SAE Technical Papers最新文献_第10页

Optimization of Spark Erosion Machining of Monel 400 Alloy for Automobile Applications 汽车用蒙乃尔400合金火花腐蚀加工优化

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0140

Manikandan Natarajan, Thejasree Pasupuleti, Jothi Kiruthika, V Kumar, Palanisamy D, Vamsinath Polanki

{"title":"Optimization of Spark Erosion Machining of Monel 400 Alloy for Automobile Applications","authors":"Manikandan Natarajan, Thejasree Pasupuleti, Jothi Kiruthika, V Kumar, Palanisamy D, Vamsinath Polanki","doi":"10.4271/2023-28-0140","DOIUrl":"https://doi.org/10.4271/2023-28-0140","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">Monel 400, a type of nickel alloy which is adopted in numerous engineering fields, such as high-temperature devices. Owing to its better strength and thermal diffusion, it can be difficult to machine with conventional methods. In order to avoid the disadvantages of conventional methods, various advanced material removal techniques have been developed. One of these is Wire Electro Discharge Machining (WEDM). This process is an evolution of the electrical discharge method. In the process of WEDM, difficult materials with intricate forms are usually machined. In this study, the performance of this method on Monel 400 has been analyzed. The three independent variables that are considered when it comes to analyzing the performance of this process are the pulse on, the applied current, and the pulse off. The experiments were performed using the design approach of Taguchi, which involves using an L27 orthogonal array. The single response analysis performed by Taguchi revealed that the process parameters can influence the output variables that are desired by the users. Through the use of the Taguchi-grey relational analysis method, the multiple aspects optimization of the process was performed. The results of the exploration divulged that the proposed method can improve the effectiveness of this process.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 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":"135142160","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

Application of Taguchi Approach on Wire Electrical Discharge Machining of SS304 for Automotive Applications 田口法在汽车用SS304线切割加工中的应用

SAE Technical Papers Pub Date : 2023-11-10 DOI: 10.4271/2023-28-0151

Manikandan Natarajan, Thejasree Pasupuleti, Lakshmi Narasimhamu Katta, Lakshmi Narayana Somsole, Palanisamy D, Jothi Kiruthika

{"title":"Application of Taguchi Approach on Wire Electrical Discharge Machining of SS304 for Automotive Applications","authors":"Manikandan Natarajan, Thejasree Pasupuleti, Lakshmi Narasimhamu Katta, Lakshmi Narayana Somsole, Palanisamy D, Jothi Kiruthika","doi":"10.4271/2023-28-0151","DOIUrl":"https://doi.org/10.4271/2023-28-0151","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">SS304 is a type of stainless steel that is well-known for its high ductility and resistance to corrosion; as a result, it is typically utilized in a variety of applications, such as the exhaust systems of automobiles and the springs that are used in seatbelts. Because of its qualities, it will eventually be employed in a variety of body parts, including fuel tanks and chassis, among other things. Due to its properties, SS304 is known to be incredibly difficult to machine using conventional methods. Through a wire electrical discharge machining process, it is easier to cut complex materials with high surface finishes. In this study, a study was conducted on the WEDM process parameters of SS304 to optimize its machining process. The study was carried out using the DoE approach, which involved planning the various experiments. The parameters of the process, such as the pulse on time, peak current, and off time, were analyzed to determine their performance. The various performance measures included surface roughness, overcut, and removal rate. The results of the study were then analyzed with an interaction plot analysis. The influence of the various process variables on the output measures were then studied through this analysis.</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":"135142188","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

Redundant Sensor-Based Perception Sensor Reliability Estimation from Field Tests without Reference Truth 基于冗余传感器的无参考真值现场测试感知传感器可靠性估计

SAE Technical Papers Pub Date : 2023-11-08 DOI: 10.4271/2023-01-5078

Marco Kryda, Minhao Qiu, Mario Berk, Boris Buschardt, Daniel Straub

{"title":"Redundant Sensor-Based Perception Sensor Reliability Estimation from Field Tests without Reference Truth","authors":"Marco Kryda, Minhao Qiu, Mario Berk, Boris Buschardt, Daniel Straub","doi":"10.4271/2023-01-5078","DOIUrl":"https://doi.org/10.4271/2023-01-5078","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">The introduction of autonomous vehicles has gained significant attention due to its potential to revolutionize mobility and safety. A critical aspect underpinning the functionality of these autonomous vehicles is their sensor perception system. Demonstrating the reliability of the environment perception sensors and sensor fusion algorithms is, therefore, a necessary step in the development of automated vehicles. Field tests offer testing conditions that come closest to the environment of an automated vehicle in the future. However, a significant challenge in field tests is to obtain a reference truth of the surrounding environment. Here, we propose a pipeline to assess the sensor reliabilities without the need for a reference truth. The pipeline uses a model to estimate the reliability of redundant sensors. To do this, it relies on a binary representation of the surrounding area, which indicates either the presence or absence of an object. Therefore, the pipeline includes another step to convert object lists into this binary representation. Using the pipeline, we estimate the sensor reliabilities from object data derived from the Waymo dataset. Even though we are capable of obtaining close estimates of the sensor reliabilities we find out that the estimation of the sensor reliabilities is not robust for different parameter sets.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"41 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135430792","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

Numerical Iterative Analysis of Drag Reduction System for a Racing Car Rear Wing 某赛车尾翼减阻系统的数值迭代分析

SAE Technical Papers Pub Date : 2023-11-08 DOI: 10.4271/2023-01-5079

Carlos Monteiro, Moisés Brito, Diana Filipa da Conceição Vieira

{"title":"Numerical Iterative Analysis of Drag Reduction System for a Racing Car Rear Wing","authors":"Carlos Monteiro, Moisés Brito, Diana Filipa da Conceição Vieira","doi":"10.4271/2023-01-5079","DOIUrl":"https://doi.org/10.4271/2023-01-5079","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">In Formula Student competitions, the active adaptation of the aerodynamic components to the current race track conditions can significantly enhance the overall dynamic performance of the car. Due to the abundant low-speed corners, angles of attack of fixed aerodynamic components are usually exaggerated, preventing the car from achieving higher acceleration capabilities due to induced drag. This issue can be tackled by introducing an active drag reduction system (DRS). In this work, a strategy for performing iterative numerical simulations is proposed, with the goal of obtaining a range of different configurations suitable for certain track conditions. Specifically, the case of lowest drag is exploited.</div><div class=\"htmlview paragraph\">Different macros were developed to couple the utilization of computational fluid dynamics tools for aerodynamic analysis with an extensive iterative process with minimal user interference. An initial mesh refinement study was conducted. Afterward, angles of attack and centers of rotation of the two most rear flaps are iterated. The lowest-drag configuration was found to be at <i>α</i><sub><i>flap</i><sub>1</sub></sub> = 0° and <i>α</i><sub><i>flap</i><sub>2</sub></sub> = −6 ° , the latter mostly due to its aerodynamic interaction with the rest of the system. Results show that the angle of attack of flap 2 had the most influence on the overall forces, while varying the centers of rotation had a weaker impact. Nevertheless, combining the investigation of the angles of the attack with the center of rotation yields optimal DRS configuration with the minimum drag. Within one loop of the proposed strategy, a reduction of up to 94<i>.</i>5% in rear-wing drag was found. The strategy proposed can be looped until a configuration is obtained for specific optimization targets, such as drag reduction.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"41 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135430791","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 Deadweight on Frame and Correlation with Human Passenger in a Two Wheeler 两轮车自重对车架的影响及与乘员的关系

SAE Technical Papers Pub Date : 2023-11-08 DOI: 10.4271/2023-01-5080

Rajesh Kumar, Mohit Kumar, Md Irfan, Pardiwan Kumar

{"title":"Effect of Deadweight on Frame and Correlation with Human Passenger in a Two Wheeler","authors":"Rajesh Kumar, Mohit Kumar, Md Irfan, Pardiwan Kumar","doi":"10.4271/2023-01-5080","DOIUrl":"https://doi.org/10.4271/2023-01-5080","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">Deadweight as payload is an important parameter, which affects the vehicle dynamics and durability of the vehicle. This paper presents a study performed to evaluate the effect of deadweight on dynamic input load, suspension operation, and fatigue life of frame in a two wheeler. Also, an optimization exercise was undertaken to correlate and optimize deadweight with a human payload in terms of equivalent damage to the frame. Strain, wheel acceleration, and suspension displacement data were acquired with pillion and multiple deadweights and compared. Relative damage spectrum (RDS) characterization and best-fit optimization methods were used for deadweight correlation. It was observed that with deadweight addition dynamic loads decreases on the front wheel while increases on the rear. Strain damage wise increasing deadweights have marginal effects on the front zone of the frame while on the middle and rear side, deadweights are detrimental. Human payload behaves like deadweight for dynamic loading as observed with higher acceleration and suspension stroke level given its magnitude, but in terms of strain damage it has very low damaging effect as compared to deadweights. Deadweight optimization exercise suggested an optimum weight to have an equivalent damage for the same durability cycle as human pillion. The study aimed to help in understanding the design load considerations taking deadweight into account as well as in the development of proving ground test cycle with deadweight as a human substitute. The latter could be applied in case of manpower planning or pandemic scenario such as COVID-19.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":" 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135340758","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 Moisture Adsorption on Low-Speed and Moderate-Speed Braking: Effect on In-Stop Friction Coefficient and Low Frequency Noise 湿吸附对低速和中速制动的影响:对制动时摩擦系数和低频噪声的影响

SAE Technical Papers Pub Date : 2023-11-05 DOI: 10.4271/2023-01-1862

Meechai Sriwiboon, Saiprasit Koetniyom, Seong Kwan Rhee, Jittrathep Sukultanasorn, Kritsana Kaewlob, Jitpanu Kunthong

{"title":"Effect of Moisture Adsorption on Low-Speed and Moderate-Speed Braking: Effect on In-Stop Friction Coefficient and Low Frequency Noise","authors":"Meechai Sriwiboon, Saiprasit Koetniyom, Seong Kwan Rhee, Jittrathep Sukultanasorn, Kritsana Kaewlob, Jitpanu Kunthong","doi":"10.4271/2023-01-1862","DOIUrl":"https://doi.org/10.4271/2023-01-1862","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">Copper-free NAO disc pads of passenger cars were investigated for a combination of prior braking conditions and moisture adsorption influencing in-stop friction and noise during low-speed stops, and in-stop-friction during moderate-speed stops. Prior braking conditions and moisture adsorption strongly influence subsequent in-stop friction behavior and noise at room temperature. The low-speed in-stop friction behavior looks totally different from that of moderate-speed stops. The low-speed in-stop friction increasingly oscillates with increasing moisture adsorption and goes down towards the end of a stop, which is accompanied by increasing low-frequency noise.</div><div class=\"htmlview paragraph\">The moisture content needs to be quantified/specified to obtain repeatable/reproducible brake test results as the moisture is an unintended and uncontrolled ingredient of a friction material. As the disc surface roughness increases due to prior braking conditions, the friction coefficient of low-speed stops is found to decrease. The changing friction coefficient is explained by the nature of the friction film and its interactions with moisture.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"120 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724669","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

Developing EPB Analytic Model Based on Multi-Flexible Body Dynamics 基于多柔体动力学的EPB分析模型的建立

SAE Technical Papers Pub Date : 2023-11-05 DOI: 10.4271/2023-01-1885

Yongsik Kwon, Chang Hun Park, Joon Hee Yun, Park Jing Moon

{"title":"Developing EPB Analytic Model Based on Multi-Flexible Body Dynamics","authors":"Yongsik Kwon, Chang Hun Park, Joon Hee Yun, Park Jing Moon","doi":"10.4271/2023-01-1885","DOIUrl":"https://doi.org/10.4271/2023-01-1885","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">The current braking system of a vehicle includes a parking braking system, which consists of a Motor on Caliper (MOC) that generates hydraulic main braking and electric parking braking through a caliper structure. When designing the MOC braking system, it is important to consider an analytical model that can predict the performance of the parking clamping force and the torque generated between the disk and caliper interactions. However, in previous designs, system predictions were often based on simplified structural calculations or incomplete Finite Element Method (FEM) analysis.</div><div class=\"htmlview paragraph\">In this paper, a study was conducted to predict the system performance using Multi-flexible Body Dynamics (MFBD) analysis. Firstly, a kinematic model (MBD) was developed for the Electric Parking Brake (EPB) system currently used in mass-produced vehicles. And the MBD model which based on kinematics was the initial model for this study. Secondly, Multi flexible body dynamics model was built based on aforementioned MBD model. This model considered internal contact, deformation conditions especially caliper body as a flexible body and force. The RECURDYN program was used to construct the model, and dynamic and FEM analyses were applied to the system.</div><div class=\"htmlview paragraph\">By using this analysis model, existing products was manufactured, and extensive performance evaluations were conducted to assess the consistency of the analysis model developed through the program. The results obtained from this study can help predict the performance of the initial MOC system design and identify areas that require improvement.</div><div class=\"htmlview paragraph\">Additionally, when considering optimization for a specific system, this model can be used to determine key design dimensions and establish a basis for design in conjunction with the experimental planning method.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"120 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724671","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

A Renewed Look at Centralized vs. Decentralized Actuation for Braking Systems 重新审视制动系统的集中与分散驱动

SAE Technical Papers Pub Date : 2023-11-05 DOI: 10.4271/2023-01-1865

David Antanaitis

{"title":"A Renewed Look at Centralized vs. Decentralized Actuation for Braking Systems","authors":"David Antanaitis","doi":"10.4271/2023-01-1865","DOIUrl":"https://doi.org/10.4271/2023-01-1865","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">De-centralized brake actuation – that is, brake systems that incorporate individual actuators at each wheel brake location to both provide the apply energy and the modulation of braking force – is not a new area of study. Typically realized in the form of electro-mechanical brake calipers or drum brakes, or as “single corner” hydraulic actuators, de-centralized actuation in braking systems has already been deployed in production on General Motor EV1 Electric Vehicle (1997) in the form of electric drum brakes and has been studied continually by the automotive industry since then. It is frequently confused with “brake by wire,” and indeed practical implementations of de-centralized actuation are a form of brake by wire technology. However, with millions of vehicles on the road already with “brake by wire” systems - the vast majority of which have centralized brake actuation – the future of “brake by wire” is arguable settled. The question of what is next for braking technology is centered more on study of de-centralized actuation. There is little debate, especially with modern electronics and computing power, on whether de-centralized brake actuation technology can work – the technical feasibility has been largely proven. The frontier of study of this technology is instead “does it make sense,” in other words do the benefits outweigh the initial investments and the risks for high volume production. This question cannot be answered from purely within the confines of the braking system itself, as it has far ranged implications on everything from manufacturing to interior layout, to energy efficiency, and it affects other major systems such as propulsion and electrical. The present work takes a holistic look at the implications, both positive and negative, for brake systems with de-centralized actuation, and make a case for why the time may finally be here for broader implementation.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724800","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

IMU Based Velocity Estimation Impact on Stopping Distance for Heavy-Duty Class 8 Truck Air Brake Systems with ABS 基于IMU的速度估计对带ABS的重型8级卡车空气制动系统制动距离的影响

SAE Technical Papers Pub Date : 2023-11-05 DOI: 10.4271/2023-01-1873

Tamas Erdos

{"title":"IMU Based Velocity Estimation Impact on Stopping Distance for Heavy-Duty Class 8 Truck Air Brake Systems with ABS","authors":"Tamas Erdos","doi":"10.4271/2023-01-1873","DOIUrl":"https://doi.org/10.4271/2023-01-1873","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">An accurate estimate of vehicle speed is essential for optimal anti-lock braking system (ABS) calculations. Currently, most vehicles including heavy-duty class 8 trucks mainly rely on wheel speed sensors (WSS) to estimate velocity. However, as soon as braking is applied, WSS become inaccurate for determining the velocity due to the longitudinal slip developed in the tires. Using the inertial measurement unit (IMU) to estimate vehicle speed allows for its use in conjunction with the WSS to accurately calculate the slip ratio at each tire. These slip ratio values can then be used as the main control variable in the ABS algorithm to utilize the grip available more fully at each tire, to improve stopping distance and controllability. A steady state braking analysis model is developed and validated against Federal Motor Vehicle Safety Standards (FMVSS) 121 60-0 mph stopping distance data for a loaded class 8 tractor semi-trailer combination. Once the model is validated to show good correlation to measured deceleration data, it is used to estimate the theoretical peak steady state deceleration with the ideal slip ratio at each tire. Then a semi-empirical approach is used to consider current air brake system and ABS algorithm capabilities in the analysis. Lastly, the initial transient phase of 60-0 mph stop is accounted for to get a realistic stopping distance improvement estimate for a loaded heavy-duty truck.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"121 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724801","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

Transfer Learning-Based Neural Network for Natural Frequency Prediction of Linear Dynamic Systems 基于迁移学习的线性动态系统固有频率预测神经网络

SAE Technical Papers Pub Date : 2023-11-05 DOI: 10.4271/2023-01-1883

Sreejesh Mammily

{"title":"Transfer Learning-Based Neural Network for Natural Frequency Prediction of Linear Dynamic Systems","authors":"Sreejesh Mammily","doi":"10.4271/2023-01-1883","DOIUrl":"https://doi.org/10.4271/2023-01-1883","url":null,"abstract":"<div class=\"section abstract\"><div class=\"htmlview paragraph\">The prediction of natural frequencies is a crucial aspect of engineering design and analysis. Traditional methods involve finite element analysis (FEA) which is a standard method for calculating natural frequencies of dynamic systems. For each design variant, FEA calculation can be time-consuming and computationally expensive. In this study, we propose a novel method for predicting the natural frequencies of design variants using transfer learning and artificial neural networks (ANN).</div><div class=\"htmlview paragraph\">The proposed method involves the use of FEA to generate the stiffness and mass matrices of the brake disc, which are then used as inputs to the neural network. However, the prediction can become tedious when there is a change in the design. To address this, we employ transfer learning followed by linear regression using a design variant of the previous structure as test data. The neural network learns through transfer learning and fine-tunes its outputs using regression for final frequency prediction.</div><div class=\"htmlview paragraph\">The proposed approach can predict the natural frequencies of new structures efficiently without compromising the quality of the outcome, even when the degree of freedom changes due to design alterations. The effectiveness of this method is demonstrated by calculating frequencies of brake disc with different material property, and the results are compared with FEA to measure its accuracy. The results indicate that this method can accurately predict the natural frequencies of new design variants with high prediction accuracy and computational efficiency. This method has potential applications in engineering design and analysis, especially for structures that require iterations to finalize design and where there is a need to calculate the dynamic characteristics of the system.</div></div>","PeriodicalId":38377,"journal":{"name":"SAE Technical Papers","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724939","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