scholarly journals On the selection of boundary conditions for top tensioned risers facing wave induced vibrations

2018 ◽  
Vol 20 (4) ◽  
pp. 1579-1587
Author(s):  
Mohammad Javad Ketabdari ◽  
Zohreh Sadat Haghayeghi
Keyword(s):  
Boundary Conditions ◽  
Wave Induced ◽  
Selection Of

scholarly journals An Application Of The Theory Of Scale Of Banach Spaces

2015 ◽  
Vol 29 (1) ◽  
pp. 51-59
Author(s):  
Łukasz Dawidowski
Keyword(s):  
Banach Space ◽  
Cauchy Problem ◽  
Boundary Conditions ◽  
Heat Equation ◽  
Banach Spaces ◽  
Abstract Cauchy Problem ◽  
Initial Boundary ◽  
Scale Of Banach Spaces ◽  
The Cauchy Problem ◽  
Selection Of

AbstractThe abstract Cauchy problem on scales of Banach space was considered by many authors. The goal of this paper is to show that the choice of the space on scale is significant. We prove a theorem that the selection of the spaces in which the Cauchy problem ut − Δu = u|u|s with initial–boundary conditions is considered has an influence on the selection of index s. For the Cauchy problem connected with the heat equation we will study how the change of the base space influents the regularity of the solutions.

scholarly journals Selection of screw characteristics and operational boundary conditions to facilitate post-flush urine and faeces separation within single household sanitation systems

2016 ◽  
Vol 2 (6) ◽  
pp. 953-964 ◽  
Author(s):  
E. Mercer ◽  
P. Cruddas ◽  
L. Williams ◽  
A. Kolios ◽  
A. Parker ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
System P ◽  
Sanitation Systems ◽  
Fresh Urine ◽  
Selection Of

This article demonstrates the application of a screw auger to separate fresh urine and faeces in a household scale sanitation system.

An Iceberg Collision Reliability Model Incorporating Hydrodynamic Effects

1990 ◽  
Vol 112 (4) ◽  
pp. 364-369
Author(s):  
M. Isaacson ◽  
K. A. McTaggart
Keyword(s):  
Kinetic Energy ◽  
Energy Levels ◽  
Added Mass ◽  
Wave Climate ◽  
Climate Data ◽  
Offshore Structure ◽  
Reliability Method ◽  
Wave Induced ◽  
Hydrodynamic Effects ◽  
Selection Of

A probabilistic model is developed for the selection of a design iceberg collision event with a fixed offshore structure. The model has been formulated such that input parameters can be obtained from available iceberg surveillance and wave climate data. Once input data for a given site are obtained, probabilities of exceedance for various kinetic energy levels are estimated using a second-order reliability method. A key feature of the model is its incorporation of wave-induced motions and added mass in the evaluate of iceberg kinetic energy.

Analysis of a Fixed-Guided Compliant Beam With an Inflection Point Using the Pseudo-Rigid-Body Model (PRBM) Concept

2012 ◽  
Author(s):  
Ashok Midha ◽  
Sushrut G. Bapat ◽  
Adarsh Mavanthoor ◽  
Vivekananda Chinta
Keyword(s):  
Boundary Condition ◽  
Boundary Conditions ◽  
Rigid Body ◽  
Inflection Point ◽  
Equilibrium Equations ◽  
Displacement Boundary ◽  
Body Model ◽  
Rigid Body Model ◽  
Domain Concept ◽  
Selection Of

This paper provides an efficient method of analysis for a fixed-guided compliant beam with an inflection point, subjected to beam end load or displacement boundary conditions, or a combination thereof. To enable this, such a beam is modeled as a pair of well-established pseudo-rigid-body models (PRBMs) for fixed-free compliant beam segments. The analysis procedure relies on the properties of inflection in developing the necessary set of static equilibrium equations for solution. The paper further discusses the multiplicity of possible solutions, including displacement configurations, for any two specified beam end boundary conditions, depending on the locations of the effecting force and/or displacement boundary conditions. A unique solution may exist when a third beam end boundary condition is specified; however, this selection is not unconditional. A deflection domain concept is proposed to assist with the selection of the third boundary condition in a more realistic manner.

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