Digital twins
Digital twins are digital representations of physical products or systems that consist of multiple models from various domains describing them on multiple scales. By means of communication, digital twins change and evolve together with their physical counterparts throughout their lifecycle. Domain-specific partial models that make up the digital twin, such as the CAD model or the degradation model, are usually well known and provide accurate descriptions of certain parts of the physical asset. However, in complex systems, the value of integrating the partial models increases because it facilitates the study of their complex behaviours which only emerge from the interactions between various parts of the system. The paper proposes that the partial models of the digital twin share a common model space that integrates them through a definition of their interrelations and acts as a bridge between the digital twin and the physical asset. The approach is illustrated in a case of a mechatronic product - a differential drive mobile robot developed as a testbed for digital twin research. It is demonstrated how the integrated models add value to different stages of the lifecycle, allowing for evaluation of performance in the design stage and real-time reflection with the physical asset during its operation.
2018
2019-02-25 13:37:43
1033
digital twin, modelling, multi-domain model
digitalni dvojček, modeliranje, večdomenski model
dk_c
Rok
Vrabič
70
John
Erkoyuncu
70
Peter
Butala
70
Rajkumar
Roy
70
UDK
4
004.9(045)
ISSN pri članku
9
2351-9789
DOI
15
10.1016/j.promfg.2018.10.167
COBISS_ID
3
16492059
OceCobissID
13
16492315
RAZ_Vrabic_Rok_i2018.pdf
591649
Predstavitvena datoteka
2019-02-25 13:39:06
0
Izvorni URL
2019-02-25 14:30:40