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Key engineering materials
Trans Tech Publications Ltd.
Key engineering materials

Trans Tech Publications Ltd.

半月刊

1013-9826

Key engineering materials/Journal Key engineering materials
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    Study on Synthesis of Hinged Four-Bar Linkage Straight-Line Mechanism Using Three Symmetric Points

    A.P. HuD.J. KongW. Zhu
    330-333页
    查看更多>>摘要：Based on the fact that symmetric coupler curve can have three different tangent points with given straight-line, the three symmetric points of coupler locus was specified, and they was made into symmetric tangent points to determine the position of instant centre method. The size of the hinged four-bar linkage straight-line mechanism is determined using the position of instant centre method. The results were shown that coupler locus curve is obtained with this approach that is approximated with the intended straight-line precisely, and the basis of this approach is simpler than other analytic approaches.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    The Existence and Uniquence of the Solution for the Newtonian Equation

    Y.Q. FengZ.H. Shen
    334-338页
    查看更多>>摘要：In this paper, the methods of the basin of attraction and the nonnegative coercive function are used to discuss the existence and uniquence of the periodic solution to the Newtonian equation of motion. Some Theorem is proved and the main results are generalized and discussed in this papers.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    Strategy Study on Enterprises to Implement Effective Pay Management

    Y.J. Miao
    339-342页
    查看更多>>摘要：Pay management, which is an important function of human resources management in enterprises. Enterprises pay gets relationship with effective management of the entire enterprise human cost of reasonable control, overall satisfaction of staff and internal management of enterprises in the fair and so on, all kinds of problems. This article states the contents of salary management and the function of incentives and analyzes the mistake and reasons in pay administration, and establishes some ways to solve those problems. At the same time, it also analyses a fair and effective pay system to attract and retain the talented in order to encourage employees' enthusiasm for work and improve enterprises' overall performance.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    A Goal-oriented Active Service Model and Its COE Algorithm for Migrating Workflow System

    R. Wang
    343-347页
    查看更多>>摘要：Workflow management systems (WFMS) are complex distributed systems, which are geared for the orchestration of business processes across multiple organizations. In order to adapt to the heterogeneous, distributed and dynamic environment, we propose a goal-oriented active service model. The model is designed to support organizational coevolution for providing workflow services. This paper reviews the introduction and motivation for active service approach, discusses the technologies used in active service, which represents steps towards the end goal of building virtual service group and organizational coevolutionary(COE) algorithm.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    The Vibration Monitoring Standards of Desulphurization Fans and the Monitoring and Intelligent System of Identifying Failure

    S.S.ChenG.Y.LiL.B.He
    348-351页
    查看更多>>摘要：A typical fan desulphurization measuring points (failure-prone region), according to measurement data on many occasions, its failure to find the development trend of the equipment malfunction and made more accurate judgments. At the same time, the preparation of the equipment, the corresponding vibration diagnostic criteria and common fault identification intelligent system and continuously updated to facilitate site inspection personnel equipment vibration condition monitoring work and improve their equipment to grasp the operation of the accuracy and efficiency.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    The Dynamic Optimization and a New Structure of the Nursing Bed Robot

    S.J.XinH.H.Zhang
    352-355页
    查看更多>>摘要：In line with the principle of ergonomics and mechanism and based on bar linkage ,this thesis puts forward a nursing bed robot with the introduction of its structure and working principle. According to the many-body system dynamics theory and by the application of the simulation software ADAMS of mechanical system dynamics ,we first set up the pattern of the virtual model machine which posses a nursing bed with the combined linkage of sitting up straight with its knees bent. And second we successfully optimized the dimensions of the structural parts of the nursing bed robot by realizing the design goal of minimizing the maxi force intensity borne by the linear motor .Finally following the result of optimization and the optimal scheme which satisfies the design requirements, we made the model machine of the nursing bed robot.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    Studying on the Fiber Diameter of Polypropylene (PP) Spunbonding Fabric By Means of Artificial Neural Network Model and Physical Model

    B.Zhao
    356-360页
    查看更多>>摘要：In this work, the artificial neural network model and physical model are established and utilized for predicting the fiber diameter of polypropylene(PP) spunbonding nonwovens from the process parameters. The artificial neural network model has good approximation capability and fast convergence rate, is used in this research. The results show the artificial neural network model can provide quantitative predictions of fiber diameter and yield more accurate and stable predictions than the physical model, which reveals that the artificial neural network model is based on the inherent principles, and it can yield reasonably good prediction results and provide insight into the relationship between process parameters and fiber diameter.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    A Research on E-business Applied to the Innovativeness of the Tourism Enterprises' Management

    M. Wei
    361-365页
    查看更多>>摘要：The internet with its growing population has technologies which provide the tourism enterprises' management with an unprecedented level of connectivity and the ability to communicate efficiently and effectively directly with tourism customers. E-business which operates on the backbone of the Internet could help the tourism enterprises generate innovativeness conducting to additional revenue by reaching the markets they could not access using traditional systems. The innovativeness plays a very important role in the tourism enterprises' management in recent years, by which the application of e-business can supply with more convenience. The article analyses the factors which lead tourism consumers to becoming online consumers. Particularly, e-business is viewed as means of the innovativeness affecting the tourism enterprises' management, so the e-business application is proposed to add innovativeness to the tourism enterprises' management recently. The model of the innovativeness of the tourism enterprises' management is tried to be tested on tourism e-business consumers who do online shopping for tourism product or service. Finally, it can be believed that e-business acceptance of tourism enterprises is determined by the tourism e-business consumers' attitudes to the model of innovativeness of the tourism enterprises' management.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd

    A Study on Ontology-Based Representation System of Product Design Knowledge

    H.B.WuY.W.Liu
    366-370页
    查看更多>>摘要：In this paper, we investigated the definition of product design knowledge, design knowledge origin characteristics and design knowledge formalized representation method, etc. We also established the methods to classify and represent the concept-design knowledge and developed an ontology-based model presenting the design knowledge as well as a model for modeling cycles. From the design knowledge management's angle, design knowledge modeling approach is studied to support the design knowledge development, transfer and reuse for the construction machinery the knowledge modeling.
      原文链接:
    • NETL
    • NSTL

    Study on Desktop Virtual Assembly System for Interactive Assembly Process Planning

    D. ZhangG.M. JiaoD.W. ZuoJ. Xie...
    371-375页
    查看更多>>摘要：Aiming at the shortcomings of traditional assembly process design and immersive virtual assembly system, the architecture of Desktop Virtual Assembly System (DVAS) for interactive assembly process planning is presented. The key technologies such as data conversion and reconstruction of assembly models, assembly intention recognition and assembly control navigation are studied. The lightweight storage of assembly models' data and the intelligent constraints recognition are realized. The problem of assembly operations resulted from the lack of immersion is solved by movement navigation. The algorithms were proposed and applied to the DVAS prototype, and an application case is studied to demonstrate the effectiveness of the system.
      原文链接:
    • NETL
    • NSTL
    • Trans Tech Publications Ltd