| Co-Investigator(Kenkyū-buntansha) |
YODA Akira Univ. of Tsukuba Agricultural and Forestry Research Center, 農林技術センター, 教務員
KUROISHI Iwao Univ. of Tsukuba Institute of Agricultural and Forest Engineering Assistant Prof, 農林工学系, 講師 (70015668)
湯沢 昭太郎 筑波大学, 農林工学系, 助教授 (20015655)
小中 俊雄 筑波大学, 農林工学系, 教授 (60024569)
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| Budget Amount *help |
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1990: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1989: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Research Abstract |
In this study, practical approaches for the analysis of tractor members utilizing the bionic design technique has been made. The bionic design is able to provide creative designing procedures while learning the composite tissue structures which seemingly exist in actual biological world. Important findings can be drawn as follows.
Firstly, adopting the comprehensive application software of FEM, HISA II, ordinary type of strength analyses for selected members including drawbars, upper-link of three point linkage, safety frames etc. were conducted to accumulate both qualitative and quantitative designing information. For the composite materials, the bionic design technique was applied to achieve the minimum-mass or minimum-cost designing goals without sacrificing the prerequisite requirements of machine functions.
Secondly, practical effectiveness of the engineering workstation was recognized due to its quick turnaround time and colorful visual representation mode. Based on this sophisticated hardware system, another software being suitable for solving optimum design problems, HISAOPT, was discussed in order to ascertain the designing criteria. Desirable weight reduction taking into account the mass and strength of materials can be done after placing the design parameters properly.
Tertiary, coliposite materials are served seeking for further improvement of the commercially available materials updating composition of constitutive elements. Several numerical executions are conducted for the sake of their confirmation in terms of applicability for practical use. Suppose a newly-developed material is in harmony with the concept of shape-and function-design, such an idea is worthwhile for manufacturing aspect. As a result, possibility for versatile usage of designing procedures described above has been clarified aiming for further technological development through this research.
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