Abstract
Product development should cover product design, validation, and manufacturing. In traditional product development, physical validation based on physical trial manufacturing is the key step to confirm the design scheme before physical manufacturing. However, physical validation is costly and inefficient, which could be the main obstacle to achieving rapid product development. The emergence of digital twin provides an opportunity to accelerate product development by eliminating physical validation toward digital validation in the smart manufacturing era. Therefore, a framework of rapid product development based on digital twin is proposed in this paper. During product development, the new product is designed according to the new requirements in the virtual space, in which the existing digital twins of products can be referenced. Then, an ultrahigh-fidelity virtual manufacturing system is constructed for digital trial manufacturing based on the digital twin of the manufacturing system and the design scheme of the new product. An ultrahigh-fidelity digital prototype can be obtained from digital trial manufacturing for digital validation. The new product validation is executed on the digital prototype to test its performance. The digital validation results can be used to improve the design scheme of the new product and boost the corresponding manufacturing processes. In addition, the core characteristics and key technologies of rapid product development based on digital twin are discussed. Finally, a case study is presented to implement the proposed framework and to show the effectiveness of accelerating product development.
Highlights
Product development is described broadly as the transformation of a market opportunity into a product available for sale [1,2,3]
The digital trial manufacturing system is constructed based on the corresponding digital twin of the manufacturing system, which is joint optimization with process planning according to the design scheme of the new product
The digital trial manufacturing system is adapted from the ultrahigh-fidelity virtual manufacturing system according to the requirements of the new product, which maintains the fidelity of the ultrahigh-fidelity virtual manufacturing system as much as possible
Summary
Product development is described broadly as the transformation of a market opportunity into a product available for sale [1,2,3]. The possibility of product validation in the virtual space was explored through computer-aided engineering (CAE) [12], digital mock-up (DMU) [13, 14], and virtual manufacturing/prototype [15, 16]. These technologies can boost the product development process through rapid prototyping and validation in virtual space. The possibility of executing whole validation processes in the virtual space (white arrows in Fig. 1) should be investigated, in which the physical validation based on physical trial manufacturing can be eliminated to promote product development efficiency. A framework of rapid product development based on digital twin toward digital validation is proposed in this paper.
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