Next Article in Journal
Note on the Equivalence of Special Norms on the Lebesgue Space
Next Article in Special Issue
An Analytic and Numerical Investigation of a Differential Game
Previous Article in Journal
Radu–Miheţ Method for the Existence, Uniqueness, and Approximation of the ψ-Hilfer Fractional Equations by Matrix-Valued Fuzzy Controllers
Previous Article in Special Issue
A Weak Turnpike Property for Perturbed Dynamical Systems with a Lyapunov Function
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Axioms
Volume 10
Issue 2
10.3390/axioms10020062
Review Report
axioms-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
Article
Peer-Review Record

Nonlinear Control System Design of an Underactuated Robot Based on Operator Theory and Isomorphism Scheme

Axioms 2021, 10(2), 62; https://doi.org/10.3390/axioms10020062
by Mingcong Deng * and Shotaro Kubota
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Reviewer 3: Anonymous
Axioms 2021, 10(2), 62; https://doi.org/10.3390/axioms10020062
Submission received: 27 February 2021 / Revised: 11 April 2021 / Accepted: 15 April 2021 / Published: 16 April 2021
(This article belongs to the Special Issue Advances in Analysis and Control of Systems with Uncertainties)

Round 1

Reviewer 1 Report

There are several minor issues to be taken care of. The details can be found in the referee report.

Comments for author File: Comments.pdf

Author Response

Thanks.

Author Response File: Author Response.docx

Reviewer 2 Report

Please see the attached file. I hope that my comments and suggestions help you to improve the paper.

Comments for author File: Comments.pdf

Author Response

Thanks.

Author Response File: Author Response.docx

Reviewer 3 Report

Dear authors, the subject of research in the submitted article is acrobot. This is a well-known example of an underactuated system. The proposition of a method of design a control system based on operator theory and an isomorphism scheme is the main aim of the submitted paper. The presented method is interesting, but the article itself requires significant corrections .

 

First of all, the introduction should be more elaborate. There is no objective literature review. The bibliography contains only 15 items, the vast majority of which are the authors' own works. There is no way to show how other researchers approach this issue. General information about the control of the class of underactuated mechanical systems may be also provided. 

The conclusions are also not convincing. The results obtained are not better than the acrobot control systems developed by other research teams. The stabilization time is quite long. Justify why the presented method should be worth implementing. 

 

Also, please verify the notations in equations 15 and 20. There, the parameter Kd is multiplied by the generalized variable q2. The diagram in Figure 5 shows that this is the standard concept of a feedback loop, so the parameter Kd should be multiplied by the error derivative (q-qd). If not, please explain it in detail.

In my opinion, the article cannot be published in this version. 

 

Author Response

Thanks.

Author Response File: Author Response.docx

Round 2

Reviewer 2 Report

Thank You to consider all of my comments and suggestions. At this time, I think that the paper is ready to be accepted in present form.
Best regards

Reviewer 3 Report

Thank you for the answers. I think the article can be published in this form.

Back to TopTop