2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)最新文献_第3页

Computer Aided Modelling and Investigation of the Performance of a Pump Impeller Produced using Fused Deposition Modelling 用熔融沉积模型制造的泵叶轮的计算机辅助建模和性能研究

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10199283

I. Daniyan, R. Muvunzi, F. Fameso, K. Mpofu, Felix Ale

{"title":"Computer Aided Modelling and Investigation of the Performance of a Pump Impeller Produced using Fused Deposition Modelling","authors":"I. Daniyan, R. Muvunzi, F. Fameso, K. Mpofu, Felix Ale","doi":"10.1109/ICMIMT59138.2023.10199283","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199283","url":null,"abstract":"Pumps find many industrial applications in converting electrical to mechanical energy necessary for fluid transfer. In this study, numerical analysis of the pump impeller produced via the Fused Deposition Modelling (FDM) was carried out in the complete ABAQUS environment (CAE/2020). This led to the determination of the stress, strain and deformation distribution induced on the modelled impeller under the operating conditions using the von Mises failure criterion. For the purpose of this study, the static general and steady state heat transfer steps were employed sequentially. The impeller’s model as casted in the FDM process was designed as a single solid homogenous part with no nodal separations or assembly constraints between the base of the impeller and its blades. Using a mesh interval of 0.5 mm, it was observed that the computational time decreases with an increase in the mesh size up to 5.0 mm. The results obtained showed that blade thicknesses less than 5 mm are more susceptibility to failure. In addition, extreme operating speeds up to 1000 rad/s and pressures of 0.22 MPa are not suitable conditions for high operational efficiency and structural integrity of the impeller. The findings of this work provides an insight into the design of pump impeller using the FDM with improved design accuracy and cycle time.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130019766","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

Research on Position Keeping Technology of FIVE-axis CNC Machine Tool under Abnormal State in Fixed Angle Machining of Swing Shaft 五轴数控机床摆轴定角加工异常状态下的位置保持技术研究

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10199617

Guangku Xue, Yulong Lan, Chun Liu, Xuemeng Xia, Zhongping Huang, Yu Long, Yun Zhang, Zhiwen Kang

引用次数: 0

CFD Analyses of the Aerodynamic Effects on a Quadcopter Propeller in the Proximity of Fixed and Horizontal Moving Obstacles 四轴飞行器螺旋桨靠近固定和水平移动障碍物时气动效应的CFD分析

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10200614

C-F. Hage, T. Sophy, E. Aglzim

{"title":"CFD Analyses of the Aerodynamic Effects on a Quadcopter Propeller in the Proximity of Fixed and Horizontal Moving Obstacles","authors":"C-F. Hage, T. Sophy, E. Aglzim","doi":"10.1109/ICMIMT59138.2023.10200614","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200614","url":null,"abstract":"Quadcopters are a type of drone with four rotors that are used for a variety of purposes, such as freight transportation, military surveillance, and aerial photography. However, when operating around obstacles and in the proximity of walls or moving objects, the aerial vehicle can be subject to external forces that can cause severe flight instability. To address this issue, a methodology based on multiple reference frame (MRF) tetrahedral meshes is developed in this paper and applied to computational simulations to study the downwash flow generated by a quadcopter propeller over fixed and moving obstacles. The effects of different rotational speeds and moving obstacle proximity are assessed and compared to experimental data and theoretical models. The results show that the presence of fixed and moving obstacles can have a significant impact on the aerodynamic performance of the propeller, leading to changes in lift force and the formation of turbulent vortices and flow separation zones. When hovering at 3000, 5000, and 9550 rpm, the results showed an increase in the lift force on the propeller by 9.3%, and 1.03% compared to open rotor thrust due to the presence of a fixed obstacle (wall) placed at 0.1 m and 0.2 m from the propeller respectively. However, when hovering (3000 rpm) at 0.2 m above a moving obstacle (5 m/s, and 10 m/s) the results have shown an increase in the lift by 1.92% for 5 m/s moving obstacle, and then a decrease by 4.4% for 10 m/s, comparing to fixed obstacle thrust. Finally, these findings could be useful for improving the stability and performance of quadcopters in real-world environments.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128371598","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 on the Industrial Applications of Flux Cored Arc Welding on an International Scale 国际范围内药芯电弧焊工业应用分析

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10199288

Ronaldo R. De Paz, Gabriel P. Famadico, Allysa Mariel J. Ortiz, Raymund Carlo F. Tanap, R. Tayactac, E. B. Ang, Ricky D. Umali, J. Honra

{"title":"Analysis on the Industrial Applications of Flux Cored Arc Welding on an International Scale","authors":"Ronaldo R. De Paz, Gabriel P. Famadico, Allysa Mariel J. Ortiz, Raymund Carlo F. Tanap, R. Tayactac, E. B. Ang, Ricky D. Umali, J. Honra","doi":"10.1109/ICMIMT59138.2023.10199288","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199288","url":null,"abstract":"The study focuses on analyzing the industrial applications done by international companies using Flux Cored Arc Welding, considering the factors of welding quality, productivity, economy, practices, problem and solutions. With the aim to determine the techniques done by companies around the world to prevent complications experienced upon welding, the researchers surveyed 43 international companies from different regions of the world. The responses are presented into pie charts and bar graphs that were interpreted into a qualitative analysis. Inferential statistics, specifically one-way Analysis by of Variance (ANOVA) and one-sample T Test in hypothesis testing with the means of statistical software Minitab and IBM SPSS Statistics respectively, are conducted to distinguish the influence of variables to the key words of the study. The significance level of most of the test variable in one-way ANOVA were greater than the 95% confidence interval, confirming the similarity of results given by the companies. FCAW is still one of the most used welding methods by the industrial companies internationally due to its ease of use. Welding problems are encountered despite of this and having welders training. Additionally, the researchers obtained sample mean of competitiveness in terms of product quality and performance level, having 4.6 for domestic and 4.33 for international (5 being the highest level). With the test value of 4.46, it showed no significant differences between domestic and international, meaning that the industrial companies believe that their product quality and performance level are at a proficient competency in domestic and international market.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114510113","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

Performance Investigation of Air Mask: A Novel Personalized Ventilation Device Using CFD Simulation against Virus-Laden Aerosols 基于CFD模拟的新型个性化通风设备——空气口罩的性能研究

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10200877

Krystal Ysavel P. Almeria, Marlo Joseph D. Comadre, Sandy M. Uy, M. Margarito, J. Celorico

引用次数: 0

ICMIMT 2023 Cover Page ICMIMT 2023封面

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/icmimt59138.2023.10200875

引用次数: 0

Machine Learning Regression to Predict Soil Moisture in Domestic Garden Environments 机器学习回归预测家庭花园环境中的土壤湿度

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10199334

Yujia Shan, Zhaobo K. Zheng

引用次数: 0

Research on the Application of Metaverse Technology in the US Army 元宇宙技术在美军中的应用研究

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10199364

Chenggong Zhai, Biao Dong, Hongsi Xu, Xingguang Yuan, Liyong Zhou, Weipei Song

引用次数: 0

Impact of Heat Exchanger Length and Porosity in a Travelling-Wave Thermo-Acoustic Engine 行波热声发动机中换热器长度和孔隙率的影响

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10199998

Accordance Ntimane, L. Tartibu

引用次数: 0

Improvement of a Tri-Star Climbing Trolley Wheels Performance for Optimal Operation 三星级爬坡小车车轮优化运行性能的改进

2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2023-05-26 DOI: 10.1109/ICMIMT59138.2023.10200556

P. B. Sob, M. Pita

引用次数: 0