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題名 | 複合材料醫療床板之設計與製作=Design and Manufacturing of a Composite Medical-Bed Plate |
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作者 | 張瑞榮; 戴文正; 吳豐宇; 夏聖洋; Chang, R. R.; Dai, W. J.; Wu, F. Y.; Jia, S. Y.; |
期刊 | 中華科技大學學報 |
出版日期 | 20140400 |
卷期 | 59 2014.04[民103.04] |
頁次 | 頁1-28 |
分類號 | 410.025、410.025 |
語文 | chi |
關鍵詞 | 複合材料; 編織碳纖布; 發泡材料; 三明治結構; 真空樹脂轉注成形; 最佳化設計; Laminated composite materials; Weave carbon fiber; Expanded polypropylene; Sandwich; VARTM; Optimum design; |
中文摘要 | 本研究是指一種複合材料醫療床板的設計與製程技術有關,其中複合材料結構設計包括編織碳纖維布及發泡材料(polypropylene),而發泡材是固體狀,主要由發泡級聚丙烯PP發泡而成。醫療床板以複合材料結合發泡材料取代傳統鋁金屬材料而產生優點,例如重量輕、強度高、X光透視率等,有效結合同質或異質材料,達到最佳結合之設計目的。本研究也提供一種醫療床板的製程,利用真空樹脂轉注成型法,將編織碳纖維布與EPP發泡基板形成三明治層複合材料結構,利用真空樹脂轉注成型法注入樹脂於設定之模具內,使模具內預成形物與樹脂充分膠合浸泡,並設定溫度將模具放置於烤箱內使其熱硬化成形,如此可減輕醫療床板重量及加工成本,進而利用高強度均勻結構,增進整體床板受力效果。使得達到異質材料結合及減輕重量之目的。在理論方面,利用有限元素軟體ANSYS來分析及最佳化理論設計疊層排列方向模型,尋求多重起始點總域性最佳化纖維排列角度,並探討醫療床板採用材料之應力分布來選擇材料,再與Fortran程式連結最佳化理論分析,並以合適的懸臂板為基礎驗證醫療床板的受不同載重下之破壞情形,進行靜態壓力的試驗,研究理論分析與實驗之應力強度模式,經比較後理論值與實驗值相當接近,故證明本文所設計的複合材料醫療床板製程改善可以達到最佳化設計目標。 |
英文摘要 | This research presents the design and manufacturing of a composite medical-bed plate, the composite structure includes woven carbon fiber with foam-filled sandwich material, which made of expanded polypropylene (EPP) foam synthesis. The body of the plate combined with foamed substrate in composite materials to replace the traditional aluminum metal material brings advantages such as, light weight, high strength, X-ray transmission, etc. Besides, this feature can effectively combine homogeneous or heterogeneous materials to achieve the best combination of the design purpose. This study also provides the design and manufacturing process of a composite medical-bed plate by using vacuum resin transfer modeling (VRTM) method. Woven carbon fiber with foam-filled sandwich layer composite structures using VA-RTM method to inject resin in pre-set mold, so the prepreg is soaked with resin fully cemented meanwhile, the set temperature of the mold was placed in the oven to thermally hardened molding. Thus, relieve the weight of the medical-bed plate and processing costs. Moreover, use of the uniform structure of the high strength, enhancing overall force effect of medical-bed plate to reach heterogeneous material integration and reduce the weight of the structure. Theoretical aspects of using finite element ANSYS software to analyze and design geometry model, and review adoption of the stress distribution of materials to select material, and then link with FORTRAN software program to analysis failure criterion, a suitable failure criterion will be selected to verify the damage situation of the sandwich plate and proceed static pressure To compare the theoretical and experimental values are quite close, it is proved that this optimum design medical-bed plate is able to meet the target of design. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。