Test Method for Surface and Underwater Condition of Deep-sea Special Pressure Structure

CHEN Shagu; GAO Yuan; WU Zhirui; WANG Kun; ZHOU Cheng

doi:10.11993/j.issn.2096-3920.2024-0153

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Article Navigation > Journal of Unmanned Undersea Systems > 2025 > Accepted Manuscript

CHEN Shagu, GAO Yuan, WU Zhirui, WANG Kun, ZHOU Cheng. Test Method for Surface and Underwater Condition of Deep-sea Special Pressure Structure[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0153

Citation:

CHEN Shagu, GAO Yuan, WU Zhirui, WANG Kun, ZHOU Cheng. Test Method for Surface and Underwater Condition of Deep-sea Special Pressure Structure[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0153

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Test Method for Surface and Underwater Condition of Deep-sea Special Pressure Structure

doi: 10.11993/j.issn.2096-3920.2024-0153

China Ship Scientific Research Center, National Key Laboratory of Ship Structural Safety, Wuxi 214082, China

Received Date: 2024-11-08
Accepted Date: 2025-02-08
Rev Recd Date: 2025-01-01

Available Online: 2025-03-11

Abstract

Abstract

The head cover is a special pressure structure for deep-sea unmanned systems, which needs to balance long-term underwater pressure and rapid separation function on the water surface. In order to study the stress characteristics and separation performance of deep-sea special pressure structure under surface and underwater condition, full-scale model of the head cover was developed for hydraulic and separation testing. Firstly, based on the existing deep-sea environment simulation test system, a test method is proposed to simulate the deep seawater pressure environment using a cabin device with skin balloons in response to the long-term seawater pressure environment testing requirements faced by the head cover during underwater. Furthermore, a safe and reliable inclined flange connection structure model rapid separation test system was established to meet the separation test requirements of head cover when in the water surface state. The results of the full-scale model test showed that the special pressure structure surface and underwater condition test method is reasonable and feasible. It can not only be used for pressure test and separation test research of the head cover, but also provide some reference for the design and testing of similar pressure structures in other deep-sea equipment.
- head cover,
- special pressure structure,
- full-scale model,
- pressure test,
- separation test

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References(21)

References

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