A Comparative Study on the Modelling of Soybean Particles Based on the Discrete Element Method
, Jianqun Yu 1, Liusuo Liang 1, Yang Wang 1, Yajun Yu 1, Long Zhou 1, Kai Sun 1 and Ping Liang 2,*Round 1
Reviewer 1 Report
1) Two simulation softwares, EDEM and DEMSlab, are named in the text without references. They should be added.
2) How the moisture contents of soybean particles are taken into account in simulations? How the moisture has been determined?
3) In lines 188 and 189 is written "material are same as Xu's simulations" without reference. Put the reference.
4) In line 189 is written "The coefficients of rolling friction are determined by means of calibration." How this calibration was performed?
5) Why the error band of the test results on Fig. 18-(a) is wider than in the case (b) or (c)?
6) In line 260 should be written "6.86 deg, 1.49 deg.,".
7) In line 287 is written abbreviation "HM", but there is no explanation of it. Is this abbreviation for the Hertz-Mindlin contact model?
8) What is the difference between the "HM model" and the "HM-new model"?
Author Response
Please see the attachment
Author Response File: 
Author Response.pdf
Reviewer 2 Report
From my point of view, the paper presents some preliminary results that are hardly appropriate to publish in the form of a separate article. For the purposes of some modeling, the authors propose to replace the soy particle with a combination of 5 or 13 balls (see section 2). Then, section 3 discusses how such a replacement is adequate by comparing it with some "other approaches". Indeed, to apply numerical analysis to the study of a collection of irregularly shaped mechanical particles, it is useful to have a good simple description of some typical particle. However, this is a minor, purely auxiliary task that specialists in numerical analysis have to repeatedly solve for a particular situation. At the same time, in this paper, in addition to quite obvious recipes for the representation of a single particle, there are no meaningful results on modeling the entire set of particles. Although the authors mention the Discrete Element Method in the introduction, keywords, and annotation, the article does not contain any results obtained with its use. Unfortunately, I can't recommend such a work for publication.
Author Response
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Author Response File: Author Response.pdf
Reviewer 3 Report
The paper is interesting and shows a good correlation between simulation and experiment for a relatively simple system.
The paper needs some work to improve it as discussed in the uploaded file.
Comments for author File: Comments.pdf
Author Response
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Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
The authors provided sufficient explanations. I believe that the article can be published provided that it corresponds to the mainstream of the journal
