Advanced Materials Research Vols. 201-203

Abstract: According to the plunger pump movement principle, this paper analyzed the two kind of typical force situation of the crosshead, and obtained the theoretical maximum force. Established the finite element model of the crosshead, gave an analysis to the load handling and boundary condition. The last results of the node stress and displacement show that the crosshead can work safely.

Abstract: Surface of the lamp reflector are plated a layer of aluminum. It is hard to accurately establish calculate model when use finite element software to analysis the temperature field. For this reason, a new temperature field calculate model of aluminum layer is presented. And it apply to calculate the temperature field of front fog(084). Finally use temperature field experiment to verify that the calculate model of aluminum layer is correct.

Abstract: A new type cyclone with oblique top, transitional volute chamber, eccentric inner cylinders and sloping outlet were designed and manufactured by numerical analysis, which had been applied to the five-stage preheater in the cement plant with the capacity of 5000t/d. To simulate the gas flow field and particle trajectory in cyclone, the Fluent software was used, and the RNG k-ε model and discrete random walk model were proposed. The flow characteristics of gas-solid two-phase were analyzed. It is found that the strongly swirling flow occurs in the new type cyclone, and the particles of raw meal can be more efficiently separated from the gas.

Abstract: Virtual enterprise and concurrent engineering are two of the most promising business strategies to address global competition. By unifying the concepts of virtual enterprise and concurrent engineering, allied concurrent engineering aims to integrate the engineering activities and resources from different enterprises through enterprise alliances to quickly respond to customer expectations. This paper presents a holonic system framework for engineering data management to support allied concurrent engineering. The framework is designed based on the concepts of holonic systems to reflect the distributed, collaborative, agile, dispersed and heterogeneous natures of allied concurrent engineering processes. In the proposed framework, key elements such as information items, libraries, and information management units etc. are defined as “holons” which have autonomous, cooperative and configurable properties.

Abstract: The traditional method of verifying mechanical and electrical products shock strength is primarily through impact test to the product. From the current experiment the force size and amount of structural deformation can’t be gotten when it suffers from the impact load. Applying the software of MSC.Patran and MSC.Dytran, finite element is modeled for the mechanical and electrical products components, and impact property is analyzed when they are subject to impact load. It can reduce the number of verification test and improve design quality. The application is very promising.

Abstract: In this paper, a 4WS control method based on BP neural network was introduced. It used the BP neural network to simulate the map of vehicle and the nonlinear dynamic characteristics of the tire to avoid large errors that relying on mathematical simulation model of the problem. The 4WS measured data of Tokyo institute of Technology institute of Japan was used and used BP neural network method to identify the nonlinear characteristics of vehicle and tires. System controller’s design is not based on any theoretical method, but on the BP neural network’s self-learning ability. Experimental results show that this method has good controlling characteristics, and it can improve the vehicle’s active safety and manipulating stability effectively.

Abstract: The mixed-language programming is using two kinds of programming language or more to develop application. During the process of handling many engineering problems, the complex computation is often needed. So the method of mixed-language programming is often used in developing project software. MATLAB is high-performance numerical computation software, and VC++ is a considerably mature application development platform. They are often use in mix programming. During the process of VC++ and MATLAB mixed-language programming, when it calls algorithm function written in MATLAB in the VC++ environment, sometimes the parameters could not be easily passed to objective function. In this paper, a method resolving the parameters transfer of objective function is proposed. That is in the declaration of algorithm function canceling the objective function as one of its parameters, and adding the parameters of the objective function to the parameter of the algorithm function. Finally, a case of parallelism error evaluation system is given to illustrate feasibility of proposed method.

Abstract: The Qing-ling machine is the cleaning part of Comb-type cotton picker. Its working performance directly affects the complete machine efficiency. In order to improve popularizing rate of Comb-type cotton picker, combining with the cotton varieties, the plant characteristics, climatic conditions and the harvests requirements in Xinjiang, the reasonable structures, transmission system and design parameters of Qing-ling machine are put forward. Virtual prototypes of key components are set up under Pro/E. the kinetic simulation data are obtained by using ADAMS. Simulation results prove design correctness and provide relevant data for further research.

Abstract: The size of small-scale sugarcane harvester is decided by installation position of the cutting device of it. In this paper , Several simulation experiments were made by established a virtual prototype of sugarcane cutting system, and the relationship between the effect of holding sugarcane(measured by angle) and the installed position of cutting disk with different forward speed and different rotational speed was researched, and propose that the rotation speed of sugarcane holding device and forward speed of harvester influence the installed position of the cutting device by analyzing the data from virtual experiment. At last, a empirical regression equation which indicate the relationship among rotation speed of sugarcane holding device (n), forward speed of harvester (v) and the installed position is given.

Abstract: A framework for building network-based EDM CAPP system using intelligent technology to support organizations characterized by physically distributed, enterprise-wide, heterogeneous intelligent manufacturing system over Internet is proposed. Expert system theory is introduced. Rule-Based reasoning and Case-Based reasoning method are introduced to reason EDM method. Genetic Algorithm is applied to optimize EDM technological parameter. Fuzzy reasoning algorithm is applied to select technological data. Artificial Neural Network is applied to forecast technological effect. Internet environment and Technological knowledge database modules are introduced. Instances are also introduced to testify feasibility.