Vessel Mooring Analysis and Ignition Range Dispersion Analysis for LNG Jetty Facilities

Oktaviani Turbaningsih; Nita Yuanita

doi:10.11113/jt.v69.3284

Vessel Mooring Analysis and Ignition Range Dispersion Analysis for LNG Jetty Facilities

Jurnal Teknologi ◽

10.11113/jt.v69.3284 ◽

2014 ◽

Vol 69 (7) ◽

Author(s):

Oktaviani Turbaningsih ◽

Nita Yuanita

Keyword(s):

Critical Issue ◽

Dispersion Analysis ◽

Mooring Lines ◽

Bathymetric Survey ◽

Port Facilities ◽

Vapor Dispersion

The LNG jetty is facilities (forming part of the terminal) for the berthing and unloading of LNGC, including all shore-side discharging arms and docking facilities.The criteria design to build new LNG based on some aspect such as the result of bathymetric survey, the tanker or other vessel, port facilities, mooring layout, and also catastrophic accident such as LNG vapor dispersion. One of the critical issue on the LNG Jetty design is the configuration of mooring vessel, that should be analyzed before vessel need to berth on jetty. Mooring are provided to prevent vessel from drifting away from a berth. It is assumed that the wave motions are unaffected by the stiffness of the mooring lines and fenders.

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PRAIA DA VITORIA HARBOUR (AZORES) DAMAGES IN THE BREAKWATER DUE TO THE STORM OF 26th - 27th DECEMBER, 1962

Coastal Engineering Proceedings ◽

10.9753/icce.v9.36 ◽

1964 ◽

Vol 1 (9) ◽

pp. 36

Author(s):

Jose Joaquim Reis De Carvalho

Keyword(s):

Liquid Fuels ◽

Eastern Coast ◽

Mooring Lines ◽

Central Group ◽

Espírito Santo ◽

Azores Islands ◽

Port Facilities ◽

Rubble Mound ◽

Espirito Santo ◽

North Latitude

Praia da Vitoria is a harbour in the eastern coast of Ter ceira, in Azores Islands. These lie in the Nortern Atlantic,bet ween 36 55' and 39 1+3' north latitude and between 26 1+6'and 31 16' west of Greenwich longitude. Terceira island belongs to the central group of islands (fig.l). The port facilities in Praia da Vitoria harbour were con - structed with the main purpose of enabling the unloading of liquid fuels, however intense the swell at the entrance of the harbour. The maritime structures include a rubble mound breakwa ter about 600 m long, rooted at Ponta do Espirito Santo, and an unloading system, independent from the breakwater and made up of a central hose-handling pier, where tankers can berth, anc dolphins to take the mooring lines of the ships. The hose-han - dling platform and the dolphins are connected with one another and with the shore by means of footbridges (figs. 1 and 3).

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High-Fidelity Modelling of Floating Offshore Wind Turbine Platforms

Volume 9: Ocean Renewable Energy ◽

10.1115/omae2020-18913 ◽

2020 ◽

Author(s):

Simon Burmester ◽

Guilherme Vaz ◽

Ould el Moctar ◽

Sebastien Gueydon ◽

Arjen Koop ◽

...

Keyword(s):

Skin Friction ◽

Critical Issue ◽

Offshore Wind ◽

Wave Radiation ◽

Offshore Wind Turbine ◽

Mooring Lines ◽

Hydrodynamic Damping ◽

Floating Offshore Wind Turbines ◽

Strong Winds ◽

Lift And Drag

Abstract There are already several examples of commercially operating floating offshore wind turbines (FOWTs) delivering electricity to the grid. These devices operate usually in harsh environments due to high waves, strong winds and currents. Guaranteeing the survivability of these complex and expensive constructions is crucial but not straightforward, and this may be partially controlled by the associated hydrodynamic damping. FOWT structures are still designed and analysed using potential-flow and empirical tools. However, nowadays, almost all fields of maritime problems are seeing an increased use of higher-fidelity viscous-flow tools (CFD, or Computational Fluid Dynamics), due to its increased modelling accuracy. Therefore, in this work, a FOWT is analysed in detail using CFD with emphasis on the hydrodynamic damping. This damping arises due to wave radiation, skin friction, eddy making and lift, and drag of the mooring lines. The CFD associated turbulence model influences largely the eddy making and skin friction components of the damping. Moorings are also a critical issue when assessing the damping of a floater. Catenary moorings are towed along with the motion of the floater and induce loads (drag and inertia) on the lines, effects which cannot be represented by static or quasi-static approaches. And numerical errors, often neglected or not quantified, can influence all the previous aspects and the final accurate prediction of the structure damping. In this paper, all these aspects are investigated by performing CFD decay tests, and their contribution quantified in terms of linear and quadratic damping components. The following issues were found to have a major contribution to the hydrodynamic damping and consequently on the motions of the platform: numerical discretisation (temporal and spatial), Reynolds number, free surface, turbulence and accurate mooring modelling.

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A Research on Tension Determination and Morphological Simulation Model of Mooring Lines

ICTIS 2013 ◽

10.1061/9780784413036.298 ◽

2013 ◽

Author(s):

Shengli Li ◽

Zhengwei He ◽

Jia Shi ◽

Youqin Zheng ◽

Xiaoqiao Geng ◽

...

Keyword(s):

Simulation Model ◽

Mooring Lines

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The influence of osteopathic correction on the rate of various rhythms of the body

Russian Osteopathic Journal ◽

10.32885/2220-0975-2019-1-2-64-71 ◽

2019 ◽

pp. 64-71 ◽

Cited By ~ 1

Author(s):

A. E. Chernikova ◽

Yu. P. Potekhina

Keyword(s):

Heart Rate ◽

Respiratory Rate ◽

Age Groups ◽

Biomechanical Properties ◽

Dispersion Analysis ◽

The Body ◽

Body Tissues ◽

Age Related ◽

Significant Difference ◽

Before And After

Introduction. An osteopathic examination determines the rate, the amplitude and the strength of the main rhythms (cardiac, respiratory and cranial). However, there are relatively few studies in the available literature dedicated to the influence of osteopathic correction (OC) on the characteristics of these rhythms.Goal of research — to study the influence of OC on the rate characteristics of various rhythms of the human body.Materials and methods. 88 adult osteopathic patients aged from 18 to 81 years were examined, among them 30 men and 58 women. All patients received general osteopathic examination. The rate of the cranial rhythm (RCR), respiratory rate (RR) heart rate (HR), the mobility of the nervous processes (MNP) and the connective tissue mobility (CTM) were assessed before and after the OC session.Results. Since age varied greatly in the examined group, a correlation analysis of age-related changes of the assessed rhythms was carried out. Only the CTM correlated with age (r=–0,28; p<0,05) in a statistically significant way. The rank dispersion analysis of Kruskal–Wallis also showed statistically significant difference in this indicator in different age groups (p=0,043). With the increase of years, the CTM decreases gradually. After the OC, the CTM, increased in a statistically significant way (p<0,0001). The RCR varied from 5 to 12 cycles/min in the examined group, which corresponded to the norm. After the OC, the RCR has increased in a statistically significant way (p<0,0001), the MNP has also increased (p<0,0001). The initial heart rate in the subjects varied from 56 to 94 beats/min, and in 15 % it exceeded the norm. After the OC the heart rate corresponded to the norm in all patients. The heart rate and the respiratory rate significantly decreased after the OC (р<0,0001).Conclusion. The described biorhythm changes after the OC session may be indicative of the improvement of the nervous regulation, of the normalization of the autonomic balance, of the improvement of the biomechanical properties of body tissues and of the increase of their mobility. The assessed parameters can be measured quickly without any additional equipment and can be used in order to study the results of the OC.

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On Girard

Bulletin for the Study of Religion ◽

10.1558/bsor.v45i3-4.31351 ◽

2016 ◽

Vol 45 (3-4) ◽

pp. 59-65

Author(s):

Mark Juergensmeyer

Keyword(s):

Driving Force ◽

Critical Issue ◽

Religious Violence ◽

Symbolic Violence ◽

Acting Out ◽

Mimetic Desire ◽

The World ◽

Violent Acts

Much of what Freud and Girard have said about the function of symbolic violence in religion has been persuasive. Even if one questions, as I do, Girard’s idea that mimetic desire is the sole driving force behind symbols of religious violence, one can still agree that mimesis is a significant factor. One can also agree with the theme that Girard borrows from Freud, that the ritualized acting out of violent acts plays a role in displacing feelings of aggression, thereby allowing the world to be a more peaceful place in which to live. But the critical issue remains as to whether sacrifice should be regarded as the context for viewing all other forms of religious violence, as Girard and Freud have contended.

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Patient satisfaction and comfort after a full-arch immediate loaded prosthesis

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-19-00274 ◽

2020 ◽

Author(s):

Elena Dellepiane ◽

Francesco Pera ◽

Paola Zunino ◽

Maria Grazia Mugno ◽

Paolo Pesce ◽

...

Keyword(s):

Quality Of Life ◽

Oral Health ◽

Intermediate Phase ◽

Critical Issue ◽

Health Impact ◽

Immediate Loading ◽

Oral Rehabilitation ◽

Masticatory Ability ◽

Chewing Ability

The aim of this study was to assess oral health related quality of life (OHRQoL) of patients before, during and after completion of implant-supported full-arch immediate loading rehabilitation according to the Columbus Bridge Protocol (CBP). 25 patients with compromised dentition were rehabilitated according to the CBP and were assessed for OHRQoL using 4 questionnaires specifically realized for this study and inspired to the OHIP (Oral Health Impact Profile) questionnaire. Patients assessed themselves before surgery, during the healing period (1 week and 2 months after surgery) and after definitive prosthodontic treatment (4 months after surgery). The questionnaires specifically investigated patients’ pain, confort, home oral hygiene habits, satisfaction related to esthetics, masticatory ability, phonetics and general satisfaction toward the treatment.Patients reported an improvement of OHRQoL after full-arch immediate loading rehabilitation. A statistically significant improvement in aesthetic and chewing ability was found. After 4 months 92% of the patients did not feel tense with their smile, 96% did not show problems to relate with other people or smiling, 92% did not show difficulty to eat some foods. Phonetics was found to be a critical issue, especially in the intermediate phase of healing. One week after surgery the percentage of patients who was very satisfied with phonetics slightly decreased from 48% to 36%. The assessment of patients' OHRQoL related to full-arch immediate loading implant therapy exhibited a significant improvement of their quality of life. The questionnaires herein presented could be an effective tool to evaluate patients' reaction to oral rehabilitation.

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