Journal of the Brazilian Society of Mechanical Sciences and Engineering

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Effect of multi-infill patterns on tensile behavior of FDM printed parts
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 43 - Trang 1-15 - 2021
Harshit K. Dave, Brijesh H. Patel, Shilpesh R. Rajpurohit, Ashish R. Prajapati, Dumitru Nedelcu
Fused Deposition Modeling (FDM) is an extrusion-based additive manufacturing technique which growing rapidly due to its ability to fabricate complex parts directly from CAD models. In conjunction with its growing applications, the mechanical behavior of the FDM printed part needs thorough investigation for effective application as an end use functional part in various industries such as aerospace,...... hiện toàn bộ
Design and analysis of optimal die profile for the extrusion of round SiC DRMM Al 6061 composite billet into hexagonal section
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 37 - Trang 1687-1700 - 2014
C. Venkatesh, R. Venkatesan
Aluminium based matrix composites with silicon carbide as particle reinforcement called discontinuous reinforced metal matrix composites (DRMMs) have excellent mechanical properties like high yield strength, resistance to wear and vibration resistance. But during the development of DRMM composites, compression process like extrusion is an advisable secondary process for homogenous structure. This ...... hiện toàn bộ
A survey of stability in curved-beam/curved-electrode MEMS element
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 43 - Trang 1-12 - 2021
E. Akrami Nia, H. Ekhteraei Toussi
As the main anti-stability factor, pull-in type of instability has always been a decisive concern in design and usage of micro-electro-mechanical systems. Curved microbeams have been devised to extend the range of stability in these systems. Snap-through is another type of instability which appears as a sudden jump in beam curvature from one configuration to another counterpart state. In order to ...... hiện toàn bộ
Simulation and experimental study on surface residual stress of ultra-precision turned 2024 aluminum alloy
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 42 - Trang 1-7 - 2020
Xubo Liu, Ruiliang Xiong, Zhiwen Xiong, Shaojian Zhang, Li Zhao
In order to reveal the influence of cutting parameters on the surface residual stress of 2024 aluminum alloy in ultra-precision cutting, the thermal coupling simulation of 2024 aluminum alloy ultra-precision cutting process was carried out based on ABAQUS software, and it was verified by the residual stress test of ultra-precision machined samples. The results show that the dominant factor of the ...... hiện toàn bộ
Time-domain simulation of acoustic impedance tubes
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 39 - Trang 67-79 - 2016
Alexander Mattioli Pasqual, Luana Torquete Lara
The two-microphone impedance tube method is widely used to measure the absorption and reflection characteristics of acoustic materials under normal incidence. The design of an impedance tube requires a proper choice of the tube dimensions, microphone positions, type of the excitation signal, and loudspeaker response. Although there are ASTM and ISO standards to guide the development and constructi...... hiện toàn bộ
A novel multi-fidelity neural network for response prediction using rotor dynamics and model reduction
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 45 - Trang 1-20 - 2023
Debanshu S. Khamari, Suraj K. Behera
Uncertainties in rotating machines are unavoidable, which affect their parameters and dynamic response. So, instead of employing deterministic models, data-driven meta-modeling techniques which incorporate unpredictability and randomness are necessary for the response variation analysis of rotating systems. The performance of the meta-model relies heavily on the quality and amount of the training ...... hiện toàn bộ
Study of circular Couette flow, Taylor vortex and wavy vortex regimes in Couette–Taylor flows with transient periodic oscillation of the inner cylinder—a computational fluid dynamics analysis
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 43 - Trang 1-21 - 2021
Shima Mahmoudirad, Ebrahim Shirani, Fethi Aloui
In this study, the structure of the fluid flow and vortices are investigated for the circular Couette flow, Taylor vortex and wavy vortex regimes by changing the Womersley number and periods of oscillations of the inner cylinder rotation. The rotational velocity of the inner cylinder, $$\omega$$ , ...... hiện toàn bộ
An integrity analysis approach for development wells
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 38 - Trang 1239-1248 - 2016
J. R. P. Mendes, T. C. da Fonseca, K. Miura
Well integrity may be defined as the capability of the well to prevent leakage into the environment, which is a very important feature for oil and gas wells. A way to prevent leaks during operation is to perform maintenance interventions, seeking to keep redundancy in the well’s safety barriers. Cost assessment regarding the wells maintenance interventions should be done during the initial phases ...... hiện toàn bộ
Experimental and numerical investigation of free inversion mechanism on spherical-capped multi-component circular tubes as energy absorbers
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 45 - Trang 1-16 - 2023
Sajad Azarakhsh, Mohammad Javad Rezvani, Adel Maghsoudpour
Among the energy absorbers, thin-walled tubes can play an essential role in reducing the load on the main structure and protecting the occupants. Therefore, in this article an attempt has been made to improve the performance of spherical-capped circular tubes by using inversion mechanism. To do so, by creating edges on the circular tube, a multi-component tube is formed with different lengths and...... hiện toàn bộ
Bio-inspired a novel dual-cross-module sections cable-driven continuum robot: design, kinematics modeling and workspace analysis
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 45 - Trang 1-17 - 2023
Ammar Amouri, Abdelhakim Cherfia, Ayman Belkhiri, Halim Merabti
In recent years, research on continuum robots has advanced significantly to overcome the limitations of rigid-link robots that particularly suffer when working in a confined environment and have some insecure interaction. To address these issues, this paper proposes a design of a novel Cable-Driven Continuum Robot (CDCR) serially formed by dual-cross-module sections inspired by a fish bone-like st...... hiện toàn bộ
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