审稿意见模板

论文审稿Ms. Ref. No.: JSV-D-06-01203

Title: Fault diagnosis research based on time-frequency analysis method in rotor systems

Journal of Sound and Vibration

Dear student ××××,

We have now received comments on your manuscript from the reviewers (reports included

below). Please revise your manuscript according to the referee's suggestions and detail all the

changes which you have made. I hope you will be prepared to undertake this, and I will then be

pleased to reconsider the manuscript for publication. Please note that due to the extensive

revisions necessay on your manuscript, it will need to be sent out for re-review.

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Yours sincerely,

Richard Berryman

Editorial Office (Australasia)

Journal of Sound and Vibration

Reviewers' comments:

Reviewer #1: Comments on JSV-D-06-01203

Title: Fault diagnosis research based on time-frequency method in rotor systems

By: ××, ××and ××××××

_______________________________________

The paper presents an application of reassigned wavelet scalogram for rotor system fault

diagnosis. It is a topic of interest to the researchers in the related areas but the paper needs

very significant improvement before acceptance for publication. My detailed comments are as

follows:

1. The wavelet method (reassigned wavelet scalogram) used in the paper works very well for

the underlying fault diagnosis problem. On the other hand, this wavelet method is a

well-established method, and the present research is a direct application of this method

without new contribution in methodological research.

2. For the above reason, the presentation should be focused on the results. Unfortunately, the

presentation is far from acceptable for publication. The material was not properly organized

and it is strongly suggested that the authors check carefully the English writing and use standard terminologies in the technical area.

3. The title of the paper should be more specific since numerous studies have been done on

the fault diagnosis of rotor systems using wavelets and time-frequency methods. Also, remove

the word "research".

4. On Section 1:

· This section listed many references that are mainly related to rotor dynamics and are not

directly related to rotor system diagnosis. If the authors would like to keep these references,

some discussions on the relevance of these refs to the present research are needed.

· Review on the directly relevant refs will be more helpful for the reader. Also, time-frequency

and wavelets are mainly for non-stationary and transient analysis. The author may discuss in

more detail what types of transients and non-stationary components would appear in rotor

system vibration.

· A few sentences on the organization of the paper will be helpful.

5. On Section 2:

· Since the major method used in the application is reassigned wavelet scalogram, it is not

needed to give the details of three other methods (only give a few words and give the refs).

Instead, the authors may discuss more on the relationship between traditional wavelet

scalogram and the reassigned wavelet scalogram, and explain why the latter is better than the

former.

· Eq (2): the right-hand-side is wrong and "2" is missed.

· The description after Eq (2) is not clear. See Cohen's book for details about the cross-terms.

6. On Sections 3 and 4:

The description needs to be improved. The material in Section 3 should be organized in

several paragraphs.

7. On Section 5:

· The authors did a good experiment and some of the phenomena presented in the

time-frequency planes are also very interesting. However, the observations should be