Applied Mechanics and Materials最新文献_第9页

Investigating the Impact of Short Burden and Spacing on Blasting Output in Zeberced Quarry 调查泽贝塞德采石场爆破产出中短装药量和间距的影响

Applied Mechanics and Materials Pub Date : 2024-01-09 DOI: 10.4028/p-wqqb0d

Mumini Babatunde Saka, Sunday Oluwafemi Ayoola, Mohd Hazizan Mohd Hashim

{"title":"Investigating the Impact of Short Burden and Spacing on Blasting Output in Zeberced Quarry","authors":"Mumini Babatunde Saka, Sunday Oluwafemi Ayoola, Mohd Hazizan Mohd Hashim","doi":"10.4028/p-wqqb0d","DOIUrl":"https://doi.org/10.4028/p-wqqb0d","url":null,"abstract":"Blasting has been adjudged as the cheapest method of hard rock fragmentation. The itinerary of rock breakage through blasting in open pit mines is a complex portent which is measured via various variables and parameters. This research investigates the impact of short burden and spacing on blasting output with the aim of establishing a more suitable and economically viable approach. Trials and proposed methods were adopted to investigate blasting geometry results. Results obtained showed that the trials method of 1.2 m by 1.2 m and proposed blasts method of 2.0 m by 2.0 m burden and spacing at 9m depth, covered areas were 80.64 m2 and 99.36 m2 respectively, while at 12 m depth with same blasting geometry covered 224 m2 and 276 m2 respectively. The first trial and proposed blasts methods using burden and spacing of 1.2 m by 1.2 m produced 2,583.71 tons and 2,387.62 tons respectively. Hence, with the use of 2.0 m by 2.0 m burden and spacing, the blasts operations produced 7,176.96 tons and 6,632.28 tons respectively. Meanwhile, the results revealed that, short burden (≤ 1.2 m by 1.2 m) threatens safety in which flyrocks are spawned and it’s dangerous to equipment and personnel, at the same time, the areas covered, quantity produced (i.e. volume) and the tonnage were small compared to the engineering control methods. However, it was found that the trials blast methods were not economically worthwhile in terms of explosive consumption compared to the proposed measure of the geometry.","PeriodicalId":8039,"journal":{"name":"Applied Mechanics and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139444485","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

Intelligent Surveillance Using Robot Eye and Sensor System 基于机器人眼和传感器系统的智能监控

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-4yneed

Puchala Jaswanth Phaneendra Swamy, B. YeswanthKumar Reddy, K. Chandrasekhar

{"title":"Intelligent Surveillance Using Robot Eye and Sensor System","authors":"Puchala Jaswanth Phaneendra Swamy, B. YeswanthKumar Reddy, K. Chandrasekhar","doi":"10.4028/p-4yneed","DOIUrl":"https://doi.org/10.4028/p-4yneed","url":null,"abstract":"Majority of the advancements, which have been made in the field of robotics are employed in household applications. Surveillance systems are used in guarding and security applications of household and workplaces. This paper presents an advanced surveillance system which integrates sensor system, robot technology and intelligent programming. Robotic surveillance system can be used to replace human guards in dangerous surveillance conditions. Several robots have been developed to assist in these operations. But the full scale employment of robots in crucial fields such as surveillance, security in defence industries and military bases is very limited. The system's overall structure is described, along with descriptions of each component. The robotic system consists of robot eyes, which are capable of sensing an object through IR sensor capability. This robotic system helps in the identification of human presence and alerting respective owners. These operations, performed by the robotic system are achieved using sensors, several number of servo motors, Arduino microcontroller. These components are placed in their respective locations, within a body which is fabricated using the 3D printing technology. The sensors in the robotic system capture the movements of objects. The robotic eyes are fitted with cameras which capture the movements. The robotic system is programmed in such a way that the robotic eyes, move in the direction of object which has been sensed by the sensors and focus on it. If there are multiple moving objects, then one robotic eye focuses on one object, while the other robotic eye focuses on another object. The captured surveillance footage can be viewed through a monitor connected to the robotic system.","PeriodicalId":8039,"journal":{"name":"Applied Mechanics and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135858065","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

Technical Implementation of the Concept of Using Gel-Forming Systems to Protect Tanks with Oil Products from Thermal Effects of a Fire 使用凝胶成型系统保护油品储罐免受火灾热效应影响的技术实现

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-5bokza

Alexander Savchenko, Oleksii Basmanov, Serhii Hovalenkov

引用次数: 0

Thermoelastic Analysis of Functionally Graded Cylinder 功能梯度圆柱的热弹性分析

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-wsgbq1

P. Ravi Kumar, Tata Nancharaiah, Bhil Ajay, B. Rajesh, B. Durga Prasad Nayak, I. Jithendra Naga Sai Babu

引用次数: 0

Creation of Equipment for Testing Roofs for Resistance to External Fire Influence 屋顶抗外部火灾影响测试设备的研制

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-umon0q

Taras Samchenko, Oleksandr Dobrostan, Viktor Pokaliuk, Roman Chernysh

{"title":"Creation of Equipment for Testing Roofs for Resistance to External Fire Influence","authors":"Taras Samchenko, Oleksandr Dobrostan, Viktor Pokaliuk, Roman Chernysh","doi":"10.4028/p-umon0q","DOIUrl":"https://doi.org/10.4028/p-umon0q","url":null,"abstract":"This paper examines and analyzes the domestic and foreign regulatory framework, guidelines and technical documents, information brochures, manuals, handbooks, test reports and other literary sources as well as information on the Internet. In the countries of the European space, fire safety requirements have been established for roofs and roofing materials, both for roofing materials and for roofs as part of structures, which helps to limit the spread of fire in buildings and structures during a fire. It has been proven that there is a need to create equipment for testing resistance to external fire exposure in accordance with DSTU CEN/TS 1187:2016 (method 2) of coverings of buildings (roofs) and establishing fire classification according to DSTU EN 13501-5:2016. A registration certificate, a technical description, an operating manual, and a program and methodology of the test bench verification have been developed. The initial verification of the test bench was carried out and it was put into operation. Approbation of the test method was carried out on the created test bench through experimental studies of five types of roofing materials being widely used on construction works in Ukraine using two bases (substrates) of combustible and non-combustible materials at air flow speeds of 2 m/s and 4 m/s above the specimen surface. According to the results of this work, it was established that the maximum relative deviation of the result of measuring the length of the damaged (charred) part of the specimens was in the range of 1.2 % to 23.3 % for the roof and 0.7 % to 27.5 % for the base.","PeriodicalId":8039,"journal":{"name":"Applied Mechanics and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135858935","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

Machines and Technological Equipment 机器和技术设备

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/b-ozpun1

V. Andronov, Y. Otrosh, Tata Nancharaiah, Janapati Laxmi Lalitha

引用次数: 0

Increasing the Efficiency of Extinguishing Fires in a Pressurized Space due to the Adhesive Properties of Gel-Forming Fire Extinguishing Compounds 凝胶状灭火化合物的黏附特性提高了加压空间中灭火的效率

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-kyw25j

Konstantin Ostapov, Yurii Senchykhin, Vadym Avetisian, Igor Kirichenko

引用次数: 0

Investigation on Generative Designs for Fast Connector Socket (FCS) Using High-Strength Low-Alloy (HSLA) Steel 高强度低合金(HSLA)钢快速连接器插座(FCS)生成式设计研究

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-ji7ngu

Varra Narayana, B. Sreenivasa Kumar Reddy, V. Venugopal Reddy

{"title":"Investigation on Generative Designs for Fast Connector Socket (FCS) Using High-Strength Low-Alloy (HSLA) Steel","authors":"Varra Narayana, B. Sreenivasa Kumar Reddy, V. Venugopal Reddy","doi":"10.4028/p-ji7ngu","DOIUrl":"https://doi.org/10.4028/p-ji7ngu","url":null,"abstract":"This study appears to focus on the application of metal additive manufacturing and generative designs to create more efficient and sustainable metallic components. The methodology developed in this study takes a comprehensive approach, from component selection to validation of outputs, which can lead to more efficient use of metallic parts in the future. Here CATIA V5 R20 used to create three new models of a fast connector socket (FCS) components, and then using ANSYS Workbench 16.0 apply the working load limit of 4.5 ton load with AISI 4142 380 qt steel alloy material used to the models to analysis. The Autodesk Fusion 360 software was then used to create generative designs for the fast connector socket models, which aimed to reduce mass, size, and material of the model while maintaining its effectiveness. The generative design approach used in this study is inspired by nature's evolutionary design process and considers production processes and cost restrictions. This approach can lead to the creation of more efficient and sustainable metallic components that can be used in various applications, including mechanical, marine, mining, construction, load lifting, pulling, and holding. Overall, this study highlights of the potential benefits. The comprehensive methodology used in this study can be applied to other metallic component designs to improve their efficiency and sustainability.","PeriodicalId":8039,"journal":{"name":"Applied Mechanics and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135858934","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

Improvement of the Prototype of the Compressed Air Foam System and its Testing 压缩空气泡沫系统原型的改进及其试验

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-sj8kwy

Anatolii Kodrik, Oleksandr Titenko, Stanislav Vinogradov, Stanislav Shakhov

{"title":"Improvement of the Prototype of the Compressed Air Foam System and its Testing","authors":"Anatolii Kodrik, Oleksandr Titenko, Stanislav Vinogradov, Stanislav Shakhov","doi":"10.4028/p-sj8kwy","DOIUrl":"https://doi.org/10.4028/p-sj8kwy","url":null,"abstract":"The prototype of the compressed air foam system was improved based on the evaluation of the numerical parameters obtained with the help of the developed mathematical model of the foam generation process and the pneumatic-hydraulic scheme. The prototype provides the possibility of foam generation both in autonomous mode, due to the installation of cylinders with compressed gas, and in stationary mode, due to the supply of compressed air from an external source. This allows the use of an improved model of the compressed air foam system both in stationary mode (dry pipes, gas stations, etc.) and for use on heavy and light fire trucks, which is important for large cities. Testing of the improved prototype of the system for extinguishing model fires was carried out. The system provides extinguishing of model fires of class 183 B and 144 B when using both a general-purpose foaming agent and a special film-forming foaming agent. When using a film-forming foaming agent, the extinguishing time was reduced by 1.75 times, the consumption of fire extinguishing solution by 1.47 times. But at the same time, it should be taken into account that the cost of the film-forming foaming agent Sofir (sofirafff 6 %) is more than 3.2 times the cost of the general-purpose foaming agent Sofir. The effectiveness of the improved model in extinguishing class A fires was also confirmed. The autonomous compressed air foam system ensures extinguishing of a class 4 A model fire in 90 seconds. Dry foam with a factor of 14 is noted to be more effective in extinguishing solid combustible substances.","PeriodicalId":8039,"journal":{"name":"Applied Mechanics and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859094","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 and Selection of Optimal Hydrodynamic Parameters of Rotary Cavitation Devices for Processing Oil Blends and Distillates 混馏油处理旋转空化装置最佳流体动力参数的研究与选择

Applied Mechanics and Materials Pub Date : 2023-10-13 DOI: 10.4028/p-bbedy2

Inna Lavrova, W.Saeed Ammar, Sergiy Copylov, Vladyslava Vladymyrenko, Anna Cherkashina

引用次数: 0