A TRIZ-Integrated Conceptual Design Process of a Smart Lawnmower for Uneven Grassland
A TRIZ-Integrated Conceptual Design Process of a Smart Lawnmower for Uneven Grassland
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不平坦草地智能割草机TRIZ集成概念设计流程
DOI：
10.3390/agronomy12112728
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
K. W. Liew
中科院分区：
文献类型：
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作者：
Chunku Kang;P. Ng;K. W. Liew
现有的智能割草机虽然方便使用，但具有重大局限性，例如缺乏对农业草原不平衡的可操作性（约束1），高充电频率（约束2）和局部市场渗透率较低（约束3）。尽管在几项设计研究中已经证明了发明问题解决理论（TRIZ）的有效性，但似乎缺乏研究使用此方法来解决智能割草机的设计困难的研究。通过使用Triz方法，本研究试图从概念上为不平坦的草原设计智能的割草机。使用了TRIZ的工具，包括因果链分析，技术矛盾，物理矛盾和物质现场建模。在开发设计概念时，通过创造性原则，分离策略和标准创造性解决方案来解决限制。对于约束1，使用适当的原理选择以下解决方案：使用较大的车轮（＃17，另一个维度：使用第二维度或第三维），枢轴设计（＃30，灵活的外壳：用灵活性和移动性替换刚性）和用具有更多功率或扭矩的电动机代替电动机。对于约束2，选择了以下溶液：为了减轻重量，在割草机外壳中添加孔（＃31，多孔材料：制作对象多孔或添加多孔元素），然后将太阳能电池板安装以用太阳能充电（＃28） ，机械替代：使用电气，磁或其他场与物体相互作用）。使用其他材料或技术最大程度地减少成本（＃13，另一种方式：使用相反的方式）和模块化设计概念来降低维护成本（＃1，分段：将物体分为独立的部分）是解决的方法约束3。还进行了概念化和设计分析。尽管该概念的有效性尚不清楚，但这些建议得到了以前的研究的支持，并且有可能解决智能割草机的一些问题。
Existing smart lawnmowers, while convenient to use, have significant limitations, such as a lack of manoeuvrability on uneven agricultural grassland (constraint 1), high charging frequency (constraint 2) and low local market penetration (constraint 3). Although the effectiveness of the theory of inventive problem solving (TRIZ) has been demonstrated in several design studies, there also seems to be a lack of research addressing the design difficulties of smart lawnmowers using this method. With the use of the TRIZ method, this study seeks to conceptually design a smart lawnmower for uneven grassland. Tools from TRIZ were used, including cause-effect chain analysis, technical contradictions, physical contradictions, and substance field modelling. In developing a design concept, constraints were solved by inventive principles, separation strategies and standard inventive solutions. For constraint 1, the following solutions were chosen with the appropriate principles: using larger wheels (#17, another dimension: using a second or third dimension), a pivot design (#30, flexible shell: replacing rigidity with flexibility and movability) and replacing the motor with one that has more power or torque. For constraint 2, the following solutions were chosen: to reduce weight, add holes in the mower housing (#31, porous materials: making an object porous or adding porous elements) and attach a solar panel to recharge batteries with solar energy (#28, mechanical substitution: using electric, magnetic or other fields to interact with object). Using other materials or technologies to minimise costs (#13, the other way around: using the opposite way) and a modular design concept to reduce maintenance costs (#1, segmentation: dividing an object into independent parts) were the chosen ways to solve constraint 3. Conceptualisation and design analysis were also performed. Although the effectiveness of the concept is unclear, these suggestions are supported by previous research and could potentially solve some of the problems with smart lawnmowers.