| Autor: |
WU Zheng, GUO Yuanyuan |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Kongzhi Yu Xinxi Jishu, Iss 6, Pp 79-85 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2096-5427 |
| DOI: |
10.13889/j.issn.2096-5427.2023.06.012 |
| Popis: |
To satisfy the lightweight requirement for high-strength pods in the field of deep-sea commercial development, this paper proposes a design combining a carbon fiber composite material cylinder and metal end caps for deep-sea ROV pods. Based on the classical laminate theory, a simplified method for designing the pressure-bearing structural wall thickness dimensions of the pod is presented. This design method simplifies the stress distribution inside the metal end cap and the theoretical model of the carbon fiber composite material stack, which can quickly provide recommended design values. The weight of the carbon fiber pod under the recommended values has significant advantages compared to aluminum alloy pods and titanium alloy pods, being 70% lighter than aluminum alloy pods and 20% lighter than titanium alloy pods. The 4th-strength theory and the traditional laminate theory are used to check the design strength of the pod provided by this method layer by layer. The results show that the safety factor of the metal end cap is 0.866, and the safety factors of the 3000 m and 6000 m levels of the composite material cylinder designs reach 0.56 and 0.66 respectively, all of which are less than 1. Finite element calculations are also used to check the design strength of the pod. The results indicate that the stress limits of the aluminum/titanium alloy end cap and the carbon fiber cylinder in the 3000 m- and 6000 m-deep environments do not exceed the allowable limits of the corresponding materials, verifying the accuracy of the design method. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
