Advanced Materials Research Vols. 634-638

Abstract: The design of elastic cell is the essential step in the pressure sensor production. To describe the relation of pressure with the strain, the stress distribution and strain of elastic cell with different shape is simulated, applying ANSYS tools in the 100MPa pressure. Then, an acceptable shape is produced and tested. It has the similar features with simulated result and works well

Abstract: This paper carries on an illumination design about the computer classroom of Architecture and Civil Engineering College, Taiyuan University of Technology according to the rules of intensity of illumination standard value and lighting power density (LPD) stipulated in the Building Illumination Design Standard (GB50034-2004), and puts forward a feasible project in theory. In accordance with the test and subjective evaluation, it also puts forwanrd the effectiveness and feasibility of the lighting design project through theoretical calculation and actual circumstance in the classroom. This provides a reference for similar computer classroom illumination design.

Abstract: the inner flow fields of twelve Hema-type ATY nozzles which have different structure and parameters are simulated by the Fluent software, which is based on the CFD (Computational Fluid Dynamics) theory.Then the simulation results are analyzed，through wich the best designed nozzle is determined.

Abstract: Based on the elastic thin shell and layer wise theories, the first order differential matrix equation of a PCLD rotational shell is formulated. According to the principles of the finite element method and precision integration technology, a semi-analytical method, named precision element method, for the free vibration characteristic of a PCLD rotational shell is developed. Numerical results show that the present method is accurate and efficient.

Abstract: Thermal transfer behavior of small diameter thermosyphons with different fill ratio, the inner and outer temperature response at start-up, and the calculated vapor-liquid two-phase vertical flow regimes were studied. The thermosyphons were fabricated by different diameter glass tubes. The present study suggests that the best thermal conductive performance is obtained with 26% fill ratio. Inner and outer thermal behaviors were experimentally studied with innovative methods of attaching thermocouples on thermosyphon walls from both inside and outside. Experimental results indicated a very good temperature uniformity of thermosyphons. Furthermore, a 2D, planar CFD modeling using explicit Multi-Fluid VOF model in the Eulerian multiphase model was carried out to model the interaction/interface between gas and liquid as well as fluid flow movement inside the tube. Real-time vapor bubble generation, combination and vapor slug maps were derived from the simulation. A good agreement was observed between CFD acquired data and experimental observations. It is evidenced that CFD is a powerful tool to model and examine the complex flow and heat transfer in a thermosyphon.

Abstract: The palletizing robot mechanism was investigated in this paper. The concepts of the metamorphic mechanism and controllable mechanism were introduced into the design of palletizing robot mechanism, a novel controllable metamorphic palletizing robot mechanism with geometric limit, which can achieve a variety of flexible action, was designed. The working space of output of the controllable metamorphic palletizing robot mechanism was obtained through simulation study, and the kinematics characteristics of the mechanism were analyzed. The work of this paper provides some references for the practical application of such kind of mechanism in the palletizing robot.

Abstract: Belt conveyor is widely used in a variety of automated production lines and bulk material transportation is one of the most important applications. In order to improve the accuracy of the belt conveyors, it is need not only to strictly control the production crafts, more importantly, to improve the rationality of the structure and design level. Running deviation and adjusting deviation problem are important issues to be considered in a belt conveyor design process. In this study, the 3D synchronous technology of Solid Edge ST4 will be applied in the design of the belt conveyor to design a new type of anti-deviation structure. In the design process, we combine the synchronous technology with modular technology and top-down assembly modeling techniques to confirm the subject and adjust deviation. The key is the application of synchronous technology in 3D design and the new structure in Running Deviation and Adjusting Deviation. It turned out that the application of above technology can reduce design errors and avoids the repeated design, thus greatly improving the efficiency of the engineer's design. Meanwhile, the study of running deviation can make the structure of adjusting deviation come true.

Abstract: The application technology of lightweight model is a key issue in no-drawing manufacturing. Based on enterprise demand, the creation, use and management of lightweight model were studied. This paper presented the technology that lightweight model based on PDM system should be associated with the original design data, and the concrete requirements such as its size should be reduced more than one tenth by the premise of keeping consistent with geometric accuracy of the original model. This paper also put forward acquisition method, application range, file management, version management and status management of lightweight model. The contents can provide a reference for choosing creation software, making management regulation and application standard of lightweight model.

Abstract: Belt conveyor is widely used in all kinds of automatic production line and bulk material delivery is its important applications. In order to improve the operation accuracy of the belt conveyor, in addition to strictly control the production process, tracking the manufacturing process, the most important thing is to improve the design level and design efficiency. The research used Solid Edge ST4 three-dimensional synchronous modeling technology to complete 3 d model design of belt conveyer, at the same time for the standardization of belt conveyor design research. Standardized design uses synchronous modeling, modular design technology, top-down assembly modeling technology complete standardization process from scheme design to detail design. According to the structure characteristics of belt conveyor, the integral reasonable structure is divided into several modules, modules are related by key parameters. When you modify the parameters related to realize the automatic modification of model of the structure, the standardization of product design is promoted. Research focuses on synchronous modeling technology in three dimensional modeling design and application of a belt conveyor design standardization implementation, validating the fusion of synchronous modeling technology in different design module. Through the module assembly process, within the scope of certain and realize module exchange, so as to realize the belt conveyor series, universal design. To realize the standardization of structure design can reduce repeated design and design errors, thus greatly improve the engineer design efficiency.

Abstract: This paper presents a new scheme of lifting and lowering base plate used in deep-water exploration ship. The scheme with a wire rope and two fixed pulley acted as rotary lifting points ensures that the base plate can be lifted or lowered when one of the two winches breaks down. A closed circuit system is designed to actuate two winches to lift or lower the base plate. The working principle and characteristics of the hydraulic system was described. The parameters of components in the closed circuits were calculated according to the design conditions and design requirements given. Finally, the hydraulic equipment based on the hydraulic system was tested by using a simple test setup. The results of the test indicate that the hydraulic equipment meets the design requirements.