Design Method of Cam Steering Mechanism Based on Path Fitting
Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsComments and suggestion to the authors
1. There are various phonetic mistakes throughout the manuscript.
2. In lines 11 and 12, the phrase "driving mechanism" is repeated in a sentence.
3. The style of paragraph 2 in the introduction section, starting from line 52, is different from the rest.
4. In line 69, remove the space between "high-efficiency" and "fast-moving" before the hyphen, and also eliminate similar mistakes.
5. In line 79, use "Adams" with capital letters.
6. In line 118, "The transmission structure is shown in Figure 1." should be continued from the upper paragraph.
7. In line 134, clarify the sentence: "Both wheels are driving wheels."
8. The authors designed a vehicle with 3 wheels; one wheel is placed at the front and the remaining wheels are at the back. The front wheel steers the direction of the vehicle. One of the two wheels placed at the back is a driving wheel, and the other is idle. The authors need to clarify how the vehicle moves in a straight line. It also affects the steering of the vehicle because the RPM of both wheels is different, so it always turns the vehicle towards the idle wheel.
9. Do not use different paragraphs to denote the figures and table in the write-up part of the manuscript.
10. Please mention the equation number in the write-up part for clarity.
11. In Figure 4, include the checkpoints more clearly as they are not visible.
12. In line 198, please mention the figure number. There is no driven wheel labeled in Figure 5; did the author mean "engaged wheel"?
13. In various places, the author writes different names for the engaged wheel. Please avoid such mistakes.
14. In Table 2, the width of the rear wheel is 197mm. Is the front and rear wheel distance 200mm axial or what?
15. In Figure 8, the labeling is intersecting with the graph, so please use elbow arrows.
16. In Figure 9, avoid overlapping of the labeling.
17. In Figure 13, what do "X" and "F" represent?
18. In Figures 14 and 15, both figures are described by the same notations. Avoid such mistakes. Use "force" instead of "F."
19. Specify the boundary conditions to be used for analyzing the stress generated in the cam.
20. In Figure 16, label it as "Figure 16 (b)."
21. The author needs to add the error difference or percentage between the experimental and simulation results.
22. In lines 391 and 392, "Figure 16" is referred to as "FIG 16." Please make it "Figure 16."
23. Proofreading is needed for this manuscript.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Comments and Suggestions for AuthorsThe paper is well written and it needs some modifications. The idea of this paper is good while there are some defects in the paper. I recommend this paper pending major revision. My comments are in below:
(1) The paper needs nomenclatures.
(2) In the cam design profile shown in figure 9, there are two noses at 120 and 180 degrees. The dynamic motion is non-smooth and the point displacement with time has rising and falling strokes. The motion is chaos at these positions.
(3) The author should design a path with smooth motion even if there are high contact and impact at high speeds.
(4) Regarding the finite element simulation I did not see such a thing. Where is the steps of finite element using ANSYS software? Where is the convergence test of mesh generation?
(5) The author in figures 14 and 15 should check discuss for the detachments when the contact force is zero and in high level.
(6) The cam should be mounted on the rotor shaft. The cam body at the center should be manufactured in the form of key and groove. I did not see this in the numerical simulation figure 16. The maximum displacement should appear at the center and on the tip noses because of the high contact pressure between the cam and roller. Please explain.
(7) We cannot tell if this design is good until the chaos motion is gone at high speeds of the cam.
(8) I did not see that the author test his paper at different speeds for the cam.
(9) Please check for the self-citation.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
Comments and Suggestions for AuthorsThe paper now is acceptable.
