Dry Wellhead Completion for Mono-Column FPSO Units Operating in Ultradeep Waters

2009 ◽  
Author(s):  
Marta C. T. Reyes ◽  
Alexandre T. P. Alho ◽  
Peter Kaleff ◽  
Isaias Q. Masetti
Keyword(s):  
Vertical Motion ◽  
Design Issues ◽  
Floating Structure ◽  
Structural Layout ◽  
Column Design ◽  
Structure Layout

A floating structure is proposed to act as a dry wellhead completion support for a mono-column design developed by Petrobras: the MONOBR FPSO. After the discussion of the design issues involved, the MONOBR design is introduced and the peculiarities affecting the insertion of a floating structure into its moonpool are analyzed. In what follows, the main characteristics of the proposed floating structure layout are presented in the context of its purpose of allowing for the effortless vertical motion relatively to the housing mono-column unit, followed by the considerations pertinent to the ballast system devised to allowing for the adequate operation, by the characteristics of the roller mechanisms proposed to ensure the aligned motion desired and by the analysis of the structural issues and the proposed structural layout.

The Discuss about the New Approach of the Structural Layout of Belt Type Sintering Machine

2012 ◽  
Vol 430-432 ◽  
pp. 2058-2061
Author(s):  
Xue Jiao Wang ◽  
Ming Hua Bai ◽  
Su Bo Ren ◽  
Jian Wei Chen
Keyword(s):  
Hydraulic System ◽  
Thrust Force ◽  
Mechanical Equilibrium ◽  
New Approach ◽  
Sintering Machine ◽  
Structural Layout ◽  
Wheel Drive ◽  
Sprocket Wheel ◽  
Structure Layout

Existing sintering machine for controlling of arch camber is not ideal. The usual way is by means of the hydraulic system to balance the excess thrust what is caused arching. For this reason, the paper considers to change the structure layout of belt sintering machine ,so that eliminate the arch camber by itself. So improvement of process layout of 60㎡ sintering machine has been made, and thus deduced the expression and got the limen formula of the thrust force which the back sprocket wheel drive lower pallet cars. At the same time, through the analysis and compute got driving moment of lower pallet cars, which caused by four pallet cars from back sprocket wheel. According to equation of mechanical equilibrium to eliminate the arch of pallet cars, determine the suitable angle after sintering machine has been improved to solve the problem about arch pallet cars completely.

Design Issues for Connecting Two Floating Structures

2005 ◽  
Author(s):  
Cedric Morandini ◽  
Jean-Marc Orozco ◽  
Didier L’Hostis
Keyword(s):  
Point Of View ◽  
Design Issues ◽  
Floating Structure ◽  
Hydrodynamic Analysis ◽  
Floating Structures ◽  
Safety Issues ◽  
Potential Contact ◽  
Operational Issues

The proposed paper shall list and present the issues from a mooring and hydrodynamic point of view relative to the design of a floating structure connected to another floating structure in surface and to the seabed with traditional anchoring legs, such as a Flotel with an F(P)SO. The paper will propose tentative ways to properly design the connections between the two floating structures which will limit their relative excursions in order to allow the setting of a gangway between them. In addition, the design should forbid at any time any potential contact between the two structures in intact and damage conditions, and should trigger at any time acceptable tensions in the various anchoring and mooring systems. The paper will address the appropriate mooring and hydrodynamic analysis to be used for such exercise. Safety issues such as quick disconnection in case of fire are investigated. Operational issues are to be discussed as well.

FUSELAGE STRUCTURAL LAYOUT INVESTIGATION OF ADVANCED WIDE-BODY AIRCRAFT

2013 ◽  
Vol 44 (5) ◽  
pp. 715-726
Author(s):  
Viktor Illarionovich Biryuk ◽  
Aleksey Aleksandrovich Navoev ◽  
Vladimir Ivanovich Chernousov
Keyword(s):  
Structural Layout

Design Issues for Helmet-Mounted Display Systems for Rotary-Wing Aviation.

1998 ◽  
Author(s):  
Clarence E. Rash ◽  
William E. McLean ◽  
John C. Mora ◽  
Melissa H. Ledford ◽  
Ben T. Mozo
Keyword(s):  
Design Issues ◽  
Rotary Wing ◽  
Display Systems
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