Engineering Headway最新文献_第9页

Topological Optimization of Mining Vehicle Tyre 采矿车辆轮胎的拓扑优化

Engineering Headway Pub Date : 2024-03-19 DOI: 10.4028/p-j95uwz

Peter Muller, Linda Mthembu

{"title":"Topological Optimization of Mining Vehicle Tyre","authors":"Peter Muller, Linda Mthembu","doi":"10.4028/p-j95uwz","DOIUrl":"https://doi.org/10.4028/p-j95uwz","url":null,"abstract":"Commercial tyres that are specifically designed for higher speed and on-highway tarred road conditions are currently being used on lightweight underground mining utility vehicles. This is due to there being no alternative tyres that are readily available to better suite the application and environment. This research calls attention to the side effects of using commercial tyres in mining environments. As a result, a model-based systems engineering approach is used to design a more appropriate tyre for this environment. Airless tires have been a focus area for many top tyre manufacturing companies however the criteria and focus of existing papers has predominantly been on commercial tyres that follow a completely different set of design rules and requirements. In this research a topologically optimised tyre that better conforms with the design parameters of the vehicle, is proposed and analysed. A computational aided design (CAD) model of a commercial pneumatic tyre and a foam filled tyre was created. Data from a typical mining vehicle of this class was captured and used to calculate the mechanics as inputs to the finite element model (FEM) including driveshaft effects. This model is then statically analyses and optimised over various iterations of topologies. The iteration stopping criteria is reduced stresses on drivetrain components and being able to accommodate a greater payload. This research provides a proof of concept on the feasibly of replacing standard commercial pneumatic or foam filled tyres with purpose designed airless tyres to better serve the mining market whilst retaining original equipment manufacturer vehicle design parameters. From the results it was found that these tyres can meet the loading requirements as specified given the resultant deflections, reduced stresses and reduced polar second moment area on the driveshaft component (s).","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"57 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140230899","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

Comparative Flexural Analysis of Cantilever Beam at Various Loads Using Analytical, Computational and Experimental Techniques 利用分析、计算和实验技术对各种载荷下的悬臂梁进行挠曲对比分析

Engineering Headway Pub Date : 2024-03-19 DOI: 10.4028/p-z1h6nq

Ashenafi Abuye, Fasikaw Kibrete, Getaw Ayay, Ermias Gebrekidan

引用次数: 0

Influence of Annealing Temperature on the Chemical Composition of Composite Al-Si Coating Deposited via Magnetron Sputtering on ZK60A 退火温度对通过磁控溅射沉积在 ZK60A 上的铝硅复合镀层化学成分的影响

Engineering Headway Pub Date : 2024-03-19 DOI: 10.4028/p-ow1fcv

Ashish Kumar Singh, Nikokajs Glizde, K. Savkovs

引用次数: 0

Certain Investigation on Feasibility of Developing Riser Less Ductile Iron Castings 关于开发无立管球墨铸铁铸件可行性的若干调查

Engineering Headway Pub Date : 2024-03-19 DOI: 10.4028/p-i3gn61

Saravanan Venkatachalam Subramanian, C. Palanisamy, Raghu Raman, P. Olubambi

引用次数: 0

Development and Implementation of an Artificial Neural Network for the Simulation of Flood Phenomena in a Natural Area 开发和实施用于模拟自然区域洪水现象的人工神经网络

Engineering Headway Pub Date : 2024-03-19 DOI: 10.4028/p-yos9a2

E. Keramaris, Ioannis Petikas

引用次数: 0

The International Conference on Applied Research and Engineering 应用研究与工程国际会议

Engineering Headway Pub Date : 2024-03-19 DOI: 10.4028/b-pwej7o

V. Msomi, S. Mabuwa

引用次数: 0

Safe Avoidance Region Detection for Unmanned Aerial Vehicle Using Cues from Expansion of Feature Points 利用特征点扩展线索检测无人飞行器的安全避让区域

Engineering Headway Pub Date : 2024-03-05 DOI: 10.4028/p-zfls0d

Muhammad Faiz Bin Ramli, A. Sutjipto, Erwin Sulaeman, Ari Legowo

{"title":"Safe Avoidance Region Detection for Unmanned Aerial Vehicle Using Cues from Expansion of Feature Points","authors":"Muhammad Faiz Bin Ramli, A. Sutjipto, Erwin Sulaeman, Ari Legowo","doi":"10.4028/p-zfls0d","DOIUrl":"https://doi.org/10.4028/p-zfls0d","url":null,"abstract":"Develop an obstacle detection system for Unmanned Aerial Vehicle (UAV) especially for small UAV is challenging. A robust system should be able to not only detect obstacles but the free region for the avoidance path as well. Besides, the configuration of the obstacles in the operating environment should never be disregard. In this paper, expansion cues from the detected feature points with the help of convex hull will be used to categorize the regions in the image frame. A micro LIDAR sensor is used as the initial detector of obstacle and queue for image capturing by the camera. Next, ORB algorithm is applied to find the obstacle regions and free space regions. This is done through the principal of object size changes and distance relationship in an image perspective. The proposed system was evaluated through series of experiments in a real environment which consist of different configuration of obstacles. The experiments show the proposed system was able to find the safe avoidance region regardless of the configuration of the obstacles in the operating environment. Keywords: Expansion cue; ORB; Feature points; Safe avoidance region","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"6 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140263182","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

Risk Based Inspection Analysis on Primary and Secondary Cooling Pipe of the TRIGA 2000 Reactor 基于风险的 TRIGA 2000 反应堆一级和二级冷却管检查分析

Engineering Headway Pub Date : 2024-03-05 DOI: 10.4028/p-vmv85r

Zainal Abidin, Hendi Septian Cahyadi, Yayat Supriyatna, A. Sutjipto

{"title":"Risk Based Inspection Analysis on Primary and Secondary Cooling Pipe of the TRIGA 2000 Reactor","authors":"Zainal Abidin, Hendi Septian Cahyadi, Yayat Supriyatna, A. Sutjipto","doi":"10.4028/p-vmv85r","DOIUrl":"https://doi.org/10.4028/p-vmv85r","url":null,"abstract":"Analysis of the application of Risk Based Inspection method in the primary and secondary cooling pipe of TRIGA 2000 Bandung Reactor was conducted with the aim of obtaining a risk level value. To obtain the risk level value is carried out secondary cooling pipe thickness measurement using Ultrasonic Testing first. Furthermore, to obtain the risk level value, data such as pipe specifications, flowing fluid specifications, management system factors, measured pipe thickness data and previous inspection results, and pipe maintenance history will be used to calculate probability of failure (PoF) and Consequence of Failure (CoF) values. Probability of Failure and Consequence of Failure values are then plotted into a risk matrix to find out the level of risk that the component has. Risk level results can then be used to determine inspection methods and inspection intervals. The result of the risk level obtained from the calculation of the primary cooling pipe triga reactor 2000 is MEDIUM, lower than the risk level in the primary cooling pipe Kartini Reactor is MEDIUM HIGH. For the risk level of secondary cooling pipe Triga Reactor 2000 is MEDIUM is the same as the risk level of secondary cooling pipe Kartini Reactor. The recommended inspection methods for both reactors are the same using ultrasonic thickness measurement and visual examination inspection methods. Next inspection intervals for primary cooling pipes were 2068, 2092, 2104, 2110 and 2113 and for Kartini Reactor primary cooling pipes every 20 months. For Secondary cooling pipe Triga Reactor 2000 next inspection interval is 2067, 2090, 2101, 2106 and 2108 and for Kartini Reactor secondary cooling pipe every 10.11 years.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"20 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140264012","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

Settlement of Land Disputes between PT Selatan Agro Makmur Lestari (PT SAML) and Residents of Tirta Mulya Village, Air Sugihan District, Ogan Komering Ilir (OKI) Regency, South Sumatra Province, Indonesia PT Selatan Agro Makmur Lestari（PT SAML）与印度尼西亚南苏门答腊省 Ogan Komering Ilir（OKI）县 Air Sugihan 区 Tirta Mulya 村居民之间的土地纠纷解决方案

Engineering Headway Pub Date : 2024-03-05 DOI: 10.4028/p-ls7mzi

Ellyza Octaleny

{"title":"Settlement of Land Disputes between PT Selatan Agro Makmur Lestari (PT SAML) and Residents of Tirta Mulya Village, Air Sugihan District, Ogan Komering Ilir (OKI) Regency, South Sumatra Province, Indonesia","authors":"Ellyza Octaleny","doi":"10.4028/p-ls7mzi","DOIUrl":"https://doi.org/10.4028/p-ls7mzi","url":null,"abstract":"Land disputes that often occur in Indonesia are disputes over land rights. Disputes over land rights occur in many places throughout Indonesia, both in remote villages and urban areas. Most of the problems that arise are related to land cases in the plantation sector. The case of land disputes in the plantation sector was caused by a sharp socio-economic gap between plantation entrepreneurs and residents living around the plantation area. One of the land rights disputes occurred between PT Selatan Agro Makmur Lestari (PT SAML) and residents of Tirta Mulya Village, Air Sugihan District, Ogan Komering Ilir Regency, South Sumatra Province. The research method used in this research is the descriptive qualitative method. Data collection techniques are by means of interviews, observation, and documentation. The findings in this study were that in 2017, Komnas HAM RI successfully mediated mediation. Still, the results of the agreement failed to be implemented. Hence, in 2020 the residents of Tirta Mulya Village made another complaint to the Regional Land Office of South Sumatra Province because they rejected the results of the agreement signed by representatives of residents who did not give the power to represent the residents of Tirta Mulya Village. The recommendation of this research is to create an effective mediation model such as good communication, fairness in making agreements, integrity and good will from all parties.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"129 45","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140078978","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

DNA Mutation of Rc Gene and the Phenotype of Aleurone and Pericarp of Local Red Rice from South Sumatera Rc 基因的 DNA 变异与南苏门答腊当地红米的胚乳和果皮的表型

Engineering Headway Pub Date : 2024-03-05 DOI: 10.4028/p-2nbp2i

Nur Arifah, Laila Hanum, M. Muharni

{"title":"DNA Mutation of Rc Gene and the Phenotype of Aleurone and Pericarp of Local Red Rice from South Sumatera","authors":"Nur Arifah, Laila Hanum, M. Muharni","doi":"10.4028/p-2nbp2i","DOIUrl":"https://doi.org/10.4028/p-2nbp2i","url":null,"abstract":"The red color of red rice pericarp and aleurone is regulated by proanthocyanidin protein. Proanthocyanidin protein was encoded by partial sequence of Rc gene. The mutation from DNA sequence would give divers phenotype in pericarp and aleurone. This study used four sample of local red rice (Keli Rejo, Sumber Jaya, Cahya Tani, Sirah Pulau Padang) from South Sumatra as genetic sources and specific primers (RC12) were used to encode Proanthocyanidin protein on local red rice. This research was conducted at the Genetic and Biotechnology Laboratory of Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University. The primary objectives of this study were to identify the correlations between the mutations from DNA sequences which encoded proanthocyanidin protein in local red rice from South Sumatra and the fenotip of pericarp and aleurone. The stapes was DNA isolation, amplification, electrophoresis, sequencing process using First Base Malaysia and sequences analysis using Clustal W to align the DNA sequence. Sequencing result showed all of the samples had high variability (less conserved region) where the alignment process showed deletion mutation and DNA substitution mutation along the sequences of the samples. The highest mutation occurred at local red rice from Cahya Tani and the lowest mutations take place at local red rice from Keli Rejo. The samples have the same phenotype of pericarp, meanwhile different at aleurone color. The sample from Sumber Jaya had the reddest aleurone color than other sample and this sample also showed the highest deletion mutation.","PeriodicalId":512976,"journal":{"name":"Engineering Headway","volume":"128 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140079032","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