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Peer-Review Record

Power Flow and Efficiency Analysis of High-Speed Heavy Load Herringbone Planetary Transmission Using a Hypergraph-Based Method

Appl. Sci. 2020, 10(17), 5849; https://doi.org/10.3390/app10175849

by Yun Wang¹, Wei Yang^2,*, Xiaolin Tang², Xi Lin² and Zhonghua He¹

Reviewer 1: Anonymous

Reviewer 2: Anonymous

Reviewer 3: Anonymous

Appl. Sci. 2020, 10(17), 5849; https://doi.org/10.3390/app10175849

Submission received: 19 July 2020 / Revised: 18 August 2020 / Accepted: 19 August 2020 / Published: 24 August 2020

(This article belongs to the Section Mechanical Engineering)

Round 1

Reviewer 1 Report

see pdf document

Comments for author File: Comments.pdf

Author Response

Dear reviewer:

We are sincerely grateful for the insightful and constructive comments concerning our manuscript entitled “Power flow and efficiency analysis of high-speed heavy load herringbone planetary transmission using a hypergraph-based method”. Those comments are very valuable and helpful for us to revise our manuscript, as well as the important guiding significance to our researches. We have studied comments carefully and have made correction, which we hope meet with approval. In the following, we carefully present our response to the comments.

Author Response File: Author Response.docx

Reviewer 2 Report

Figure 1b - gears do not appear to be able to mesh - the opposite angle of individual gear should be present both on the large and small gear

Page 3 - "As shown in Figure1, the herringbone gear is comprised of two congruent helical gears rotating in opposite directions with left-handed teeth on one side, right-handed teeth on the other side, and a tool withdrawal groove in the middle." - This sentence implies that the two mirroring helical gears rotate in the opposite direction ?

Figure 3a - the Star gear does not seem to be drawn completely

Page 5 - Power loss due to friction of the roller bearing is ... How was the power loss factor determined, i.e. what is the source of this value?

Figure 6 cannot be seen

Figure 13 - perhaps enlarge the points with respect to the line width. Initial impression is of the continuous function rather then the 5 distinct values. Perhaps a column bar chart would be more appropriate

Equations 10, 11, 12 etc. are not clearly linked to their respective sources. This should be addressed with great care before the paper is published.

Author Response

Dear reviewer:

Author Response File: Author Response.docx

Reviewer 3 Report

The paper has a valuable insight about transmission system. However, the reviewer has some comments in order to improve the quality of the paper

1) On page 4 in subtitle "2.2.1 Hypergraph of single-stage planetary gear transmission" please check if letter ''n'' in word ''transmission'' was missed.

2) On page 4 in subtitle "2.2.2 Power loss mechanism of single-stage planetary transmission system" please check if the word ''system'' or any other words after that were missed.

3) On page 6, it seems the figure 6 is missed and a blank box can only be seen. Please make sure you will set the appropriate figure there.

4) On page 12, paragraph one, line six, it is written '' 4' represents the secondary sun gear'', however in figure 10 we can not see 4' and instead we see 4''. please make sure they are written correctly.

5) On page 13 equation 46, please make sure P4''4 is written correctly.

Author Response

Dear reviewer:

Question: On page 4 in subtitle "2.2.1 Hypergraph of single-stage planetary gear transmission" please check if letter ''n'' in word ''transmission'' was missed.