International Journal of Vehicle Structures and Systems最新文献

A Review of Wheel-Rail Contact Mechanics for Railway Vehicles 轨道车辆轮轨接触力学研究进展

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.15

Sono Bhardawaj, Rakesh Chandmal Sharma, Punit Gupta, Ritvik Dobriyal, Ashwini Sharma, Mayank Pant

{"title":"A Review of Wheel-Rail Contact Mechanics for Railway Vehicles","authors":"Sono Bhardawaj, Rakesh Chandmal Sharma, Punit Gupta, Ritvik Dobriyal, Ashwini Sharma, Mayank Pant","doi":"10.4273/ijvss.15.3.15","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.15","url":null,"abstract":"The dynamic behaviour of a railway vehicle is mainly depending on how the interaction of wheel and rail is taking place in running operation and what is the accuracy and efficiency of the applied contact models. Contact mechanics of railway vehicle is keyed with the history of the wheel-rail contact mechanics. For a designer of braking and traction control systems, it is essential to go through the fundamental knowledge of forces produced due to contact of wheel-rail and geometric constraints as well as moments to assess the wheel-rail wear and to evaluate the ride performance indices. This article gives a brief review to the evolution and present scenario of the previously published contact theories to get rid of the wheel-rail contact problems. The key theories which have most attention to solve normal contact problems are Hertzian contact theory as well as non-Hertzian contact theory, whereas, to tackle the problems related to tangential contact, linear as well as non-linear theories proposed by Kalker, theory proposed by Polach, FASTSIM, CONTACT etc are considered in this paper. This paper reviews the state-of-the-art of past studies based on experiments to study various contact models.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"67 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":"135251813","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

Compressive and Shear Strength of Kevlar based Nano Composites 凯夫拉基纳米复合材料的抗压和剪切强度

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.06

M. Mohammed Mohaideen, P.H.V. Sesha Talpa Sai, R. Ajith Raj, V.G. Krishna Anand

{"title":"Compressive and Shear Strength of Kevlar based Nano Composites","authors":"M. Mohammed Mohaideen, P.H.V. Sesha Talpa Sai, R. Ajith Raj, V.G. Krishna Anand","doi":"10.4273/ijvss.15.3.06","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.06","url":null,"abstract":"The Fibre Reinforced Composite (FRC) material consists of building materials in macroscopic level by having fibres and resin as reinforcement and matrix material respectively. It has different physical and chemical properties that were bonded together in order to get new material with different required characteristics from individual components. The properties of the composites are largely depending on the matrix and reinforcement materials. The matrix strengthening process by introduction of fine nano particles in composite laminate was done in this work. In order to study the effect of nano particles, the composite consists of Kevlar- 49 (K49) fibre in woven form with epoxy resin as matrix was considered. All the test specimens have been prepared with 12 layers of K49 to build 3mm thickness using vacuum bag moulding method. The K49 fibre in form of plain-woven type were chosen as reinforcement material. The nano fillers such as Titanium dioxide (TiO2), Calcium Carbonate (CaCO3) and Graphite powder (Gr) were used as nanomaterial added in the matrix and was compared with pure K49 reinforced composites for better performance. The TiO2, CaCO3 and GR nano fillers were constituted on various weight ratios in FRC. The structural properties like compression and shear strengths were determined as per ASTM standards. The fracture behaviour for all the categories of laminate has been detailed and reported using scanning electron microscope.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"25 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":"135251820","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 Exhaust Gas Recirculation on a CRDI Engine fuelled with Biodiesel, Ethanol and Butanol 以生物柴油、乙醇和丁醇为燃料的CRDI发动机废气再循环的影响

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.18

P. Yogesh, D. Chandramohan, N. Rajeswari, Sarangapani Palani

引用次数: 0

Tribological Behavior of Physical Vapor Deposition Coating for Punch and Dies: An Overview 冲模用物理气相沉积涂层的摩擦学性能综述

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.08

Yohanes Abebe, P. Sivaprakasam, Melaku Desta, J. Udayaprakash, M.P. Saravanan

引用次数: 0

Assessment of Performance and Emission Characteristics using Algae Biodiesel in an Additive Fuelled LHR Engine 藻类生物柴油在添加剂燃料LHR发动机中的性能和排放特性评估

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.01

Ramadoss Panchamoorthy, Ramaiyan Velappan, S. Sivaprakasam, M.L. Sundararajan

{"title":"Assessment of Performance and Emission Characteristics using Algae Biodiesel in an Additive Fuelled LHR Engine","authors":"Ramadoss Panchamoorthy, Ramaiyan Velappan, S. Sivaprakasam, M.L. Sundararajan","doi":"10.4273/ijvss.15.3.01","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.01","url":null,"abstract":"Automobiles use compression-ignition (CI) engines because they have more pulling power, are more dependable and use less fuel than spark-ignition (SI) engines. Both CI and SI engines use petroleum-based oils, contributing to environmental pollution like acid rain, ozone depletion and climate change. The cost of petroleum-based fuel is increasing daily due to demographic growth and the development of manufacturing industries. There are four phases to the experiments. The first stage involves mixing diesel with 20% of ALME, the outcomes showed that engine operation and combustion are comparable to conventional diesel fuel. In the second stage, an LHR engine tests 20% of ALME and the results showed that BTE of LHR engine had significantly increased. In comparison, NOx increases in LHR-operated CI engine, CO, HC and smoke emissions are significantly lower than with a conventional engine. The third stage looks at how NA interacts with biodiesel to affect conventional engine’s combustion, emission and engine performance. The prepared algae biodiesel is blended with NA in various ratios of 500ppm, 1000ppm, 1500ppm and 2000ppm. At 1000ppm concentration, NOx emission from conventional and LHR engines has been effectively minimized under load conditions. Concerning diesel fuel, emissions like CO, HC and smoke are significantly reduced for all loads. In the fourth stage, tests on the LHR engine are carried out using the SBME with NA in various proportions. When compared to base fuel, it has been found that NOx emission has decreased significantly at 1000ppm compared to conventional engines and other emissions have decreased.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"24 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":"135251819","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

Self-Healing Performance of Carbon Fibre Reinforced Composite Containing Microcapsules under Tensile Load 含微胶囊碳纤维增强复合材料在拉伸载荷下的自愈性能

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.02

Kanu Priya Jhanji, R. Asokan, R. Amit Kumar, C. Ramesh

{"title":"Self-Healing Performance of Carbon Fibre Reinforced Composite Containing Microcapsules under Tensile Load","authors":"Kanu Priya Jhanji, R. Asokan, R. Amit Kumar, C. Ramesh","doi":"10.4273/ijvss.15.3.02","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.02","url":null,"abstract":"Self-healing is fascinating research due to its distinctiveness in automatically mending the damages. A great deal of work has been done using the self-healing concept in polymers. However, there is limited research on fibre reinforced polymer composites. Adding microcapsules during fabrication of the composites is one of the methods which is capable of carrying out the healing of damage autonomously. This research work takes into account the preparation of fibre reinforced composites with incorporation of two types of microcapsules i.e., healing agent carriers and curing agent carriers in the course of fabrication to mend the damages generated. The work experiments the impact of inclusion of microcapsules on the tensile properties of host composite laminate. Results of tensile tests indicate that a significant amount of tensile strength of the specimens was restored by healing and curing agents present in microcapsules. The healing efficiency was observed as 61.3%. It has also been noted that, the presence of these capsules does not significantly alter the original performance of the laminate as the effect of capsule inclusion on properties of the laminate is negligible.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"17 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":"135251996","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

Convective Heat Transfer Study with an Array of Air Jets 射流阵列对流换热研究

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.04

Niranjan Murthy

引用次数: 0

Effect of Dwell Angle and Two-Stage Fueling Approach on the Engine Parameters of CRDi Engine using WCO Biodiesel Blends 停留角和两段加注方式对WCO生物柴油混合燃料CRDi发动机参数的影响

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.03

L.J. Fernandes, C.R. Rajashekhar

引用次数: 0

GWO based Robust Stabilization of DC Motor Fractional Order Speed Control System with Interval Coefficients 基于GWO的区间系数直流电机分数阶速度控制系统鲁棒镇定

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.14

Manjusha Silas, Surekha Bhusnur

{"title":"GWO based Robust Stabilization of DC Motor Fractional Order Speed Control System with Interval Coefficients","authors":"Manjusha Silas, Surekha Bhusnur","doi":"10.4273/ijvss.15.3.14","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.14","url":null,"abstract":"Robust stability analysis (RSA) is of significant concern for the robust behaviour of real-world control system applications. A stabilization strategy that assures stability and exhibits robust performance for a specified limit of system perturbations is necessary. This article presents an optimal robust stabilization method for a closed loop fractional order proportional integral derivative (FOPI^λD^µ) system involving DC motor with interval parametric uncertainty. To determine the optimum value of parameters for a FOPI^λD^µ controller to control the speed of a DC motor, Grey Wolf Optimizer (GWO), Genetic Algorithm (GA), Nelder-Mead (NM), Jaya and Whale Optimizer Algorithm (WOA) are applied with the same objective function involving ITAE criterion. FOPI^λD^µ offers two additional tuning parameters unlike a nominal PID controller and hence the former gives more flexibility in controller design than the latter in terms of transient response. The FOPID controller provides a faster closed-loop output augmented with improved robust properties of the system. Despite inherent non-linearities and time variation in system parameters, FOPI^λD^µ controllers depict enhanced performance. Using the concept of conformal mapping, robust stability analysis of fractional order polynomials is done with uncertain interval structure using Vertex and Edge theorem. Based on the value set, this paper demonstrates numerical and graphical optimal robust stability analysis of a system with variations observed in five parameters, considering the minimum argument root of the polynomial of the aforementioned closed-loop system.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"1 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":"135251990","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

Temperature and Pressure Drop Analysis of Automobile Minichannel Condenser using CFD 基于CFD的汽车小通道冷凝器温度和压降分析

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI: 10.4273/ijvss.15.3.25

Narhar K. Patil, Dhiresh S. Shastri, Jyoti M. Avhad, Vijay W. Bhatkar

{"title":"Temperature and Pressure Drop Analysis of Automobile Minichannel Condenser using CFD","authors":"Narhar K. Patil, Dhiresh S. Shastri, Jyoti M. Avhad, Vijay W. Bhatkar","doi":"10.4273/ijvss.15.3.25","DOIUrl":"https://doi.org/10.4273/ijvss.15.3.25","url":null,"abstract":"Refrigeration and air conditioning plays a vital role in domestic and industrial heating, cooling, refrigerating and ventilation but they are contributing to ozone layer depletion and global warming due to unfriendly refrigerants and consume 33% of the world energy. The condenser is an important component of the vapor compression system which contained 30% of the refrigerant charge. The versatile one ton of refrigeration system is designed, developed for testing minichannel condenser for different condenser temperature and pressure by providing artificial condenser compartment with three air heaters of 2.2 kW capacity each with a multispeed condenser fan for controlling air velocity. Thus, the condensation temperature is reduced by 2 to 3°C due to its special geometry, passes provided, efficient cooling and the coefficient of performance increased by 10 to 15% for condensation temperature varying from 40 to 55°C whereas evaporation temperature varies from -10 to +15°C. Computational Fluid Dynamics (CFD) simulation for different sections of the minichannel condenser such as a single minichannel, single tube with 10 minichannels, first, second, third, fourth passes with varying tubes and entire condenser with all four passes for different inlet and exit temperature are performed using ANSYS FLUENT-20 CFD turbulence models and validated with the experimental results. The pressure and temperature counters for all the sections are studied and plotted. It is found that the temperature difference between experimental and CFD results are within ±15% for all the simulations along the condenser.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"298 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":"135252001","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