SAE Technical Papers最新文献_第8页

Synchronizer Spring Failure Due to Gear Shift Loads - Investigation and Design Recommendations 变速负荷引起的同步器弹簧失效。调查和设计建议

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0051

GAJANAN JAMADADE, Barathi Raja K, Soumik Chatterjee

{"title":"Synchronizer Spring Failure Due to Gear Shift Loads - Investigation and Design Recommendations","authors":"GAJANAN JAMADADE, Barathi Raja K, Soumik Chatterjee","doi":"10.4271/2023-28-0051","DOIUrl":"https://doi.org/10.4271/2023-28-0051","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">In manual transmission, the vital function of synchronizer pack is to synchronize the speed of the target gear for smooth gear shifting. The synchronizer pack consists of various elements and each of these elements has specific function. These elements are baulk rings, shifter sleeve, hub, synchro key, synchro springs etc. The function of synchronizer can be affected due to failure of any one of these elements. This work focuses on the failure of synchronizer pack due to synchro spring failure.</div><div class=\"htmlview paragraph\">The function of synchronizer spring is to exert the required force, to index the synchronizer ring before the movement of shifter sleeve over synchronizer ring. During the shifting of shifter sleeve from one gear to another gear, the springs deflect in both shifting directions. This causes fatigue failure of synchronizer springs. The manufacturing variations, and part quality issues results in very early fatigue failure of synchronizer springs. The failure of synchronizer springs affects the smooth gear shifting or it does not allow the shifting at all. The vehicle becomes off road due to the spring failure. To evaluate the spring fatigue strength, a new accelerated test was developed to get the result in shorter time. Each failure mode is investigated and based on the findings design improvements were carried out. The improvements in the spring design and the corrective actions in interfacing components help to meet the fatigue life of the spring.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"13 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135092386","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 Cooling Efficiency in Inverter Assembly Using Numerical and Experimental Analysis 基于数值和实验分析的逆变器组件冷却效率优化

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0162

Anbarasu Govindarasu, Sukumar T, Gugainamasivayam Sathyamoorthy, Vivek Subramanian

{"title":"Optimization of Cooling Efficiency in Inverter Assembly Using Numerical and Experimental Analysis","authors":"Anbarasu Govindarasu, Sukumar T, Gugainamasivayam Sathyamoorthy, Vivek Subramanian","doi":"10.4271/2023-28-0162","DOIUrl":"https://doi.org/10.4271/2023-28-0162","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">In the coming years, moving towards a hundred percent electric vehicles will be one of the key areas in the automotive industry. The main advantages of using e-mobility are operational flexibility, lower carbon emission and regenerative energy. Thermal management in an e-vehicle plays a vital role for the reliability of the system and any thermal failure can cost a significant amount of money to a company per vehicle. Inverter assembly is widely used to convert Direct Current (DC) to Alternating Current (AC) in the e-mobility platform to operate the motor for vehicle propulsion. It consists of various electronic transmitters, controllers, capacitors, and semi-conductors which will emit an enormous amount of heat during their operation. Since inverters are highly temperature sensitive in nature, it is necessary to improve the temperature distribution in the device. For this reason, adequate cooling system and ventilation is inevitable to keep the components operational. In this study, the thermal characteristic of the inverter was determined using transient thermal analysis considering three different fin geometry used in the heat sink. The two major heat sources are capacitors and Insulated Gate Bipolar Transistor (IGBT), and the heat transfer in the inverter assembly is due to conduction, convection, and radiation. This paper deals with the optimization of inverter fin to meet the cooling efficiency. Also, experimental validation was performed to verify the simulation results and correlation study was carried out to find the results accuracy of the numerical method. Simulation methodology was standardized for the thermal management of an inverter which can be effectively used in the electric vehicle industry.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141147","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

Artificial Intelligence Model for Machinability Investigations on Drilling of AA6061 with Micro Textured Tool for Automobile Applications 汽车用微织构刀具钻削AA6061可加工性研究的人工智能模型

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0082

Lakshmi Narasimhamu Katta, Manikandan Natarajan, Thejasree Pasupuleti, Narapureddy Siva Rami Reddy, Potta Sivaiah

{"title":"Artificial Intelligence Model for Machinability Investigations on Drilling of AA6061 with Micro Textured Tool for Automobile Applications","authors":"Lakshmi Narasimhamu Katta, Manikandan Natarajan, Thejasree Pasupuleti, Narapureddy Siva Rami Reddy, Potta Sivaiah","doi":"10.4271/2023-28-0082","DOIUrl":"https://doi.org/10.4271/2023-28-0082","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">Considering the advancements in manufacturing industries, which are crucial for economic growth, there is a substantial demand for exploration and analysis of advanced materials, especially alloy materials, to enable efficient utilization of new technologies. Lightweight and high-strength materials, like aluminium alloys, are highly recommended for various applications that necessitate both strength and resistance to corrosion, such as automobile, marine and high-temperature applications. Therefore, there is a significant need to investigate and analyse these materials to facilitate their effective application in manufacturing sectors. This study investigates the machinability of drilling AA6061 using a micro-textured tool and proposes an Adaptive Neuro Fuzzy Inference System (ANFIS) model for investigating the machinability of drilling AA6061 aluminium alloy with a micro-textured uncoated tool. The ANFIS model considers various input parameters such as spindle speed, feed rate, and Coolant type to predict the machinability performance of the drilling process. The results indicate that the ANFIS model is an effective tool for predicting the machinability performance of AA6061 during the drilling process. The model can help optimize the drilling process by identifying the best combination of input parameters that yield the desired machinability performance. This study demonstrates the potential of ANFIS models in the field of machining, particularly in the development of predictive models for optimizing machining processes.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141150","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

Taguchi’s Approach to Wire Electrical Discharge Machining of Magnesium Alloy AZ31B 田口的AZ31B镁合金线切割加工方法

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0136

Manikandan Natarajan, Thejasree Pasupuleti, V Kumar, PC Krishnamachary, Jothi Kiruthika, Gowthami Kotapati

引用次数: 0

Numerical Investigation on the Design and Development of Automotive Exhaust Muffler –A Case Study 汽车排气消声器设计与开发的数值研究——以汽车排气消声器为例

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0085

Subramaniyan Baskar, Vivek Lingala, Kumar Raju

{"title":"Numerical Investigation on the Design and Development of Automotive Exhaust Muffler –A Case Study","authors":"Subramaniyan Baskar, Vivek Lingala, Kumar Raju","doi":"10.4271/2023-28-0085","DOIUrl":"https://doi.org/10.4271/2023-28-0085","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">Attaining better acoustic performance and back-pressure is a continuous research area in the design and development of passenger vehicle exhaust system. Design parameters such as tail pipe, resonator, internal pipes and baffles, muffler dimensions, number of flow reversals, perforated holes size and number etc. govern the muffler design. However, the analysis on the flow directivity from tail pipe is limited. A case study is demonstrated in this work on the development of automotive muffler with due consideration of back pressure and flow directivity from tail pipe. CFD methodology is engaged to evaluate the back pressure of different muffler configurations. The experimental and numerical results of backpressure have been validated. The numerical results are in close agreement with experimental results. It was observed that the influence on back pressure with reducing the quantity of baffle plate, Increasing the tail pipe diameter and twin tail pipe with bypassing flow through inner pipe are 2.7%, 1.4% and 34.4%, respectively. The impact of tail pipe angle on flow directivity is assessed based on the flow uniformity index. Effect of each operating parameter on the back pressure is evaluated with statistical approach.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141291","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

Integration of Bi-Level Model and Mixed Integer Linear Programming for Optimization of Electric Vehicle Charging Stations with Distributed Energy Sources 基于双级模型和混合整数线性规划的分布式能源电动汽车充电站优化

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0100

Evangelin Jeba J, Suchitra D

{"title":"Integration of Bi-Level Model and Mixed Integer Linear Programming for Optimization of Electric Vehicle Charging Stations with Distributed Energy Sources","authors":"Evangelin Jeba J, Suchitra D","doi":"10.4271/2023-28-0100","DOIUrl":"https://doi.org/10.4271/2023-28-0100","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">In this research paper, a novel bi-level approach has been introduced to enhance grid flexibility through a flexible power management system, taking into account the availability of renewable and adaptable resources. The proposed optimization strategy focuses on minimizing the total daily idle time of Electric Vehicles (EVs) by optimizing charging processes at both Fast Charging Station (FCSs) and user-level charging. The objectives of FCS energy management and EV idle time are considered as lower and upper-level models, respectively, which are optimized by the proposed bi-level strategy with Particle Swarm Optimization (PSO) algorithm. The investigation confirms the effectiveness and reliability of the recommended optimization strategy. Test results highlight its success in enhancing financial gains for charging stations and EV users, benefiting grid operators and consumers alike. The outcomes reveal a notable decrease in the FCS day-to-day charge rate, dropping from $3795.84 to $3523.84, marking a 6.34% reduction and providing an advantage to station owners.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141292","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

Study the Effect of Pneumatic Valve Characteristics due to Linear and Non-Linear Damping System 研究了线性和非线性阻尼系统对气动阀特性的影响

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0160

Sugumar Kandasamy, Sukumar T, Vamsi Krishna Pendyala, Anbarasu Govindarasu

{"title":"Study the Effect of Pneumatic Valve Characteristics due to Linear and Non-Linear Damping System","authors":"Sugumar Kandasamy, Sukumar T, Vamsi Krishna Pendyala, Anbarasu Govindarasu","doi":"10.4271/2023-28-0160","DOIUrl":"https://doi.org/10.4271/2023-28-0160","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">Pneumatic valves are widely used in heavy commercial vehicles’ air braking systems. These valves are mainly used in the braking system layout to maintain the vehicle stability during dynamic conditions. Rubber components are inevitable in valves as a sealing element, and it is very difficult to predict the behavior due to its nonlinear nature. Basically, this valve efficiency is defined in terms of performance and response characteristics. These characteristics are determined in the concept stage itself using 1D simulation software. AMESim software has a variety of elements to use in a unique way for performance and response behavior prediction. For pneumatic valves, 1D analysis is an effective method and it gives good correlation with actual test results. During the modelling of pneumatic valves, some of the contacts between rubber and metals are controlled by various parameters such as damping, contact stiffness and desired phase angle. Instead of giving these parameters to a linear contact element, rubber elements can be used to reduce the variations and increase the correlation with test results. Some of the challenges during modelling the rubber elements are, there is no incorporated rubber element with gap, end-stop controls, and it requires, load Vs deflection characteristics of the rubber (prediction of load and deflection). This paper deals with the modelling and parameterization of a typical pneumatic valve with linear and Non-linear contact elements. Outcome from the 1D simulation results have been validated with the experimental test results.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141294","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

“Performance Emission Parameters Behavior of a DI Diesel Engine Using Al <sub>2</sub> O <sub>3</sub> and TiO <sub>2</sub> Nano Additive Biodiesel Blends” “使用Al <sub>2</sub&gt的直驱柴油机性能排放参数行为”;O & lt; sub> 3 & lt; / sub>2</sub>纳米添加剂生物柴油混合物”

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0127

Praveen Anchupogu, R L Krupakaran, Jamuna Rani Ganipineni, Ratna Kamala Petla

{"title":"“Performance Emission Parameters Behavior of a DI Diesel Engine Using Al <sub>2</sub> O <sub>3</sub> and TiO <sub>2</sub> Nano Additive Biodiesel Blends”","authors":"Praveen Anchupogu, R L Krupakaran, Jamuna Rani Ganipineni, Ratna Kamala Petla","doi":"10.4271/2023-28-0127","DOIUrl":"https://doi.org/10.4271/2023-28-0127","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">This study mainly focuses on the blending of Alumina and Titanium oxide nanoparticles (NP’s) in Spirulina biodiesel blends (SB20) to estimate the influence of engine (combustion, performance and emission) parameters of a diesel engine. The characterization of Al<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub> NP’s like SEM were reported. By using various fuel samples such as Diesel, SB20, SB20+40 ppm AO, SB20+80 ppm AO, SB20+40 ppm TO and SB20+80 ppm TO, the engine tests on the diesel engine were conducted at various load conditions. The BTE for SB20+80 ppm AO were enhanced by 12.35% and 8.4 % compared to the SB20 fuel and SB20+40 ppm AO fuel samples. The combustion parameters were improved for the NP’s as additives (Al<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub>) fuels than the SB20 fuel sample because NP’s contain oxygen content. The parameters of engine exhaust emissions such as HC, CO and smoke are drastically diminished for the SB20+40 ppm AO, SB20+80 ppm AO, SB20+40 ppm TO and SB20+80 ppm TO fuels compared to the SB20 fuel. A marginal improvement was observed for the NP’s blended fuel samples in case of NOx emissions than the B20 fuel.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141634","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

Multiple Regression Analysis for Ti-6Al-4V Wire Electrical Discharge Machining (Grade 5) for Light Weight Automobile Applications 轻型汽车用Ti-6Al-4V线材放电加工(5级)的多元回归分析

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0163

Manikandan Natarajan, Thejasree Pasupuleti, Palanisamy D, D Umapathi, Jothi Kiruthika, Gowthami Kotapati

{"title":"Multiple Regression Analysis for Ti-6Al-4V Wire Electrical Discharge Machining (Grade 5) for Light Weight Automobile Applications","authors":"Manikandan Natarajan, Thejasree Pasupuleti, Palanisamy D, D Umapathi, Jothi Kiruthika, Gowthami Kotapati","doi":"10.4271/2023-28-0163","DOIUrl":"https://doi.org/10.4271/2023-28-0163","url":null,"abstract":"Wire Electrical Discharge Machining (WEDM) is a variant of the electrical discharge machining (EDM) process, which represents an innovative method for the removal of material from a workpiece. The aforementioned process is frequently employed for the machining of harder materials that possess intricate geometries. Titanium alloys are a class of lightweight materials that find extensive utilization in many technical applications. Titanium Grade-5 is a titanium-based alloy that exhibits enhanced mechanical strength and improved resistance to corrosion. The objective of this exploratory analysis is to establish empirical correlations between the selected input variables, namely ‘Pulse on,’ ‘Pulse off,’ and peak current, and the desired output measures, which are material removal rate and surface roughness. The experimental design employed the Taguchi method to effectively organize the combination of tests by considering input factors. Multiple regression analysis has been developed to establish the relationship between selected input and output variables. Contour and interaction analysis were done to divulge the interaction effect of independent factors on individual output metrics. The results of the multiple regression analyses were then analyzed to ascertain the link amongst the various input factors and the outputs.","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142170","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 Soft Reinforcement Particles on Microstructural, Mechanical, and Tribological Properties of Sintered Copper-Based Brake Composite Friction Material 软增强颗粒对烧结铜基制动复合摩擦材料组织、力学和摩擦学性能的影响

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0132

Raja P, Penchaliah Ramkumar

{"title":"Effect of Soft Reinforcement Particles on Microstructural, Mechanical, and Tribological Properties of Sintered Copper-Based Brake Composite Friction Material","authors":"Raja P, Penchaliah Ramkumar","doi":"10.4271/2023-28-0132","DOIUrl":"https://doi.org/10.4271/2023-28-0132","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">The main objective of the work is to investigate the friction and wear behavior of sintered copper-based brake composite friction material with a change in the volume percentage of soft reinforcement particles namely MoS<sub>2</sub> by pin-on-disc tribometer for medium-duty automotive applications. The composite brake friction material contains copper (Cu) as a matrix, tin (Sn) as an additive, silicon carbide (SiC) and molybdenum disulfide (MoS<sub>2</sub>) as hard and soft reinforcement particles and barium sulfate (BaSO<sub>4</sub>) as filler. These hybrids copper-based brake composite friction (pin) samples are successfully prepared by a change in compositions of MoS<sub>2</sub> from 0 to 5 vol. % in the step of 1 vol. % and the characterizations of friction samples are studied to understand the physical and mechanical properties such as density, hardness, and compressive strength. Finally, the dry sliding friction and wear test is conducted against grey cast iron material (disc) at constant load and sliding speed of 50 N and 5 m/s respectively using pin-on-disc equipment under room atmosphere. Based on the analysis of the result, the developed copper-based brake composite friction sample with 2 vol. % of MoS<sub>2</sub> has shown better mechanical and tribological properties among other compositions. Further, post-test analysis on the worn-out sample surfaces using a field emission scanning electron microscope (FESEM) with energy dispersive spectroscopy (EDS) revealed that change in wear mechanisms from abrasion to adhesion as an increase in the volume percentage of MoS<sub>2</sub>.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141160","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