Journal of Mechanical Engineering最新文献_第4页

Influences of Main Machining Process Parameters and Tool Wear on The Machining Damage Generated During Edge Milling CFRP Composites 主要加工工艺参数及刀具磨损对CFRP复合材料刃磨加工损伤的影响

Journal of Mechanical Engineering Pub Date : 2023-09-15 DOI: 10.24191/jmeche.v20i3.23917

Nguyen Dinh-Ngoc

引用次数: 0

Optimization and Mathematical Modelling of Surface Roughness Criteria and Material Removal Rate when Milling C45 Steel using RSM and Desirability Approach 用RSM和可取性法铣削C45钢表面粗糙度标准和材料去除率的优化和数学建模

Journal of Mechanical Engineering Pub Date : 2023-09-15 DOI: 10.24191/jmeche.v20i3.23907

Fnides Mohamed

{"title":"Optimization and Mathematical Modelling of Surface Roughness Criteria and Material Removal Rate when Milling C45 Steel using RSM and Desirability Approach","authors":"Fnides Mohamed","doi":"10.24191/jmeche.v20i3.23907","DOIUrl":"https://doi.org/10.24191/jmeche.v20i3.23907","url":null,"abstract":"This work consists of studying the workability of C45 steel in face milling by using coated carbides (GC4040). The objective is to investigate the evolution of surface roughness (Ra, Ry, and Rz) and Material Removal Rate (MRR) according to cutting speed, feed rate, and depth of cut. A full-factorial design (43)was adopted in order to analyse the obtained experimental results via bothAnalysis of Variance (ANOVA) and Response Surface Methodology (RSM)design. The levels of cutting speed were as follows: Vc1=57 m/min; Vc2=111m/min; Vc3=222 m/min and Vc4=440 m/min. The ranges of feed rate werefz1=0.024 mm/tooth; fz2=0.048 mm/tooth; fz3=0.096 mm/tooth and fz4=0.192mm/tooth. As for the depth of cut levels, they included ap1=0.2 mm; ap2=0.4mm; ap3=0.6 mm, and ap4=0.8 mm. To determine mathematical models tomake predictions, a statistical analysis of the results by using RSM was appliedto obtain the main effects and interactions plot of the answer. Furthermore, amulti-objective optimization procedure for minimizing Ra and maximizing themetal removed rate using the desirability approach was also implemented.Therefore, the developed models can be effectively used to predict the surfaceroughness criteria and the material removal rate in machining C45 steel. Theresults indicated that feed rate is a significant factor affecting surfaceroughness (Ra: 52.37%, Ry: 80.97%, and Rz: 54.96%), followed by cuttingspeed (Ra: 37.88%, Ry: 12.90%, and Rz: 24.43%). Meanwhile, cutting speedand feed rate are the most significant parameters on the MRR with a contribution of 29.5% followed by the depth of cut with 11.62%.","PeriodicalId":16332,"journal":{"name":"Journal of Mechanical Engineering","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486387","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

Evaluating the Nonlinear Dynamic Stiffness of Rail Pad using Finite Element Method 用有限元法评估轨道垫块的非线性动刚度

Journal of Mechanical Engineering Pub Date : 2023-09-15 DOI: 10.24191/jmeche.v20i3.23905

Abdul Malek Abdul Wahab

引用次数: 0

The Influence of Repeated Heat Treatments on The Propagation of Fatigue Cracking of Medium Carburized Steel 重复热处理对中渗钢疲劳裂纹扩展的影响

Journal of Mechanical Engineering Pub Date : 2023-09-15 DOI: 10.24191/jmeche.v20i3.23920

Emad Toma Karash

{"title":"The Influence of Repeated Heat Treatments on The Propagation of Fatigue Cracking of Medium Carburized Steel","authors":"Emad Toma Karash","doi":"10.24191/jmeche.v20i3.23920","DOIUrl":"https://doi.org/10.24191/jmeche.v20i3.23920","url":null,"abstract":"The issue of metal fatigue emerged as one of the major issues in a variety of engineering designs, and the design engineers were forced to take metals' fatigue resistance into account. In this paper, multiple quenching mediums and varied heat treatments were utilized to examine the effects of various heat treatments on the development of fatigue cracking in steel. The model that was carburized, quenched in distilled water and tempered before being quenched once more in distilled water and tempered a second time had the best outcomes, the fewest cycles needed to cause the model to fail, and a correlation between the rate of fatigue crack propagation and the length of the crack, according to the results. Additionally, the analytical findings demonstrated that this model, as opposed to models with fixed stress intensity factors, has a fatigue crack growth rate. The model that was carburized, quenched in coolant, then tempered and quenched again without performing the tempered appearance failed very rapidly. The high rate of the stress intensity factor with fatigue crack propagation is shown by the data analysis. The results show a reduction in the growth amount tendency of fatigue crack in the linear region mode-III.","PeriodicalId":16332,"journal":{"name":"Journal of Mechanical Engineering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486825","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

GUI-Based Data Visualisation Tool for Option C IPMVP using Jupyter Notebook 基于gui的数据可视化工具的选项C IPMVP使用Jupyter笔记本

Journal of Mechanical Engineering Pub Date : 2023-09-15 DOI: 10.24191/jmeche.v20i3.23898

Ezmin Abdullah

{"title":"GUI-Based Data Visualisation Tool for Option C IPMVP using Jupyter Notebook","authors":"Ezmin Abdullah","doi":"10.24191/jmeche.v20i3.23898","DOIUrl":"https://doi.org/10.24191/jmeche.v20i3.23898","url":null,"abstract":"IPMVP is an acronym for International Performance Measurement and Verification Protocol, used for calculating energy savings by taking some external factors into account to give an equal base for a linear comparison between two periods. However, determining the significant independent variable for routine adjustment causes inconvenient repeated action of regression analysis modeling, which leads to the exhaustive calculation and human error risk. These exasperating actions led to the creation of this project, which aims to provide a user-friendly, insightful, and accurate energy-saving calculation program tool. Thus, the main objective of this project is to develop an energy-saving computational tool for option C IPMVP using web-based data analytic tools to improve efficiency and accuracy in each project. This paper used a web-based mathematical computation, Jupyter Notebook, to determine the significant independent variable for routine adjustment of the adjusted baseline. The program tool was validated using V-model software verification and validation methodology based on IEEE 1012 standards. The study can be concluded that the exhaustive calculation to determine the energy saving based on IPMVP standards can be significantly reduced with precision values at 50%, 80%, 90%, and 95% confidence levels using the proposed program which is equipped with insightful graphs and a user-friendly interface.","PeriodicalId":16332,"journal":{"name":"Journal of Mechanical Engineering","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486830","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 of Two-Stage Force Amplification Frame for Piezoelectric Energy Harvester 压电能量采集器两级力放大架的设计

Journal of Mechanical Engineering Pub Date : 2023-09-15 DOI: 10.24191/jmeche.v20i3.23900

Choe-Yung Teoh

引用次数: 0