Study of the Mechanical Properties of Near-Space Airship Envelope Material Based on an Optimization Method
Abstract
:1. Introduction
2. Methodology
2.1. Optimization Calculation Model
2.2. Optimization Algorithm Method
3. Experiments
3.1. Experimental Material and Equipment
3.2. Test Procedure
4. Results and Discussions
4.1. Analysis of Experimental Data
4.2. Analysis of Optimization Results
4.3. Validation
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Stress Ratio (Warp:Weft) | Warp Slope (102 kN/m) | Weft Slope (102 kN/m) |
---|---|---|
1:1 | 13.77∼16.38 | 13.24∼16.64 |
2:1 | 11.40∼18.20 | 18.86∼14.03 |
1:2 | 24.72∼14.01 | 11.88∼17.06 |
Poisson’s Ratio | |||
---|---|---|---|
EX | |||
12.98 | 13.35 | 0.1903 | 0.1957 |
𝜆0 | 𝜆1 | 𝜆2 | 𝜆3 | 𝜆4 | 𝜆5 |
---|---|---|---|---|---|
1715.832 | −109.514 | −0.27352 | 5.279409 | 0.536042 | 0.127741 |
𝜅0 | 𝜅1 | 𝜅2 | 𝜅3 | 𝜅4 | 𝜅5 |
1429.07 | −0.01938 | −43.7049 | 0.142972 | 1.823383 | 0.136431 |
𝜂0 | 𝜂1 | 𝜂2 | 𝜂3 | 𝜂4 | 𝜂5 |
0.40475 | 0.02569 | −0.02771 | −0.00098 | 0.001955 | −0.00193 |
Stress Ratio (Warp:Weft) | E (102 kN/m) | 𝜈 | R-Squared | |||
---|---|---|---|---|---|---|
Warp | Weft | Warp | Weft | Warp | Weft | |
1:1, 1:2, 2:1 | 12.26∼15.81 | 12.41∼14.16 | 0.216∼0.436 | 0.200∼0.458 | 0.975 | 0.970 |
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Tang, J.; Xie, W.; Wang, X.; Chen, Y.; Wu, J. Study of the Mechanical Properties of Near-Space Airship Envelope Material Based on an Optimization Method. Aerospace 2022, 9, 655. https://doi.org/10.3390/aerospace9110655
Tang J, Xie W, Wang X, Chen Y, Wu J. Study of the Mechanical Properties of Near-Space Airship Envelope Material Based on an Optimization Method. Aerospace. 2022; 9(11):655. https://doi.org/10.3390/aerospace9110655
Chicago/Turabian StyleTang, Jiwei, Weicheng Xie, Xiaoliang Wang, Yonglin Chen, and Junjie Wu. 2022. "Study of the Mechanical Properties of Near-Space Airship Envelope Material Based on an Optimization Method" Aerospace 9, no. 11: 655. https://doi.org/10.3390/aerospace9110655