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Investigation of Perceived Risk Encountered by Electric Vehicle Drivers in Distinct Contexts 不同情境下电动汽车驾驶员感知风险的研究
Applied Engineering Letters Pub Date : 2021-05-01 DOI: 10.18485/aeletters.2021.6.2.4
L. N. Patil, H. Khairnar
{"title":"Investigation of Perceived Risk Encountered by Electric Vehicle Drivers in Distinct Contexts","authors":"L. N. Patil, H. Khairnar","doi":"10.18485/aeletters.2021.6.2.4","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.2.4","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78023224","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
Investigation of the Surface Properties of TiN-Coated Ti6Al4V Alloy 镀锡Ti6Al4V合金表面性能的研究
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.4.5
Ş. Danışman, Emin Ersoy, C. Dogan
{"title":"Investigation of the Surface Properties of TiN-Coated Ti6Al4V Alloy","authors":"Ş. Danışman, Emin Ersoy, C. Dogan","doi":"10.18485/aeletters.2021.6.4.5","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.4.5","url":null,"abstract":": Titanium alloys are widely used in the aerospace industry due to their good mechanical properties. Especially Ti6Al4V alloy is preferred in machine parts that require specific strength in aerospace. However, the tribological properties of the Ti6Al4V alloy are poor and need improvement. It is possible to increase the life of Ti6Al4V alloys and improve their surface properties with various heat treatment and surface coating techniques. For this purpose, in this study, plasma nitriding heat treatment was first applied to the samples prepared from Ti6Al4V alloy. Then, TiN coating was carried out by the magnetron sputtering method. Surface roughness and surface hardness were measured before and after coating. Wear tests were performed with dry friction and room temperature conditions on Ti6Al4V alloys using the sliding velocity and normal load as variable parameters. The wear track widths, the weight loss of the samples, and the abrasive disc were measured. The steady‐state sliding regime average friction coefficients were determined from the recorded friction forces depending on the sliding distance. Normal load ‐ wear track widths, normal load ‐ friction coefficient graphics were created. Load wear track width plots showed that the wear track widths on the TiN coated and uncoated samples increased with the load. The fact that the track width values of the uncoated samples with the same load and velocity values were higher than the TiN‐coated samples showed that the TiN‐coated samples had higher wear resistance. In addition, it was observed that the friction coefficient values in the uncoated samples under constant sliding speed were relatively higher than the TiN‐ coated samples","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74623064","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
Wind Energy Conversion System Using Maximum Power Point Tracking Technique — A Comprehensive Survey 采用最大功率点跟踪技术的风能转换系统综述
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.4.2
M. A. Koondhar, Majid Ali, M. Keerio, A. K. Junejo, Imtiaz Ali Laghari, Sadullah Chandio
{"title":"Wind Energy Conversion System Using Maximum Power Point Tracking Technique — A Comprehensive Survey","authors":"M. A. Koondhar, Majid Ali, M. Keerio, A. K. Junejo, Imtiaz Ali Laghari, Sadullah Chandio","doi":"10.18485/aeletters.2021.6.4.2","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.4.2","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85197722","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
Prevention of Water Ingress in Hydraulic Systems 防止液压系统进水
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.3.2
Samo Goljat, V. Tič, D. Lovrec
{"title":"Prevention of Water Ingress in Hydraulic Systems","authors":"Samo Goljat, V. Tič, D. Lovrec","doi":"10.18485/aeletters.2021.6.3.2","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.3.2","url":null,"abstract":": Industrial and mobile hydraulic systems are exposed to various environmental impacts. In order to achieve reliable operation and stable long-term use, we have to prevent ingress of different contaminants into hydraulic fluid and keep contamination levels on minimum. One of most common contaminants is water, which can significantly affect life-time of a hydraulic system. Thus, special attention should be paid to keep water content and humidity of hydraulic oil on lowest possible level, especially when using particular types of oil. The paper investigates different approaches on how to efficiently monitor water contamination and prevent water ingress into hydraulic system.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"45 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72468996","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
Hydraulic Characteristics of Flow-Through Bridge Openings 通流式桥梁开口的水力特性
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/AELETTERS.2021.6.1.3
S. Mulahasan, A. Mohammed
{"title":"Hydraulic Characteristics of Flow-Through Bridge Openings","authors":"S. Mulahasan, A. Mohammed","doi":"10.18485/AELETTERS.2021.6.1.3","DOIUrl":"https://doi.org/10.18485/AELETTERS.2021.6.1.3","url":null,"abstract":": Flow-through a bridge opening may run either partially or fully. In this research, backwater rise, hydraulic loss coefficient, and drag coefficient for two bridge models and three flow conditions are investigated. Based on the dimensional analysis theory, an equation was developed to calculate the water level difference Δh between the upstream and the downstream for the bridge models. Results showed that the derived equation of the backwater rise is valuable to the experimental data which showed a percentage error not exceed 5%. The hydraulic loss coefficient CL and the drag coefficient C D were calculated. The drag coefficient values for the lateral constriction models are ranged from 0.5 to 2.0, and for the submerged bridge, the model was in the range of (0.5-3.5) with an average of 2.1. The impact of the blockage ratio on the hydraulic loss coefficient showed an increase of 1-2 times when the blockage was changed from 0.70 to 0.483.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87784022","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
Influence of Alternating Temperature Levels on the Wear Behavior of Radial Lip Seals: Test Rig Design and Wear Analysis 交变温度水平对径向唇形密封磨损性能的影响:试验台设计与磨损分析
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.3.4
Lukas Merkle, Matthias Baumann, F. Bauer
{"title":"Influence of Alternating Temperature Levels on the Wear Behavior of Radial Lip Seals: Test Rig Design and Wear Analysis","authors":"Lukas Merkle, Matthias Baumann, F. Bauer","doi":"10.18485/aeletters.2021.6.3.4","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.3.4","url":null,"abstract":"Radial lip seals are a common seal type for various industrial applications. In retarder breaking systems for commercial vehicles, radial lip seals are exposed to very fast changing oil sump temperatures. Due to increasing demands, the elastomer seals are increasingly failing premature in such applications. It is assumed that this is caused in particular by the very high temperature gradients, that result from the fact that a lot of braking power is dissipated within a short time. This is the case, for example, when braking while driving downhill with heavy loads. Since the temperature gradient is of minor importance in many applications, there are no publications regarding the specific influence of high temperature gradients on the function of radial shaft seals. Therefore, a test rig with advanced heating and cooling capacities is developed. A comprehensive test series is carried out, with the main focus on the influence of high temperature gradients on the wear behavior of the seals. Test results show, that different temperature levels lead to a significant change of the wear behavior. Additionally, fast changing temperatures are adding additional tribological stress to the sealing system. ARTICLE HISTORY Received: 05.08.2021. Accepted: 10.09.2021. Available: 30.09.2021.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75204915","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: 4
Surface Oxidation of Al-Si Alloys at Elevated Temperatures 铝硅合金在高温下的表面氧化
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.3.3
A. Miteva, A. Petrova, G. Stefanov
{"title":"Surface Oxidation of Al-Si Alloys at Elevated Temperatures","authors":"A. Miteva, A. Petrova, G. Stefanov","doi":"10.18485/aeletters.2021.6.3.3","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.3.3","url":null,"abstract":": Characteristic of the samples based on Al-Si alloys, that we have studied, is their propensity for oxidation at high temperatures. The few number of papers on the oxidation kinetics of aluminium alloys associated with Planar Flow Casting technology (PFC) can be found in the literature. The oxide processes and the properties of the oxide layer formed on the aluminium alloy are mainly considered. The aim of the present work is the kinetics of oxide layer formation on aluminium alloys to clarify whether alloys are suitable for use in space and under specific conditions. The formal kinetics of Nikitin was applied for data processing. The influence of the alloying elements on the formed surface oxide coating is shown.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82632349","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
Two Analytical Methods for Optimising Solar Process Heat System Used in a Pasteurising Plant 巴氏杀菌厂太阳能加热系统优化的两种分析方法
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.4.4
Rajab Ghabour, L. Josimović, P. Korzenszky
{"title":"Two Analytical Methods for Optimising Solar Process Heat System Used in a Pasteurising Plant","authors":"Rajab Ghabour, L. Josimović, P. Korzenszky","doi":"10.18485/aeletters.2021.6.4.4","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.4.4","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77684231","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
Energy Audit and Evaluation of Specific Energy Consumption of Lighting Systems in a New Building: A Kasetsart University Case Study 新建筑照明系统特定能耗的能源审计与评估:Kasetsart大学案例研究
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.4.3
W. Sriboon, P. Pansila, Soontree Khunthong, Saksit Sukprasong
{"title":"Energy Audit and Evaluation of Specific Energy Consumption of Lighting Systems in a New Building: A Kasetsart University Case Study","authors":"W. Sriboon, P. Pansila, Soontree Khunthong, Saksit Sukprasong","doi":"10.18485/aeletters.2021.6.4.3","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.4.3","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"110 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87677234","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
Calculated Assessment of Contact Strength, Wear and Resource of Metal-Polymer Gears Made of Dispersion-Reinforced Composites 分散增强复合材料金属-聚合物齿轮接触强度、磨损及资源的计算评价
Applied Engineering Letters Pub Date : 2021-01-01 DOI: 10.18485/aeletters.2021.6.2.2
M. Chernets, S. Shil’ko, A. Kornienko
{"title":"Calculated Assessment of Contact Strength, Wear and Resource of Metal-Polymer Gears Made of Dispersion-Reinforced Composites","authors":"M. Chernets, S. Shil’ko, A. Kornienko","doi":"10.18485/aeletters.2021.6.2.2","DOIUrl":"https://doi.org/10.18485/aeletters.2021.6.2.2","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"199 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88143081","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
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