Towards the Development of an Operational Digital Twin
, Mattia Dal Borgo 2, Valentina Ruffini 3, Aidan J. Hughes 1, Yichen Zhu 1 and David J. Wagg 1
Manolis Chatzis
Round 1
Reviewer 1 Report
See attached file
Comments for author File: 
Comments.pdf
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 2 Report
This is a excellent paper. The issue of what to do with models when the physical twin exhibits non linearity is a very real problem. The options proposed by the authors and then explored by testing is a real contribution. The options of recalibrate, update, better physics is a very interesting discussion. In the absence of the causation option (better physics), getting better model correlation is a decent option. It tracks with what I’ve proposed in my work.
My one nit is this sentence doesn’t make sense:
The problems associated with only every considering model updating as a ‘learning' strategy are discussed in Section 3,
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The Authors have clearly and elaborately addressed all the points made by this Reviewer. The Reviewer appreciates the time spent by the Authors to address all the points made in their review. In its revised form the paper should be accepted as is.
