Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/31044
Bibin N. Baby, Niranjan Hiremath
An electric vehicle also called as EV is a vehicle that make use of the electric motors for its operation. It can be operated by a set electronics system, with power from an external battery source also from the solar panels and sometimes from converting fuel to electricity using fuel cells. This project is mainly focused on the comfort and handling area of the EV’s and hence worked more on the suspension system. Suspension system is basically used to gain good road holding while driving, cornering events and sudden braking conditions and also to keep the proper steering geometry while various road conditions. Another important reason for suspension system is to offer comfort to the occupants against road shocks and provide a riding comfort. In this project, we extensively worked on the suspension system types, its design, optimization and manufacturing aspects for the initial prototype. A – Arm suspension system was selected for the study and an initial concept of the suspension system was made using Creo Parametric Software and then the optimization was performed using M.Sc Adams software for better handling behavior. Manufacturing drawing were also created for initial prototype build.
{"title":"Design and Optimiozation of Front A – Arm Suspension System for Speciqal Purpose Electric Vehicle","authors":"Bibin N. Baby, Niranjan Hiremath","doi":"10.18311/jmmf/2022/31044","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31044","url":null,"abstract":"An electric vehicle also called as EV is a vehicle that make use of the electric motors for its operation. It can be operated by a set electronics system, with power from an external battery source also from the solar panels and sometimes from converting fuel to electricity using fuel cells. This project is mainly focused on the comfort and handling area of the EV’s and hence worked more on the suspension system. Suspension system is basically used to gain good road holding while driving, cornering events and sudden braking conditions and also to keep the proper steering geometry while various road conditions. Another important reason for suspension system is to offer comfort to the occupants against road shocks and provide a riding comfort. In this project, we extensively worked on the suspension system types, its design, optimization and manufacturing aspects for the initial prototype. A – Arm suspension system was selected for the study and an initial concept of the suspension system was made using Creo Parametric Software and then the optimization was performed using M.Sc Adams software for better handling behavior. Manufacturing drawing were also created for initial prototype build.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44571554","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/32945
Madhu B P, G. Mahendramani
Aerodynamic is an important aspect in consideration with regard to automotive design. Efficient diagnosis of aerodynamic forces’ effect on a car body becomes necessary when automobiles run at very high speed. In recent days, almost all automobile products coming into the market are designed considering the effect of aerodynamic forces. The objective of this analysis is to simulate the flow of air over a car body and to estimate the effect of aerodynamic forces like drag and lift. The prediction of drag becomes necessary for vehicle running at higher speeds, may lead to higher fuel consumption, dropping the efficiency. The induced “LIFT” will disconnect wheels and road, which may lead to accidents. The current analysis we are performing, will analyze the effect of these forces on car, with and without spoiler, to understand the spoiler’s presence helping in reducing the drag and its contribution to increase the efficiency of the car. Hypermesh is used for pre-processing and ANSYS Fluent is used as a solver and post processor.
{"title":"To study the Aerodynamic Effects of Spoiler of a Car (Sedan – Segment) using Computational Fluid Dynamics","authors":"Madhu B P, G. Mahendramani","doi":"10.18311/jmmf/2022/32945","DOIUrl":"https://doi.org/10.18311/jmmf/2022/32945","url":null,"abstract":"Aerodynamic is an important aspect in consideration with regard to automotive design. Efficient diagnosis of aerodynamic forces’ effect on a car body becomes necessary when automobiles run at very high speed. In recent days, almost all automobile products coming into the market are designed considering the effect of aerodynamic forces. \u0000The objective of this analysis is to simulate the flow of air over a car body and to estimate the effect of aerodynamic forces like drag and lift. The prediction of drag becomes necessary for vehicle running at higher speeds, may lead to higher fuel consumption, dropping the efficiency. The induced “LIFT” will disconnect wheels and road, which may lead to accidents. The current analysis we are performing, will analyze the effect of these forces on car, with and without spoiler, to understand the spoiler’s presence helping in reducing the drag and its contribution to increase the efficiency of the car. Hypermesh is used for pre-processing and ANSYS Fluent is used as a solver and post processor.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42181642","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/31218
J.C. Chrislin Mario, Y. Christabel Shaji, Y. Brucely, S. Ajith Sinthuja, A. Bovas Herbert Bejaxhin, N. Ramanan
Both the polyester resin matrix-based polymer ZnO nano composites and pure polyester sheet were synthesised using the solution casting method. The crystalline structure of the nano-particles was examined inside using X-ray diffraction (XRD). The fundamental polymer composition, additives, organic contaminants, and purity were all assessed by FTIR. A minor alteration in the absorption bands was seen in the polyester system with ZnO added. The thermal properties were examined using differential scanning calorimetry (DSC) and thermo gravimetric analysis (TGA), and the results unmistakably demonstrated the creation of a highly cross-linked polyester molecular structure or improved free volume fractions in polymer nano composites. A mechanical analyzer’s tensile and flexural strength tests revealed the potential for nanoparticle aggregation due to a strong interaction with resin. To calculate the relative permittivity and the loss of tangents (tan), dielectric studies had been used. Analysis of the hydrophobic properties of the pure and ZnO polyester nano composite.
{"title":"ZnO Polymer Nano Composites Synthesis, Characterization, and Thermo-Mechanical Property Comparison","authors":"J.C. Chrislin Mario, Y. Christabel Shaji, Y. Brucely, S. Ajith Sinthuja, A. Bovas Herbert Bejaxhin, N. Ramanan","doi":"10.18311/jmmf/2022/31218","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31218","url":null,"abstract":"Both the polyester resin matrix-based polymer ZnO nano composites and pure polyester sheet were synthesised using the solution casting method. The crystalline structure of the nano-particles was examined inside using X-ray diffraction (XRD). The fundamental polymer composition, additives, organic contaminants, and purity were all assessed by FTIR. A minor alteration in the absorption bands was seen in the polyester system with ZnO added. The thermal properties were examined using differential scanning calorimetry (DSC) and thermo gravimetric analysis (TGA), and the results unmistakably demonstrated the creation of a highly cross-linked polyester molecular structure or improved free volume fractions in polymer nano composites. A mechanical analyzer’s tensile and flexural strength tests revealed the potential for nanoparticle aggregation due to a strong interaction with resin. To calculate the relative permittivity and the loss of tangents (tan), dielectric studies had been used. Analysis of the hydrophobic properties of the pure and ZnO polyester nano composite.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41910283","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/31226
Vijaya Kumara V M, Aswatha, Vignesh Kumar, Tejus R Mandal, Shankar V
Various simulations and numerical studies have been carried out for free convection heat transfer of a square enclosure filled with porous matrix for sinusoidal and uniform heating conditions also varying Rayleigh values from 1 to 500 by using a mathematical finite element simulation. The porous media chosen for this research is saturated water medium (H2O).The enclosure properties have been predefined as follows: The top and base walls of the enclosure are made adiabatic, whereas the right wall is kept at a steady cold temperature. The hot left wall is treated at varying temperatures. The Nusselt values as well as mean Nusselt values have been quantified for the aforementioned values. It has been observed that the mean Nusselt values rise with the surge in Rayleigh values. For the Rayleigh value of 500, we found that uniform heating condition showed larger values of streamline function when compared to Sinusoidal heating conditions. These simulations were performed by considering a Solar Fresnel as a real-world example. We hope that scholars and engineers collectively working on enhancing or aspiring to numerically model the thermal exchange through a square enclosure filled porous matrix will benefit from the information provided in this research article.
{"title":"Thermal Management for Natural Convection within Porous Enclosures","authors":"Vijaya Kumara V M, Aswatha, Vignesh Kumar, Tejus R Mandal, Shankar V","doi":"10.18311/jmmf/2022/31226","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31226","url":null,"abstract":"Various simulations and numerical studies have been carried out for free convection heat transfer of a square enclosure filled with porous matrix for sinusoidal and uniform heating conditions also varying Rayleigh values from 1 to 500 by using a mathematical finite element simulation. The porous media chosen for this research is saturated water medium (H2O).The enclosure properties have been predefined as follows: The top and base walls of the enclosure are made adiabatic, whereas the right wall is kept at a steady cold temperature. The hot left wall is treated at varying temperatures. The Nusselt values as well as mean Nusselt values have been quantified for the aforementioned values. It has been observed that the mean Nusselt values rise with the surge in Rayleigh values. For the Rayleigh value of 500, we found that uniform heating condition showed larger values of streamline function when compared to Sinusoidal heating conditions. These simulations were performed by considering a Solar Fresnel as a real-world example. We hope that scholars and engineers collectively working on enhancing or aspiring to numerically model the thermal exchange through a square enclosure filled porous matrix will benefit from the information provided in this research article.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46628461","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/32939
Praveenkumara B M, B Sadashive Gowda, Naveen H V
In this paper, the effects of integrated fins on the thermal performance of the concentric tube heat exchanger with a variable flow rate of hot and cold water are discussed. The inner pipe is made of copper pipe of length = 800 mm, OD=30 mm, ID=26 mm, t=2 mm. the integrated fines of the geometry 1.25 mm and 1.5 mm pitch length, 1 mm of the depth of cut are considered in the study. The thermal performance of the heat exchanger with a flow rate of hot and cold fluids ranges from 0.014 kg s- 1 to 0.07 kg s-1 and the effects of parallel and counter flow direction are also discussed in detail. The experimental result confirms that the thermal performance of the concentric tube heat exchanger is more in the case of the tube with integrated fins and counter flow direction with the highest flow rate of water in the pipe and annulus of the heat exchanger.
本文讨论了一体化翅片对变冷热流量同心管换热器热工性能的影响。内管采用长度为800 mm，外径为30 mm，内径为26 mm, t=2 mm的铜管，考虑几何长度为1.25 mm和节距长度为1.5 mm，切割深度为1 mm的综合细管。研究了冷热流体流量为0.014 ~ 0.07 kg s-1时换热器的热学性能，并详细讨论了平行和反方向对换热器热学性能的影响。实验结果证实，同心管式换热器的热工性能更多地体现在一体化翅片管和逆流方向的情况下，管内和换热器环空中水流流速最高。
{"title":"Experimental Investigation of the Effect of Integrated Fins on Heat Transfer Rate of Double Pipe Heat Exchanger","authors":"Praveenkumara B M, B Sadashive Gowda, Naveen H V","doi":"10.18311/jmmf/2022/32939","DOIUrl":"https://doi.org/10.18311/jmmf/2022/32939","url":null,"abstract":"In this paper, the effects of integrated fins on the thermal performance of the concentric tube heat exchanger with a variable flow rate of hot and cold water are discussed. The inner pipe is made of copper pipe of length = 800 mm, OD=30 mm, ID=26 mm, t=2 mm. the integrated fines of the geometry 1.25 mm and 1.5 mm pitch length, 1 mm of the depth of cut are considered in the study. The thermal performance of the heat exchanger with a flow rate of hot and cold fluids ranges from 0.014 kg s- 1 to 0.07 kg s-1 and the effects of parallel and counter flow direction are also discussed in detail. The experimental result confirms that the thermal performance of the concentric tube heat exchanger is more in the case of the tube with integrated fins and counter flow direction with the highest flow rate of water in the pipe and annulus of the heat exchanger.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135748166","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/32947
C. Rajesh Babu, Sukanta Roy
An axial steam turbine stage has both stationary and rotating components, which are coupled together in a CFD model by multiple frames of reference. There are three types of interface techniques available to exchange the information between the different frames of reference namely frozen rotor, stage, transient stator rotor. Both frozen rotor and stage interfaces are used in steady state analysis. The operation of axial turbine is inherently an unsteady process. The aerodynamic interaction between the rotating part and the stationary parts are the important contributor to the unsteadiness of the flow present in the turbine. Neither of the two interfaces implemented in the steady state CFD analysis is capable of predicting the unsteady effects resulting from the rotor-stator interaction due to their relative position change. The third type of interface, the transient stator-rotor interface, is available to simulate the fluid motion caused by the relative movement between a rotor and stationary components in axial turbine. Although enormous computer resources are needed for this modelling, it simulates real flow physics best of all, while steady or quasi-steady numerical approaches only approximate the real flow, because they neglect important effects of blade row interactions. The paper presents the CFD analysis carried out for an axial steam turbine stage with three different interface techniques and compares the results.
{"title":"CFD Analysis of a Transient Rotor-Stator Axial Steam Turbine Stage","authors":"C. Rajesh Babu, Sukanta Roy","doi":"10.18311/jmmf/2022/32947","DOIUrl":"https://doi.org/10.18311/jmmf/2022/32947","url":null,"abstract":"An axial steam turbine stage has both stationary and rotating components, which are coupled together in a CFD model by multiple frames of reference. There are three types of interface techniques available to exchange the information between the different frames of reference namely frozen rotor, stage, transient stator rotor. Both frozen rotor and stage interfaces are used in steady state analysis. The operation of axial turbine is inherently an unsteady process. The aerodynamic interaction between the rotating part and the stationary parts are the important contributor to the unsteadiness of the flow present in the turbine. Neither of the two interfaces implemented in the steady state CFD analysis is capable of predicting the unsteady effects resulting from the rotor-stator interaction due to their relative position change. The third type of interface, the transient stator-rotor interface, is available to simulate the fluid motion caused by the relative movement between a rotor and stationary components in axial turbine. Although enormous computer resources are needed for this modelling, it simulates real flow physics best of all, while steady or quasi-steady numerical approaches only approximate the real flow, because they neglect important effects of blade row interactions. The paper presents the CFD analysis carried out for an axial steam turbine stage with three different interface techniques and compares the results.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46456671","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/32935
Laxmi. B. Wali, C. V. Chandrasekhara
Energy harvesting is extracting energy from ambient sources. Vibration energy harvesting area have received attention of many researchers to power wireless sensors and low-power electronic devices from smart materials. In literature, authors have focused on analytical and finite element models of cantilever beam with tip mass. The paper focuses on the novel numerical technique for orientated cantilever beam bounded with piezoelectric patches and mounted with tip mass using the direct method with non-orthonormalisation to derive the frequency response function (FRF) for voltage, current and power output. MatLab programme is developed considering the Euler Bernoulli beam assumptions, constitutive equations of piezoelectric material and Hamilton’s principle. The MatLab programme is validated with the previous work on orthonormalisation electro-mechanical finite element for unimorph beam and good agreement is obtained. The dynamic characteristics of considered model is presented and optimized parameters are obtained.
{"title":"Modelling and Optimization of Orientated Beam with Tip Mass for Vibration Energy Harvesting using Piezoelectric Patches","authors":"Laxmi. B. Wali, C. V. Chandrasekhara","doi":"10.18311/jmmf/2022/32935","DOIUrl":"https://doi.org/10.18311/jmmf/2022/32935","url":null,"abstract":"Energy harvesting is extracting energy from ambient sources. Vibration energy harvesting area have received attention of many researchers to power wireless sensors and low-power electronic devices from smart materials. In literature, authors have focused on analytical and finite element models of cantilever beam with tip mass. The paper focuses on the novel numerical technique for orientated cantilever beam bounded with piezoelectric patches and mounted with tip mass using the direct method with non-orthonormalisation to derive the frequency response function (FRF) for voltage, current and power output. MatLab programme is developed considering the Euler Bernoulli beam assumptions, constitutive equations of piezoelectric material and Hamilton’s principle. The MatLab programme is validated with the previous work on orthonormalisation electro-mechanical finite element for unimorph beam and good agreement is obtained. The dynamic characteristics of considered model is presented and optimized parameters are obtained.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49498214","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/31213
T. Prabaharan, A. Bovas Herbert Bejaxhin, S. Dhanabalan, N. Ramanan, Dilli Babu R
Complex geometries and porous components are very difficult to manufacture using traditional methods. Powder metallurgy is a metal forming process that allows complex shapes to be easily formed without loss of material. Metal matrix composites are used for high thermal conductivity and high wear resistance. In Al-B4CP, the composition of boron carbide is changed by 5%, 10%, 15%, and 20%. Al-SiCp composites maintain similar weight fractions. The blended mixture is compacted and sintered to the required standard sample size. After heat treatment, samples are tested for wear rate using a pin-on-disc wear tester, which is analyzed with analysis software.
{"title":"Wear Analysis and Experimentation of Sintered Al-SiCp and Al-B4Cp Composites with Deformation Predictions","authors":"T. Prabaharan, A. Bovas Herbert Bejaxhin, S. Dhanabalan, N. Ramanan, Dilli Babu R","doi":"10.18311/jmmf/2022/31213","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31213","url":null,"abstract":"Complex geometries and porous components are very difficult to manufacture using traditional methods. Powder metallurgy is a metal forming process that allows complex shapes to be easily formed without loss of material. Metal matrix composites are used for high thermal conductivity and high wear resistance. In Al-B4CP, the composition of boron carbide is changed by 5%, 10%, 15%, and 20%. Al-SiCp composites maintain similar weight fractions. The blended mixture is compacted and sintered to the required standard sample size. After heat treatment, samples are tested for wear rate using a pin-on-disc wear tester, which is analyzed with analysis software.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48194128","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/31049
C. Hampali, Basawaraj, V. Koti, J. N, Basavaraju S
Natural fibres possess convincing properties when reinforced in polymers. In this study, JFRPs viscoelastic behaviour at low and elevated temperatures were explored. The present work focuses on the fabrication of jute reinforced polyester based polymer composites with different fiber compositions. Untreated long Jute fibres and mat structured Jute fibres were used for preparing the specimens. The Dynamic Mechanical Analysis (DMA) test was carried out on selected developed Polymer Matrix Composites (PMC). Density of selected PMCs are nearly equal to the bone density. So, PMC specimens were considered to carry out thermal analysis using DMA. In particular, by dynamic mechanical analysis experiments, properties such as storage modulus, loss modulus, tanδ and glass transition temperature were determined. It was found that the storage modulus (E’) recorded above the glass transition temperature (Tg) varies with increase in temperature. Along with the previous research of material properties for possible bioimplantation, this Tg value is identified for possible implementation as patella bone implant. The loss modulus (E”) and damping peaks (Tan δ) values were found to be reduced with increasing matrix loading and temperature.
{"title":"Dynamic Mechanical Analysis on Jute Fiber Reinforced Polymer Composites for Patella Implant","authors":"C. Hampali, Basawaraj, V. Koti, J. N, Basavaraju S","doi":"10.18311/jmmf/2022/31049","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31049","url":null,"abstract":"Natural fibres possess convincing properties when reinforced in polymers. In this study, JFRPs viscoelastic behaviour at low and elevated temperatures were explored. The present work focuses on the fabrication of jute reinforced polyester based polymer composites with different fiber compositions. Untreated long Jute fibres and mat structured Jute fibres were used for preparing the specimens. The Dynamic Mechanical Analysis (DMA) test was carried out on selected developed Polymer Matrix Composites (PMC). Density of selected PMCs are nearly equal to the bone density. So, PMC specimens were considered to carry out thermal analysis using DMA. In particular, by dynamic mechanical analysis experiments, properties such as storage modulus, loss modulus, tanδ and glass transition temperature were determined. It was found that the storage modulus (E’) recorded above the glass transition temperature (Tg) varies with increase in temperature. Along with the previous research of material properties for possible bioimplantation, this Tg value is identified for possible implementation as patella bone implant. The loss modulus (E”) and damping peaks (Tan δ) values were found to be reduced with increasing matrix loading and temperature.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43059904","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}
Pub Date : 2023-03-15DOI: 10.18311/jmmf/2022/31220
Likhith M, Deepak S A
In today’s competitive global market, industries and manufacturing companies demand adjustable sizes, higher quality, flexibility, and shorter lead time types of products to be manufactured. Companies need to attain customer satisfaction and cost reduction in production operations. A material Handling System is a way to accomplish this goal since they directly impact production. This study aims to design an in-house Material Handling system that could be efficient for the production it serves. The material handling system design was made to pick and place the head expander on the vibrating machine from the floor beside the machine. The vibration testing components are placed on the head expander where it is placed on the vibration machine to check the frequencies the component can absorb. This componentis used in aerospace industries. The material used for building the Material Handling System is mild steel. By analyzing the possibilities from literature review and empirical study first problems and challenges related to material handling system are identified, then possible features that the system should possess are observed and design is built according to the selected features. The design of this Material Handling System is made by using Solid works software. The developed model is further analyzed by the boundary condition for total deformation when the constant load acts on the model at different places. Dynamic analysis to be made for the vibration absorbed by the material handling system. Here both static and dynamic analysis is made forthe structural model using ANSYS WORKBENCH software.
{"title":"Design and Analysis of Material Handling System","authors":"Likhith M, Deepak S A","doi":"10.18311/jmmf/2022/31220","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31220","url":null,"abstract":"In today’s competitive global market, industries and manufacturing companies demand adjustable sizes, higher quality, flexibility, and shorter lead time types of products to be manufactured. Companies need to attain customer satisfaction and cost reduction in production operations. A material Handling System is a way to accomplish this goal since they directly impact production. This study aims to design an in-house Material Handling system that could be efficient for the production it serves. The material handling system design was made to pick and place the head expander on the vibrating machine from the floor beside the machine. The vibration testing components are placed on the head expander where it is placed on the vibration machine to check the frequencies the component can absorb. This componentis used in aerospace industries. The material used for building the Material Handling System is mild steel. By analyzing the possibilities from literature review and empirical study first problems and challenges related to material handling system are identified, then possible features that the system should possess are observed and design is built according to the selected features. The design of this Material Handling System is made by using Solid works software. The developed model is further analyzed by the boundary condition for total deformation when the constant load acts on the model at different places. Dynamic analysis to be made for the vibration absorbed by the material handling system. Here both static and dynamic analysis is made forthe structural model using ANSYS WORKBENCH software.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46790911","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}
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