Faculty Publications
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Item Effect of porosity and gradation of Galfenol-D on vibration suppression of bidirectional functionally graded beam(Elsevier Ltd, 2022) Patil, M.A.; Kadoli, R.A differential quadrature technique is used to investigate the vibration control response of bidirectional functionally graded imperfect aluminium-Terfenol-D and aluminium-Galfenol-D. In both transverse and axial orientations, the Terfenol-D and Galfenol-D materials are functionally graded. The bidirectional FG imperfect aluminium-Terfenol-D and aluminium-Galfenol-D governing equation is based on generalised beam theory. With consideration of uniform and uneven porosity distribution, the influence of porosity and an externally applied magnetic field on free vibration suppression behaviour is recorded. In terms of damping performance, Galfenol-D exceeds Terfenol-D. The effect of Lorentz force on the fundamental frequencies is discussed. It's worth noting that the overdamping response of the aluminium-Galfenol-D beam takes less than 0.1 s, but the exponential decay of the aluminium-Terfenol-D beam takes just 0.9 s. © 2022Item Smart Attendance Management System using IoT(Institute of Electrical and Electronics Engineers Inc., 2022) Patil, M.A.; Parane, K.; Sivaprasad, D.D.; Poojara, S.; Lamani, M.R.Taking student attendance is mandatory in an educational organization, and maintaining those attendance plays a vital role. The conventional way of taking student attendance in any institution is time-consuming and challenging, because in the conventional procedure taking attendance/Roll call is performed manually by calling student names as per their roll numbers and marking 'absent(A)' or 'present(P)' on the attendance/logbook accordingly in every class per day. To improve teaching efficiency/teaching time in classrooms by reducing the time required for Roll call's, we have proposed a biometric student attendance system based on IoT. The proposed system records students' attendance using the facial-based biometric system and stores the attendance details on the server through the internet. In this system, the Raspberry pi camera captures the student face images and compares them with the stored images in the database. If the captured image is comparable with the stored image, then the student's attendance is recorded on the remote server as a present(P) in class; otherwise, attendance is recorded as absent (A). The developed system has been tested for sample classes, and the results proved that the system is simple, cost-effective, and portable for managing students' attendance. © 2022 IEEE.Item Terfenol-D Composite Actuator For Vibration Suppression Applications: A Review(Springer Science and Business Media Deutschland GmbH, 2023) Patil, M.A.; Kadoli, R.Terfenol-D can be employed as a sensor and/or actuator in applications such as vibration control, noise reduction, health monitoring and energy harvesting. Several scholars have paid significant attention in the previous research to theoretical modelling and formulation for free and force vibration of laminated composite beams/plates. The free vibration control of beams and plates that have been combined with a Terfenol-D layer is the only topic of this review paper. This article discusses the potential scope for future study on laminated composite beams and plates combined with Terfenol-D layer. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.Item Hybrid Deep Learning-Based Potato and Tomato Leaf Disease Classification(Springer Science and Business Media Deutschland GmbH, 2024) Patil, M.A.; Manur, M.; Laxuman, C.; Parane, K.; Dodamani, B.M.; Sunkad, G.Predicting potato and tomato leaf disease is vital to global food security and economic stability. Potatoes and tomatoes are among the most important staple crops, providing essential nutrition to millions worldwide. However, many tomato and potato leaf diseases can seriously reduce food productivity and yields. We are proposing a hybrid deep learning model that combines optimized CNN (OCNN) and optimized LSTM (OLSTM). The weight values of LSTM and CNN models are optimized using the modified raindrop optimization (MRDO) algorithm and the modified shark smell optimization (MSSO) algorithm, respectively. The OCNN model is used to extract potato leaf image features and then fed into the OLSTM model, which handles data sequences and captures temporal dependencies from the extracted features. Precision, recall, F1-score, and accuracy metrics are used to analyze the output of the proposed OCNN-OLSTM model. The experimental performance is compared without optimizing the CNN-LSTM model, individual CNN and LSTM models, and existing MobileNet and ResNet50 models. The presented model results are compared with existing available work. We have received an accuracy of 99.25% potato and 99.31% for tomato. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.Item Engineers guide to Terfenol-D actuators: Design, performance, and real-world applications(Elsevier B.V., 2024) Patil, M.A.; Kadoli, R.Terfenol-D, a rare earth substance renowned for its remarkable magnetostrictive capabilities, is used in the field of actuators and sensors. The objective of this study is to demonstrate the most recent developments in Terfenol-D actuator technology and its use in many fields such as motors, fuel injectors, inkjet printing heads, servovalves, pumps, and active vibration controllers. The emphasis will be on showcasing the latest accomplishments in this domain. This study offers comprehensive insights into the design, operational features, and performance metrics of several Terfenol-D actuators, accompanied by pertinent schematic illustrations and quantitative measurements. This paper provides an overview of the fundamental structures, consistency of the magnetic field along the Terfenol-D rod, displacement amplification process, and several applications. The focus of the argument has been on the ongoing scientific studies about the actuation capabilities of Terfenol-D actuators. This review paper aims to appeal to the interests and passion of academics, researchers, and engineers involved in the manufacturing, design, analysis, and control of Terfenol-D actuators. © 2024Item State-of-the-Art in Different Formulations of Super Convergent Mesh-Less Differential Quadrature Method(Springer Science and Business Media B.V., 2025) Patil, M.A.; Kadoli, R.The primary objective of this study is to provide a literature review on the use of various kinds of differential quadrature techniques in the area of structural dynamics.The studies mostly focus on analyzing the buckling, free, and forced vibrations of isotropic and anisotropic beams and plates. The research study does not claim to be comprehensive; hence, certain choices must be made. The papers discussed in this article pertain to various formulations of differential quadrature methods, including the generalized method, inverse differential quadrature, differential quadrature element method, variational differential quadrature method, cubic-spline-based differential quadrature method, and radial basis function-based differential quadrature method. We assess the significant publications and challenges that have used these techniques. © The Author(s) under exclusive licence to International Center for Numerical Methods in Engineering (CIMNE) 2025.Item Differential quadrature solution for vibration control of functionally graded beams with Terfenol-D layer(Elsevier Inc. usjcs@elsevier.com, 2020) Patil, M.A.; Kadoli, R.The governing differential equation of motion for vibration control of a functionally graded material (FGM) beam using magnetostrictive layers is solved using differential quadrature method(DQM). It is known that, when differential quadrature is implemented directly for the solution of governing differential equation for vibration control of beam, it is required to convert the generalised eigenvalue problem into standard eigenvalue problem. However in the present work, the original differential equation of vibration control of beam is be separated into two simpler second and fourth order differential equations using the separation of variables in conjunction with the characteristics equation of damped single degree of freedom system. Solution of corresponding two simpler differential equation also yields damped natural frequency and damped factor comparable to that of the former approach. It is to be noted that using either of the solutions using differential quadrature method ? point description of the physical domain at boundary is used to obtained the differential quadrature equations for the various boundary conditions of the beam. In order to assure the accuracy of formulation and solution using DQM, convergence behavior of natural frequencies is examined for five combinations of boundary conditions and comparison studies from the two solution approaches is presented. The effect of the location of the magnetostrictive layers, material properties and control parameters on the vibration suppression are investigated. © 2020 Elsevier Inc.Item Influence of Winkler and viscoelastic foundation on free vibration of functionally graded beam integrated with Terfenol-D layer(Springer Science and Business Media Deutschland GmbH info@springer-sbm.com, 2020) Patil, M.A.; Kadoli, R.Free vibration of functionally graded beam integrated with Terfenol-D layer on Winkler-two parameter and viscoelastic foundation are studied by means of differential quadrature method within the framework of classical beam theory. The material properties of functionally graded beam integrated Terfenol-D layer are estimated by using the rule of mixture. The applied kinematic boundary conditions are implemented using ?-point and modified weighting coefficient approach. The solution of simply supported functionally graded material beam with Terfenol-D layer (FGMT) resting on the Winkler elastic foundation is obtained by using the technique of Navier. The numerical results obtained using differential quadrature method (DQM) and modified differential quadrature method (MDQM) are compared with exact results obtained from analytical formulation where excellent agreement is observed. The parametric study is carried out to encapsulate the influence of Winkler-two parameter and the viscoelastic foundation on the vibration characteristics of functionally graded beams integrated with Terfenol-D layer. © 2020, The Brazilian Society of Mechanical Sciences and Engineering.Item Internet-of-things and mobile application based hybrid model for controlling energy system(Springer Science and Business Media B.V., 2021) Patil, M.A.; Parane, K.; Poojara, S.; Patil, A.The Internet-of-Things (IoT) aims to combines physical objects in the world under a common infrastructure, it gives not only control of things, but also notify the state of the things. The automation for power saving based on the IoT has great business potential. The serious concern about the wastage of energy and this paper proposes an innovative hybrid method for automation system to reduce the wastage of power. The proposed hybrid method allows users to control and operate the electrical appliances manually or automatically. In automatic mode appliances are controlled through passive infrared (PIR) sensors and in manual mode appliances are controlled using android application. The developed system is deployed and tested in Laboratory, where it is used to control the electrical appliances such as, fans and tube lights. The usage of electricity is monitored and it is observed that the system reduced electrical bill of the laboratory by 24%. Finally, we have made a comparative analysis against existing system and it shows that the proposed hybrid system is better as compared to the existing systems. © 2021, Bharati Vidyapeeth's Institute of Computer Applications and Management.Item Effect of two-parameter partial foundation and viscoelastic supports on free vibration of Terfenol-D layered functionally graded fluid conveying pipe using domain decomposition technique(Taylor and Francis Ltd., 2023) Patil, M.A.; Kadoli, R.The purpose of the current research work is to investigate the free vibration control characteristics of a Terfenol-D layered functionally graded fluid-conveying pipe when subjected to partial two-parameter foundation, viscoelastic supports, and multi-span length. The integration of differential quadrature method with domain decomposition and the δ point approach, as well as Terfenol-D layer actuation with viscoelastic supports, distinguishes the current study effort. The equivalent spring stiffness for the two-parameter partial foundation is determined methodically for various elastic soil materials. The effect of varied spans with viscoelastic supports on the stability of fluid conveying pipes is also explored. © 2022 Taylor & Francis Group, LLC.