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Volume 63, Issue 615
Displaying 51-54 of 54 articles from this issue
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Weerapat SESSOMBOON, Hiroshi NAKANO, Takashi IROHARA, Kazuho YOSHIMOTO1997 Volume 63 Issue 615 Pages 4050-4056
Published: November 25, 1997
Released on J-STAGE: February 26, 2008
JOURNAL FREE ACCESSRecently, due to consumer demands have been varied, it is essential that a facility layout is able to adapt to the demands dynamically. In this paper, we present a technique to solve a dynamic layout problem. We deal with the problem by simulataneously considering two kinds of flexibility. One is involved with the rearrangement and the changing size of departments. The other is for the fixed area and shape of the building. The Bottom-Left (BL) algorithm is integrated in the technique in order to treat rectangular departments. The two steps Geretic Algorithm (GA) to improve the solutions, which involved an operation called GENITOR algorithm, is proposed. Numerical experiments are carried out to demonstrate the effectiveness of the proposed technique.View full abstractDownload PDF (723K) -
Weerapat SESSOMBOON, Toshihiko MUROFUSHI, Takashi IROHARA, Kazuho YOSH ...1997 Volume 63 Issue 615 Pages 4057-4064
Published: November 25, 1997
Released on J-STAGE: February 26, 2008
JOURNAL FREE ACCESSIn this paper, a layout technique for unequal area and shape departments with a main aisle is proposed. In this technique, layout is represented by the flexible aisle structure (FAS), which is an improvement on the flexible bay structure (FBS), by considering the main aisle inside the building. FBS and FAS treat unequal area and unfixed rectangular shape departments. By using FAS, assignments of departments and aisle structure are optimized simultaneously during the search. In the objective function, which is based on the material handling cost between departments, we use the distance between departments along aisles, in order to take into account the existence of the main aisle. Also, a new measurement for evaluating department shapes, which have unequal area, unfixed rectangles, is proposed. Experimental results indicate the effectiveness of controlling department shapes by this new measurement and of using distance along aisles in the objective function.View full abstractDownload PDF (784K) -
Yoshitaka TANIMIZU, Nobuhiro SUGIMURA, Kazuaki IWATA, Masahiko ONOSATO1997 Volume 63 Issue 615 Pages 4065-4070
Published: November 25, 1997
Released on J-STAGE: February 26, 2008
JOURNAL FREE ACCESSComputer-integrated manufacturing (CIM) draws upon many important areas of manufacturing automation, such as CAD, CAM and MRP. It is not necessarily the sum of these compooents but the linking of them into an interoperable system that satisfies the various strategies and objectives of the CIM systems. The objective of the present research is to develop a formal modelling method in order to realize concurrent development and integration of the various CIM models. A model architecture of the CIM is discussed to establish systematic and logical criteria for classifying the CIM models. A computer-aided method is also proposed based on the model architecture in order to examine the consistency among a set of CIM models which are designed to represent the various aspects of the CIM system being analyzed.View full abstractDownload PDF (1023K) -
Hiromu NAKAZAWA, Satoshi NAKANO1997 Volume 63 Issue 615 Pages 4071-4077
Published: November 25, 1997
Released on J-STAGE: February 26, 2008
JOURNAL FREE ACCESSThis paper deals with the concept of human-interactive control (HIC), which is one of the basic technologies for the implementation of a human-oriented manufacturing system. The HIC system was incorporated in a CNC lathe using a laser displacement meter. Higher machining accuracy was obtained through the HIC system as compared to that obtained with the conventional feedback control system. Moreover, increased satisfaction of both novices and skilled workers was obtained for the HIC system as compared with the conventional one.View full abstractDownload PDF (815K)