{"title":"The Effect of FPSO’s Mooring System on Dynamic Response and Fatigue Life of Riser","authors":"P. Edalat, Saeed Imani Bidgoli","doi":"10.52547/ijmt.10.18.65","DOIUrl":"https://doi.org/10.52547/ijmt.10.18.65","url":null,"abstract":"","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47166512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammadreza Negahdari, A. Najafi, P. Ahmadi, Seyed Mahmood Kheradmand
{"title":"Numerical and experimental hydrodynamic analysis of catamaran with and without V-like center bow","authors":"Mohammadreza Negahdari, A. Najafi, P. Ahmadi, Seyed Mahmood Kheradmand","doi":"10.52547/ijmt.10.18.13","DOIUrl":"https://doi.org/10.52547/ijmt.10.18.13","url":null,"abstract":"","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47557578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mahdieh givehki, Ebrahim Shabani, Mohammad Adibzade
{"title":"Hydrodynamic and Sediment Transport Studies of Gorgan Bay (Case Study: Khozeini Channel and Investigation of Jetty’s Role in Reducing Active Sedimentation After Channel Dredging)","authors":"Mahdieh givehki, Ebrahim Shabani, Mohammad Adibzade","doi":"10.52547/ijmt.10.18.49","DOIUrl":"https://doi.org/10.52547/ijmt.10.18.49","url":null,"abstract":"","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47948348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sadegh Sharifi, Seyed Farzad Hosseini, mohammad kananizadeh, Hadi Gholami
{"title":"A new multi-objective model for berth allocation and quay crane assignment problem with speed optimization and air emission considerations (A case study of Rajaee Port in Iran)","authors":"Sadegh Sharifi, Seyed Farzad Hosseini, mohammad kananizadeh, Hadi Gholami","doi":"10.52547/ijmt.10.18.25","DOIUrl":"https://doi.org/10.52547/ijmt.10.18.25","url":null,"abstract":"","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49381089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reduction of Effect of Waves Disturbance on Ship Roll Motion by Using Robust Nonlinear Control","authors":"Hamid Malekizadeh","doi":"10.52547/ijmt.10.18.57","DOIUrl":"https://doi.org/10.52547/ijmt.10.18.57","url":null,"abstract":"","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48895031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Small Scale Physical Measurement of Wave Overtopping For Different Shore Protection Structures","authors":"F. Azarsina, A. Pirzadeh, Ghasem Darvish","doi":"10.29252/ijmt.12.49","DOIUrl":"https://doi.org/10.29252/ijmt.12.49","url":null,"abstract":"Article History: Received: 4 Jun 2019 Accepted: 5 Sep. 2019 Using artificial constructions is one of the most important ways to protect shores against wave actions and the consequent erosion. Due to costly nature of large scale marine projects, it is considered an efficient approach to study small scale model of the structure for simulation of sea conditions, measurement of hydraulic parameters and wave-structure interactions. In present research, construction of a small wave flume has been reported. Water up to 15 cm deep is filled in the flume and a DC motor directly rotates a flap in oscillations as a result of which regular waves of less than 10 cm height are produced. Wave lengths are around one meter, and wave periods are about one second. High quality fast images were analyzed in order to characterize the waves. Test runs were performed with different combinations of the wave parameters and the water depth, on five different revetments including: vertical seawall, simple slope, stepped slope, curved and recurved. Wave discharge with the aid of a small reserve tank at the far end of flume was measured. Results show that the recurved structure for most of the test cases reduce the wave overtopping to zero. The stepped slope has an efficient performance in dissipating the wave energy and reducing the wave run-up and overtopping. Simple slope recorded maximum discharge. Curved structure creates a water column of high speed vertical jet, and lastly the vertical seawall undergoes severe wave impact. Quantitative test results have been compared with well-known Owen’s formula for wave overtopping.","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45429204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Methodology to Analysis and Predict Shoreline Changes Due to Human Interventions (Case Study: Javad Al-Aemmeh port, Iran)","authors":"M. Rezaee, A. Golshani, Hosein Mousavizadegan","doi":"10.29252/ijmt.12.9","DOIUrl":"https://doi.org/10.29252/ijmt.12.9","url":null,"abstract":"Article History: Received: 8 Mar. 2019 Accepted: 2 Jul. 2019 In recent years, determining the rate of shoreline change by its historical trend has been reported frequently. This study has focused on shorelines at the adjacency of Javad Al-Aemmeh port which has undergone successive constructions in its region. The decadal trend of studied shoreline change was determined by the historical trend method. A numerical method was also employed to reduce the probable deficiencies concerned to these constructions. Accordingly, for the first time, a framework was developed to compare the results of historical trend and numerical methods with a field-measured value both spatially and quantitatively and based on this comparison, the most suitable rate of change was assigned to each coastal landform. Finally, it was revealed that among the computed rates, the Linear Regression Rate (LRR) from historical trend method has given the best estimation for the shoreline change rate, but in those parts which the shoreline was directly under influence of human interventions the change rate derived from the numerical method has been more accurate. Besides, results showed that at those parts which the Net Shoreline Movement (NSM) and the Shoreline Change Envelope (SCE) are identical, predicting the future position of shoreline by its past trend is more reliable.","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45604882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Tamimi, M. Seif, S. Shahvaghar-Asl, S. Naeeni, M. Zeinoddini
{"title":"FIV Energy Harvesting from Sharp Edge Square and Diamond Oscillators","authors":"V. Tamimi, M. Seif, S. Shahvaghar-Asl, S. Naeeni, M. Zeinoddini","doi":"10.29252/ijmt.12.1","DOIUrl":"https://doi.org/10.29252/ijmt.12.1","url":null,"abstract":"1 Ph.D., School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran; vahid.tamimi@ut.ac.ir 2 Professor, Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; seif@sharif.edu 3 Ph.D. Student, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran 4 Professor, School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran; stnaeeni@ut.ac.ir 5 Professor, Department of Civil Engineering, K.N.Toosi University of Technology, Tehran, Iran; zeinoddini@kntu.ac.ir","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44488478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation of Velocity Influence on Cathodic Polarization of Aluminum Alloys in 3.5% NaCl by Electrochemical Impedance Spectroscopy","authors":"K. A. Vakilabadi, Hosein Khanzadi","doi":"10.29252/ijmt.12.25","DOIUrl":"https://doi.org/10.29252/ijmt.12.25","url":null,"abstract":"Article History: Received: 6 Mar. 2019 Accepted: 30 Jul. 2019 Aluminum–magnesium alloys are specially used in high speed boats, submarines, desalination systems, etc. In this re-search the electrochemical impedance spectroscopy technique was utilized to study the flow accele-rated pitting corrosion behavior of this alloy in 3.5% NaCl solution. To do so, impedance spectra of the samples after 20h of exposure to the test solution at a rotation speeds were investigated. SEM (scanning electron microscopy) method was utilized to investigate the changes in the surface of the samples. Results indicated that under static and dynamic con-dition, the surface growth rate of the pits increases with time. Moreover, at -0.9 V upon altering the flow condition from static to dynamic, the surface growth rate of the pits and their surface fraction increases while the corrosion resistance of the passive layer is time dependent.","PeriodicalId":34429,"journal":{"name":"International Journal of Maritime Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43669209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}