Magnetic Field Analysis and Optimization of the Gauge of Hybrid Maglev Needles

Round 1

Reviewer 1 Report

This manuscript, Magnetic field analysis and optimization of the gauge of hybrid maglev needles (applsci-2056747), has been carefully reviewed. The ideas presented in this paper are interesting and are relevant to the scope of Applied Sciences. I think this paper contributes to the existing research literature on the design of hybrid maglev weft knitting machine for textile industry. The paper is generally well presented and organized. Some of my comments are:

1a.  In line 9 of Abstract, “heat and” should be “heat, and”.

1b.  In line 18 of Abstract, “1mm” should be “1 mm”. Please check whole paper to write this kind of expression consistently.

2.   In line 25 of page 1, suggest deleting “kind of”.

3.   In line 30 of page 1, after “lubrication”, delete “of the equipment”.

4.   In line 35 of page 1, “noise and” should be “noise, and”.

5a. In line 38 of page 1, suggest changing “so” to “therefore”.

5b. In line 71 of page 1, “realized. [5]” should be “realized[5]”. Please check whole paper to write this kind of expression consistently.

6a. In line 94 of page 3, suggest changing “Eq. (5):” to “Eq. (5), it presents:”.

6b. Check the space, gramma, and punctuation in line 95 through 99 of page 3.

7.   In line 109 of page 4, it is a fragment.

8.   In line 111 of page 4, “show” should be “is shown”.

9.   In line 123 of page 5, suggest changing “Large” to “Clearly, large”.

10. In line 127 of page 5, suggest changing “needles” to “needles should be used”.

11. In line 137 of page 5, suggest changing “As shown in” to “It is seen”.

12. In line 140 of page 5, “Where” should be “where”.

13. In line 193 of page 8, “Figure 7(a)(b)” should be “Figure 7(a) and Figure 7(b)”.

14. In line 198 of page 9, “Figure 7(c) After” should be “Figure 7(c) shows that after”.

My suggestion is that the paper be accepted for publication after minor revision. After revision, it is no need to be reevaluated.

Author Response

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Author Response File: Author Response.docx

Reviewer 2 Report

Dear Authors,

You presented very good manuscript in which you treated the driving process of the hybrid magnetic levitation needle. You analyzed the magnetic disturbance phenomena when permanent magnets of the same magnetizing direction are arranged in an array. You calculated the magnetic inductance and the magnetic force, and you give your results graphically. To improve your manuscript, I suggest you give also these results tabularly. I hope it will not be the difficult work for you.

 

 

Author Response

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Reviewer 3 Report

This paper investigates the application of hybrid magnetic levitation needle in weft knitting machine technology. Magnetic disturbance between the adjacent needles and permeanent magnetic will cause instability of the needle control and therefore, silicon steel sheet has been used for isolation. Here are several comments:

1. MY honest impression is that this is a technique problem more than a science one. Authors need to first clear present the potential application of this technique. I am not an espert in knitting machine, I can not understand the explanations that the new magnetic needle can get rid of the problems like noise, heat and needle breaking. If the needle should move, there is certainly mechanical noise. 

2. How to drive the needles? Magnetic shielding using high permeability metals has been extensively in various techniques. The only problem is that if you need to drive the needle, you have to apply stimuli to the transmitor. If you shield the transmitor, you can not drive it. So I am not clear, we need to drive the permeament magnetic or we should directly drive the needles. 

3. The figures are very confusing. I tried my best to understand the design of the machine, but failed. Fig.1 for example, the two parts are the same one with different resolutions or they are totally different. More detailed information should be provided in both pictures and captions. 

4. Writing needs a lot of improvement.

 

Author Response

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Author Response File: Author Response.docx

Round 2

Reviewer 3 Report

I do not see enough improvement in the figure illustration. The most important issue is that, if you put silicon steel sheets around permenant magnet, there will be strong interaction. Just like you put needles around a magnet. It would be very difficult for the relative movement between these parts due to strong magnetic force. 

This paper only shows that the steel sheet can shield the magnetic flux. Doest the machine can still work after introducing the shield part? 

I want to repeat it again. There is no science problems here. So just prove that this design is practicle. If you can not at least prove the practicability, I could not recommend it for publication.

 

 

 

Author Response

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Author Response File: Author Response.docx