International Journal of Offshore and Coastal Engineeing最新文献_第3页

Effect Analysis of Post Heating Temperature Variation on Metallography and Bending Test of GMAW ASTM A53 Steel Weld Joint 加热后温度变化对GMAW - ASTM A53钢焊接接头金相及弯曲试验的影响分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2022-05-01 DOI: 10.12962/j25800914.v6i1.14553

H. Pratikno, Muhammad Rizqy Jafa, H. Ikhwani

引用次数: 0

Comparative Analysis of GTAW, GMAW, and FCAW Welding Results on A36 Steel Against Tensile Test and Macrostructure A36钢GTAW、GMAW和FCAW焊接拉伸试验及宏观组织对比分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2022-05-01 DOI: 10.12962/j25800914.v6i1.14555

H. Pratikno, Hafizh Abiyyuda, W. Dhanista

引用次数: 0

Analysis of the Impact of COVID-19 Pandemic on Trade and Economy of the Coastal Communities of Kenjeran Village, Surabaya Using the Fault Tree Analysis (FTA) Method 基于故障树分析法的新冠肺炎疫情对泗水市肯杰兰村沿海社区贸易和经济的影响分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2022-05-01 DOI: 10.12962/j25800914.v6i1.14557

Hario Bagoes Wirandoro, Widi Agoes Pratikto, S. Silvianita

引用次数: 0

Effect of Preheating Process and V Groove Type on the Tensile and Metallography Test of ASTM A53 with A36 Weld Joint Using FCAW Method 预热工艺和V型坡口对ASTM A53与A36焊接接头FCAW拉伸和金相试验的影响

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-11-01 DOI: 10.12962/j25800914.v6i2.14769

H. Pratikno, Abdullah Husin Baredwan, W. Dhanista

引用次数: 0

Risk Based Inspection using API RP 580 and DNV RP F116 Towards Free Spanning Pipelines 使用API RP 580和DNV RP F116进行自由跨越管道的风险检测

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-05-21 DOI: 10.12962/J2580-0914.V4I4.10929

Y. Hadiwidodo, Iftinaniffah Qonitah, D. Rosyid

引用次数: 0

Wave Transmission Analysis on Hexagonal Shape Floating Breakwater 六角形浮式防波堤波浪传输特性分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-05-21 DOI: 10.12962/J2580-0914.V4I4.10934

Sujantoko Sujantoko, H. Armono, W. Wardhana, D. Kurniawan

{"title":"Wave Transmission Analysis on Hexagonal Shape Floating Breakwater","authors":"Sujantoko Sujantoko, H. Armono, W. Wardhana, D. Kurniawan","doi":"10.12962/J2580-0914.V4I4.10934","DOIUrl":"https://doi.org/10.12962/J2580-0914.V4I4.10934","url":null,"abstract":"Coastal areas have many benefits for activities, such as port construction, fishing activities, recreation areas, resource utilization, alternative energy-producing places, etc. However, many factors limit this use due to water wave activity, such as storm surges and the potential for tsunamis. These factors also cause abrasion and coastal erosion that can damage the coastal environment. To overcome this problem, it can be done by building a coastal protective structure, one of which is a floating breakwater. In this study, analysis of wave transmission on a hexagonal floating breakwater will be carried out to determine the effectiveness of its performance. The wave transmission test on the floating breakwater was carried out with variations of irregular waves (Jonswap spectrum) and mooring angles. The position of the wave probe is set at 100 cm and 220 cm behind the structure. The largest transmission coefficient occurs at a mooring angle of 30 o in both scenario 1 and scenario 2. The smallest transmission coefficient value is at an angle of 60 o in both scenarios of wave probe placement. The plotting results show that the transmission coefficient is directly proportional to the period and height of the incident wave and vice versa the transmission coefficient is inversely proportional to the steepness of the wave","PeriodicalId":182495,"journal":{"name":"International Journal of Offshore and Coastal Engineeing","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123436313","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}

引用次数: 2

Fatigue Life Analysis of Mooring System: The Effect of Asymmetry Mooring System Configuration on Single Point Mooring 系泊系统疲劳寿命分析:非对称系泊系统配置对单点系泊的影响

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-05-21 DOI: 10.12962/J2580-0914.V4I4.10932

Revy Maghriza, E. Djatmiko, Murdjito

{"title":"Fatigue Life Analysis of Mooring System: The Effect of Asymmetry Mooring System Configuration on Single Point Mooring","authors":"Revy Maghriza, E. Djatmiko, Murdjito","doi":"10.12962/J2580-0914.V4I4.10932","DOIUrl":"https://doi.org/10.12962/J2580-0914.V4I4.10932","url":null,"abstract":"This journal explains the fatigue life analysis of anchor chain in the stand-alone single point mooring by comparing the 4x1 asymmetric and symmetrical mooring system configurations to determine whether the effect of the asymmetrical mooring system configuration on the fatigue life of the anchor chain is related to the length of the mooring lines, the pretensions of the mooring lines, and the angle of spread. The analysis was reviewed on the condition of ULS and FLS environmental loading based on API RP 2 SK code using Orcaflex with 3 hours of time- domain simulation. In the ULS condition, the symmetrical configuration can withstand environmental loads better in the direction of 0 o and 180 o with the generated maximum tension and maximum offset value smaller than the result from asymmetrical configuration. While the asymmetrical configuration can withstand environmental loads better in the direction of 90 o and 270 o with the generated maximum tension and maximum offset value smaller than the result from symmetrical configuration. In the FLS condition, the asymmetrical configuration has a longer minimum fatigue life and design life of anchor chain than the symmetrical configuration. This happens because of the spread angle of the mooring line, the length of the mooring line, and the pretension of the mooring line","PeriodicalId":182495,"journal":{"name":"International Journal of Offshore and Coastal Engineeing","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121419646","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}

引用次数: 0

Effect Analysis on Coating Methods and Corrosive Media Variations toward Adhesion Strength, Corrosion Rate, and Metallography of ASTM A36 Steel with Polyurethane Coating 涂层方法和腐蚀介质变化对ASTM A36钢聚氨酯涂层的附着强度、腐蚀速率和金相的影响分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-05-21 DOI: 10.12962/J2580-0914.V4I4.10933

H. Pratikno, Inaya Krista Pradyptia, H. Ikhwani

{"title":"Effect Analysis on Coating Methods and Corrosive Media Variations toward Adhesion Strength, Corrosion Rate, and Metallography of ASTM A36 Steel with Polyurethane Coating","authors":"H. Pratikno, Inaya Krista Pradyptia, H. Ikhwani","doi":"10.12962/J2580-0914.V4I4.10933","DOIUrl":"https://doi.org/10.12962/J2580-0914.V4I4.10933","url":null,"abstract":"Corrosion can cause material damage due to the material’s reaction with the environment. Corrosion will affect materials on construction, including metal material, thereby reducing the strength and the construction life, especially in a corrosive environment. The most effective and economical corrosion control is coating. The right coating application method will result in good bonding of the paint with the material, so that the corrosion protection will be better. T his research used the ASTM A36 carbon steel material and polyurethane coatings. The purpose of this study is to determine the adhesion strength and corrosion rate by varying the application methods, namely brush, roll, and spray. In the pull-off test , the highest value of adhesion strength was obtained in the spray coating method with an average value of 20,82 MPa. Whereas in the three-electrode cell testing, the lowest corrosion rate using NaCl corrosive media was found in the spray coating method with a value of 0.000025402 mmpy and the lowest corrosion rate using FeCl 3 corrosive media was found in the spray coating method with a value of 0.00182 mmpy.","PeriodicalId":182495,"journal":{"name":"International Journal of Offshore and Coastal Engineeing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124178155","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}

引用次数: 0

Experimental Study and Numerical Analysis of Crane Operability in Floating Crane Catamaran 浮式双体船起重机可操作性试验研究及数值分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-05-21 DOI: 10.12962/J2580-0914.V4I4.10930

Rizky Arrico Farhan, E. Djatmiko, Murdjito, A. Ghofur

{"title":"Experimental Study and Numerical Analysis of Crane Operability in Floating Crane Catamaran","authors":"Rizky Arrico Farhan, E. Djatmiko, Murdjito, A. Ghofur","doi":"10.12962/J2580-0914.V4I4.10930","DOIUrl":"https://doi.org/10.12962/J2580-0914.V4I4.10930","url":null,"abstract":"Crane vessel is a floating structure equipped with accommodation facilities and one or more cranes to do work in the field. Crane vessel continue to be developed so that they can lift large structures and operate safely in certain environmental conditions. The work that is usually done by crane vessel is to lift heavy or light loads from land to ship, from ship to land, from ship to sea, from sea to ship, and from ship to ship. The process of moving loads carried out by a crane vessel usually called the lifting process. In carrying out its work, a crane vessel is limited by certain criteria for safety reasons. One of them is the criterion that limits the heave motion at the end of the crane boom and roll and pitch motion of the crane vessel. In this final project, an experimental study and numerical analysis of crane operability were carried out on catamaran hulled crane vessel. Experiments were carried out at the Balai Teknologi Hidrodinamika BPPT and numerical analysis using the MOSES software. According to the criteria used, namely Operational Limitations of Offshore Crane Vessels, cranes on floating crane catamaran have the highest operability when the vessel heading is 0 o to the direction of the incoming waves, which is up to H s 1.45 m.","PeriodicalId":182495,"journal":{"name":"International Journal of Offshore and Coastal Engineeing","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133405993","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}

引用次数: 1

Analysis of the Effect of Abrasive Material and Polyurethane Coating Thickness Variations on ASTM A36 Steel Towards Corrosion Rate in Sea Water Environment 磨料和聚氨酯涂层厚度变化对ASTM A36钢在海水环境中腐蚀速率的影响分析

International Journal of Offshore and Coastal Engineeing Pub Date : 2021-05-01 DOI: 10.12962/j2580-0914.v4i3.9953

H. Pratikno, Felita Widya Hapsari, W. Dhanista

{"title":"Analysis of the Effect of Abrasive Material and Polyurethane Coating Thickness Variations on ASTM A36 Steel Towards Corrosion Rate in Sea Water Environment","authors":"H. Pratikno, Felita Widya Hapsari, W. Dhanista","doi":"10.12962/j2580-0914.v4i3.9953","DOIUrl":"https://doi.org/10.12962/j2580-0914.v4i3.9953","url":null,"abstract":"An unavoidable phenomenon of using steel as the main material in offshore structures and floating vessels is corrosion. One method of preventing corrosion is by coating and using polyurethane is one type of coating that is currently being developed in the maritime industry. But the success of this coating process is very dependent on the surface preparation process. The usual method used is blasting using an abrasive material. This study aims to find the response to the corrosion rate of polyurethane coating with thickness variations of 60 μm, 80 μm, and 100 μm by first blasting using abrasive material variations in the form of silica sand and steel grit. The result of the corrosion rate test showed that the lowest corrosion rate value was obtained in the variation of abrasive material in the form of steel grit. with a 100. μm of polyurethane coating thickness, that is 0,00008 mm/a. While the highest corrosion rate value was obtained in the variation of abrasive material in the form of silica sand with a 60 μm of polyurethane coating thickness, that is 0,02202 mm/a.","PeriodicalId":182495,"journal":{"name":"International Journal of Offshore and Coastal Engineeing","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114482517","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}

引用次数: 1