Mechanical Structure Design and Experimental Study of Gamma-ray Monitor for Small Satellite Payload

Round 1

Reviewer 1 Report

The paper deals with a novel mechanical structure of gamma-ray monitor is designed for a small satellite payload. Its structural stiffness, strength, and dynamic response are directly related to the performance of the novel gamma-ray monitor, which must meet the static and dynamic characteristics requirements of the structure in the harsh vibration environment., however, is necessary to clarify some processes used to perform this analysis. Also, some factual clarifications will be helpful as highlighted in the comments below. 

- In table 1, there is a column with deformed elements. Please describe it, why is used instead of improving the FE model?, and How this affects the results?

-In table 2, What are the units for “E”?

 -Please, include the PSD for the loads.

-In Figure 5, where is applied the load?

 -Please describe the load directions in Figure 4.

-If is possible, Please include the FRF graphs in addition to Figure 8. If not please discuss it.

-Please improve the figures 9-12.

-Please review the next papers and include it in your references.

- Diagnosis of interior damage with a convolutional neural network using simulation and measurement data, Structural Health Monitoring

https://doi.org/10.1177/14759217211056574

- Effects of synthetic data applied to artificial neural networks for fatigue life prediction in nodular cast iron, Journal of the Brazilian Society of Mechanical Sciences and Engineering volume 43, Article number: 10 (2021)

 

https://doi.org/10.1007/s40430-020-02747-y

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

An interesting study has been conducted on the mechanical structure design and experimental study of a gamma-ray monitor for small satellite payloads by the authors. The authors should, however, address the following points.

1. Data such as material properties are used by the authors (Table 2, 3, 5, etc.). References must be added to those tables. 

2. The authors claim that the new payload structure has large strctural stiffness and high strength. In order to justify their results, the authors should include stiffness data, strength (tensile, bending, shear, fatigue)  for their new design/structure.

 3. The image quality of fig. 9,10 and 11 is to be improved. 

4. According to the authors, the bonding connections are not cracked, but they did not consider pre-existing cracks/defects in their simulations.

5. The analysis and discussions need to be improved. The results must be compared with existing design/strctures. 

  

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

The requested changes have been done.