Advanced Materials Research Vols. 328-330

Abstract: In terms of the problem about paving coiled waterproof material on the highway bridge surface, an effective coiled waterproof material paving equipment is designed, and the total structure of the equipment and the function of important parts are described. The paper mainly introduces the characteristic and function of the stable walking system, automatic speed regulation system for uncoiling coiled waterproof material, agitating and leaking system of binding agent, coiled waterproof material paving self-adapted mechanism of the road surface. The equipment can adapt the condition of road surface, realizing wide area paving of waterproof material. It ensures the quality of the paving, and at the same time, enhances the paving efficiency, increases automatic level, and eases labor of technicians.

Abstract: Patent which as a carrier of knowledge contains abundant information, is an important resource of supporting innovative design. Based on the analysis and organization of the patent information of mechanical and electrical fields, this article proposes a proprietary database system for product design innovation. Through a combination of TRIZ and FBS solution process, it can provide support in the product design stage. Finally, an example of folding bike design is listed to explain the application of the patent knowledge base.

Abstract: The paper discuss the methods of extracting process features of parts from STEP AP203 file and collecting process information from the macro of CAM software. First the STEP file and its data structure are analyzed, and the method of extracting and recognizing process features is studied. Secondly, according to the different processing methods of part, the function of macros in PowerMILL is used to save excellent processing information, and the reusable process database is established. Finally, the mapping between the process features and the processing information is established. Take mold electrode as a example, these methods are proved in this paper, and a system which can recognize process features, collect processing information and program NC code automatically is developed.

Abstract: The proposed Chinese Space Solar Telescope (SST) is the first large aperture space telescope in China designed to observe the sun. With an effective aperture of Φ1m, the primary mirror faces the sun directly, which receives more than 1000W heat that will lead to unacceptable thermal distortion in such severe thermal condition. Therefore, the temperature field of SST, which is changing with its orbital position, is critical in its design. In this paper, an analysis of the thermal flux in the SST is presented firstly. Further more, the heat flux of orbit is calculated with the thermal softerware NEVADA (Net Energy Verification And Determination Analyzer) according to the orbit parameters of SST. The thermal design software SINDA/G (System Improved Numerical Differencing Analyzer/Gaski), the radiation analysis software NEVADA and the finite element analysis software MSC.Patran are used to simulate the temperature field of the SST. In the end, the temperature distribution of the primary mirror is calculated. The temperature level of the primary mirror indicates that the system can achieve high spatial resolution with 0.1″~0.15″. It also means that the thermal control design is effective. The optical requirements to the SST thermal control are met. The thoughts and methods of the thermal analysis are also useful for similar optical telescopes designed for solar observation.

Abstract: We studied the high frequency vibrator of the top drive system based on ADAMS. A parameterized simulation model of the axial rotation of gears and eccentric block is established, and dynamic change of the impact and the actual movement of the rotating components of the top drive system are analyzed. Then create a virtual prototype on the basis of that. It can obtain curves that some parameters change relative to time, such as the exciting force and the centroid position of eccentric block. Thus it achieves dynamic simulation analysis of virtual prototype of the top drive system.

Abstract: TRIZ theory is employed to design an automatic picking hook device on the dumper unloading line in thermal power plant. First and foremost, engineering parameters is listed to establish TRIZ model of practical problem, then relevant solving inventive principles is found by using conflict matrix, finally an innovative design is made and an automatic picking hook device is being initially proposed in this issue. This device can reduce not only the online failure rate, but also the labor intensity and operation difficulty.

Abstract: Users consume products all the time, while companies produce products all the time. Product is the fundamental where enterprises have their foothold and product development is the only way to business survival and development. To conduct effective product development, enterprises must have scientific marketing strategy and rational ideas of development. Therefore, to analyze the ideas in product development design from the perspective of product extension in marketing helps expand the vision in product development, define product development objectives and also helps to find the accurate positioning of product design.

Abstract: This paper presents the dynamic precession of the moments of the grains based on LL equation, and the impact of the interaction between the grains on the minimum switching field threshold and the speed of the switching process in the microwave field is investigated.As an isolate grain, microwave assisted switching could enhance minimum switching field threshold and switching speed.

Abstract: This work is to present layout optimization of support structure based on ANSYS with stress constraint. Currently size, shape and topology optimization have been well studied, but layout optimization is still in the early stage and its application is limited by its massive mathematical model. In this paper the problem of numerical calculation is solved by the optimization algorithms of ANSYS and then through studying the mathematical model, sensitivity, controlling parameters and optimization criteria of it a toolkit is designed and programmed by C# language. At last, an optimization case is studied and the results show that more reasonable design prototypes can be found for engineers through using the toolkit especially in the conceptual design stage.

Abstract: In this paper, the visualization of three-dimensional (3-D) temperature distributions in the supercharged boiler furnaces from radiative energy images captured by multiple charge-coupled device (CCD) cameras mounted around the furnace is studied numerically for the first time. The combustion of supercharged boiler is analyzed by structuring a full-scaled model and grid partition. The calculation of the radiative energy image formation is a fast algorithm based on the Monte Carlo method and the two-color temperature calculation method. For the inversion of the 3-D temperature distributions, a modifiedregularization method is used. The simulation results show that: even though the measurement error of the radiative energy images for the 3-D temperature distributions up to 0.12, the position of the reconstruction high-temperature zone is almost the same to the one of the simulation. The results indicate that the reconstruction quality is satisfactory, and the method can lead to a good visualization result.