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Journal of Intelligent Mechanics and Automation最新文献

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Unbalance Localization of a Multi-Disc Rotor by Hybridizing Wavelet Transformation and Neural Network 基于杂交小波变换和神经网络的多盘转子不平衡定位
Journal of Intelligent Mechanics and Automation Pub Date : 1900-01-01 DOI: 10.55571/jima.2022.04022
M. Safari, A. Eydi
{"title":"Unbalance Localization of a Multi-Disc Rotor by Hybridizing Wavelet Transformation and Neural Network","authors":"M. Safari, A. Eydi","doi":"10.55571/jima.2022.04022","DOIUrl":"https://doi.org/10.55571/jima.2022.04022","url":null,"abstract":"Rotating machinery is widely working within the industry, and fault diagnosis and prognosis of them may be a vital issue that can save money continually. Unbalance is a crucial fault in rotary systems, and it is focused by many researchers to develop methods to detect that for correcting before global failure happening within the machine. Hence, the establishment of a procedure that will estimate the unbalance location and its specifics are going to be valued and practical for correcting operations. The recent study exemplifies a model that can detect the unbalance parameters, for example, the location of unbalance mass and value of that based on the hybridizing Wavelet Transformation and artificial neural network (ANN) model. The inputs of the model are wavelet coefficients derived from the bearing acceleration signal. It includes two hidden layers constructed by six neurons within each layer. The parameters estimation accuracy was attained 95%, 97%, and 96% for the disc number, the eccentric radius, and unbalance mass values, correspondingly.","PeriodicalId":206268,"journal":{"name":"Journal of Intelligent Mechanics and Automation","volume":"268 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125720566","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
Behaviour of Stress Strain Relationship of Few Metals 几种金属的应力应变关系行为
Journal of Intelligent Mechanics and Automation Pub Date : 1900-01-01 DOI: 10.55571/jima.2022.04025
Souvik Saha, Rakesh Kumar, S. Basack, Gourab Ganguly, Krishna Hazra
{"title":"Behaviour of Stress Strain Relationship of Few Metals","authors":"Souvik Saha, Rakesh Kumar, S. Basack, Gourab Ganguly, Krishna Hazra","doi":"10.55571/jima.2022.04025","DOIUrl":"https://doi.org/10.55571/jima.2022.04025","url":null,"abstract":"The aim of this study is to examine the uniaxial tensile strength of three specimens of mild steel, brass and aluminium is examined. Tension tests enable the determination and prediction of the deformation/deflection response of the material properties and elastic modulus. The values of Young’s Modulus for Elasticity (E) for mild steel, brass, and aluminium have been successfully determined from laboratory experiments. Also, the stress and strain of the materials were graphically shown to have good correlations between theory and experimental values and compositions. The results further show that steel is more suitable for structural application than brass and aluminium respectively, because of their high E Modulus rating. It therefore implies that steel can withstand more tension. The result obtained from the study such as tensile strength, yield strength etc. have been recorded. Also, the related theory has been indicated.","PeriodicalId":206268,"journal":{"name":"Journal of Intelligent Mechanics and Automation","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131830715","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
Influence of Thermal Boundary conditions on Natural Convection Heat Transfer in a Wavy Walled Square Cavity with Adiabatic Block 热边界条件对具有绝热块的方形波壁腔内自然对流换热的影响
Journal of Intelligent Mechanics and Automation Pub Date : 1900-01-01 DOI: 10.55571/jima.2022.04023
S. Dutta
{"title":"Influence of Thermal Boundary conditions on Natural Convection Heat Transfer in a Wavy Walled Square Cavity with Adiabatic Block","authors":"S. Dutta","doi":"10.55571/jima.2022.04023","DOIUrl":"https://doi.org/10.55571/jima.2022.04023","url":null,"abstract":"The aim of the present study is to analyze heat transfer characteristics for natural convection flows in a square enclosure with wavy right wall filled with air(Pr=0.71) having uniform heating on bottom wall and adjacent cold walls with a adiabatic square block inside. This geometry and the following results can be used for analysis in heat management of building architecture, solar collection devices, having walls with surface roughness. The design/methodology/approach of these numerical solutions is the finite element analysis by a commercial software COMSOL Multiphysics version 5.6. The choice of consideration of sinusoidal heating gives a better analysis of heat transfer analysis in this square geometry with wavy wall and with adiabatic block inside has not been investigated by numerical or experimental basis before and therefore, it is this motivation that results in this numerical investigation.","PeriodicalId":206268,"journal":{"name":"Journal of Intelligent Mechanics and Automation","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131839208","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
The Jansen Walking Robot 詹森行走机器人
Journal of Intelligent Mechanics and Automation Pub Date : 1900-01-01 DOI: 10.55571/jima.2022.04024
Maul Haque, Akash Nandi, A. K. Nandi
{"title":"The Jansen Walking Robot","authors":"Maul Haque, Akash Nandi, A. K. Nandi","doi":"10.55571/jima.2022.04024","DOIUrl":"https://doi.org/10.55571/jima.2022.04024","url":null,"abstract":"The main purpose of this project is to make a versatile robot that can run-over any solid surfaces no matter the condition of surface. We are archiving this benefit by using Theo Jansen Mechanism. This is popular among legged robotics researchers due to its scalable design, energy efficiency, and low payload to machine load ratio, bio-inspired locomotion, and deterministic foot trajectory among others. It is an eight-legged robot which can walk in wet and dry soil, sand, any type of slope (up to 45o) and also climb stairs. It is using simple mechanism to overcome obstacles, which height is below the maximum height of the leg path by our Theo robot. This mechanism is able to carry loads without any high forces applied to it. By including IOT to our project, we can archive more.","PeriodicalId":206268,"journal":{"name":"Journal of Intelligent Mechanics and Automation","volume":"44 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113957039","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
Optimization an Off-Road Vehicle Seat Suspension by Metaheuristic Method 基于元启发式方法的越野车座椅悬架优化
Journal of Intelligent Mechanics and Automation Pub Date : 1900-01-01 DOI: 10.55571/jima.2022.04021
M. Gohari, Mona Tahmasebi
{"title":"Optimization an Off-Road Vehicle Seat Suspension by Metaheuristic Method","authors":"M. Gohari, Mona Tahmasebi","doi":"10.55571/jima.2022.04021","DOIUrl":"https://doi.org/10.55571/jima.2022.04021","url":null,"abstract":"Passenger seat is main part of vehicle which has direct effect on transmitted vibration to the body. Seat suspension can remove unwanted and harmful vibration if right parameters were selected. Each human body organs has specific natural frequency. When vehicle vibration reaches to this frequency range, resonance will occur, and this phenomenon is harmful in long term. Usually lumped models were used to predict human body response to vibration. In this paper, via Qassem biodynamic model, the relative displacement of lumbar spine seat to spine vibration transmissibility was minimized by artificial neural network method. By this technique, optimal spring constant and damping coefficient were found and verified.","PeriodicalId":206268,"journal":{"name":"Journal of Intelligent Mechanics and Automation","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133064498","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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