Advanced Materials Research Vols. 291-294

Abstract: The uncertain parameters of the structures are expressed by interval variables, and the governed equations of the structural system are obtained with the finite element method, then interval analysis is used to model the uncertainty in the static structural analysis and design. After the interval arithmetic integrated with random theory is studied, the confidence interval of structural response is achieved, and the approximate calculation is used with the method of Monte Carlo. Furthermore, by combining the interval variable of the structural response with confidence interval, an analysis method of uncertain structural systems is proposed based on the random model. The presented method can restrain expanding interval, and easy to engineering due to its convenient calculation.

Abstract: Performance appraisal, an effective method for human resource management, is getting increasing attention by more and more foundry enterprises. Traditional manual methods, though laborious and not conductive to the management, have been widely used to appraise employee’s performance in the past years. Most domestic foundry enterprises have achieved a certain extent of informationization, during which lots of valuable data are accumulated, but these data rarely play a significant role in performance appraisal. In order to solve these problems, this paper analyzes the features of performance appraisal methods of these foundry enterprises, then designs and implements a Performance Appraisal System (PAS) based on data integration. PAS is suitable for enterprises at different informationization levels. The aim of PAS is to achieve a more rapid, fair and accurate performance appraisal and help to promote informationization of foundry enterprises.

Abstract: There are many studies about foundry process design, foundry quality control, and foundry methods selection; however few researches have been published regarding foundry production scheduling management and expert system and flask management in casting production in particular. It is difficult for a production planner to judge whether there are enough flasks to meet the moulding plan in casting companies, and it is a highly troublesome problem to provide the planned castings with the compatible flasks as well. In order to address these two issues, in this paper we analyzes the cause of the problem and finds that the difficulty is to manage assembling flasks, and then constructs a decision analysis method. The method can make a validity analysis to the made moulding plan, and make up a flask assignment solution for the valid plan. Finally, a foundry moulding plan expert system based on the method is developed to prove this study.

Abstract: Based on the task allocation problem in customer collaborative design ,which is a new product innovation mode, the task allocation was realized by using a task allocation mechanism based on the negotiation and a protocol was proposed for task allocation. Considering the effecting factors of the collaborative design, a decision-making algorithm based on the comprehensive evaluation was proposed in order to realize the optimal allocation of the task.

Abstract: The demand for coal keeps on increasing with the development of economy. However the short period of mine construction is apt to formulate safety hazard, the quality is easily neglected in construction process. Based on intrinsic safety management in ZhaoGu coal mine, workers’ unsafe behavior is analyzed from two aspects, i.e. construction workers and management, utilizing the fault tree analysis. Then some measures to guarantee security management are proposed, such as: (1) safety control on behavior and psychology. (2) strengthening on skills education. (3) optimizing organization management. (4) respecting workers’ psychological and physical cycle and enhancing their safety consciousness.

Abstract: Each year, according to Chinese and European statistics, there are many serious injuries and even fatalities of travelers into subway transit stations. Consequently, it becomes more and more important for transit authorities to evaluate these facilities (platform, gates, stairs, escalators, etc.) under critical traffic conditions, such as rush hours or emergency situations. The purpose of this paper is to review existing research results, develop the main Framework of station capacity assessment and finally point out the key issues of subway station capacity assessment.

Abstract: Supply chain simulation is a fundamental approach for supply chain prediction, management, evaluation, and improvement. In order to simulate member behavior, organizational strategy, and management strategy of the supply chain, an agent-based modeling and simulation approach on multi-stage supply chain operation was proposed in this paper. First, the model structure of multi-stage supply chain operation was introduced. Then, the individual agent behavior model was emphatically studied, and hierarchical colored Petri-nets were used to describe the agent behavior process and cooperative behavior process. Finally, the model was validated using a series of simulation which focused on the agent inventory strategy.

Abstract: With the main problems which exist on the key customer management and the characteristics of high costs and high returns on the domestic coach industry, then it is necessary to further grade the key customers who are confirmed based on the ABC classification through the profit and loss accounting method. To identify the real key customers, which is in order to realize the benefit development of the customers and optimize configuration of the enterprise resources, and finally the enterprise realizes the benefit development. The analysis results of this paper show that: it is necessary for the coach enterprises to grade the key customers, so that it can better control the enterprise cost and realize the goal of enterprise profit by identifying and managing the real key customers from the perspective of cost control.

Abstract: Manufacturing execution system is the link in the process of enterprise implementation information integration.Structured simplified model of the virtual product list,improve efficiency of customized products management. Established model for segment customized products in time and space. Classified the parts and products which had the same specifications.These products can directly get from the warehouse and distribution.Classified the products that need to completely redevelopment at the same time. Attained the purpose of shorten the delivery time. And on this basis, designed customization model for products based on MES. Under the support of information exchange capabilities platform by manufacturing execution systems . Deliver customization model data to the production unit in time, to ensure that custom products completion on time, by volume and quality.

Abstract: The low-carbon economy already became the tendency of global development, and logistics holds the important position in the low-carbon economy. The low-carbon concept is also inevitably transmited to the logistics industry. For this reason, the notion of low-carbon logistics is proposed. Through the analysis of the challenges and opportunities logistics industry faces in China under the background of low-carbon economy , then this article discussed that what measures and methods logistic industry should take to reduce logistics cost and to improve the international competitive advantage.