Determination of strength characteristics of 3D model reservoir for LNG by using Ansys Workbench software

2020 ◽  
Keyword(s):  
Mechanical Properties ◽  
Natural Gas ◽  
Software Package ◽  
Axial Load ◽  
3D Model ◽  
Liquefied Natural Gas ◽  
Strength Characteristics ◽  
Expansion Joint ◽  
Ansys Workbench

In this article, we consider a 3D model of a tank for liquefied natural gas (LNG) in the form of an axial corrugated compensator, namely, we analyze the calculated strength characteristics obtained by modeling the axial load in the Ansys Workbench software package. The design was rationalized taking into account the revealed regularities of changes in the mechanical properties of the cryogenic capacity material. Keywords Liquefied natural gas (LNG); small cryogenic cistern (SCC); drainagefree storage; finite element 3D model; bellows expansion joint

scholarly journals Determination of the LNG Bunkering Optimization Method for Ports Based on Geometric Aggregation Score Calculation

2021 ◽  
Vol 9 (10) ◽  
pp. 1116
Author(s):  
Yong-Ung Yu ◽  
Young-Joong Ahn ◽  
Jong-Kwan Kim
Keyword(s):  
Natural Gas ◽  
Evaluation Method ◽  
Optimization Method ◽  
Liquefied Natural Gas ◽  
Economic Feasibility ◽  
International Standards ◽  
International Maritime Organization ◽  
Supply Risk

Owing to stricter environmental regulations of the International Maritime Organization (IMO) 2020, the demand of liquefied natural gas (LNG) bunkering is expected to grow by approximately 15% during 2020–2025 along with increased investments in eco-friendly ships by global shipping companies. Thus, determining optimal methods for LNG bunkering using existing ports that lack LNG bunkering infrastructure is necessary. Here, a method is proposed to determine the optimal LNG bunkering method for existing ports. Analyzing previous studies, we selected four evaluation factors: assessment of LNG supply for ships, suitability of fuel supply, risk of spillage, and domestic and international standards, which were used to calculate a geometric aggregation score via normalization, weight, and aggregation for selecting an appropriate LNG bunkering method. The analytical results indicated that the ship to ship (STS) method, evaluated based on the size and type of ships, is optimal for the Busan port. This is expected to contribute to the competitiveness of ports and their safety and economic feasibility by serving as a basis for determining the optimal LNG bunkering implemented in existing ports. It is necessary to expand the follow-up research to improve the evaluation method by aggregating more improved data through real cases.

Preparation and Mechanical Properties Analysis of Aviation Mechanical Carbon Fiber Reinforced Plastics

2021 ◽  
Vol 871 ◽  
pp. 234-239
Author(s):  
Sheng Li Yan ◽  
Hao Li ◽  
Fei Zhan
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
3D Model ◽  
Element Analysis ◽  
Carbon Fiber Reinforced Plastics ◽  
Reinforced Plastics ◽  
The Finite Element Analysis ◽  
Fiber Reinforced Plastics ◽  
Ansys Workbench

The study aims to explore the preparation of aviation mechanical carbon fiber reinforced plastics (CFRP) and the properties of CFRP composites. Taking the aero box body as an example, the mechanical properties of CFRP are studied. The preparation of CFRP is analyzed by searching the data. CFRP plates are explored according to the stress analysis of composite materials. The finite element analysis software ANSYS Workbench and UG software are adopted to build the 3D model of the aero box body. After adding materials in ANSYS Workbench and simplifying the UG model, the finite element analysis of the model is carried out by computer. The 3D model of the aero box is constructed, the finite element analysis of the aero box is carried out, and the mechanical properties of CFRP are explored. In this study, the possibility of the practical application of CFRP in the aviation box body lightweight is clarified, which gives a direction for the subsequent actual molding and guides the application of CFRP in aviation field.

scholarly journals THE IMPACT OF LIQUEFIED NATURAL GAS COMPOSITION AND TECHNOLOGICAL CHARACTERISTICS OF THE STARTING STORAGE OF THE EQUIPMENT AT THE TIME OF OCCURRENCE OF THE PHENOMENON OF ROLLOVER

2019 ◽  
Vol 46 (1) ◽  
pp. 66-78
Author(s):  
R. A. Khuramshina ◽  
A. I. Yamalov
Keyword(s):  
Mass Transfer ◽  
Natural Gas ◽  
Heat And Mass Transfer ◽  
Software Package ◽  
Gas Storage ◽  
Liquefied Natural Gas ◽  
Ansys Software ◽  
Natural Gas Storage ◽  
The Impact ◽  
Stratified Liquid

Objectives. Ways to prevent the onset of rollover in the liquefied natural gas storage.Method. The article deals with modern methods of mathematical modeling and software when solving problems in a nonlinear formulation. A regulatory analysis of existing methods of LNG transportation has been carried out.Result. Using the mathematical program ANSYS, the rollover process in the liquefied natural gas storage was modeled. In the ANSYS software package, 3d modeling of the process of heat and mass transfer of the stratified liquid in the liquefied natural gas storage was performed. When simulating a rollover phenomenon, the time to its occurrence was 30 minutes, which differs from the experimental value by 1.7%. Based on the results of the calculations, it can be determined that the time to the onset of rollover depends on the concentration of the component layers, on the filling and geometry of the reservoir. These factors lead to an increase in evaporation of liquefied natural gas of 0.04%.Conclusion. The method of numerical experiment allows to determine the distribution of pressure, temperature, density, concentration in the object under study, without resorting to real experiments. The use of the ANSYS software package of computational fluid dynamics in the process of heat and mass transfer of the stratified liquid in the liquefied natural gas storage is necessary when calculating the increased accuracy.

scholarly journals Evaluation of EN AW-5083 aluminum alloy homogeneity using statistical analysis of mechanical properties

2017 ◽  
Vol 53 (3) ◽  
pp. 429-439 ◽  
Author(s):  
N. Dolic ◽  
Zovko Brodarac
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Software Package ◽  
Latin Square ◽  
Direct Chill ◽  
Cast State ◽  
Sampling Position ◽  
5083 Aluminum Alloy ◽  
Statistical Results

In the frame of this investigation, the homogeneity of six (6) ingots of aluminum alloy EN AW-5083 cast by semi-continuous vertical Direct Chill casting (DC) Process was investigated correlating mechanical properties in as-cast and homogenized condition. The investigation followed the static design of the Latin square. Determination of the ultimate tensile strength and elongation across the cross-sectioned sliced at the ingots? fronts and rears in as-cast state revealed differences per cross section of each particular slice. Comparison of obtained differences enabled evaluation of mechanical properties homogeneity of the ingots as a whole. The influence and significance of homogenization was also quantified correlating the mechanical properties results for as-cast and homogenized state at the front and rear position in ingot. The results were processed using the StatSoft? STATISTICA 13.2 software package using charge, slice height and slice width as sources of variability. Comparison of obtained statistical results for both states respectively in respect to the sampling position enabled estimation of homogenization process influence on mechanical properties.

SUBSTANTIATION OF TECHNOLOGICAL MODES OF PROCESSING CRYSTALLIZING METAL BY PRESSURE USING THE PROCAST SOFTWARE PRODUCT

2020 ◽  
Vol 4 (1) ◽  
pp. 22-27
Author(s):  
M.S. DENISOV ◽  
G.A. KOTOV ◽  
S.M. PETUKHOVA
Keyword(s):  
Software Package ◽  
3D Model ◽  
Casting Process ◽  
Hydraulic Press ◽  
Software Product ◽  
Modes Of Processing ◽  
Crystallization Under Pressure ◽  
Simulation Results ◽  
Experimental Values

The possibility of modeling the casting process with crystallization under pressure in the ProCast software package is considered. Simulation results are compared with experimental values. The study of the process is carried out on a horizontal hydraulic press, using technological equipment for the production of cylindrical blanks Ø90× 70 mm. The stages of modeling include a sequence of actions: preparing the geometry of the 3D model of the foundry block; drawing a surface grid using the functions sewn into the program; determination of thermophysical properties and setting boundary conditions. Using solvers, the filling of the mold and the temperature distribution in the mold, taking into account the pouring time, were simulated. In the work, the distribution of macroporosity inside the casting was calculated. Comparing the simulation results and the data obtained experimentally, it is concluded that the ProCast software product is adequate and can be used to solve scientific and applied problems

scholarly journals Experimental Determination of Changing the Axial Force in the Bolts of the Clamping Sleeve Under Its Axial Load

2021 ◽  
Vol 71 (1) ◽  
pp. 79-86
Author(s):  
Hruzík Lukáš ◽  
Struž Jiří ◽  
Kaláb Květoslav
Keyword(s):  
Experimental Determination ◽  
Axial Force ◽  
Axial Load ◽  
Fem Analysis ◽  
Ansys Workbench

Abstract This paper deals about experimental determination of changing the axial load in the bolts of the clamping sleeve under its axial load. Inspiration for this experiment was FEM analysis clamping sleeve in Ansys workbench. Changing of the axial load in the bolts is very important for fatigue of bolt. Bolt force and pretension is necessary for transmit axial load and torque. the change occurs when the sleeve is loaded by the axial force.

scholarly journals APPLICATION OF MODELING IN THE QFORM VX 8.2 SOFTWARE PACKAGE FOR DETERMINATION OF RATIONAL COOLING SPEEDS OF RAILWAY RIMS

2021 ◽  
pp. 17-20
Author(s):  
Oleksandr Babachenko ◽  
Ganna Kononenko ◽  
Evgen Klemeshov ◽  
Rostislav Podolskyi
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cooling Rate ◽  
Physical Meaning ◽  
Structural State ◽  
Software Package ◽  
Data Capture ◽  
Thermokinetic Diagrams ◽  
Test Steel

The tests were performed on ER7 steel according to EN 13262. Based on the hardenability test (GOST 5657) by the method of end hardening (Jomen) the distance from the surface from which unilateral cooling was performed, where the hardness met the requirements of regulatory documentation for wheels of test steel, and the distance where the formation of needle structures, including bainite and otmanshtette, no longer took place. Simulation was applied in the software package QForm VX 8.2, as a result, a model was developed, for the adaptation of which the results of the experiment were used. Confirmed the high convergence of the results of the calculation and the experiment. At the same time, the model allowed to obtain an instantaneous cooling rate in a form that is more in line with the physical meaning of the process and to avoid the scatter of actual values associated with the discreteness of data capture. It is established that the instantaneous cooling rate changes in the process of continuous uniform supply of the cooler. The developed model can be used to build thermokinetic diagrams under continuous cooling and to develop recommendations for heat treatment modes to achieve the specified mechanical properties under a certain structural state.

Sign in / Sign up

Export Citation Format

Share Document