Shoaib, Muhammad Rafia, Tabassum Raja, Muhammad Asif Zahoor Khan, Waqar Azeem Waqas, Muhammad
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
The present article exploits a novel application of AI-based Levenberg–Marquardt scheme with backpropagated neural network (LMS–BPNN) to analyze the double-diffusive free convection nanofluid flow model (DDFC-NFM) over an inclined plate in the existence of Brownian motion and thermophoresis properties embedded in a porous medium. The governing PDEs...
Shang, Hao Chen, Yuan Li, Xiaolu Li, Yuntang Wang, Bingqing Peng, Xudong
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
Due to the great vibration of the rotating shaft, the dry gas seal has a transient change in film thickness during operation, which seriously affects the performance and lifetime of the dry gas seal. The current research on dry gas seals has begun to focus on their dynamic behavior. However, detailed analysis of the transient performance of dry gas...
Ramos, E. A. Treviño, C. Méndez, F. Lizardi, J. J.
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
In this work, we predict for a laminar electroosmotic flow in a thin microchannel, the impact that has some non-isothermal electrokinetics effects when the Debye length and the fluid viscosity are both temperature-dependent functions. The motion of the electroosmotic flow is caused with the aid of an external and uniform electric field. The presenc...
Francisco, A. S. Ouverney, T. M. W. Moreira, L. P.
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
The structural integrity of steam generator tubes containing crack-like flaws can be assessed based on crack acceptance criteria. Plastic collapse is the dominant failure mode of steam generator tubes since a very high fracture toughness is usually found in the tube materials. Thus, the plastic limit load analysis is the main crack acceptance crite...
Flores-Aquino, Gabriel O. Vasquez-Gomez, J. Irving Gutierrez-Frias, Octavio
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
Sampling-based motion planning algorithms are widely used in robotics because they are very effective in high-dimensional spaces. However, the success rate and quality of the solutions are determined by an adequate selection of their parameters such as the distance between states, the local planner, and the sampling distribution. For robots with la...
Diwania, Sourav Kumar, Rajeev Singh, Sudhir Kumar Dua, Gagandeep Singh Khetrapal, Pavan
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
A high photovoltaic (PV) panel temperature causes a reduction in the terminal voltage that results in low output power. Therefore, the extraction of heat from PV panels is a very important and crucial area to enhance the electrical power output. A PVT (Photovoltaic-Thermal) is a combined version of photovoltaics and solar thermal collector to gener...
Hojati, Mohammadreza Mansouri, Ehsan Moradzadeh, Hassan
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
The Stirling engine is a type of external heat engine that can convert renewable energy forms to electricity or mechanical rotation. Therefore, monitoring and controlling some of its parameters such as its speed is a demand. The purpose of this paper is to control a Stirling engine flywheel rotation speed using an intelligent parameter predictor fo...
Ghadiri, Hamid Mohammadi, Alireza Khodadadi, Hamed
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
This research presents a nonlinear fast terminal sliding mode controller (FTSMC) based on a state-dependent Riccati equation (SDRE) observer for a two-degree-of-freedom gimbal system considering the external disturbances. The control of the gimbal system faced several challenges, which the nonlinearities and external disturbances are two of the mai...
Arnavaz, S. Zeinoddini, M. Ezzati, M. Zandi, A. P. Yadegari, M. J.
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
Repair welds are frequently used to fix defects in the manufacturing process, remedy in-service degradations, and for the life extension of ageing steel components and pressure vessels. Nevertheless, repair welds may exert detrimental impacts on the integrity of these structures in the long term. The primary focus of the current study is on the vee...
Yang, Xuefeng You, Youpeng Yang, Wen-An
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
The machining corners are an important feature of aircraft structure components. In the process of high-speed milling of the corner, the discontinuity of tangential direction and curvature of the tool path can lead to frequent starting and stopping of speed, sharp change of cutting force and feed direction, which will result in violent vibration of...
