Experimental Investigation of FPSO Roll Motion Response Coupled with Sloshing in a Pair of Two Row Cargo Tanks

2021 ◽  
Author(s):  
Jane-Frances Igbadumhe ◽  
Mirjam Furth ◽  
Jack Bonoli ◽  
John Dzielski
Keyword(s):  
Roll Motion ◽  
High Demand ◽  
Towing Tank ◽  
Motion Response ◽  
Model Response ◽  
Stevens Institute ◽  
Time Histories ◽  
Early Production ◽  
Institute Of Technology ◽  
Continuous Loading

Abstract Floating Production Storage and Offloading Units (FPSOs) will continue to be in high demand because of their numerous advantages; such as, their ability to offer early production and operate in ultra-deep water locations, while remaining easy to relocate to meet changing needs. By design, slack cargo tanks are almost always present in FPSOs due to continuous loading and offloading operations; however, the presence of slack cargo impacts the seakeeping stability abilities of FPSOs. There are limited published experimental data on coupled sloshing with seakeeping of stationary vessels, and existing studies on this have focused on single row cargo tanks which is seldom the case in FPSOs. The aim of this paper is to study roll motion coupled with sloshing in partially-filled pair of two-row tanks of a stationary FPSO model exposed to regular beam waves. The model tests was performed in the Davidson Laboratory towing tank at Stevens Institute of Technology. The FPSO model response in roll was measured, and the time histories of sloshing oscillation were measured on the starboard and port side of one of the stern cargo tanks. The results show that varying internal cargo sloshing leads to unpredictable motion response of floating vessels that should be accounted for in the design and offloading operations of FPSO.

Some Considerations on the Reaction of Wind Upon Sails

1938 ◽  
Vol 42 (334) ◽  
pp. 867-871 ◽  
Author(s):  
J. T. C. Moore-Brabazon
Keyword(s):  
New Jersey ◽  
Model Tests ◽  
Towing Tank ◽  
Stevens Institute ◽  
Institute Of Technology ◽  
General Configuration ◽  
Sailing Boat

The study of the problems connected with a successful racing sailing boat, like Gaul, can be divided into three parts. There is first of all the general configuration of the hull upon which lately much study has been directed. Anybody interested in this should look up the article, “Model Tests of Sailing Yachts,” by Kenneth S. M. Davidson, Director, Experimental Towing Tank, Stevens Institute of Technology, New Jersey, appearing in the August issue of “The Rudder,” in which it will be noted model hulls are pulled through the tank at an angle of heel, and with an angle of drift.

An Improved Undergraduate Human Factors Course: Three Results

1983 ◽  
Vol 27 (6) ◽  
pp. 455-458
Author(s):  
Richard Halstead-Nussloch ◽  
Mark C. Detweiler ◽  
M. Peter Jurkat ◽  
Elissa L.A. Hamilton ◽  
Leon S. Gold
Keyword(s):  
Human Factors ◽  
Experimental Methods ◽  
Design Solution ◽  
Course Enrollment ◽  
Stevens Institute ◽  
Computer Based ◽  
Institute Of Technology

The undergraduate human factors course was improved at the Stevens Institute of Technology. The objectives of the course improvement were twofold: 1) to increase the quality of the course, and 2) to increase enrollment. Computer-based modules were developed and implemented to achieve these objectives. Three primary findings emerged from their use. First, students finished the course with a firm grounding in the empirical and experimental methods of human factors. Second, students generated more design solution alternatives by using the modules. Third, course enrollment increased by seventy-five percent.

On the Integration of Remote and Virtual Experiments Into a Comprehensive Student Laboratory Experience

2006 ◽  
Author(s):  
El-Sayed S. Aziz ◽  
Constantin Chassapis ◽  
Sven K. Esche
Keyword(s):  
Experimental System ◽  
Asynchronous Learning ◽  
Web Based ◽  
Educational Benefits ◽  
Laboratory Experience ◽  
Virtual Experiments ◽  
Laboratory Education ◽  
Stevens Institute ◽  
Student Laboratory ◽  
Institute Of Technology

Student laboratories have always played a key role in the engineering education at Stevens Institute of Technology (SIT). Recently, SIT has designed and implemented several innovative Web-based tools for engineering laboratory education and evaluated their learning effectiveness in pilot deployments in various engineering courses. These Web-based tools include both remotely operated experiments based on actual experimental devices as well as virtual experiments representing software simulations. These tools facilitate the development of learning environments, which - possibly in conjunction with traditional hands-on experiments - allow the expansion of the scope of the students' laboratory experience well beyond the confines of what would be feasible in the context of traditional laboratories. This becomes possible because of the scalability of resources that are shared through the Web and the flexibility of software simulations in varying the characteristic parameters of the experimental system under investigation. Further educational benefits of the proposed laboratory approach are that asynchronous learning modes are supported and discovery-based self-learning, of the students is promoted. This paper will present the details of the approach taken at SIT in integrating these Web-based tools into a comprehensive student laboratory experience. As an example for the implementation of such Web-based experiments, an Industrial-Emulator/Servo-Trainer System will be described, which is used at SIT in a junior-level course on mechanisms and machine dynamics.

scholarly journals Contribuições do segundo e do terceiro modos internos de gravidade para a resposta do movimento vertical

2008 ◽  
Vol 31 (2) ◽  
pp. 50-52
Author(s):  
Julio Buchmann
Keyword(s):  
Climate Model ◽  
Normal Modes ◽  
Vertical Motion ◽  
Real Data ◽  
Primitive Equations ◽  
Tropical Atlantic ◽  
Motion Response ◽  
Atmospheric Research ◽  
East Pacific ◽  
Model Response

In earlier papers of a series of real data integrations of the National Center for Atmospheric Research Community Climate Model with tropical heat anomalies display regions of pronounced subsidence and drying located several thousand kilometers westward poleward of the heating for cases of tropical Atlantic heating and tropical east Pacific heating. This highly predictable sinking response is established within the first five days of these integrations. The normal-modes of a set of adiabatic primitive equations linearized about a basic state at rest are used to partition model response into gravity-inertia and Rossby modes. The most important contribution for the vertical motion response comes from the gravity modes added for all vertical modes. The principal emphasis is given upon the contributions of the second and third internal vertical modes (with equivalent depths on the order of a fews hundred meters) for the vertical motion response

Sign in / Sign up

Export Citation Format

Share Document