Modelling and Simulating the Digital Measuring Twin Based on CMM

Round 1

Reviewer 1 Report

The paper is interesting and enters into the scope of “Modelling”. It discusses the use of a virtual representation for the sake of the inspection of mechanical parts during the final stage of quality control.

 

However the manuscript lacks of the appropriate quality and should go for a major revision before its publication.

 

The English is very poor and should be improved. As some examples:

 

In order to perform the inspection planning process on the coordinate measuring  machine (CMM), it is necessary to modelling the measuring system with workpiece, CMM and fixture, then perform the metrological analysis of the workpiece and create a measurement program for simulation on a virtual measuring machine in CAD environment. In this paper, a 1 virtual measuring system based on a real CMM is modelled and simulated in the PTC Creo software. DMIS (*.ncl) file was generated as output by programming the measuring path and simulation of the virtual CMM for standard modelled types of tolerance. The analysis of the 15 metrology of the measuring part, for the given forms of tolerance (location, perpendicularity, 16 flatness, etc.) was performed. The components of the CMM and the assembly with defined kinematic connections are modeled also. After simulation and generation of the output DMIS file in 18 PTC Creo using virtual CMM, the real CMM was programmed and measured on it. After the measurement, the measurement report is generated. The main result of this paper is modelling an off-line digital measuring twin (DMT) based on DMIS file.

 

  “it is necessary to modelling the measuring” 

 

After the measurement, the measurement report is generated.

 

are modeled  -> see that the journal is “Modelling”

 

with workpiece -> the workpiece, or either workpieces

 

Be careful along the manuscript with the use of articles.

 

“Digital inspection twin (DIT) acting as a mirror between the physical and virtual measuring world. Virtual measurement system is developed for the inspection of the standard types of tolerances (concentricity, perpendicularity i.e.)” [1] -> 

 

starting with a quote doesn't seem appropriate. 

 

The organization of the introduction should be improved and expanded.

 

While the references proposed are fine, the extensive use of quotations should be avoided. The points relevant to the article should be extracted and accompanied by references, but a citation of complete paragraphs makes no sense.

 

The list of sections organizes the article, but the article is organized in Sections, so the use of chapters should be avoided.

 

Along the manuscript, the information should be presented in a more organized way. As an example the following paragraph;

 

Below are specific examples or issues that may arise during the modelling of the measuring system and later affect the accuracy and representativeness of the virtual measuring system. If the probe used for measurement is not accurately modeled, the simulation results may be inaccurate.

 

• Inaccurate measurement parameters: The virtual measuring system must be configured with precise measurement parameters, such as measurement speed, approach speed, safety distances, etc. If these parameters are not accurately defined, the simulation results may not reflect the measurement process, both in inspection planning and real inspection. 

 

• Incorrect measurement methodology: The virtual measuring system must be set up with the correct measurement methodology, including the sequence of measurements and the direction in which the probe moves. 

 

It is better organized if enumeration,  items or/and paragraphs are used.

 

Some of the claims, for instance, that tolerance analysis is an important aspect of creating an accurate virtual representation of the measuring system need to be supported by the proper reference.

 

DMIS (add reference or references)

 

Figure 4: could it be the center?

 

Does Figure 9 add any information to the discussion?

 

And finally, the critical question, in my opinion, is how does the simulation compares with reality. A discussion on this should be added to the manuscript.

 

 

As commented above, the English should be improved.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

in an extended file

Comments for author File: Comments.pdf

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

See the attached file.

Comments for author File: Comments.pdf

See the attached file. 

Author Response

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Author Response File: Author Response.pdf

Reviewer 4 Report

Comments to Marjanovic et al

 

 

 

Summary

The study describes a procedure for implementing a virtual representation of a coordinate measuring machine, the purpose of which is to in advance on a virtual twin verify the usefulness and practicality of intended measurement paths on the real-world measuring device. In particular, the manuscript deals with the communication between virtual and real-word systems through the Dimensional Measurement Interface Standard.

General comments

The topic of the study, albeit a bit specialized, should still be viable for the Modelling journal. Furthermore, there is no doubt regarding the importance of the concept of using virtual twins in metrology now or in the future. As for the sectional structure of the manuscript, it does not follow a conventional IMRAD format, but the sections align, in a logical way, according to aspects of the simulation of the virtual twin. When it comes to the introduction section, the authors mention, oftentimes with a quote, the studies of other researchers, but on a rather abstract level that makes it difficult for a reader not very familiar with the topic to evaluate in what way the study at hand contributes with new findings. The authors should give their own summary of previous research and subsequently inform the readers what the study at hand adds to that. In the Introduction and Conclusions sections the authors state they have a new approach, but they should point out more explicitly, for example in the form of a list, what is new in their approach.

Moreover, the English language in the manuscript is fine from a grammatical point of view, but the text could be more straightforward; in a scientific text getting the message through is more important than eloquence. Likewise, the figures of the manuscript are visually appealing but not always very informative. Perhaps some schematic figures and flow charts would explain more efficiently what the study has achieved.

Specific comments

Line 9: …necessary to model…

Lines 35-36: same as previous point.

Line 98: The section referred to seems to be the sixth one. Moreover, the phrasing is unnecessary complicated. The sixth section addresses the essence…

Line 169: Incoherent subsection number. The number of the parent section is 2.

Comments for author File: Comments.pdf

English language at a reasonably good level. No serious errors detected. The text could however be more transparent and straightforward.

Author Response

Please see attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 4 Report

The authors have in the revision added sufficient clarifying details to the storyline and in addition made minor requested modifications. In view of this I have no further complaints.