Nonlinear Analyses for Design of Piles in Liquefying Soils at Port Facilities

A new reinforcement measure with no-fire operation is presented, which is very suitable for space trusses which are located in gas stations. A finite element model (FEM) is presented with shell elements and multipoint constraint elements. With this FEM, nonlinear analyses are carried out. Analytical results show that integral failure of reinforced pipe is caused by yielding of original pipe inside. So it is not necessary to reinforce original pipe using steel pipe bonded outside with high yield strength. With the increase of length of bonded pipe outside, loading according to elastic stage and ultimate bearing loading increase, it is clear that the length of bonded pipe outside is an important factor which influences the bearing capacity.

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Linear and nonlinear analyses of a wideband gyro-TWT

IEEE Transactions on Electron Devices ◽

10.1109/16.22490 ◽

1989 ◽

Vol 36 (4) ◽

pp. 802-810 ◽

Cited By ~ 8

Author(s):

B.R. Cheo ◽

A. Rekiouak

Keyword(s):

Nonlinear Analyses ◽

Linear And Nonlinear

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THE SAFETY OF TANKERS AND SINGLE POINT MOORING DURING LOADING OPERATIONS

Transport ◽

10.3846/1648-4142.2009.24.54-57 ◽

2009 ◽

Vol 24 (1) ◽

pp. 54-57 ◽

Cited By ~ 4

Author(s):

Vytautas Paulauskas

Keyword(s):

Theoretical Basis ◽

Oil And Gas ◽

Single Point ◽

Offshore Platforms ◽

Port Facilities

Single point mooring (SPM) is used when typical port facilities cannot be applied. Offshore platforms and terminals producing oil and gas are the places where SPM can be employed. Accidents with SPM equipment and ships occurring during loading or unloading operations are very dangerous and may cause serious losses due to the high prices of tankers and facilities and because of polluting the environment with poisonous materials. Any possibilities of decreasing risk and increasing safety are very important. This paper presents the analysis of dangerous situations with tankers and SPM, discusses theoretical basis for study and makes practical calculations and recommendations on decreasing accidence probability during loading operations.

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Nonlinear analysis of the occurrence of hurricanes in the Gulf of Mexico and the Caribbean Sea

Nonlinear Processes in Geophysics ◽

10.5194/npg-25-291-2018 ◽

2018 ◽

Vol 25 (2) ◽

pp. 291-300 ◽

Cited By ~ 1

Author(s):

Berenice Rojo-Garibaldi ◽

David Alberto Salas-de-León ◽

María Adela Monreal-Gómez ◽

Norma Leticia Sánchez-Santillán ◽

David Salas-Monreal

Keyword(s):

Time Series ◽

Gulf Of Mexico ◽

Nonlinear Analysis ◽

Chaotic Behavior ◽

Caribbean Sea ◽

Historical Record ◽

Nonlinear Analyses ◽

The North ◽

The Caribbean ◽

The Individual

Abstract. Hurricanes are complex systems that carry large amounts of energy. Their impact often produces natural disasters involving the loss of human lives and materials, such as infrastructure, valued at billions of US dollars. However, not everything about hurricanes is negative, as hurricanes are the main source of rainwater for the regions where they develop. This study shows a nonlinear analysis of the time series of the occurrence of hurricanes in the Gulf of Mexico and the Caribbean Sea obtained from 1749 to 2012. The construction of the hurricane time series was carried out based on the hurricane database of the North Atlantic basin hurricane database (HURDAT) and the published historical information. The hurricane time series provides a unique historical record on information about ocean–atmosphere interactions. The Lyapunov exponent indicated that the system presented chaotic dynamics, and the spectral analysis and nonlinear analyses of the time series of the hurricanes showed chaotic edge behavior. One possible explanation for this chaotic edge is the individual chaotic behavior of hurricanes, either by category or individually regardless of their category and their behavior on a regular basis.

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