Construction and testing of slam shock absorbers for small high speed craft
Also available in printed version
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| Format: | Bachelor thesis |
| Language: | English |
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Universiti Teknologi Malaysia
2025
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| Online Access: | https://utmik.utm.my/handle/123456789/52987 |
| Abstract | Abstract here |
| _version_ | 1854934129247780864 |
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| author | Nur Masitoh Islamiah Mustaffa Kamal |
| author2 | Omar Yaakob, supervisor |
| author_facet | Omar Yaakob, supervisor Nur Masitoh Islamiah Mustaffa Kamal |
| author_sort | Nur Masitoh Islamiah Mustaffa Kamal |
| description | Also available in printed version |
| format | Bachelor thesis |
| id | utm-123456789-52987 |
| institution | Universiti Teknologi Malaysia |
| language | English |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-529872025-08-21T04:49:54Z Construction and testing of slam shock absorbers for small high speed craft Nur Masitoh Islamiah Mustaffa Kamal Omar Yaakob, supervisor Mechanical engineering Also available in printed version Slamming impact is the phenomena when the bow of a vessel enter the sea wave at high speed repeatedly due to heave and pitch motions. The slamming phenomena will cause the passengers to feel discomfort. Numerous studies suggested installing a seat suspension system for the small high-speed craft as the method to reduce slamming impact. However, this study focused on proposing the most cost-effective solution for the suspension design. In this study, a seat suspension system design namely slam shock absorber device (SSA-device) has been improvised and constructed in model scale. Then, motion analysis was carried out by using Maxsurf Motion Advanced to determine the relative vertical motion for drop height references. Two series of drop test were carried out to compare the seat effectiveness with/without SSA-device. Newton 2nd Law and Hooke’s Law is applied to calculate the maximum impact force and suitable spring stiffness for the model and full scale of the device. This study found that the SSA-device is suitable to be implemented as it reduces slamming impact acceleration with the average impact acceleration reduction of 28.8 %. The Dynamic Response Index, DRI shows the seat with SSA-device is more effective compared to the seat without the device. At the end of the study, a cost estimation and seat design for installation of the SSA-device to tourist boat in Malaysia in determined. The total cost estimated for the materials needed is RM 329.00. This new suspension system is expected to improve tourist boat passenger comfort and contribute to the industry zulaihi UTM 75 p. Project Paper (Sarjana Muda Kejuruteraan (Senibina Kapal dan Kejuruteraan Luar Pantai)) - Universiti Teknologi Malaysia, 2017 2025-03-17T01:35:01Z 2025-03-17T01:35:01Z 2017 Bachelor thesis https://utmik.utm.my/handle/123456789/52987 vital:112172 valet-20180704-143112 ENG Closed Access UTM Complete Unpublished Completion application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Mechanical engineering Nur Masitoh Islamiah Mustaffa Kamal Construction and testing of slam shock absorbers for small high speed craft |
| thesis_level |
Other
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| title | Construction and testing of slam shock absorbers for small high speed craft |
| title_full | Construction and testing of slam shock absorbers for small high speed craft |
| title_fullStr | Construction and testing of slam shock absorbers for small high speed craft |
| title_full_unstemmed | Construction and testing of slam shock absorbers for small high speed craft |
| title_short | Construction and testing of slam shock absorbers for small high speed craft |
| title_sort | construction and testing of slam shock absorbers for small high speed craft |
| topic | Mechanical engineering |
| url | https://utmik.utm.my/handle/123456789/52987 |
| work_keys_str_mv | AT nurmasitohislamiahmustaffakamal constructionandtestingofslamshockabsorbersforsmallhighspeedcraft |