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| Filter | Status | Condition | Details |
|---|---|---|---|
| HTTP status | PASS | download_http_code = 200 | HTTP 200 |
| Age cutoff | PASS | download_stamp > now() - 6 MONTH | 1.2 months ago |
| History drop | PASS | isNull(history_drop_reason) | No drop reason |
| Spam/ban | PASS | fh_dont_index != 1 AND ml_spam_score = 0 | ml_spam_score=0 |
| Canonical | PASS | meta_canonical IS NULL OR = '' OR = src_unparsed | Not set |
| Property | Value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| URL | https://www.mdpi.com/2075-4442/14/3/132 | |||||||||
| Last Crawled | 2026-04-27 15:20:39 (1 month ago) | |||||||||
| First Indexed | 2026-03-18 19:37:45 (2 months ago) | |||||||||
| HTTP Status Code | 200 | |||||||||
| Content | ||||||||||
| Meta Title | Investigation on Rolling Seals for Deep-Sea Applications | |||||||||
| Meta Description | The rolling seal is a pivotal sealing technology for marine equipment such as wet-mateable connectors, ensuring operational integrity in deep-sea environments during both static and mating phases. However, its working mechanisms remain inadequately understood, and the effects of sealing parameters and seawater pressure have yet to be systematically studied. To address these issues, a refined model for rolling seals operating in deep-sea pressure-balanced conditions was developed. The model’s accuracy was enhanced by incorporating two key inputs: experimentally measured boundary lubrication friction coefficients (replacing conventional dry friction values) for finite element simulation and torque calculation, and oil pressure under pressure-balanced conditions, derived from shell theory, as a boundary load. Through systematic parametric simulations, the effects of interference fit, rotational speed, and seawater pressure on sealing performance were elucidated. An experimental torque test setup under atmospheric pressure was constructed to validate the numerical model. The results indicate that, while ensuring reliable static sealing, higher rotational speeds and smaller interference fits help reduce rotational torque. Benefiting from the pressure-balanced design, increasing water depth significantly enhances hydrodynamic performance—accounting for over 90% of the total static contact pressure at 1500 m—while leakage shows a decreasing trend. These findings provide theoretical insights for optimizing deep-sea sealing structures. | |||||||||
| Meta Canonical | null | |||||||||
| Boilerpipe Text | heavy column, fetched on demand | |||||||||
| Markdown | heavy column, fetched on demand | |||||||||
| Readable Markdown | heavy column, fetched on demand | |||||||||
| ML Classification | ||||||||||
| ML Categories |
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| Content Metadata | ||||||||||
| Language | en | |||||||||
| Author | null | |||||||||
| Publish Time | not set | |||||||||
| Original Publish Time | 2026-03-18 19:37:45 (2 months ago) | |||||||||
| Republished | No | |||||||||
| Word Count (Total) | 15,665 | |||||||||
| Word Count (Content) | 9,811 | |||||||||
| Links | ||||||||||
| External Links | 129 | |||||||||
| Internal Links | 92 | |||||||||
| Technical SEO | ||||||||||
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| Meta Noarchive | No | |||||||||
| JS Rendered | Yes | |||||||||
| Redirect Target | null | |||||||||
| Performance | ||||||||||
| Download Time (ms) | 874 | |||||||||
| TTFB (ms) | 839 | |||||||||
| Download Size (bytes) | 85,385 | |||||||||
| Location | ||||||||||
| Host ID | 31 (laksa031) | |||||||||
| Partition ID | 55 | |||||||||
| Root Hash | 11974975279136771031 | |||||||||
| Unparsed URL | com,mdpi!www,/2075-4442/14/3/132 s443 | |||||||||