Calculation determination of compensatory capabilities of pipeline routes of ship systems
Journal Title: Вестник МГТУ - Year 2017, Vol 20, Issue 4
Abstract
The paper considers the problem of improving the manufacturability of ship system pipelines at the stage of designing. Some solutions of manufacturing and installation of ship system pipelines without taking dimensions at the place have been presented. During the experimental calculation the purpose and objectives of the experiment have been defined, the plan of experiment has been designed and the necessary initial data have been prepared. The experimental calculation of the compensating capabilities of ship system pipelines in four stages has been made. They are: the choice of routes between two rigidly fixed connections according to the drawing and preparation of data; the determination of the computational domain of compensatory capabilities of traces on the basis of theoretical assumptions within the hypothesis of using pairs of parallel sections of traces to compensate for total deviations; the determination of the fit area with an assigned allowance; the adjustment of drawings by changing the dimensions of the fit areas with allowances. The experimental calculations have confirmed the theoretical predictions of compensatory capabilities of pipelines at the design stage and conceptual basis for compensating for total deviations by moving traces. The algorithm for compensation of pipelines' deviations using the mutually parallel sections with joints of pipes and additional allowances has been developed. Based on the research results prerequisites have been created for developing a methodology for improving the manufacturability of pipelines at the design stage. With regard to more pipelines the opportunity to replace a downhole pipe to an adjustable pipe has been offered, bending of which will be carried out according to project dimensions without clarification in place, contributing to a reduction in the construction of facilities, complex technological systems saturated with pipelines.
Authors and Affiliations
G. V. Ngo, K. N. Sakhno
Keywords
Related Articles
- EP ID EP255620
- DOI 10.21443/1560-9278-2017-20-4-665-672
- Views 81
- Downloads 0
Macroalgae's flora of the Kola Bay (the Barents Sea)
The Kola Bay is the most developed part of the Barents Sea. Benthic phytocenoses of its southern part are well studied, and the Northern ones have almost no modern descriptions. Flora of the Kola Bay has not been revised...
Grey seals: Morphometric parameters of erythrocytes
The first 3–4 months of postnatal ontogenesis of true seals are characterized by the most significant changes in the cellular composition of the blood, which is associated with active processes of formation of bone marro...
Heavy metals Hg, Cd, and Pb in the body of sterlet (Acipenser ruthenus L.), the Lower Irtysh River
For assessing the possibility of using sterlet as a species-bioindicator of heavy metals' contamination in the bottom sediments, a study has been conducted on the distribution and accumulation of these pollutants in the...
The stability of pigments in the thalli and extracts of the Barents Sea fucus algae
Fucus algae of the Barents Sea are a promising source of biologically active substances (BAS), including carotenoid and chlorophyll pigments. The main direction of processing these types of brown algae is aimed at obtain...
Rockburst prevention in deep ore pillars by forming relieve slots (for the Lovozero raremetal deposit)
Lovozero GOK which develops the Lovozero rare metals deposit is the only supplier of raw materials for the rare metal industry in Russia. The depth of mining at the deposit having reached 600 m is gradually increasing an...