scholarly journals Structural Dimensioning of an Equipment to Sinter Refuse of Recycled PET

2021 ◽  
Vol 31 (2) ◽  
pp. 61-73
Author(s):  
Gabriel Angelo Santos Mendes ◽  
Alexandre Scari
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Open Source Software ◽  
Hydraulic System ◽  
Recycling Process ◽  
Element Analysis ◽  
Recycled Pet ◽  
Structural Modifications ◽  
Design Requirements ◽  
Commercial Applications

The consumption of polyethylene terephthalate (PET) has been increasing every year, as well as its recycling process as the applications of recycled PET are diversified. However, the recycling companies are not able to recycle 100% of PET because the particles with low granulometry (refuse) are not utilized because they stick to the extruder screw and are discarded. This study presents the structural dimensioning of a proposal of an equipment to sinter this refuse in some predetermined geometries, in order to achieve possible commercial applications. This structural dimensioning was done with finite element analysis open-source software Salome Meca. Some structural modifications required to achieve the design requirements are presented. Yet, the hydraulic system to operate the compression was also dimensioned.

Standardized Foundations Database for Combat Systems

2014 ◽  
Author(s):  
M. Harbison ◽  
W. Koon ◽  
V. Smith ◽  
P. Haymon ◽  
D. Niole ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cost Savings ◽  
Ship Design ◽  
Separate Analysis ◽  
Element Analysis ◽  
Weapon Systems ◽  
System Requirements ◽  
Design Requirements ◽  
The Cost

As a result of enhanced performance and mission requirements for Navy ships, ship design has dramatically increased the use of higher strength, lightweight steels and various local reinforcements, e.g., deck inserts, ring stiffeners, etc., in foundation designs to satisfy the design requirements for supporting machinery, consoles, and weapon systems among others. In additional to operational loading requirements, most of these foundations must also be designed to satisfy shock, vibration and other combat system requirements. While the same piece of equipment may be used in other ship contracts, the foundations are uniquely designed and require a separate analysis and drawing package. Computer modeling and Finite Element Analysis (FEA) have helped reduce the labor required to analyze foundations, but the high number of “unique” foundations as well as changes which necessitate a new analysis still create a large workload for engineers. This is further compounded by increased costs in production due to greater numbers of unique parts and materials that must be marked, stored, and retrieved later for fabrication. This goal of this project was to determine the cost-savings potential of leveraging past foundations work in designing, analyzing, and drawing foundations in the future. By the project’s conclusion Ingalls will have created a database for rapid access to previously-generated foundation information, the framework of which will be publicly available for all shipyards to populate with their own foundation information.

Estimation of Spring-Back of Single Torus Inner Vessel Sector by Finite Element Analysis

2016 ◽  
Vol 852 ◽  
pp. 588-594
Author(s):  
Gagan Gupta ◽  
V. Balasubramaniyan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Technology Development ◽  
Cold Pool ◽  
Spring Back ◽  
Element Analysis ◽  
Finite Element Software ◽  
Reactor Assembly ◽  
Design Requirements ◽  
Inner Vessel

Inner vessel in reactor assembly of sodium cooled fast reactor separates hot and cold pool sodium. The shape of inner vessel is optimized with reduced upper & lower shell diameters and toroidal redan for future Fast Breeder Reactor (FBR). This results in higher buckling strength and reduced thickness and hence reduced weight. To achieve the intricate toroidal shape with specified dimensional tolerances, a comprehensive technology development exercise was carried out successfully for the manufacture of inner vessel 30° sector. The achieved profile of the redan meets the specified dimensions and other design requirements. Spring-back observed in the sector was small. To verify the developmental exercise results, a finite element analysis (FEA) of forming of inner vessel sector was performed on finite element software ABAQUS. In this paper, FEA results and spring back are discussed. Spring back assessed is maximum at the center and relatively lower towards the edges for the redan with the chosen radius of 5980 mm.

A Non-Through Silicon Via 1000+ IO Package On Package Solution For Wide IO Applications

2013 ◽  
Vol 2013 (1) ◽  
pp. 000094-000099 ◽  
Author(s):  
Laura Mirkarimi ◽  
Rajesh Katkar ◽  
Ron Zhang ◽  
Rey Co ◽  
Zhijun Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Optimization ◽  
High Yield ◽  
Element Analysis ◽  
Package Design ◽  
Simulation Methodology ◽  
Structural Modifications ◽  
Simulation Tools ◽  
Large Bandwidth

We are developing a new solution for wide I/O package on package applications, which is Bond Via Array (BVA) technology. The prototype vehicle built in this study has 1020 I/O's at a pitch of 0.24 mm with a high aspect ratio of approximately 10:1 and is ≤1.4 mm tall. PoP applications require large bandwidth and thinner packages challenging package developers to address warpage control for high yield processes. The design optimization of this package was established through rigorous finite element analysis of materials selection and structural modifications. The simulation methodology was validated by measuring the warpage as a function of temperature for the experimental prototypes. The details for the simulation and verification processes for the wide I/O process will be discussed. The variation between finite element analysis predictions and the experimental builds was ~10%, which allowed us to complete package design optimization with our simulation tools. The prototype build includes a standard and a low CTE substrate.

Finite Element Analysis of 6-Wing Synchronous Rotor in the Mixing Process

2012 ◽  
Vol 271-272 ◽  
pp. 1291-1295
Author(s):  
Cai Jun Liu
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Analysis ◽  
Mixing Process ◽  
Element Analysis ◽  
Strain Stress ◽  
Design Requirements ◽  
Element Method

By use of finite element method to analyze the strength of 6-wing synchronous rotor, and illustrate the change of parameters regarding strain, stress and displacement etc. so as to visually see whether the designed rotor will reach the design requirements; meanwhile, through structural analysis, to provide guidance for the further optimization of designing for 6-wing synchronous rotor.

Design and Finite Element Analysis of Corrugated Plate Boarding Bridge

2010 ◽  
Vol 97-101 ◽  
pp. 3727-3730
Author(s):  
Wen Hui Wei ◽  
Yan Zhu
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Analysis Software ◽  
Element Analysis ◽  
Design Requirements ◽  
Strength And Stiffness ◽  
Stress And Deformation ◽  
Element Method

With ANSYS finite element analysis software, finite element method is used to analyze the steel corrugated plate boarding bridge. Stress and deformation of the structure are obtained, and strength and stiffness are checked. Improvements are made on this basis to meet the design requirements.

Some Recent Developments in Pressure Vessel Design by Analysis

1994 ◽  
Vol 208 (1) ◽  
pp. 23-29 ◽  
Author(s):  
D Mackenzie ◽  
J T Boyle ◽  
J Spence
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Limit Analysis ◽  
Pressure Vessel ◽  
Significant Problem ◽  
Code Design ◽  
Element Analysis ◽  
Stress Classification ◽  
Recent Developments ◽  
Design Requirements

Stress classification is a significant problem in pressure vessel design by analysis, especially if the design is based on solid finite element analysis. Stress categorization may be circumvented if the design is based on elastic-plastic or limit analysis but the degree of difficulty commonly associated with these types of analysis makes this approach unattractive to many designers. In this paper, a brief survey of a number of recent developments in pressure vessel design by analysis is discussed and assessed in light of Code design requirements.

Structural Modification of Disc Brake Judder Using Finite Element Analysis

2012 ◽  
Vol 165 ◽  
pp. 68-72
Author(s):  
Matthias Edric Bengsoon ◽  
Abd Rahim Abu Bakar ◽  
Mohd Kameil Abdul Hamid
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Modification ◽  
Brake Disc ◽  
Disc Brake ◽  
Baseline Model ◽  
Element Analysis ◽  
Structural Modifications ◽  
Long Period ◽  
Commercial Software Package

Brake judder is a phenomenon of noise which its vibration can be felt physically by the driver of a vehicle. If this vibration is exposed to the driver for a long period it can lead to tiredness during driving. There are two types of judder which is cold judder and hot judder. This paper will be focusing on the hot judder. As a disc surface heats up during braking it causes both sides of the disc distort and hence produce a sinusoidal waviness around its edges. In this paper finite element analysis of hot judder is performed using a commercial software package, ABAQUS. An existing brake disc design is simulated and will be used as a baseline model. Various structural modifications made on the disc are proposed in an attempt to reduce brake judder in a disc brake assembly.

K-Type, Inverse K-Type and X-Type Legs Stability Analysis of Jack-Up Offshore Platform

2013 ◽  
Vol 312 ◽  
pp. 205-209
Author(s):  
Wen Xian Tang ◽  
Jun Cao ◽  
Jian Zhang ◽  
Chao Gao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Maximum Stress ◽  
Offshore Platform ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Design Requirements ◽  
The Stability ◽  
Jack Up ◽  
Survival Condition

The force situation of truss legs has an important impact on the jack-up offshore platform. The finite element analysis on three types truss leg was made, and the stability of the three types truss leg under preload, operating and storm survival condition was discussed. The result showed that the maximum stress was in the chord; they met the design requirements; K type, inverse K type can save material, and they both met resonance requirements. The former had a better stability under preload condition, and the later had the best stability under operating, storm survival condition.

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