An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String
Dredging hoses are flexible and are particularly suitable for slurry transportations for mud or sand in dredging projects. To achieve sufficient bending stiffness and to prevent the pipe body from collapsing, this type of hose segment is a composite structure that is embedded with several cord reinf...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/12/3/421 |
| _version_ | 1827305922174648320 |
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| author | Jingjing Liu Long Yu Xiaoyan Li Jing Liu |
| author_facet | Jingjing Liu Long Yu Xiaoyan Li Jing Liu |
| author_sort | Jingjing Liu |
| collection | DOAJ |
| description | Dredging hoses are flexible and are particularly suitable for slurry transportations for mud or sand in dredging projects. To achieve sufficient bending stiffness and to prevent the pipe body from collapsing, this type of hose segment is a composite structure that is embedded with several cord reinforcement layers and steel wires in its rubber layer. To quickly evaluate the nonlinear bending mechanical properties of rubber hoses, this study proposes the equivalent stiffness method of linear superposition, which is verified by test data and numerical results. The results show that the equivalent bending stiffness method proposed in this study is in good agreement with numerical and experimental results. Then, by comparing the calculation results of the hose string, it was demonstrated that the linear stiffness superposition method proposed in this study can also accurately predict the bending mechanical behavior characteristics of string hose, and provide reliable guidance for hose design in practice. |
| first_indexed | 2024-04-24T18:07:13Z |
| format | Article |
| id | doaj.art-98f22bf4fa6e4dea89cb9e54ca8b635e |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-04-24T18:07:13Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-98f22bf4fa6e4dea89cb9e54ca8b635e2024-03-27T13:49:13ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-02-0112342110.3390/jmse12030421An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose StringJingjing Liu0Long Yu1Xiaoyan Li2Jing Liu3State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaCCCC Guangzhou Dredging Co., Ltd., Guangzhou 510220, ChinaCCCC Guangzhou Dredging Co., Ltd., Guangzhou 510220, ChinaDredging hoses are flexible and are particularly suitable for slurry transportations for mud or sand in dredging projects. To achieve sufficient bending stiffness and to prevent the pipe body from collapsing, this type of hose segment is a composite structure that is embedded with several cord reinforcement layers and steel wires in its rubber layer. To quickly evaluate the nonlinear bending mechanical properties of rubber hoses, this study proposes the equivalent stiffness method of linear superposition, which is verified by test data and numerical results. The results show that the equivalent bending stiffness method proposed in this study is in good agreement with numerical and experimental results. Then, by comparing the calculation results of the hose string, it was demonstrated that the linear stiffness superposition method proposed in this study can also accurately predict the bending mechanical behavior characteristics of string hose, and provide reliable guidance for hose design in practice.https://www.mdpi.com/2077-1312/12/3/421dredging hosemechanical nonlinearitystiffness superpositionstring bending |
| spellingShingle | Jingjing Liu Long Yu Xiaoyan Li Jing Liu An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String Journal of Marine Science and Engineering dredging hose mechanical nonlinearity stiffness superposition string bending |
| title | An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String |
| title_full | An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String |
| title_fullStr | An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String |
| title_full_unstemmed | An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String |
| title_short | An Equivalent Linear Method to Predict Nonlinear Bending Mechanics of Dredging Floating Hose String |
| title_sort | equivalent linear method to predict nonlinear bending mechanics of dredging floating hose string |
| topic | dredging hose mechanical nonlinearity stiffness superposition string bending |
| url | https://www.mdpi.com/2077-1312/12/3/421 |
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