International Journal for Simulation and Multidisciplinary Design Optimization最新文献_第2页

Topology optimization of engine bracket arm using BESO 基于BESO的发动机托架臂拓扑优化

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2023-01-01 DOI: 10.1051/smdo/2023003

S. Srivastava, S. Salunkhe, S. Pande

{"title":"Topology optimization of engine bracket arm using BESO","authors":"S. Srivastava, S. Salunkhe, S. Pande","doi":"10.1051/smdo/2023003","DOIUrl":"https://doi.org/10.1051/smdo/2023003","url":null,"abstract":"An engine bracket is one of the most critical components of the engine used for mounting and supporting the engine in the vehicles. Today, the automobile industry requires lightweight components, which will reduce the car's overall weight when fitted into the vehicle. Topology optimization is a technique with the help of which the surface of a component is optimized to get the required shape for having reduced weight. The weight is reduced by optimizing the material on the surface of the details. In this paper, the work done is the application of topology optimization on the surface of the engine bracket arm. Then the optimized model is tested computationally using realistic conditions. Bi-directional evolutionary structural optimization is used as a technique for topology optimization. With the help of the BESO method, the material optimization is done, and then the weights are compared with the original component. A new algorithm is developed using MATLAB codes. The sensitivity ratio is considered using the von Mises strength as a critical parameter for the BESO method for optimization. The optimized bracket model is then assembled with the hub of the component, and then the assembly is simulated for verification using standard conditions. A comparison of weight reduction is there using topology optimization.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58006506","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

Optimal path finding in 3D environment: Application for the exhibition space through 3D visualization and BIM 三维环境下的最优寻径:通过三维可视化和BIM在展览空间中的应用

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2023-01-01 DOI: 10.1051/smdo/2023008

Yimin Song

{"title":"Optimal path finding in 3D environment: Application for the exhibition space through 3D visualization and BIM","authors":"Yimin Song","doi":"10.1051/smdo/2023008","DOIUrl":"https://doi.org/10.1051/smdo/2023008","url":null,"abstract":"The application of 3D visualization technology in building construction has also increased. The study used Revit software to construct a 3D building information model (BIM) for the exhibition space of Chuzhou Higher Education City Development Collaborative Innovation Center to achieve a 3D visualization display; based on the 3D visualization, a particle swarm optimization (PSO) algorithm was used to find the optimal path for the exhibition space, so as to achieve the layout design of the exhibition space. The PSO algorithm was optimized in terms of inertia weight, acceleration coefficient, and initial population to obtain the improved PSO (IPSO) algorithm. The experimental results showed that the optimal path found by the IPSO algorithm was 78.56 meters in distance, 98.2 seconds in time consumption, and 50.11% in smoothness, which were better than the other two algorithms. Meanwhile, the IPSO algorithm had a lower value of particle fitness function, indicating that the IPSO algorithm had the highest performance and the strongest path finding ability among the three algorithms. It is confirmed that it is feasible to use the IPSO algorithm for optimal visit path finding in 3D environment. It is effective to visualize the exhibition space in 3D by constructing a BIM.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58007062","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

Analysis of microchannel heat exchanger based on channel geometry 基于通道几何的微通道换热器分析

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2022003

Mohammed Faris Tahasildar, S. Krishanmurthy

{"title":"Analysis of microchannel heat exchanger based on channel geometry","authors":"Mohammed Faris Tahasildar, S. Krishanmurthy","doi":"10.1051/smdo/2022003","DOIUrl":"https://doi.org/10.1051/smdo/2022003","url":null,"abstract":"The use of air conditioning in heating ventilating and air-conditioning (HVAC) industry has risen steadily over the last few decades. The goal of the system is to provide a comfortable indoor environment by the process of removal or addition of heat. There are various systems and components which have been in constant use over the years and have evolved with the needs of the user and the environment too. In this research paper attempt have been made to study microchannel heat exchangers in condenser section of package units. The idea is to see how an increase in cross-sectional area through the microchannel increases the area of heat transfer. The effect of grooved cross-section which results in increase of rate of cooling for a fluid flowing through the channel have been studied. R-32 (Freon Refrigerant) is considered as refrigerant along with water for the study using CFD analysis. Two designs were considered for the study considering circular cross section and the grooved cross section considering the channel geometry. From the results of CFD analysis, it can be stated that grooved cross section has performed better in terms of heat transfer and temperature drop as compared to circular cross section.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005582","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

Optimization of the impact measurement of market structure on liquidity and volatility 市场结构对流动性和波动性影响测度的优化

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2021040

Sara Rhouas, Mustapha Bouchekourte, Norelislam El Hami

{"title":"Optimization of the impact measurement of market structure on liquidity and volatility","authors":"Sara Rhouas, Mustapha Bouchekourte, Norelislam El Hami","doi":"10.1051/smdo/2021040","DOIUrl":"https://doi.org/10.1051/smdo/2021040","url":null,"abstract":"Liquidity and volatility are the two barometers that allow stock markets to appreciate in terms of attractiveness, profitability and efficiency. Several macroeconomic and microstructure variables condition the level of liquidity that directly impact the asset allocation decisions of different investor profiles − institutional and individuals − and therefore the dynamics of the market as a whole. Volatility is the regulatory component that provides information on the level of risk that characterizes the market. Thus, the appreciation of these two elements is of considerable help to fund managers looking to optimize their equity pockets. In this work, we will use the liquidity ratio as a proxy variable for the liquidity of the Moroccan stock market, to estimate the indicators and factors that determine its short- and long-term variability. The appropriate econometric method would be to estimate an error correction vector model (ECVM) which has the property of determining the long- and short-term relationships between the variables. The volatility of the MASI index will be the subject of a second estimate to capture the shape of the function of its evolution.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005743","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

Air flow analysis of 20 hp three phase induction motor 20马力三相异步电动机气流分析

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2022012

Anuprita Bhosale, Sathyanarayanan Nandagopal, D. Jebaseelan, S. Ramasami, Lenin Natesan Chokkalingam

引用次数: 0

Impact of human–human virus transmission in an air-conditioned room with proper ventilation system 在有适当通风系统的空调室内，人与人之间病毒传播的影响

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2022013

Chalumuru Manas, Pusapati Laxmi Narasimha Raju, Kethavarapu Naga Bharat Kumar, H. Rajan

{"title":"Impact of human–human virus transmission in an air-conditioned room with proper ventilation system","authors":"Chalumuru Manas, Pusapati Laxmi Narasimha Raju, Kethavarapu Naga Bharat Kumar, H. Rajan","doi":"10.1051/smdo/2022013","DOIUrl":"https://doi.org/10.1051/smdo/2022013","url":null,"abstract":"As we are probably aware of certain infectious diseases that transmit from body to body because of perspiration or respiration of air from a human being containing strains of the infection, the goal of this investigation is to see how the infection is getting spread from a human residing in a closed area provided with air conditioner and with an appropriate ventilation framework that need to be involved to diminish infection dissemination in this enclosed area. Considering the present COVID-19 situation, it is important to discover the effect of infection spread to an individual contagion source. An appropriate CFD-model giving analysis of infection transmission from individual to individual in an air-conditioned room would give results to understand such situations. Likewise, this examination would help in determining the velocity, temperature, and particle contours in a characterized walled area. Besides, we have displayed various nooks utilizing different ventilation frameworks to discover which framework would give better outcomes to decrease infection transmission. Our investigation would provide how varying flow rates in a room at an outlet could be effective in reducing virus dissemination, as this model could be applied to cafes, cinemas, inns, and above all emergency clinics where individuals remain in an enclosed air-conditioned room.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58006414","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

Minimizing the variance of the coverage ratio as an approach to optimize the exchange rate risk of Brent futures contracts 将承保比率的方差最小化作为优化布伦特期货合约汇率风险的一种方法

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2022006

Mustapha Bouchekourte, Sara Rhouas, Norelislam El Hami

{"title":"Minimizing the variance of the coverage ratio as an approach to optimize the exchange rate risk of Brent futures contracts","authors":"Mustapha Bouchekourte, Sara Rhouas, Norelislam El Hami","doi":"10.1051/smdo/2022006","DOIUrl":"https://doi.org/10.1051/smdo/2022006","url":null,"abstract":"Derivatives markets show that their structure is always characterized by periods of strong price fluctuations. This is true regardless of the underlying asset of the futures contracts considered, whether they are commodities, interest rates, exchange rates, shares, stock market indices, etc. By locking in future prices, the primary objective of these markets is to limit the risks faced by operators. This article proposes a new method of optimizing the coverage ratio by futures contracts to minimize price variance and thus apply this new technique to reduce the risk associated with Brent price volatility for the period from January 2010 to December 2020. The variance minimization model of Ederington's (1979) is the first and most widely used coverage model and the one that dominates the literature on this area which helps to find the optimal coverage ratio, and is also the objective function in our particle assay optimization algorithm in MATLAB and we will better interpret our results with statistical analysis and lastly, we will evaluate the effectiveness of the coverage model.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005847","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

Prediction and optimization of performance and emission characteristics of a dual fuel engine using machine learning 利用机器学习预测和优化双燃料发动机的性能和排放特性

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2022002

K. Karunamurthy, M. Feroskhan, G. Suganya, Ismail Saleel

{"title":"Prediction and optimization of performance and emission characteristics of a dual fuel engine using machine learning","authors":"K. Karunamurthy, M. Feroskhan, G. Suganya, Ismail Saleel","doi":"10.1051/smdo/2022002","DOIUrl":"https://doi.org/10.1051/smdo/2022002","url":null,"abstract":"The current research in engine, fuel and lubricant development are aiming towards environmental protection by reducing the harmful emissions. The testing under various conditions becomes mandatory before releasing product to meet the sustainable development goals of United Nations. This experimentation and testing under various operating conditions is time-consuming and tiresome process; it also leads to wastage of manpower, money, precious time and scarce resources. Intelligent techniques like Machine Learning (ML) has proven it's usage in almost all domains, trying to simulate the results as trained. This advantage is used to predict the performance and emission characteristics of a dual fuel engine. In this study, the experimental data are obtained from a single cylinder CI engine by operating under dual fuel mode using biogas and diesel as primary and secondary fuel respectively. The input parameters such as biogas flow rate, methane fraction (MF), torque and intake temperature are considered to predict the output parameters. The output parameters of the study includes performance attributes Brake thermal efficiency, secondary fuel energy ratio, and emissions attributes HC, CO, NOx and smoke. The proposed model uses Random forest Regressor and is trained using 324 distinct experiences recorded through physical experimentation. The model is validated using R2 score which is observed to be 0.997 for the given dataset while trained and tested in the ratio of 85:15. The outputs of the model are used to compute the output data for any new values of input attributes. The optimized values of the input parameters that could give maximum thermal efficiency and minimum emission is found using Lagrangian optimization. The optimized values are 12.48 Nm torque, 8.29 lit/min of biogas flow rate, methane fraction of 72.8%, intake temperature of 68.3 °C.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005437","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

Design and analysis of shell and tube heat exchanger 管壳式换热器的设计与分析

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2022005

Erica Jacqueline Fernandes, S. Krishanmurthy

{"title":"Design and analysis of shell and tube heat exchanger","authors":"Erica Jacqueline Fernandes, S. Krishanmurthy","doi":"10.1051/smdo/2022005","DOIUrl":"https://doi.org/10.1051/smdo/2022005","url":null,"abstract":"The demand for consumption of energy in industries has made designers to build efficient heat transfer exchangers. One of the most used heat exchangers which supports this is the shell and tube heat exchangers which are built for effective heat transfer. These heat exchangers are widely utilized in the HVAC industries especially in chiller plants due to their large surface for heat transfer. So, design of these chillers is influenced by the selection of material. This research paper discusses the design and analysis of shell and tube heat exchangers by considering different material and their ability to transfer heat from the surface. So, baffles play an important role to analyze the performance of the heat exchangers and it is possible to improve their heat transfer capabilities. So, in this research paper baffle spacing and its effect on heat transfer has been analyzed using CFD analysis and compared these results with the theoretical analysis. The Design and modelling of the heat exchanger have been modelled using PTC Creo parametric and using ANSYS Fluent CFD analysis have been carried out considering copper, aluminum, and steel as the materials. From this analysis it can be stated that copper has performed well as compared to aluminum and steel by using minimum baffle spacing.","PeriodicalId":37601,"journal":{"name":"International Journal for Simulation and Multidisciplinary Design Optimization","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58005819","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

Corrigendum to: Numerical Simulation and Experimentation of Endodontic File using Taguchi DoE 使用田口DoE进行牙髓锉的数值模拟和实验的勘误

International Journal for Simulation and Multidisciplinary Design Optimization Pub Date : 2022-01-01 DOI: 10.1051/smdo/2021044

Pravin R. Lokhande, S. Salunkhe, Balaguru Sethuraman

引用次数: 1