International Journal for Simulation and Multidisciplinary Design Optimization最新文献_第7页

Optimization of milling speed and time in mechanical alloying of ferritic ODS steel through taguchi technique 田口法优化铁素体ODS钢机械合金化的铣削速度和时间

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2021-01-01 DOI: 10.1051/smdo/2021029

Ganesan Dharmalingam, M. A. Prasad, S. Salunkhe

{"title":"Optimization of milling speed and time in mechanical alloying of ferritic ODS steel through taguchi technique","authors":"Ganesan Dharmalingam, M. A. Prasad, S. Salunkhe","doi":"10.1051/smdo/2021029","DOIUrl":"https://doi.org/10.1051/smdo/2021029","url":null,"abstract":"The oxide dispersion strengthened (ODS) ferritic steels are one of the most important in fuel cladding materials for 4th Generation nuclear reactors because of their excellent mechanical properties such as irradiation resistance, swelling resistance, and elevated temperature tensile/compressive strength. Mechanical alloying (MA) is one of the most promising routes for developing nanocrystalline ferritic ODS steel materials. For the production of nanocrystalline ferritic ODS steel powders, the most influencing factor is the milling speed and milling time during the mechanical alloying process. With the improper selection of milling time and speed, the final milled powders become an amorphous structure consisting of high impurity inclusions in the microstructure, and strength was also affected. In order to overcome these drawbacks, the present investigation was taken into account for the selection of appropriate mechanical milling speed and time, which was optimized through Taguchi analysis followed by the MA process. The optimized mechanical milling speed and time of milled powders were characterized through X-Ray Diffraction Analysis (XRD) and Scanning Electron Microscope (SEM).","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Optimization of UAV structure and evaluation of vibrational and fatigue characteristics through simulation studies 基于仿真研究的无人机结构优化与振动疲劳特性评估

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2021-01-01 DOI: 10.1051/smdo/2021020

Ashraf Mahmud Rayed, B. Esakki, A. Ponnambalam, S. C. Banik, Karim Aly

{"title":"Optimization of UAV structure and evaluation of vibrational and fatigue characteristics through simulation studies","authors":"Ashraf Mahmud Rayed, B. Esakki, A. Ponnambalam, S. C. Banik, Karim Aly","doi":"10.1051/smdo/2021020","DOIUrl":"https://doi.org/10.1051/smdo/2021020","url":null,"abstract":"Unmanned Aerial Vehicles (UAV) is generic air vehicles that are significantly developed for military and civil purposes. In recent times, advancements in the field of UAVs are exceptional and tremendous. Nevertheless, numerous researches have been performed mainly to reduce the weight of the UAV structure. The flight time and allowable payload rely on the UAV structure's weight, which is considered a significant factor. Hence, in this paper, the UAV model's static structural behavior is cultivated utilizing the morals of Finite Element Analysis (FEA) to determine the total deformation and Von-mises stress. Three different polymer materials, namely Poly Lactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), and Polyamide (PA), are chosen for FEA analysis of 3D printed UAV structure. The thrust generated from the motors varies from 2 kg to 5 kg, and an evaluation of structural strength characteristics is performed. The FEA study has shown that maximum deformation and maximum stress are obtained at the propeller casings and the basement of the structure, respectively. After comparing the details on deformation and stress from all three materials, the research also reveals that PLA is the best material for conception. Furthermore, topological optimization is performed on the UAV structure to reduce mass and minimize stress without compromising mechanical strength. The vibrational and fatigue characteristics of optimized UAV structure is examined. The unified body of the UAV frame will reduce the assembly time and make manufacturing much more effortless.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58004528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and analysis of disc brake system in high speed vehicles 高速车辆盘式制动系统的设计与分析

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2021-01-01 DOI: 10.1051/SMDO/2021019

Anil Babu Seelam, Nabil Hussain, S. Krishanmurthy

{"title":"Design and analysis of disc brake system in high speed vehicles","authors":"Anil Babu Seelam, Nabil Hussain, S. Krishanmurthy","doi":"10.1051/SMDO/2021019","DOIUrl":"https://doi.org/10.1051/SMDO/2021019","url":null,"abstract":"Brakes are the most important component of any automobile. Brakes provide the ability to reduce or bring automobile to a complete stop. The process of braking is usually achieved by applying pressure to the brake discs. The main objective of this research paper is to propose an appropriate design and to perform analysis of a suitable brake rotor to enhance the performance of the high-speed car. The design of the brake disc is modelled using Solid works and the analysis is carried out using Ansys software. The analysis has been conducted by considering stainless steel and grey cast iron using same brake rotor design so that optimal choice of brake disc can be considered. The analysis considered involves static structural analysis and steady state thermal analysis considering specific parameters on brake rotor to increase the life of brake rotor. From the analysis it is found that the performance and life of disc brake depends upon heat dissipation. From the analysis results it can be concluded that grey cast iron has performed better as compared to stainless steel as this material has anti-fade properties which improves the life of the brake rotor.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58004912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Computer graphics and visual computing use cases for Industry 4.0 and Operator 4.0 工业4.0和操作员4.0的计算机图形和视觉计算用例

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2021-01-01 DOI: 10.1051/smdo/2021026

J. Posada, I. Barandiaran, Jairo R. Sánchez, Daniel Mejia-Parra, A. Moreno, M. Ojer, O. Ruiz-Salguero

{"title":"Computer graphics and visual computing use cases for Industry 4.0 and Operator 4.0","authors":"J. Posada, I. Barandiaran, Jairo R. Sánchez, Daniel Mejia-Parra, A. Moreno, M. Ojer, O. Ruiz-Salguero","doi":"10.1051/smdo/2021026","DOIUrl":"https://doi.org/10.1051/smdo/2021026","url":null,"abstract":"In the context of smart manufacturing, the concept of Visual Computing is a key enabling technology for Industry 4.0. Visual Computing and Physically-based simulation enables the implementation of interactive, visual and (in most cases) non-disruptive solutions within the context of (a) the production process (off-line or in-line) the shop floor, (b) the interaction with customers and clients in the whole value chain, and/or (c) the product-service schemas. Technologies such as Industrial Big Data, Human-Robot Collaboration, IIOT & 5G, Cybersecurity, Cyber-Physical Systems, Semantic Technologies, Visual Computing and other related technologies have a strong impact in the new ways smart manufacturing is reconfiguring the production. This article presents a theoretical framework for the incorporation of Visual Computing and Physically-based Simulation technologies to Industry 4.0 and Operator 4.0 scenarios. This framework has been already implemented and supports different smart manufacturing scenarios, already running in many SME. Three practical study case scenarios (already deployed into SMEs) are presented and discussed.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ant colony optimization with semi random initialization for nurse rostering problem 护士值勤问题的半随机初始化蚁群优化

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2021-01-01 DOI: 10.1051/smdo/2021030

Said Achmad, Antoni Wibowo, Diana Diana

{"title":"Ant colony optimization with semi random initialization for nurse rostering problem","authors":"Said Achmad, Antoni Wibowo, Diana Diana","doi":"10.1051/smdo/2021030","DOIUrl":"https://doi.org/10.1051/smdo/2021030","url":null,"abstract":"A nurse rostering problem is an NP-Hard problem that is difficult to solve during the complexity of the problem. Since good scheduling is the schedule that fulfilled the hard constraint and minimizes the violation of soft constraint, a lot of approaches is implemented to improve the quality of the schedule. This research proposed an improvement on ant colony optimization with semi-random initialization for nurse rostering problems. Semi-random initialization is applied to avoid violation of the hard constraint, and then the violation of soft constraint will be minimized using ant colony optimization. Semi-random initialization will improve the construction solution phase by assigning nurses directly to the shift that is related to the hard constraint, so the violation of hard constraint will be avoided from the beginning part. The scheduling process will complete by pheromone value by giving weight to the rest available shift during the ant colony optimization process. This proposed method is tested using a real-world problem taken from St. General Hospital Elisabeth. The objective function is formulated to minimize the violation of the constraints and balance nurse workload. The performance of the proposed method is examined by using different dimension problems, with the same number of ant and iteration. The proposed method is also compared to conventional ant colony optimization and genetic algorithm for performance comparison. The experiment result shows that the proposed method performs better with small to medium dimension problems. The semi-random initialization is a success to avoid violation of the hard constraint and minimize the objective value by about 24%. The proposed method gets the lowest objective value with 0,76 compared to conventional ant colony optimization with 124 and genetic algorithm with 1.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A comparative study of three new parallel models based on the PSO algorithm 基于粒子群算法的三种新型并行模型的比较研究

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2020-12-01 DOI: 10.1051/smdo/2019022

M. Zemzami, Norelislam El Hami, M. Itmi, N. Hmina

引用次数: 4

The frame optimization and validation of resistance spot welding gun 电阻点焊焊枪的结构优化与验证

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2020-09-01 DOI: 10.1051/smdo/2020016

Ji Hong, Kwang-Hee Lee, Chul-Hee Lee

{"title":"The frame optimization and validation of resistance spot welding gun","authors":"Ji Hong, Kwang-Hee Lee, Chul-Hee Lee","doi":"10.1051/smdo/2020016","DOIUrl":"https://doi.org/10.1051/smdo/2020016","url":null,"abstract":"Resistance spot welding gun is generally used to bond parts in the automotive and consumer electronics industries. In the automotive industry, chassis assembly operations use resistance spot welding. High production speeds allow for mass production and automation, resulting in diverse uses of resistance spot welding. To automate the welding process, it is mounted on a multi-joint robot and the welding gun is designed considering the specifications of the robot. High-strength structural design is needed to prevent deformation during pressurization, but the weight of the weld gun affects the efficiency of the robot. For this reason, it is necessary to design a welding gun with high stiffness and light weight. In this study, the analysis is carried out to measure the stress and deformation amount of weld gun. Optimization for weight reduction is performed by genetic algorithm method and topology optimization. The optimization of the resistance spot weld gun frame is performed, and the optimized model is verified through experimental verification. The production cost of industry has been reduced through the high stiffness and light weight of welding gun.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44990111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Agent-based modelling and simulation for ship unloading processes: determining the number of trucks and container cranes 船舶卸载过程基于智能体的建模与仿真:确定卡车和集装箱起重机的数量

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2020-06-01 DOI: 10.1051/smdo/2020009

F. Ramadhan, A. Imran, A. F. Rizana, Liane Okdinawati

引用次数: 1

Influence of geometric variables on spur gear volume 几何变量对正齿轮体积的影响

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2020-05-01 DOI: 10.1051/smdo/2020003

Edmund S. Maputi, R. Arora

引用次数: 0

Optimality and duality for nonsmooth semi-infinite E-convex multi-objective programming with support functions 具有支持函数的非光滑半无限E-凸多目标规划的最优性和对偶性

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2020-01-11 DOI: 10.1051/smdo/2020011

Tarek Emam

引用次数: 1