Development of electromagnetic drop weight release mechanism for human occupied vehicle
Abstract In a human-occupied vehicle (HOV), the drop weight mechanism is used to adjust the ascent/descent motion. In this paper, a new innovation has been developed through the effective integration of a permanent magnet and an electromagnet. The main advantage of this Electromagnetic Drop Weight M...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87816-9 |
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| author | Sathia Narayanan Dharmaraj Karthikeyan Shanmugam Jothi Chithiravel Ramesh Sethuraman |
| author_facet | Sathia Narayanan Dharmaraj Karthikeyan Shanmugam Jothi Chithiravel Ramesh Sethuraman |
| author_sort | Sathia Narayanan Dharmaraj |
| collection | DOAJ |
| description | Abstract In a human-occupied vehicle (HOV), the drop weight mechanism is used to adjust the ascent/descent motion. In this paper, a new innovation has been developed through the effective integration of a permanent magnet and an electromagnet. The main advantage of this Electromagnetic Drop Weight Mechanism (EMDW) is that it requires power to be supplied at the time of drop weight (25 kg) cut off. From Response surface methodology (RSM) using desirability approach, the design criteria for EMDW System required to drop a 25 kg weight is the combination of 20 A, 18 NOT, 106 mm coil length and 24 V DC. The difference between numerical and experimental analysis was around 7.32%. The mean effect plot analysis shows that current and number of turns of coils were found to be predominant factor in designing of EMDW. To quantify the system for working in the sea, a hyperbaric chamber test at 50 bar was carried out and the system is found to be effectively working. |
| format | Article |
| id | doaj-art-d2552d0e44614cd4b85a93f2bb2b75b2 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-d2552d0e44614cd4b85a93f2bb2b75b22025-08-24T11:27:51ZengNature PortfolioScientific Reports2045-23222025-08-0115111110.1038/s41598-025-87816-9Development of electromagnetic drop weight release mechanism for human occupied vehicleSathia Narayanan Dharmaraj0Karthikeyan Shanmugam1Jothi Chithiravel2Ramesh Sethuraman3Deep Sea Technologies, National Institute of Ocean TechnologyDeep Sea Technologies, National Institute of Ocean TechnologyDeep Sea Technologies, National Institute of Ocean TechnologyDeep Sea Technologies, National Institute of Ocean TechnologyAbstract In a human-occupied vehicle (HOV), the drop weight mechanism is used to adjust the ascent/descent motion. In this paper, a new innovation has been developed through the effective integration of a permanent magnet and an electromagnet. The main advantage of this Electromagnetic Drop Weight Mechanism (EMDW) is that it requires power to be supplied at the time of drop weight (25 kg) cut off. From Response surface methodology (RSM) using desirability approach, the design criteria for EMDW System required to drop a 25 kg weight is the combination of 20 A, 18 NOT, 106 mm coil length and 24 V DC. The difference between numerical and experimental analysis was around 7.32%. The mean effect plot analysis shows that current and number of turns of coils were found to be predominant factor in designing of EMDW. To quantify the system for working in the sea, a hyperbaric chamber test at 50 bar was carried out and the system is found to be effectively working.https://doi.org/10.1038/s41598-025-87816-9Drop weight mechanismManned submersibleElectromagnetFinite element analysis |
| spellingShingle | Sathia Narayanan Dharmaraj Karthikeyan Shanmugam Jothi Chithiravel Ramesh Sethuraman Development of electromagnetic drop weight release mechanism for human occupied vehicle Scientific Reports Drop weight mechanism Manned submersible Electromagnet Finite element analysis |
| title | Development of electromagnetic drop weight release mechanism for human occupied vehicle |
| title_full | Development of electromagnetic drop weight release mechanism for human occupied vehicle |
| title_fullStr | Development of electromagnetic drop weight release mechanism for human occupied vehicle |
| title_full_unstemmed | Development of electromagnetic drop weight release mechanism for human occupied vehicle |
| title_short | Development of electromagnetic drop weight release mechanism for human occupied vehicle |
| title_sort | development of electromagnetic drop weight release mechanism for human occupied vehicle |
| topic | Drop weight mechanism Manned submersible Electromagnet Finite element analysis |
| url | https://doi.org/10.1038/s41598-025-87816-9 |
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