International Journal of Vehicle Structures and Systems最新文献_第3页

RS/AS and Nugget Zone SEM Analysis and Mathematical Equations for Parameter Optimization on Friction Stir Welding Tool 搅拌摩擦焊工具RS/AS和熔核区SEM分析及参数优化数学方程

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.26

M. Yugandhar, M. Mothilal, B. Manjunatha, T. Dhamothara Kannan, Md. Saad Patel, S. Nallusamy

引用次数: 0

Implementation of Enhanced Chimp Optimization Algorithm in Cognitive Radio Networks for Vehicular Mobile Communication 增强黑猩猩优化算法在车载移动通信认知无线网络中的实现

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.10

S. Vidhya, Hamza Mohammed Ridha Al-Khafaji, M. Sathya Priya, Bolganay Kaldarova, C.M. Velu, K. Bhavana Raj, Zhanar Togzhanova

{"title":"Implementation of Enhanced Chimp Optimization Algorithm in Cognitive Radio Networks for Vehicular Mobile Communication","authors":"S. Vidhya, Hamza Mohammed Ridha Al-Khafaji, M. Sathya Priya, Bolganay Kaldarova, C.M. Velu, K. Bhavana Raj, Zhanar Togzhanova","doi":"10.4273/ijvss.15.3.10","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.10","url":null,"abstract":"In recent years, 6G technology has been extended to many different applications, especially mobile communications. As a result, the volume of mobile data increases, which poses a problem with the load on the plane of control (IoE, IoT). This problem is solved by efficient use of resources and reduced power consumption in cognitive radio networks (CRNs). In the literature, many methods have been developed by researchers to control spectrum sensing as well as energy -efficient operation, but they still need to be improved to improve system efficiency and processing power. Therefore, in this paper, an energy efficient method for Opposition Function -based Chimpanzee Optimization Algorithm (OFCOA) is developed in CRN for energy management as well as resource allocation. The proposed method is a combination of Opposition Function (OF) and Chimpanzee Optimization Algorithm (COA). In COAs, the optimal decision process is enhanced by the use of OF. The proposed method provides energy efficient operation in CRN through energy management taking into account spectrum measurements. The proposed method was tested under four Primary User (PU) and Secondary User (SU) conditions with channel occupation and CRN findings. The proposed methodology is implemented in MATLAB and performance is measured based on performance metrics such as processing power, network life, transmission rate, delay, flush, power consumption and overhead. The performance of the proposed methodology is compared with traditional methods such as Chimpanzee Optimization Algorithm (COA), Whale Optimization Algorithm (WOA) and Particle Swarm Optimization (PSO).","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135251988","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

Effect of Fiber Length and Loading on the Mechanical Characterization of Cyperus Pangorei Fiber Reinforced Vinyl Ester Composites 纤维长度和载荷对香蒲纤维增强乙烯基酯复合材料力学性能的影响

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.11

N. Balaji, T.G. Arul, M.A. Madhloom, Venkatesh Wadki, Ashok Kumar, S. Saravanakumar, Raghavan Santhanam, V.K. Krishnan

{"title":"Effect of Fiber Length and Loading on the Mechanical Characterization of Cyperus Pangorei Fiber Reinforced Vinyl Ester Composites","authors":"N. Balaji, T.G. Arul, M.A. Madhloom, Venkatesh Wadki, Ashok Kumar, S. Saravanakumar, Raghavan Santhanam, V.K. Krishnan","doi":"10.4273/ijvss.15.3.11","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.11","url":null,"abstract":"Polymer composites fabricated using plant fibers have become a dominant role in number of industries due to the outstanding results of their physical and mechanical characteristics when compared to traditional materials. The current study aims to develop lightweight and affordable composite materials using Cyperus pangorei fiber (CPF) and a vinyl ester (VE) resin matrix. Comparing the characteristics of composite materials created with different fiber lengths (3 to 11 mm) and contents (10 to 50% weight). The composite with 7mm fiber length and 40% of fiber content demonstrated the highest level of stability among the various fiber weight and lengths percentages tested. A composite system's fiber contents have a significant impact on its overall performance. The bonding of fibers and matrix of the specimens were good, according to SEM analysis. As a result, the current study suggests that the optimal CPF-reinforced VE composites would be a capable substitute to traditional materials for value-added engineering products.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135251989","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

Effects of Al2O3 Concentration in Ethylene Glycol on Convection Heat Transfer Coefficient 乙二醇中Al2O3浓度对对流换热系数的影响

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.12

Kusammanavar Basavaraj, K. Elangovan, S. Shankar, S. Satyanarayan

引用次数: 0

Coordination Control Algorithm for Wheel Torque of Parallel Hybrid Vehicle 并联混合动力汽车车轮转矩协调控制算法

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.19

J.X. Ma, B.B. Lu, X.F. Lin

{"title":"Coordination Control Algorithm for Wheel Torque of Parallel Hybrid Vehicle","authors":"J.X. Ma, B.B. Lu, X.F. Lin","doi":"10.4273/ijvss.15.3.19","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.19","url":null,"abstract":"When the Parallel Hybrid Vehicle (PHV) wheel’s torque is coordinated and controlled, the issue of coordination control of wheel torque under mode switching has some limitations. Therefore, the experiment proposed a novel wheel torque coordination control technique for parallel hybrid vehicles. The feedforward and feedback joint control technique of the Wheel Drive Torque (WDT) control algorithm may be used to implement the wheel torque drive control. The technique for the wheel braking Torque Control (TC) is applied to obtain the wheel braking torque through the Fuzzy PID controller (F-PID). A Dynamic Coordination Controller (DCC) is created and the engine output torque is adjusted using the PID control technique of wheel angular velocity difference. The motor provides the compensation torque. The deviation of the intended angular velocity from the actual angular velocity is adjusted intime to realize the wheel's dynamic coordination while being controlled by a mode switch. The results demonstrates that the reaction time of the proposed algorithm can be reduced to 0.08s; The overall output TC precision is improved by 11.1%. The precision of the predicted velocity of vehicle speed tracking has risen by 8.0%. The vehicle dynamics during the transition procedure is improved by 4.4%, which enhances the ride comfort and the PHV’s power.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135251992","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

Addition of Coconut Shell Ash Particle with AZ31 Magnesium Alloy - Assessment of Tribological and Mechanical Behaviour AZ31镁合金中添加椰壳灰颗粒的摩擦学和力学性能评价

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.05

S. Kanthasamy, T.S. Ravikumar, T. Tamilanban, V. Hariram, C. Parthasarathy, K. Eswar Sriram, S.K. Siraj Basha, Pathan Sajid Khan

引用次数: 0

Research on Power Control Strategy of Automotive Fuel Cell based on Sag Control and Fuzzy Logic 基于凹陷控制和模糊逻辑的汽车燃料电池功率控制策略研究

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.22

F. Wang, Q.Z. Mei, X.L. Xin

{"title":"Research on Power Control Strategy of Automotive Fuel Cell based on Sag Control and Fuzzy Logic","authors":"F. Wang, Q.Z. Mei, X.L. Xin","doi":"10.4273/ijvss.15.3.22","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.22","url":null,"abstract":"Fuel cell vehicles powered by proton, exchange membrane fuel cell systems. They have gained widespread attention for their unique environmental advantages. Pure fuel cell system usually uses hybrid power system because of its soft output and slow dynamic response. The study takes the automotive fuel cell power system as the research object, designs a power control strategy based on DC voltage sag control and fuzzy logic and proves its effectiveness by simulation for different working conditions. The simulation results show that under CYC_UDDS conditions, the bus voltage curve of the power system changes smoothly and the voltage fluctuation range is 580~612V, which satisfies the 5% voltage accuracy. And the SOC of the battery is relatively smooth in the whole cycle condition, maintaining between 0.685 and 0.715. Its slightly increasing, which is in the line with the design goal of maintaining SOC of the battery near 0.7. The scheme proposed in the study helps to solve the problems of difficult design implementation, large number of calculations, poor real-time performance and complex structure of the current existing control strategies.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135251995","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 of Fixture Layout and Clamping Force in a Concurrent Environment to Improve the Part Quality in Milling Operations 在并行环境下优化夹具布局和夹紧力以提高铣削加工中的零件质量

International Journal of Vehicle Structures and Systems Pub Date : 2023-07-12 DOI: 10.4273/ijvss.15.2.09

F. Rex, S. Palani, P. Gopi

{"title":"Optimization of Fixture Layout and Clamping Force in a Concurrent Environment to Improve the Part Quality in Milling Operations","authors":"F. Rex, S. Palani, P. Gopi","doi":"10.4273/ijvss.15.2.09","DOIUrl":"https://doi.org/10.4273/ijvss.15.2.09","url":null,"abstract":"Fixture layout design (FLD) determines the specific position of locators and clamps to position and support the workpiece with respect to a machine tool. The FLD approaches that use Finite Element Analysis (FEA) are widely used in previous works, and it becomes computationally expensive and specific to a particular problem. Further, the FLD and clamping force optimization were often performed separately, ignoring their interdependence. In the present work, to maximize the dimensional and form quality of the part, the reaction forces of the locators are made uniformly distributed by suitably varying the fixture layout and clamping force. The parametric rigid body model is used to depict the behaviour of the workpiece-fixture system, and it is incorporated with the genetic algorithm to optimize the design variables. A prismatic workpiece with slot milling operation is considered to validate the proposed methodology. Stability criterion and tool-fixture interference are considered constraints. Subsequently, FEA is used to verify the integrity of the proposed approach. The results infer that the uniformity in distribution of maximum elastic deformation of the workpiece is achieved due to the uniform distribution of reaction forces. Further, the effects of cutting forces on fixture layout and clamping forces are studied.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79579605","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

Topology Optimization of Wing Ribs for Additive Manufacturing 面向增材制造的翼肋拓扑优化

International Journal of Vehicle Structures and Systems Pub Date : 2023-07-12 DOI: 10.4273/ijvss.15.2.16

Q.S. Wang, S.Y. Wang, A. H. Li

引用次数: 0

Tensile Test on Friction Stir Welded AZ31B and AZ91B Magnesium Alloys AZ31B和AZ91B镁合金搅拌摩擦焊接的拉伸试验

International Journal of Vehicle Structures and Systems Pub Date : 2023-07-12 DOI: 10.4273/ijvss.15.2.25

M. Yugandhar, B. D. Naik, P. Kammar

{"title":"Tensile Test on Friction Stir Welded AZ31B and AZ91B Magnesium Alloys","authors":"M. Yugandhar, B. D. Naik, P. Kammar","doi":"10.4273/ijvss.15.2.25","DOIUrl":"https://doi.org/10.4273/ijvss.15.2.25","url":null,"abstract":"Rare earth materials containing magnesium alloy AZ91B and AZ31B is finding widespread use in the automotive, aerospace and military industries due to its greater strength-to-weight ratio and formability. Magnesium is typically regarded as difficult to fuse together through material fusion procedures due to flaws found in welding inclusions, porosity and welded junction distortions. Friction stir welding solid state joining procedure is used for Mg joining alloys successfully. The process variables influencing the combined characteristics of weldments include tool pin geometry, downward axial force, tool welding speed (rpm). In the current research, five distinct tool types were used to create friction stir weldment geometries. There were 18 trials overall with 3 components and 8 stages run in accordance with the primary composite design matrix. The information produced by a mathematical model through response surface approach was sufficient for the developed ANOVA was used to verify the model. Large interaction between welding parameters and tensile strength graphs are utilised to depict its behaviour. It was discovered that the cylindrical straight pin has the greatest tensile qualities. The mathematical model is beneficial for adjusting the tensile strength forecast to enhance the weld quality by choosing suitable process parameters for AZ31B and AZ91B welded magnesium alloys.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"48 5 Suppl 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88137484","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