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Volume 45 (1998)
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Volume 45, Issue 4
Displaying 1-9 of 9 articles from this issue
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Rei Takanashi, Norihiko Mori, Atsushi KataokaArticle type: Article
1998 Volume 45 Issue 4 Pages 1-8
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSThis paper proposed a system which generates variations of a product form given 2-dimensional figure. This system is characterized by offering variations as form figures in stead of form specifications, and by keeping the product's own properties. The first, transformation of characteristics is formulated using a nonlinear function related to the difference between the original form and a certain defined basic form. The second, the formulated transformation is diversified into emphasis, mitigation, modulation and reverse emphasis. The third, a spline function is adopted to draw the figure. Simulations are executed for the side view form of BMW3,and proved that the diversified transformation corresponds to the management policy of product identitiy, and that the system gives variations some reflection of change of the times using average form of cars existed in the past days as the basic form.View full abstractDownload PDF (1042K) -
Mineteru OhmoriArticle type: Article
1998 Volume 45 Issue 4 Pages 9-14
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSBy using the recent CG technique, we can behave in the virtual environment which is free from restraints of both real time and real space. This report discussed the characteristic of recognition in the form of graphic images (inhabitant space). The results were summarized as follows. 1) There are almost two trends in our recognition. One is trend that the portion is grasped from the total composition. The other is trend that the portion generates the total composition. 2) Recognition of graphic images is advanced by the searching process. Accuracy of recognition is increased. But, grasping the volume and shape of the space has difficulty. 3) This factor is thought as follows. In the graphic images, we can't apply our experiment adequately, because graphic images stimulate the visual sense alone.View full abstractDownload PDF (906K) -
Mitsuo Kamaike, Shigeru Furuya, Makoto Watanabe, Jhon Shackleton, Shin ...Article type: Article
1998 Volume 45 Issue 4 Pages 15-24
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSThe object of this study was to examine the merchandise configuration of automobiles and clarify the present situation of the lineup, including their special characteristics. In order to accomplish that, we made an inquiry into the factors involved in the configuration and the existing categories. The configuration of the merchandise is divided into nine classifications. Furthermore, we found out that it is further divided into three more types based on the factors involved in the merchandise lineup and the characteristics of the samples of each group. One type is the group based on the rank of the car according to its size, from small to large. Another is the RV type. And the third is the sports car type. As the conventionally ambiguously used ranking of the merchandise lineup of automobiles, which has been the standard for evaluating the merchandise, the results of analyzing the main specifications suggested that they are closest to the mobility, which expresses the total performance of the car. Furthermore, after performing the judgement examinations on similar merchandise from a viewpoint based on merchandise value, we obtained the same results as the above-mentioned study. From that, we found out the results of the examination match the concept of the merchandise that the user has.View full abstractDownload PDF (1306K) -
Hideaki Meguro, Masayuki Nakamura, Takao Furukawa, Yoshio ShimizuArticle type: Article
1998 Volume 45 Issue 4 Pages 25-34
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSThis paper describes verification of using CATV as a high-speed data transmission line for the real-time collaborative design system, which designs products basing on individual demands that become clear by real-time interaction between makers and users. In the real-time collaborative design system, it is assumed that transmission of large files, sharing application software, and video conference are essential functions. And these data's formats are different. Low-costed and always connecting high-speed transmission line is indispensable for transmitting these data, and development of software and generality of the system are much affected by the type of transmission data line. We picked up CATV as an available transmission line, and shows practical value of it by a model of bandwidth. Moreover, as the result of experiment that transmitted data every essential functions, the ability of transmission on the level of application bacame clear and it shows comparable performance with the 10BaseEthernet. Consequently, it is confirmed that CATV channel is available for high-speed transmission line.View full abstractDownload PDF (1911K) -
Michiko AkibaArticle type: Article
1998 Volume 45 Issue 4 Pages 35-44
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSRecently the word 'public art' is widely used both accademically and jounalistically. But the definition of the word hasn't established yet, and there are many different understandings about 'public art'. This seems to interfere positive discussion about the subject. In this review I tried to classify many understandings of 'public art' by 4 points-what 'public' and 'art' means, who places the art, and why the art exists. After that I grouped examples of 'public art' into the following 6 types. 1) art created on a public site 2) art installed on a public site 3) art with architecture 4) art with citizen 5) artistic event on a public site 6) artistic object on a public site Through this analysis I suggest that it's necessary to define the word 'public art' clearly for the future study.View full abstractDownload PDF (1952K) -
Hisaaki ItoiArticle type: Article
1998 Volume 45 Issue 4 Pages 45-54
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSDesign right is one of the industrial property rights and, like patent right and utilitymodel right, it protects legally the original element of a product. By applying for design right strategically, you can defend your product planning. Likewise, by attacking your competitor's design strategically, you can weaken the competitor's business predominance and strengthen your own counterattack position. This study looks into the relation of market competitive position to design registration application strategy and aims at clarifying the strategic elements of design registration application for the purpose of enhancing business predominance. By this study the following strategic elements have become clear ; 1) Design registration application strategies vary according to market competitive positions ; 2) Design registration application strategies can be classified into a defensive type and an offensive one ; 3) A design registration application is a management decision based on business competitiveness and design one.View full abstractDownload PDF (1568K) -
Hiroshi NashiharaArticle type: Article
1998 Volume 45 Issue 4 Pages 55-64
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSThe purpose of this study is to construct a design evaluation method in relative to usefullness of tools that are designed both for the aged and for common use, from viewpoint of uncertain use evaluation. In this report, the generation details of uncertain use and its properties are infered from design process and use process. The source of uncertain use evaluations are generated from every design process which are consist of conceptural planning process, design specification process and design solution process. The 7 details are generated. The design process which generate the uncertain use evaluation is able to be founded, when it is traced backward from the use evaluation. It is inferenced that the use evaluation results (strains) obtain from the use evaluation items (loads) are able to express by certain strains and uncertain strains, and the strains are changeable in the use progress. And the strains are dominated by the use condition and the low degree of functional activities of mind and body with aged.View full abstractDownload PDF (1627K) -
Muling Tian, Kazuo Sugiyama, Mitsuo Kamaike, makoto Watanabe, John Sha ...Article type: Article
1998 Volume 45 Issue 4 Pages 65-74
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSBuilding on previous work, this paper proposes an interactive exploration system for car design, simulating the design procedure as a co-evolution process. Designers do not have a complete specification before commencing a design synthesis. During the conceptual design phase, designers explore ideas to get a better understanding of the problem, rather than focusing on simply finding a solution. It is not enough just to reach a solution ; comparison and selection of ideas, as well as an overall iterative process are needed. Therefore, the building of an iterative search system for ill-defined objectives was the main purpose in this study. The exploratory experiment simulated car development and noted the effect of user-feedback in the iteration. The results of the experiment demonstrate that both the method presented, and its software implementation, are efficient and have good potential for use in conceptual design.View full abstractDownload PDF (1418K) -
Yoshiyuki Fukouzu, Akira Itoh, Tomio Yoshida, Terumi ShiraishiArticle type: Article
1998 Volume 45 Issue 4 Pages 75-82
Published: November 30, 1998
Released on J-STAGE: July 21, 2017
JOURNAL FREE ACCESSIn the previous report, it was adequate physiologically and psychologically that the visual threshold of a spot light near by a figure was expressed using a lateral inhibition model. We, in this report, get visual properties by psychological experiments, and try to descript visual space as a simple model named visual space transfer model F_<(1)>. In this new model, multi inhibition layers are approximated to one layer, and corrected by some visual properties as : 1) directional anisotrophy 2) spatial frequency 3) retina neuron density 4) intensity of figures. And, we generalize experimental conditions (view distance and brightness). As a result, we get a better coordination between theoretical value, and experimental value. Additionally, we considered the difference between psychological experiments, electro-magnetic models, lateral inhibion model F_<(0)>, and visual space transfer model F_<(1)>.View full abstractDownload PDF (1112K)
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