation result under MATLAB.
    01/2011; DOI:10.1109/ICMA.2011.5985841
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    ABSTRACT: According to the idea of green manufacturing, this paper researched about CNC machine tools made of recycle and reuse toward the next 5 to 10 years a large-scale NC machine tools scrap recycling potential resources. Then it also analyses the flow chart of CNC recycling and reusing, proposed evaluation method of CNC machine tools recycling and reuse which based on fuzzy analytic hierarchy process. It establishes a comprehensive and rational recycling of CNC machine tools evaluation index system, develops evaluation prototype system for recycling CNC machine tools. This paper provides theoretical and technical reference for recycling and reuses the waste CNC machine tools.
    Second International Conference on Digital Manufacturing and Automation, ICDMA 2011, Zhangjiajie, Hunan, China, August 5-7, 2011; 01/2011
  • Jianrong Wang, Kai Fan, Wanshan Wang
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    ABSTRACT: This paper models the aeroengine health assessment problem as a multi-criteria decision-making (MCDM) problem and proposes a three-step evaluation model, which combines the techniques of fuzzy analytic hierarchy process (fuzzy AHP), fuzzy preference programming (FPP) and technique for order performance by similarity to ideal solution (TOPSIS). Fuzzy AHP and FPP methods are used to determine the relative weights of multiple evaluation criteria and synthesize the ratings of candidate aeroengines. Aggregated the evaluators’ attitude toward preference, then TOPSIS is employed to obtain a crisp overall performance value for each alternative to make a final decision. To illustrate how the approach is used for the aeroengine health assessment problem, an empirical study of a real case involving eleven evaluation criteria and ten initial commercial aeroengines of Air China Ltd. is conducted. The case study demonstrates the effectiveness and feasibility of the proposed evaluation procedure.
    Expert Systems with Applications 12/2010; 37(12):8516-8526. DOI:10.1016/j.eswa.2010.05.024 · 1.97 Impact Factor
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    ABSTRACT: This paper presents a new method of collaborative technical service orient product lifecycle to improve quality and efficiency in technical service. Firstly, the collaborative technical service orient product lifecycle is defined and characteristics of collaborative technical service are analyzed. Then, based on analyses structure of technical service data-base the collaborative technical service system architecture is founded. Finally, on the base of theoretical research, a prototype system of collaborative technical service orient product lifecycle is developed.
  • Source
    Lida Zhu, Jianyu Yang, Jiaying Pei, Wanshan Wang
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    ABSTRACT: In order to display and analyze motion process of complex productions in virtual Environment, VPMSS (Virtual Products Motion Simulation System) is developed using virtual reality technologies in this paper. Taking Turn-milling center as example, the key technologies play an important part in motion process based on virtual reality environment. Such as data formats and translation methods between CAD and VR, making virtual scene, modeling technology based on virtual reality and so on. Firstly, the configuration and function model of virtual reality system is introduced, and then the key technologies of virtual environment are provided, which modeling of virtual reality, virtual scene and data transformation from CAD and VR are researched. Finally, the motion simulation of turn-milling center is immersed in Divison/Mockup to provide basis for next stage.
  • Junming Hou, Chong Su, Lida Zhu, Wanshan Wang
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    ABSTRACT: Collaborative design is a new design style for mechanical manufacture, which is an important means in networked manufacture. Designers work at the same time will encounter the conflict, which should be solved. Firstly, the class of conflict is addressed to make a basis for conflict resolution. Then the conflict resolution method is applied. The resolution model is set up. According to the conflict, four resolution methods are applied, which are constrained and relaxation method, method based on reasoning, reasoning method based on example and law of arbitration. The process of resolution is provided. Dead locks phenomena are danger for system. A set of dead lock resolution mechanism are provided to solve the problem. By means of a case study, the method proposed can assist designers during the conflict resolution.
    International Journal of Modelling Identification and Control 01/2010; 9. DOI:10.1504/IJMIC.2010.032377
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    ABSTRACT: According to the single release form of product information on the network in machine manufacturing enterprises and the high price of the conventional NC simulation software, a machining simulation system based on Web is developed in this paper. Making use of the superiority of Java and JavaScript on Web and the interaction of VRML technology, 3D browsing, virtual assembly and machining simulation are realized on the network. Based on the authenticity and real-time of virtual reality, a network distributed virtual simulation system is designed. This method of NC machining simulation is not dependent on the expensive CAD/CAM software, and for the size of the system files is small, it can be transferred on the network conveniently. Using the browser with the plug as the client, the system has free installation, authenticity, interaction, low cost, portability, low requirements for the client, etc.
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    ABSTRACT: Mandibular defects need customized titanium plates for reconstruction. The conventional design process of titanium plate is prior to surgical interventions. The efficiency and accuracy of the conventional method is mainly dependent on experiences and skills of the designer. In order to decrease the dependence on design experience and enhance the participation of surgeons in the design process, designing and fabricating a customized titanium plate implant according to Rapid Prototyping (RP) biomedical model could be employed. RP biomedical model is greatly convenient to diagnosis and treatment planning. It could decrease the operation time and the risk of misinterpretation of the medical problem. In these cases, the operation time was reduced by 1.5-2.5 hours. A physical biomedical model also facilitates surgery planning and makes the rehearsal and simulation of the operation possibly. The customized titanium plate shape conforms to the patient's mandible anatomy and is thick enough to provide the strength and stiffness needed to fix the mandible until the bone grafts and soft tissues heal. At the same time it is thin enough to avoid extensive intrusion into soft tissues and to avoid weighing too much for the patient's jaw.
  • Xingyu Jiang, Jiaqi Jin, Kai Zhao, Wanshan Wang
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    ABSTRACT: To establish the configuration relations of complex product structure in the process of customization into supply chain, a new product structure configuration model based on polychromatic graph theory was put forward. Then the optimum product structure configuration mathematical model was got and the improved ant colony algorithm was employed to solve the problem. The results showed that the solution quality got by improved ant colony algorithm was better than the solution got by traditional ant colony algorithm, and the product configuration model can exactly present the configuration information, product attribute and assembly relation for complex product. The customization system offers a kind of new way to meet customers' requirements that the customers are eager for consumption of varieties, small batch production, short cycle and high quality.
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    ABSTRACT: How to solve the problems of monitoring dynamic and variable quality variation, diagnosing the abnormal variation and adjusting the process at the right moment, is a difficult problem that modern manufacturing enterprise faces challenges in process of grinding quality control. A dynamic, intelligent control model of grinding quality was put forward, which integrated quality prevention, analysis, diagnosis and adjustment, in which grinding quality data in small batch mode were transformed by grinding quality analysis based on similar process, to draw control chart of grinding quality, Elman was applied to realize on-line intelligent diagnosis and prediction of grinding quality, and grinding process was adjusted by expert system of grinding quality adjustment at the right time. The reliability and feasibility of the model was proved by actual test and simulation. The results indicated that this model can be used to monitor grinding quality on line in real productive activity.
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    ABSTRACT: The traditional study on grinding is testing the same material in conditions of different grinding parameters on a dedicated grinder, or testing different materials separately, which will not only waste a lot of human and material resources, but also extend the research and development cycle of wheel products, increase wheel product development costs, reduce the efficiency of study. If virtual reality and simulation technology are used to replace or reduce the actual experimental work, the grinding wheel manufacturing costs can be decreased and the competitiveness of R & D departments are increased, especially the diamond, CBN and others higher-cost super hard abrasives. This paper briefly introduce to some of the basic theory about the virtual reality simulation technology, then develop the grinding process modeling and simulation system of vitrified bond CBN grinding wheel by the MFC with OpenGL graphics library in the Microsoft Visual C + + 6.0 platform. After system simulation testing, the wear state of vitrified bond CBN grinding wheel on different conditions and different periods in the grinding process are predicted.
    Management and Service Science, 2009. MASS '09. International Conference on; 10/2009
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    ABSTRACT: For enduing the business enterprise capacity to respond to customer's need more accurately and quickly, so that the enterprise can further shorten the period of designing and manufacturing course, this text puts forward a technique route that would develop a three-dimensional parametric design system which is based on individual product customization under the network environment, meanwhile it makes a research on the key techniques. In the end, this text takes some type compressor as the applied object to establish the system prototype. As a result, it indicates that the system prototype can connect customer's need and product design processes very well, and at the same time through introducing knowledge base and software second-times development into the design course, the system can realize automatic three-dimensional parametric design and assemblage, so it can reduce designer's workload consumedly and raise the efficiency. We can say it develops a new path for the business enterprise to realize quick cooperating design.
    Information and Automation, 2009. ICIA '09. International Conference on; 07/2009

Publication Stats

102 Citations
11.15 Total Impact Points

Institutions

  • 2006–2014
    • Northeastern University (Shenyang, China)
      Feng-t’ien, Liaoning, China
  • 2007–2010
    • Northeastern University
      Boston, Massachusetts, United States
    • Liaoning University
      China
  • 2008
    • Shenyang University of Technology
      Feng-t’ien, Liaoning, China