A hybrid conceptual design approach was introduced in this study to develop a conceptual design of oil palm polymer composite automotive crash box(ACB). A combination of theory of inventive problem solving(TRIZ), morp...A hybrid conceptual design approach was introduced in this study to develop a conceptual design of oil palm polymer composite automotive crash box(ACB). A combination of theory of inventive problem solving(TRIZ), morphological charts and biomimetics was applied where the foremost requirements in terms of the material characteristics, function specifications, force identification, root cause analysis, geometry profile and design selection criteria were considered. The strategy was to use creations of nature to inspire five innovative conceptual designs of the ACB structure and the AHP method was applied to perform the pairwise analysis of selecting the best ACB conceptual design. A new conceptual design for a composite ACB was conceived bearing in mind the properties of natural fibre, unlike those of conventional materials such as steel alloys and aluminium alloys. The design with the highest ranking(26.6 %) was chosen as the final conceptual design, which was the one with a honeycomb structure for the outermost profile, reinforced with a spider web structure inside the part, supported by fibre foam structure extracted from the woodpecker sponge tissue at the centre to maximize the energy absorption capability. The new design could solve the problem of bending collapse which is a major cause of failure to absorb maximum impact energy for ACB during collision. However, the final conceptual design will still need several modifications for production and assembly purposes, which will be completed in a further study.展开更多
为提高现有铁钻工遥控盒产品的使用舒适度与操作效率,提出一种融合层次分析法(Analytic Hierarchy Process,AHP)、灰色关联法(Grey Relation Analysis,GRA)和逼近理想解排序法(Technique for Order Preference by Similarity to Ideal S...为提高现有铁钻工遥控盒产品的使用舒适度与操作效率,提出一种融合层次分析法(Analytic Hierarchy Process,AHP)、灰色关联法(Grey Relation Analysis,GRA)和逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)与人机工程的产品设计评价方法。通过调研问卷与实地访谈量化设计需求,构建铁钻工遥控盒评价模型确定综合权重;结合人体手部结构与视觉特性,根据人机工程相关原则对产品整体造型尺寸与显控元件布局进行改进设计;将灰色加权关联度融入TOPSIS法对方案进行综合评价与选优,并通过CATIA仿真软件进行验证,证明优化后的产品方案可有效提高铁钻工遥控盒的操作舒适度。通过方案评价模型提高了设计过程中的科学性与严谨性,为铁钻工操作控制系统的设计方案决策提供思路与参考。展开更多
基金Project(6369107)supported by the Ministry of Higher Education,Malaysia
文摘A hybrid conceptual design approach was introduced in this study to develop a conceptual design of oil palm polymer composite automotive crash box(ACB). A combination of theory of inventive problem solving(TRIZ), morphological charts and biomimetics was applied where the foremost requirements in terms of the material characteristics, function specifications, force identification, root cause analysis, geometry profile and design selection criteria were considered. The strategy was to use creations of nature to inspire five innovative conceptual designs of the ACB structure and the AHP method was applied to perform the pairwise analysis of selecting the best ACB conceptual design. A new conceptual design for a composite ACB was conceived bearing in mind the properties of natural fibre, unlike those of conventional materials such as steel alloys and aluminium alloys. The design with the highest ranking(26.6 %) was chosen as the final conceptual design, which was the one with a honeycomb structure for the outermost profile, reinforced with a spider web structure inside the part, supported by fibre foam structure extracted from the woodpecker sponge tissue at the centre to maximize the energy absorption capability. The new design could solve the problem of bending collapse which is a major cause of failure to absorb maximum impact energy for ACB during collision. However, the final conceptual design will still need several modifications for production and assembly purposes, which will be completed in a further study.
文摘为提高现有铁钻工遥控盒产品的使用舒适度与操作效率,提出一种融合层次分析法(Analytic Hierarchy Process,AHP)、灰色关联法(Grey Relation Analysis,GRA)和逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)与人机工程的产品设计评价方法。通过调研问卷与实地访谈量化设计需求,构建铁钻工遥控盒评价模型确定综合权重;结合人体手部结构与视觉特性,根据人机工程相关原则对产品整体造型尺寸与显控元件布局进行改进设计;将灰色加权关联度融入TOPSIS法对方案进行综合评价与选优,并通过CATIA仿真软件进行验证,证明优化后的产品方案可有效提高铁钻工遥控盒的操作舒适度。通过方案评价模型提高了设计过程中的科学性与严谨性,为铁钻工操作控制系统的设计方案决策提供思路与参考。