RSS 1.0Artigos - Engenharia Mecânica - FEB
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Low-cost piezoelectric transducer for ceramic grinding monitoring
Viera, Martin A. Aulestia
; De Aguiar, Paulo R. ; Junior, Pedro Oliveira ; ; ; Alexandre, Felipe A. ; Bianchi, Eduardo C. (IEEE Sensors Journal, 2019) [Artigo]
This paper presents a performance assessment of the low-cost thin-disk piezoelectric diaphragm (PZT) for the surface integrity monitoring in the grinding operation. PZT diaphragms are flexible, low-cost, and smart devices, ... -
Thermal model for surface grinding application
de Martini Fernandes, Lucas; Lopes, José Claudio ; Ribeiro, Fernando Sabino Fonteque ; ; ; de Angelo Sanchez, Luiz Eduardo ; de Aguiar, Paulo Roberto ; de Mello, Hamilton José ; Bianchi, Eduardo Carlos (International Journal of Advanced Manufacturing Technology, 2019) [Artigo]
Due to the characteristics of the grinding process, thermal damage may occur in the workpiece surface, resulting in the rejection of a component and considerably increasing the production costs. This study aims to analyze ... -
Effect of hardened steel grinding using aluminum oxide wheel under application of cutting fluid with corrosion inhibitors
Talon, Anthony Gaspar; Lopes, José Claudio ; Tavares, André Bueno ; Sato, Bruno Kenta ; ; ; ; de Mello, Hamilton José ; Aguiar, Paulo Roberto ; Bianchi, Eduardo Carlos (International Journal of Advanced Manufacturing Technology, 2019) [Artigo]
A new category of corrosion inhibitors has been formulated. It uses water to propagate and it has been generically referred as V-active VCI®. These inhibitors promote a greater lubricity and detergency effect, used as ... -
Digital signal processing for self-vibration monitoring in grinding: A new approach based on the time-frequency analysis of vibration signals
Thomazella, Rogério; Lopes, Wenderson Nascimento ; Aguiar, Paulo Roberto ; Alexandre, Felipe Aparecido ; ; Bianchi, Eduardo Carlos (Measurement: Journal of the International Measurement Confederation, 2019) [Artigo]
The occurrence of chatter can generate parts outside the dimensional and geometric tolerances or even cause irreversible damage, such as changes to the hardness and surface roughness of the ground part. The objective of ... -
Damage patterns recognition in dressing tools using PZT-based SHM and MLP networks
Junior, Pedro Oliveira C.; ; ; Aguiar, Paulo R. ; Baptista, Fabricio G. ; Bianchi, Eduardo C. ; (Procedia CIRP, 2019) [Trabalho apresentado em evento]
In order to promoting the optimization of the theme: grinding-dressing, this study intends to contribute to the fill the gap of works completed with the damage diagnostic systems in dressing tools. For this purpose, this ... -
Acoustic image-based damage identification of oxide aluminum grinding wheel during the dressing operation
Dotto, Fábio R.L.; Aguiar, Paulo R. ; Alexandre, Felipe A. ; Simões, Leonardo ; Lopes, Wenderson N. ; ; Bianchi, Eduardo C. (Procedia CIRP, 2019) [Trabalho apresentado em evento]
Grinding is a finish process of parts that require high precision and tight dimensional tolerance, which owe high value-added. As the grinding process takes place, the cutting surface of the grinding wheel undergoes wear ... -
Study on the effect of the temperature in acoustic emission sensor by the pencil lead break test
Lopes, Barbara Guedes; Alexandre, Felipe Aparecido ; Lopes, Wenderson Nascimento ; Aguiar, Paulo Roberto De ; Bianchi, Eduardo Carlos ; Viera, Martin Antonio Aulestia (2018 13th IEEE International Conference on Industry Applications, INDUSCON 2018 - Proceedings, 2019) [Trabalho apresentado em evento]
The Pencil Lead Break (PLB) method is used to reproduce an artificial source of acoustic emission. This method consists of breaking a pencil lead which has its size and thickness determined carefully in a certain angle in ... -
Monitoring of self-excited vibration in grinding process using time-frequency analysis of acceleration signals
Lopes, Wenderson Nascimento; Thomazella, Rogerio ; Alexandre, Felipe A. ; De Aguiar, Paulo Roberto ; Bianchi, Eduardo Carlos ; De Junior, Bento Rodrigues Pontes ; Viera, Martin A. Aulestia (2018 13th IEEE International Conference on Industry Applications, INDUSCON 2018 - Proceedings, 2019) [Trabalho apresentado em evento]
Grinding is a finish manufacturing process for high precision parts. As the part has high value added at this stage, anomalies and defects are unacceptable. Self-excited vibration or just chatter is an undesirable and ... -
Thermal efficiency experimental evaluation of solar flat plate collectors when introducing convective barriers
; Oliveira, Santiago del Rio; Scalon, Vicente Luiz (Solar Energy, 2019) [Resenha]
The increase of renewable sources in power generation is a global concern. Research and development of renewable energy devices use are leading to changes in the global energy mix. In this scenario, solar energy has a great ... -
Correlation between surface roughness and AE signals in ceramic grinding based on spectral analysis
Aulestia Viera, M. A.; Alexandre, F. A. ; Aguiar, P. R. ; ; Bianchi, E. C. (MATEC Web of Conferences, 2018) [Trabalho apresentado em evento]
The study and monitoring of the workpiece surface roughness is one of the most important parameters of the grinding process. This paper proposes a method for analysing the surface condition of ground ceramic components by ... -
Damage detection in grinding of steel workpieces through ultrasonic waves
Alexandre, F.; Aguiar, P. R. ; Götz, R. ; Fernandez, B. O. ; Lopes, W. N. ; ; Bianchi, E. C. ; (MATEC Web of Conferences, 2018) [Trabalho apresentado em evento]
The quality control of the workpieces through reliable tests is of utmost importance in the manufacturing of a precision component. In this context, the monitoring of damages towards automation of the grinding process is ... -
Inhibitory killer cell immunoglobulin-like receptors strengthen CD8+ T cell–mediated control of HIV-1, HCV, and HTLV-1
; ; Silveira, Marcos; ; ; ; ; ; ; et al. (Science Immunology, 2018) [Artigo]
Killer cell immunoglobulin-like receptors (KIRs) are expressed predominantly on natural killer cells, where they play a key role in the regulation of innate immune responses. Recent studies show that inhibitory KIRs can ... -
Parameter optimization and active control of electromechanical suspension systems
Kuhnert, Willian Minnemann; Silveira, Marcos ; Gonçalves, Paulo José Paupitz (Lecture Notes in Mechanical Engineering, 2018) [Capítulo de livro]
This paper has as object of study a simplified model for the the automobile suspension system, which can become a regenerative system by coupling a RLC electric circuit to the mechanical system. The main objectives of this ... -
A Time-Frequency Acoustic Emission-Based Technique to Assess Workpiece Surface Quality in Ceramic Grinding with PZT Transducer
(Sensors (Basel, Switzerland), 2019) [Artigo]Innovative monitoring systems based on sensor signals have emerged in recent years in view of their potential for diagnosing machining process conditions. In this context, preliminary applications of fast-response and ... -
Mechanical adhesion strength on pine wood surfaces planed and bonded by pvac adhesives
Biazzon, João Carlos; ; Alves, Paulo Roberto Gomes ; Morales, Elen Aparecida Martines ; Gonçalves, Marcos Tadeu Tibúrcio ; De Domenico Valarelli, Ivaldo (Revista Materia, 2019) [Artigo]
This study aimed to analyze the performance of bonded joints of the Pinus elliottii wood species with the use of two commercial adhesives based on vinyl polyacetate (PVAc) with different physical characteristics and chemical ... -
Impedance-based PZT transducer and fuzzy logic to detect damage in multi-point dressers
Junior, Pedro O.; ; Alexandre, Felipe A. ; Ruzzi, Rodrigo ; Aguiar, Paulo R. ; Baptista, Fabricio G. ; Bianchi, Eduardo C. (Lecture Notes in Mechanical Engineering, 2019) [Capítulo de livro]
Alternative techniques such as impedance-based lead zirconate titanate (PZT) transducers has emerged as an innovative approach for manufacturing monitoring process, because its flexibility of using low-cost piezoelectric ... -
Numerical validation of viewfactor and FVDOM radiation models of openfoam ® and application in the study of food furnaces
; Scalon, Vicente Luiz; ; (Ingeniare, 2018) [Artigo]
Continuous tunnel furnace has greater flexibility in heating and high productivity and it was becoming the best option for processing industrialized food products. The main objective of this work is the validation of the ... -
Utilization of a new approach for the potassium concentration of sugarcane vinasse by reverse osmosis: case study
; Ferreira, S. L.; ; ; (International Journal of Environmental Science and Technology, 2019) [Artigo]
Ethanol is an alternative fuel produced from sugarcane and economically very important for São Paulo state and Brazil. Vinasse, which has been traditionally distributed on the agricultural soil as an organic fertilizer, ... -
The contributions of Prof. Vicente Lopes Jr to smart structures research
Gonsalez Bueno, Camila G.; Faria, Cássio T. ; Bueno, Douglas D. ; Gonçalves, Paulo J. Paupitz ; da Silva, Samuel (Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2019) [Carta]
The scientific career of Vicente Lopes Jr at UNESP—Ilha Solteira—spanned three decades in which he worked on new applications of smart structures in structural health monitoring and active vibration control. Prof. Lopes ... -
Study of intake manifolds of an internal combustion engine: A new geometry based on experimental results and numerical simulations
; ; Ferreira, Sérgio Lucas; ; (Thermal Science and Engineering Progress, 2019) [Artigo]
During the intake period in internal combustion engines, it has been noted that the cylinder volume is not completely occupied due to the variation of specific volume and the pressure drop along the supply system. Consequently, ...