Thermoelasticity problem for solids of revolution with a nonaxisymmetric load over a small-curvature deformation trajectory

1986 ◽  
Vol 22 (7) ◽  
pp. 636-640 ◽  
Author(s):  
V. I. Bobyr'
Keyword(s):  
Thermoelasticity Problem ◽  
Small Curvature ◽  
Curvature Deformation ◽  
Deformation Trajectory ◽  
Nonaxisymmetric Load ◽  
Solids Of Revolution

Axisymmetric thermoelasticity problem for two-temperature hollow cylinder

1978 ◽  
Vol 14 (12) ◽  
pp. 1271-1275
Author(s):  
L. P. Khoroshun ◽  
N. S. Soltanov
Keyword(s):  
Hollow Cylinder ◽  
Thermoelasticity Problem ◽  
Two Temperature

scholarly journals Vortex motion on surfaces of small curvature

2013 ◽  
Vol 339 ◽  
pp. 570-587 ◽  
Author(s):  
Daniele Dorigoni ◽  
Maciej Dunajski ◽  
Nicholas S. Manton
Keyword(s):  
Vortex Motion ◽  
Small Curvature

Spatial deformation of massive nonuniform solids of revolution. Part II

1970 ◽  
Vol 2 (11) ◽  
pp. 1141-1145 ◽  
Author(s):  
S. D. Bobritskaya ◽  
A. L. Kvitka
Keyword(s):  
Spatial Deformation ◽  
Solids Of Revolution

Bending Stiffener Design Through Structural Optimization

2009 ◽  
Author(s):  
Rafael Loureiro Tanaka ◽  
Lauro Massao Yamada da Silveira ◽  
Joa˜o Paulo Zi´lio Novaes ◽  
Eduardo Esterqui de Barros ◽  
Clo´vis de Arruda Martins
Keyword(s):  
Optimization Problem ◽  
Design Procedure ◽  
Complex Task ◽  
Load Case ◽  
Shear Forces ◽  
Design Variables ◽  
Curvilinear Coordinate ◽  
Regular Design ◽  
Curvature Deformation ◽  
Flexible Risers

Bending stiffeners are very important ancillary equipments of umbilicals or flexible risers, since they protect the lines from overbending. Their design however is a complex task, since many load cases must be taken into account; the structure itself has a section that is variable with curvilinear coordinate. To aid the designer in this task, optimization algorithms can be used to automate the search for the best design. In this work an optimization algorithm is applied to the design of the bending stiffener. First, a bending stiffener model is created, which is capable of simulating different load case conditions and provide, as output, results of interest such as maximum curvature, deformation along the stiffener, shear forces and so on. Then, a bending stiffener design procedure is written as an optimization problem and, for that, objective function, restrictions and design variables defined. Study cases were performed, comparing a regular design with its optimized counterpart, under varying conditions.

Long-term results of pyloroplasty

1934 ◽  
Vol 30 (7-8) ◽  
pp. 720-726
Author(s):  
D. S. Klebanov
Keyword(s):  
Operative Treatment ◽  
Central Point ◽  
Long Term Results ◽  
Small Curvature ◽  
Therapeutic Method ◽  
Theoretical Substantiation

The theoretical substantiation of pyloroplasty as a therapeutic method in adults is based on the provisions, which are still very problematic today. Russian authors (Breitsev, Grekov et al.), who first proposed this operation in adults, set indications for this kind of intervention very broadly and considered it indicated not only for pylorospasm without visible ulcer, but also for ulcers of the small curvature and for ulcers of the 12th bowel. At the same time these authors proceeded from the position that pylorospasm is the central point in the pathogenesis and course of ulcers and they considered its elimination to be very important in the operative treatment of ulcers.

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