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Study of morphogenesis of a large-span roof that satisfies its form design requirements Taking shell thickness into consideration

机译：满足型壳设计要求的大跨度屋顶形态研究

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The computer performance is improving, and the various system optimizations by using the evolutionary computing are developed in recent years(K.Mitsui et al., 2004). Though the forms of large span roofs can be built free, the mechanical performances of the roofs are greatly different according to those forms.Moreover, though the aesthetic sensibility is demanded, the studies of morphogenesis which consider the aesthetic sensibility and mechanical rationality are few.We have been studying about morphogenesis that satisfies aesthetic sensibility and mechanical rationality(K. Tsutsumi,Y. Takeda, 2004).However we evaluated mechanical rationality as the equivalent stress under same roof board thickness, therefore we have not examined whether each element stress satisfies the design specification value or not. Then, the purposes of this study are as follows.1) To develop an idea support morphogenesis system that proposes the form which satisfies the designer's image and has minimum volume satisfies specified stress by considering each roof board thickness, using the Genetic Algorithm.2) To analyze variable trend of forms to become optimal forms by changing each roof shell thickness.
机译：近年来，计算机的性能正在不断提高，并且利用进化计算开发了各种系统优化技术（K.Mitsui等，2004）。尽管大跨度屋顶的形式可以自由建造，但屋顶的力学性能却因这些形式而有很大差异。此外，尽管对美学敏感性有要求，但对美学敏感性和机械合理性进行形态形成的研究却很少。我们一直在研究满足审美敏感性和机械合理性的形态发生（K. Tsutsumi，Y。Takeda，2004）。但是，我们将机械合理性评估为在相同屋顶板厚度下的等效应力，因此我们没有检查每个元素应力是否满足设计规范值与否。然后，本研究的目的如下：1）开发一种思想支持形态生成系统，通过考虑每个屋顶板的厚度，提出一种能够满足设计者形象并且最小体积满足指定应力的形式，并使用遗传算法。2）通过改变每个屋顶壳的厚度来分析形式的变化趋势，使其成为最佳形式。

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