Fundamentals of Engineering Analysis and Design of Bioenergy Production Systems

2014 ◽  
pp. 1-2
Keyword(s):  
Production Systems ◽  
Engineering Analysis ◽  
Analysis And Design ◽  
Bioenergy Production

scholarly journals Parametric optimization of the cross-section and shape of the longitudinal member in frontal impact

2019 ◽  
Vol 140 ◽  
pp. 02013
Author(s):  
Dmitry Bogdanov ◽  
Yury Boldyrev ◽  
Pavel Cvetkov ◽  
Oleg Klyavin ◽  
Ilya Davydov ◽  
...  
Keyword(s):  
Cross Section ◽  
Parametric Optimization ◽  
Numerical Procedure ◽  
Software Systems ◽  
Engineering Analysis ◽  
Frontal Impact ◽  
Mathematical Statement ◽  
Analysis And Design ◽  
Optimization Task ◽  
Python Programming

The article considers the problem of optimal design of car body elements (longitudinal members) according to the chosen criteria. Both the questions of formulation of the optimization task and individual problems of its solution are studied. The mathematical statement of the problem is considered. Thus, the most attention is given to consideration of realisation of used numerical procedure of optimization. The system of numerical calculations is based on the most widely spread software systems for engineering analysis and design. The developed scripts on Python programming language are briefly considered. Results of optimization of longitudinal members of the car are given.

An enhanced semi-coupled methodology for the analysis and design of floating production systems

2020 ◽  
pp. 1-33
Author(s):  
Aldo Roberto Cruces Giron ◽  
William Steven Mendez Rodriguez ◽  
Fabrício Nogueira Correa ◽  
Breno P Jacob
Keyword(s):  
Equilibrium Position ◽  
Production Systems ◽  
Equations Of Motion ◽  
Coupled Analysis ◽  
Mooring Lines ◽  
Analysis And Design ◽  
Stiffness Matrices ◽  
Linear Effects ◽  
The Mean ◽  
Nonlinear Static

Abstract This work presents an enhanced hybrid methodology for the analysis and design of floating production systems (FPS). The semi-coupled (S-C) procedure exploits advantages of coupled and uncoupled models, incorporated into a three-stage sequence of analyses that can be fully automated within a single analysis program, presenting striking reductions of computational costs. The procedure begins by determining, through a full nonlinear static coupled analysis, the mean equilibrium position of the FPS with its mooring lines and risers. Then, it automatically evaluates equivalent 6-DOF stiffness matrices and force vectors representing the whole array of lines. Finally, these matrices/vectors are transferred to the dynamic analysis, solving the global 6-DOF equations of motion restarted from the static equilibrium position. This way, the S-C methodology represents all non-linear effects associated to the lines and consider their influence on the dynamic behavior of the hull. However, in some situations it could still overestimate dynamic amplitudes of LF motions, and/or underestimate amplitudes of line tensions. Thus, to improve the overall accuracy, enhanced procedures are incorporated to better represent damping and inertial contribution of the lines. Results of case studies confirm that this methodology provides results adequate for preliminary or intermediary design stages.

scholarly journals Using dynamic relative climate impact curves to quantify the climate impact of bioenergy production systems over time

GCB Bioenergy ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 427-443 ◽  
Author(s):  
Sierk de Jong ◽  
Mark Staples ◽  
Carla Grobler ◽  
Vassilis Daioglou ◽  
Robert Malina ◽  
...  
Keyword(s):  
Production Systems ◽  
Climate Impact ◽  
Bioenergy Production ◽  
Over Time
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