Advanced Design and Manufacturing Technology III

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Authors: Mi Kai, Yun Hu
Abstract: Assessing the potential risk of mission via analyzing the product life cycle data (APRPD) is a useful aerospace product quality assurance tool. The structure of aerospace product parameters has become increasingly complex and correlations exist among the multi-dimensional parameters. It is necessary to take the correlation into account when deriving an effective APRPD analysis. In this article, a density-based APRPD approach for multi-dimensional is proposed. The local outlier factor (LOF) of the observation is investigated and according to the LOF value the potential risk are assessed. This non-parametric APRPD approach can be used to analyze non-linear correlated data and does not require any data distribution assumption. The performance of the approach is demonstrated via a numerical case.
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Authors: Yu Cheng Pan, Di Liang, Xiang Fei Ma, Hua Dong Wang
Abstract: Compared with the traditional value stream mapping technique which is based on the material flow and information flow, this paper combines the supply chain knowledge flow and the value stream mapping technique to come up with a new value stream mapping model which is based on the material flow, information flow and knowledge flow. Using the new model, this paper analyzes the knowledge flow for the production process of car sets in a company and solves the real problems mainly at the aspect of knowledge flow. Consequently, information barrage is eliminated, line balance is increased by 25.2%, and knowledge flow cycle is shortened by 15.8 days
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Authors: Xiang Fei Ma, Di Liang, Yu Cheng Pan, Hua Dong Wang
Abstract: Based on intermittent production line balance problem, Minitab statistical tool is used for data random distribution fitting in this paper and the car body production line model of one company is established and simulated under Flexsim environment, which benefits the line imbalance problem to be found quickly and accurately. Designing optimal program based on project management network analysis and making simulation and evaluation, the productivity is improved effectively and the time to balance and optimize production line is shortened greatly.
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Authors: Xiao Mei Hu, Yang Yang Zhang, Lei Zhao, Li Zhao
Abstract: The 21st century is the century of quality. The core of product competitiveness depends on the quality. One of the important issues in the manufacture is how to manufacture high quality products, which cannot only satisfy the demand of users, but also win the competition and make more living space. The existing modern advanced manufacturing modes are summarized and a new mode of advanced manufacturing technology, trusted manufacturing (TM) is put forward. The concept of TM is defined. And differences among TM, concurrent engineering and lean manufacturing are discussed. The system architecture of TM and its features are also proposed. In the end, the goal of TM and the application prospect of TM are described.
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Authors: Lehel Csokmai, Ovidiu Moldovan, Ioan Constantin Tarca, Radu Tarca
Abstract: This paper introduces a new type of software framework for error troubleshooting in flexible manufacturing systems using a frame marker device. Our framework system meant to resolve the failures originated from the human-machine interface and to generate self-training from previous experience.
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Authors: Ru Sheng Lu, Bin Xu, He Ting Huang, Guo Sheng Zhang, Zhi Xin Wu
Abstract: The high-efficiency cleaning is one of the key technologies in the remanufacturing process. It is the premise and guarantee for remanufactured core inspection and machining. It also is an important link to improve quality and reliability of remanufactured products. On the basis of analyzing the structural feature, working conditions and main dirt of worn-out or discarded component of axles and transmission of construction machinery, the remanufacturing cleaning technology is discussed.
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Authors: Zhi Long Wang, Bang Gui He, Qian Ru Tian
Abstract: Continuous reel low weight and multi-color soft pack trademarks are used in the high-speed large-volume packaging production process during some new production process. However, most of the existing equipments in the factory are discrete single production machine. Therefore the production process of multi-feature continuous reel soft pack trademarks is needed to be solved urgently. Multi-feature continuous reel soft pack trademark set printing color clarity, color graded accuracy, trademarks pattern and text position accuracy in one. Disposable multi-point high-precision positioning technology, flat local heat transfer technology and digital intermittent control technology are used to achieve continuous reel trademarks high-precision double location synchronization hot stamping. That is, multiple convex word and laser holographic anti-counterfeit pattern intermittent synchronization hot stamping. Machine vision inspection system scan each pixel of trademark with high-speed CCD array and collect it into a computer database for comparison with the standard sample. The defects are recorded by electronic coordinates, building electron stripping system and removing unqualified trademarks, a set of production process system of new continuous reel soft pack trademarks is achieved. This research provides a theoretical basis for technological transformation of enterprises and products the new packaging production, completes its corresponding transformation and crafts integration. It could help enterprise form a new production process system.
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Authors: Jing Jun Du, Guo Xin Wang, Yan Yan, Qian Sang
Abstract: In order to make manufacturing system to adapt to the rapidly changing global market environment, Reconfigurable Manufacturing Cells (RMCs) based on balanced distribution of machines function were presented. Firstly, Similarity Coefficient Method (SCM) was used to cluster some parts to form part families which are the foundation of RMC. Then, a mathematical optimization model was set based on the workshop layout whose functional characteristics are balanced distribution. Tabu Search (TS) algorithm was designed to solve the selection problem of process routes. In the algorithm, a recycled search method was used to generate an initial feasible solution, and then the method of swapping adjacent elements was used to generate neighborhoods. Finally, software MATLAB was used to realize the algorithm, and a case study of simulation was used to verify the feasibility and effectiveness of the algorithm.
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Authors: Nan Zhao, Hong Yu Shao
Abstract: According to the current situations of the unorganized and disorderly design knowledge as well as the weak innovation capability for SMEs under cloud manufacturing environment, and aiming at combining the design knowledge into ordered knowledge resource series, the service ability assessment model of knowledge resource was eventually proposed, and moreover, the Projection Pursuit-Principal Component Analysis (PP-PCA) algorithm for service ability assessment was further designed. The study in this paper would contribute to the realization of the effectiveness and accuracy of the knowledge push service, which exhibited a significant importance for improving the reuse efficiency of knowledge resources and knowledge service satisfaction under the cloud manufacturing environment.
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