Applied Mechanics and Materials Vol. 443

Abstract: In order to study the distribution system of the logistics parks with the support of cloud computing, the paper analyzes the distribution of goods under the conditions of the massive resources and real-time information assisting problem. When the distributed system selecting the paths in massive resource planning for each scheduling, it increases the number of paths selection and reduces transportation costs.. This paper uses the mathematical programming and optimization theory to establish an optimal mathematical model of costs and time for the target path, and introduce the optimal solution of the genetic algorithm. This paper demonstrates through an example application that this model is efficient and embodies the advantages of cloud computing in logistics applications.

Abstract: Dike roads include water conservancy projects and highways or public works, so the industry cross exists in designs. During the process of dike road designs, there exists problems such as disjointed dike designs and road designs, the lack of adaptation classification system and design standards, inconsistent requirements of embankment compaction and subgrade compaction, the lack of a connection with the inner road network design and green landscape design and other issues. We should fully consider the differences between dike design and road design, according to the particularity of the road dike, and we have proposed several proposals, such as increasing related indicators in the early design of the dike road design, establishing the dike road classification system, uniforming embankments and subgrade compaction standards, strengthening connections with the surrounding road network design and paying attention to greening landscape designs.

Abstract: Based on the Set Pair Analysis theory and fuzzy set, the traditional clustering methods were taken into account from the characteristics of the forward, reverse and uncertain factors. A new cluster analysis method was proposed which allows more flexible clustering analysis. A case study in the materials clustering was carried on for the consumers to look for the most benefits in line with their own requirements.

Abstract: Local protectionism is a barrier to the sound development of the market economy. To analysis the impact and effectiveness of local protectionism from the angle of mathematic or system science, this paper analysis the connection function of local economy system based on set pair analysis method and the basic ideas of Jieke Theory. Then, the negative impact of local protectionism was discussed according to the connection function between regional economies. Finally, some suggestions were given.

Abstract: This paper made the investigation and analysis to the desk and chair for the primary and secondary students. So from the ergonomics and product semantics,mechanical principle, design psychology as the starting point, also basing on the satisfaction for the economic costs and environmental protection and others, we had design a set of chair and desk accord with the ergonomics, which can keep the normal physiology curve of students and good for growing, but also can improve the learning efficiency. This design method is one of the important development directions of desk and chair in the future, also has important reference significance on the ordinary design for desks and chairs.

Abstract: The increase of modern socialist productivity can not separate itself from the support of the industrialization of production, and development and progress of industrialization is closely related to the degree of mechanization in social production. In current context of the market economy, the degree of mechanization often represents technology and efficiency, so in the development process of domestic industries, the application of mechanical equipment shows strikingly prosperous scene, at the same time, people's living environment is increasingly influenced by the mechanical application process. The paper makes a detailed study and discussion on environmental impact of engineering machinery and in the hope that in the mechanization context, this paper would provide a reference for achieving coordinated development of economy and environment.

Abstract: With the increase of people's awareness in health, those busy people living in the centers of cities can only rely on a treadmill to take physical exercise in life. However, there will be a series of problems to appear in a treadmill if it is used for a too long time, so it is necessary for people to know well the structure of the treadmill and the common faults for solving these problems. In this paper, the types and structures of treadmill as well as the common faults and solutions are specifically introduced.

Abstract: This paper gives the definition of configuration rules in the customized production process of mechanical products from two different levels: the activities and parts. In this configuration, different customized production process of customized products will be generated to achieve the purpose of reusing different types of resources; finally, practical example will be given to prove this verification. Customized production is interactive and highly imitative. According to theses two advantages, this paper adopts computer technology to establish geometric model of production figures. In this way, this application can not only simultaneously meet the needs of both machinery manufacturing production and customized production, but also launch various simulation, verification, and contrast and optimization process to a variety of program. Finally, an optimal method for production is used eventually to realize the purpose of low-cost and high quality.

Abstract: Due to the increase of uncertainty and complexity of the market, the demand level of machinery enterprises upgrades. The demand structure is diversified, and the lifecycle of mechanical products is getting shorter. All these pose great challenges to the production management and control. In recent years, machinery textile industry is developing rapidly. Textile processing is moving in the direction of multi-varieties, small batch and short-cycle. Textile manufacturers need to sustain innovations. After completing the design, textile designers should make a proof in accordance with user requirements and then decide whether to put into production.

Abstract: The worst case analysis by means of software Saber is implemented on a three-output flyback switching power supply. The analysis results offer a criterion to definite error range of the device parameters.