Advanced Materials Research Vols. 774-776

Abstract: The purpose of this study is to determine the correct estimation of the mechanical property between epoxy resin and PEEK sheet as the composites and its validity has been tested with the alternative materials of the metal-based materials for artificial hip joint. Moreover, this work evaluated the mechanical properties according to the moisture absorption and the fractured surfaces of Carbon/Epoxy and Carbon/PEEKcomposites were also evaluated. First, the specimens for the Carbon/PEEK and Carbon/Epoxy composites manufactured with the ASTM standard. The specimens immersed in distilled water at 37°C during 100 days and the coefficient of moisture was measured in according tothe Fick's law. In addition, this work evaluated the fracture energy according to the fiber ply orientation. As a result, the coefficient ofmoisture-absorption of Carbon/PEEK composites was the lowest because the interface coherence with the fiber and resin are the most strong. Also, the fracture energy of the Carbon/PEEK composites was more excellent than the Carbon/Epoxy composites.

Abstract: The purpose of this study is to determine the correct estimation of the various designs for artificial hip joint of the Carbon/PEEK composites. Validity of the study has been tested with the alternative materials for the metal-based materials for artificial hip joint. Moreover, this work evaluated the FEA according to the fiber ply orientation and the condition of load. The stem shape of two kinds was designed through the normal shape of the femur. Three load cases of 1kN, 2.5kN and 5kN were used for each of FEA model. In the case of general shape, the results by ply configuration showed that the stress of ply configuration I was lower compared to ply configuration II and III. On the other hand, in the case of curved shape, ply configuration II were lower compared to ply configuration I and III. The result was checked that the stress of curved shape was higher than that of the general shape in the load of 2.5kN. It could be confirmed then that a similar phenomenon would occur in the condition of 5kN load. However, in the case of ply configuration II, the stress of the curved shape was lower than the stress of the general shape.

Abstract: In this study, the solvent extraction of Pd(II) from hydrochloric acid solutions was investigated using the new synthesized material, 2-ethylhexyl benzothiazolyl sulfide (EHBTS) which was dissolved in xylene. Pd(II) was strongly extracted by 7% EHBTS in a lower concentration hydrochloric acid solution. Extraction parameters of Pd(II), including EHBTS concentration in different diluents, contact time of aqueous and organic phases, organic/aqueous (O/A) phase ratio and HCl concentration of aqueous phase, were studied. Quantitative extraction of Pd(II) occurred at 0.1 mol.L-1 of HCl concentration, 7% of EHBTS concentration, 1.0 of O/A, 40 min of contact time. In addition，the percentage stripping of Pd(II) could be more than 98% when thiourea concentration was 0.8 mol.L-1. EHBTS can be used more than 8 as extractant to extract of Pd(II) from hydrochloric acid solutions.

Abstract: Detected the cracks in porcelain insulator is a strategy to prevent failure. This study proposes a remote detect technique to inspect the cracks in on-line porcelain insulator based on laser-generation based imaging (LGBI) method. Two porcelain insulators samples A and B were designed. Samples A is a 10kv porcelain insulator work outdoors, it has five artificial notch-type defects in the cylindrical surface of porcelain insulator. Sample B is a 10kv porcelain insulator work indoor with aging cracks. All defects in two specimens were detected by laser ultrasonic visualizing inspector (LUVI). Images are quite convenient to confirm cracks morphology. The experiment proves that the cracks in porcelain insulator can be detected by LUVI system.

Abstract: In this pape, we have researched the digital precision forming machine without pattern casting, and discussed the motion of the machine and tool path simulation technology based on VRML. By updating IndexedLineSet node, we have realized the real-time display of tool path; and by setting DOF node, we have simplified motion simulation of the machine, and completed the synchronous, real-time simulation for motion of the machine and display of the tool path. The final simulation result is approach to the actual operating status of equipment, and the application results are of great theoritical significance and practical application value to design optimization and operation training of the code.

Abstract: The paper deals with the issues of Slovak industrial enterprises in the field of Logistics and Manufacturing. The authors describe theoretical possibilities of improving manufacturing systems through the use of Kaizen, Simulation and Optimization. Authors also present results of the survey, which was conducted in Slovak industrial enterprises. The last part of the paper shows practical examples of improving manufacturing systems using different methods. The main aim of the paper is to summarise theoretical knowledge for the improvement of manufacturing systems through Kaizen and Optimisation by Simulation, compare results of the survey in Slovak industrial enterprises and finally suggest new approaches for industrial enterprises to improve their manufacturing systems.

Abstract: A three-DOF parallel manipulator with two rotations and one translation was put forward as a levelling mechanism in this paper. Its structure and kinematics were analyzed and the first-order influence coefficient matrix was obtained by using the influence coefficient method. Then the complete and concise dynamic equations without too many unknowns were established based on Lagrange method. In addition, the dynamics simulation was carried out and the result shows that drive forces of the legs have no strong coupling, which is important to control system design.

Abstract: On the basis of modern technology of wireless communication and wireless local area network, a concept of Digital Human (DM) is put forward. DM change ordinary man-machine coordinated mode as DM-machine coordinated mode. Base on the discussion of the realization of DM, an innovated mode of digital shop floor manufacturing system is put forward also by introducing the mobile computing technology. Finally, the innovated mode of Man-Machine Coordinated Digital Shop Manufacturing system (MMCDSM) is presented. This paper also analyzes the network architecture and function module of this type of shop floor manufacturing system. Finally, integrating with multi-agent technology and workflow technology, a new methodology of role-based workflow modeling by utilizing multi-agent & DM is also put forward which can be applied in the MMCDSM.

Abstract: Aimed at The key problem for manufacturing resource integration and retrieval of the networked manufacturing resources sharing and reuse, by analyzing the characteristics of the enterprise manufacturing resource and ontology,OWL ontology modeling method based on manufacturing resource carrier was proposed,manufacturing resource was integrated and index by modules; so, manufacturing resource was network reused and shared by carrier was evaluated and index, product development time was reduced, competitiveness was enhance. Finally, wrapper module of paper packaging machine as an example to proves the feasibility of the method.

Abstract: Facing the condition of scattered and disorder design knowledge and insufficient innovative capacity of Small and Medium Enterprises (SMEs) in Cloud Manufacturing environment, making for the design of knowledge assembled into orderly combination of knowledge resources, this paper presents the service capacity of evaluation model of knowledge resources and programming knowledge resources in the assembly sequence the mathematical model of the planning and design to solve the model of quantum harmony search algorithm (QHS). QHS algorithm bases on the Latin hypercube (LH), and improves the global search capability through the introduction of quantum coding and quantum gate transformation. Taking mold design knowledge of SMEs resources planning issues as example, according to the mathematical model, QHS algorithm aims to solve the knowledge resources assembly sequence of the optimal design in the cost and quality constraints, and verifies the feasibility and practicality of the method. This paper has practical significance to improve the overall SMEs innovation and design capabilities and make the reuse of the design knowledge more efficiency in the Cloud Manufacturing environment.