Subsea Pipelaying Simulation by the “Situa-Petropipe” Software: A User Friendly Alternative

2008 ◽  
Author(s):  
Danilo Machado Lawinscky da Silva ◽  
Carl Horst Albrecht ◽  
Breno Pinheiro Jacob ◽  
Isaias Quaresma Masetti ◽  
Claudio Roberto Mansur Barros ◽  
...  
Keyword(s):  
User Interface ◽  
Numerical Simulations ◽  
Environmental Conditions ◽  
Structural Behavior ◽  
Model Generation ◽  
Interface Model ◽  
Computational Tool ◽  
Hydrodynamic Behavior ◽  
User Friendly ◽  
Oil Company

Currently, Petrobras (the Brazilian state oil company) performs numerical simulations of pipelaying operations employing commercial software, such as OffPipe [1]. However, such tools presents restrictions/limitations related to the user interface, model generation and analysis formulations. These limitations hinder its efficient use for analyses of installation procedures for the scenarios considered by Petrobras, using the BGL-1 barge (owned by Petrobras) or other vessels, considering for instance particular types of stingers depending on depth and pipeline, with different lengths and geometries adapted to certain laying conditions in S-Lay procedures. Therefore, the objective of this work is to present the development and application of a tailored, in-house non-commercial computational tool in which the modules follow Petrobras users’ specifications, in order to overcome the limitations for specific needs and particular scenarios in the simulation of several types of pipeline procedures. Such tool, called SITUA-PetroPipe, presents a friendly interface with the user, for instance allowing the complete customization of the configuration of laybarge and stinger rollers. It also includes novel analysis methods and formulations, including the ability of coupling the structural behavior of the pipe with the hydrodynamic behavior of the vessel motions under environmental conditions.

Definition of the Best Position for the Turret in an FPSO Based on a Hydrodynamic-Structural Analysis

2007 ◽  
Author(s):  
Ge´rson B. Matter ◽  
Sergio H. Sphaier ◽  
Joel S. Sales
Keyword(s):  
Structural Analysis ◽  
Environmental Conditions ◽  
Experimental Results ◽  
Physical Models ◽  
Structural Behavior ◽  
Hydrodynamic Behavior ◽  
Mooring Lines ◽  
Definition Of

This paper presents a methodology for the positioning of a turret based on the hydrodynamic behavior of the FPSO and the structural behavior of the mooring lines. It is presented a procedure for the simulation of the equilibrium and the dynamics of the FPSO’s for a range of environmental conditions and positions of the turret. The results are studied in order to define the best position for the turret. Experimental results are used in order to calibrate the physical models.

UI Analysis and Style Design

2012 ◽  
Vol 442 ◽  
pp. 87-91
Author(s):  
Jian Chun Zhang ◽  
Hai Hui Shen
Keyword(s):  
User Interface ◽  
Interactive Software ◽  
Interface Model ◽  
Application Logic ◽  
Executable Programs

Traditional interactive software and its User Interface (UI) have many shortcomings, so it's hard to meet the needs of users. But the new personalized interface model has good expansibility as it's based on XML language. In addition, the separate storage of XML file and executable programs fully realize the separation of application logic and UI.

The Behavior of Tiled Laminate GFRP Composites, a Class of Robust Materials for Civil Applications

2019 ◽  
Author(s):  
Wouter De Corte ◽  
Jordi Uyttersprot ◽  
Wim Van Paepegem
Keyword(s):  
Crack Propagation ◽  
Numerical Simulations ◽  
Bridge Deck ◽  
Fatigue Loading ◽  
Structural Behavior ◽  
Gfrp Composites ◽  
Civil Structures ◽  
Laminate Composites ◽  
Deck Panels ◽  
Highly Loaded

<p>This paper focuses on the structural behavior of tiled laminate composites. Such laminates, in which the plies are not parallel to the outer surfaces are found in GFRP bridge deck panels. The technology is developed for the construction of robust GFRP panels useful in highly loaded structures such as bridges or lock gates. In civil structures, the drawback in traditional FRP sandwich structures has always been debonding of skin and core. Such a debonding problem may occur after unintentional impact, followed by fatigue loading. Through the concept of using overlapping Z-shaped and two-flanged web laminates, alternating with polyurethane foam cores, debonding is no longer possible in vacuum infused GFRP bridge deck panels. In such panels, the fibers in the upper and lower skins as well as in the vertical webs run in all directions, rendering a resin-dominated crack propagation impossible. As a result of the integration of core and skin reinforcement, a skin material is created in which the reinforcement is not parallel to the outer surfaces, but tiled. Based on experimental results and numerical simulations the relevance of tiled laminates for civil applications is demonstrated.</p>

scholarly journals CNN-based Diagnosis System on Skin Cancer using Ensemble Method Weighted by Cubic Precision

2021 ◽  
Author(s):  
Pengcheng Jiang
Keyword(s):  
User Interface ◽  
Skin Cancer ◽  
Language Processing ◽  
Classification Accuracy ◽  
Model Updating ◽  
Early Stage ◽  
Model Performance ◽  
Diagnosis System ◽  
Cancer Symptoms ◽  
User Friendly

<i>Abstract</i>— One of the most prevalent diseases, skin cancer, has been proven to be treatable at an early stage. Thus, techniques that allow individuals to identify skin cancer symptoms early are in great demand. This paper proposed an interactive skin lesion diagnosis system based on the ensemble of multiple sophisticated CNN models for image classification. The performance of ResNet50, ResNeXt50, ResNeXt101, EfficientNetB4, Mobile-NetV2, MobileNetV3, and MnasNet are investigated separately as ensemble components. Then, using various criteria, we constructed ensembles and compared the accuracy they achieved. Moreover, we designed a method to update the ensemble for new data and examined its performance. In addition, a few natural language processing (NLP) techniques were used to make our system more user-friendly. To integrate all the functionalities, we built a user interface with PyQt5. As a result, MobileNetV3 achieved 91.02% as the best accuracy among all single models; ensemble weighted by cubic precision achieved 92.84% accuracy as the highest one in this study; a notable improvement in accuracy demonstrated the effectiveness of the model updating approach, and a system with all of the desired features was successfully developed. These findings benefit in two aspects. For model performance, applying cubic precisions can increase ensemble learning classification accuracy. For the developed diagnosis system, it can aid in the

scholarly journals Recommendations and Analysis of Model-based User Interface Model

2012 ◽  
Vol 16 (5) ◽  
pp. 1077-1082
Author(s):  
Chang-Su Kim ◽  
So-Ra Yu ◽  
Sung-Han Kim ◽  
Seung-Yun Lee ◽  
Hoe-Kyung Jung
Keyword(s):  
User Interface ◽  
Interface Model ◽  
Model Based

scholarly journals MODEL PENUNJANG KEPUTUSAN INVESTASI BAGI PENGEMBANGAN AGROINDUSTRI PERIKANAN

2016 ◽  
Vol 13 (3) ◽  
Author(s):  
Bambang Herry Purnomo
Keyword(s):  
Expert System ◽  
Fuzzy Expert System ◽  
Interface Model ◽  
User Friendly

Investasi mempunyai peranan penting dalam menumbuhkembangkan agroindustri perikanan. Model penunjang keputusan investasi diperlukan dalam rangka membantu pemerintah daerah mengambil keputusan investasi agroindustri perikanan secara cepat dan tepat. Kajian ini bertujuan merancangbangun Sistem Manajemen Ahli untuk menunjang keputusan investasi dengan menggunakan pendekatan wilayah bagi pengembangan agroindustri perikanan dan kelembagaannya.  Sistem terdiri dari 6 model, yaitu (1)  fuzzy expert system untuk menentukan wilayah pengembangan, (2)  model untuk menentukan komoditas perikanan unggulan, (3) model  untuk menentukan produk unggulan, (4) model untuk menentukan potensi bahan baku, (5) model   analisis kelayakan finansial proyek agroindustri, dan (6) model untuk menentukan bentuk kelembagaan bagi pengembangan usaha kecil perikanan. Verifikasi model dilakukan di Kabupaten Tuban, Jawa Timur. Contoh hasil verifikasi menunjukkan bahwa wilayah pengembangan yang terpilih adalah Kecamatan Palang dengan komoditas utamanya ikan teri dan produk unggulannya ikan teri asin. Potensi bahan baku ikan teri pada tahun 2010 yang dapat dimanfaatkan oleh proyek agroindustri di wilayah ini adalah 1067 ton. Kajian lebih lanjut yang disarankan adalah penggunaan model dinamis untuk menduga produksi ikan teri dan pengembangan interface model penunjang keputusan yang lebih fleksibel dan user friendly.

A User Interface Model for Navigation in Virtual Environments

2002 ◽  
Vol 5 (5) ◽  
pp. 443-449 ◽  
Author(s):  
Márcio Serolli Pinho ◽  
Leandro Luís Dias ◽  
Carlos G. Antunes Moreira ◽  
Emmanuel González Khodjaoghlanian ◽  
Gustavo Pizzini Becker ◽  
...  
Keyword(s):  
User Interface ◽  
Virtual Environments ◽  
Interface Model
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