| Innovative Design |
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| Construction of product digital twin model based on design task in conceptual design |
| BAI Zhong-hang1,2, SUN Yi-wei1,2, XU Tong1,2, DING Man2 |
1.National Engineering Research Center for Technological Innovation Method and Tool， Hebei University of Technology， Tianjin 300400， China
2.School of Architecture and Art Design， Hebei University of Technology， Tianjin 300400， China |
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Abstract In the product conceptual design process, clearing design task and using the digital twin technology can better handle a large number of user data, monitor function operation, analyze target products, and promote the generation of design solutions. Firstly, the design task was taken as the entry point, user factors were introduced, task analysis method and scenario decomposition method were integrated to decompose the design task, and task flow models in the task domain was constructed. Secondly, the fuzzy comprehensive evaluation method was used to quantify the design task, clarify the design task, further decompose the design task, and the physical domain entity task scenario model was constructed. Based on the trend of task flow, interactive channels and virtual domain data types were analyzed to build the virtual domain task scenario model and complete the construction of digital twin model based on design task. Based on the direction of task flow, interactive channels and virtual domain data types were analyzed to build the virtual domain task scenario model and complete the construction of digital twin model based on design task. Finally, this method was applied to the construction of digital twinning model of intelligent classification trash can, which expanded the application of digital twinning in conceptual design. The design quality of product can be improved by integrating user factors into the design task during the conceptual design stage of products.
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Received: 21 April 2020
Published: 25 December 2020
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Corresponding Authors:
dingman@hebut.edu.cn，https://orcid.org/0000-0001-9296-2378
E-mail: dingman@hebut.edu.cn
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基于设计任务的概念设计中产品数字孪生模型的构建
在产品概念设计过程中，明确设计任务，应用数字孪生技术，可以更好地处理大量用户数据、监测功能运行和分析目标产品，促进设计方案的产生。首先，以设计任务为切入点，引入用户因素，集成任务分析法和情景分解法来分解设计任务，构建任务域任务流模型；其次，利用模糊综合评价法量化设计任务，明确设计任务，并对设计任务进行进一步分解，构建物理域实体任务情景模型；基于任务流的走向分析交互通道与虚拟域数据类型，构建虚拟域任务情景模型，完成基于设计任务的数字孪生模型的构建。最后，将这一方法应用于智能分类垃圾桶数字孪生模型的构建，拓展了数字孪生在概念设计中的应用。在产品概念设计阶段将用户因素融入设计任务中，可提高产品的设计质量。
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