Prof. Marcus Varanis

Marcus Varanis.

Marcus Varanis é professor no Instituto de Física da Universidade Federal do Mato Grosso do Sul (UFMS), Brasil. Obteve seu doutorado em Engenharia Mecânica pela Faculdade de engenharia mecânica (FEM) da Universidade Estadual de Campinas (UNICAMP), realizou tambem estagio de Pós-Doutorado na Faculdade de engenharia de Bauru, departamento de engenharia mecânica (UNESP-Bauru) e seu interesse no ensino e pesquisa estão relacionados à dinâmica não-linear, processamento de sinais (e, em particular, diferentes aspectos da análise tempo-frequência), mecânica dos sólidos e instrumentação para o ensino de engenharia/física.

Marcus Varanis is an Professor at the Physics Institute of the Federal University of Mato Grosso do Sul (UFMS), Brazil. Obtained his D.Sc. in Mechanical Engineering from Faculty of mechanical engineering of the University of Campinas (UNICAMP), also held a post-doctoral internship at the Faculty of Engineering of Bauru, Department of Mechanical Engineering (UNESP-Bauru) and his interest is in teaching and research related to nonlinear dynamics, signal processing (and in particular different aspects of time-frequency analysis), solid mechanics and instrumentation for engineering/physics teaching.

Research

The focus of our research group is investigate the nonlinear interactions in mechanical systems and the study of non-ideal systems, as well as the estimation of parameters, through the use of signal processing techniques and time-frequency analysis, based on the Hilbert-Huang transform , wavelet methods, synchrosqueezed transform and multifractal analysis. For this, will be made the modeling of dynamic systems and computational simulation and experimental tests.

Another interest of our group is about the use of Raspberry pi and Arduino microcontroller together with MEMS sensors to measure vibrations in mechanical systems. The main objective is to assemble a signals acquisition system easy to handle, of low cost and good accuracy for teaching and industrial purposes. It is also used the Python language and its numerical libraries for acquisition and signal processing.


More about my research...


Publications and Lectures.

An updated list with all my academic production include Book chapters, conference papers and others documents can be seen on my ResearchGate profile.


Refereed Journal Articles.


  1. A Short Note on Synchrosqueezed Transforms for Resonant Capture, Sommerfeld Effect and Nonlinear Jump Characterization in Mechanical Systems. Journal of Vibration Engineering & Technologies . http://dx.doi.org/10.1007/s42417-021-00404-9
  2. An acquisition system framework for mechanical measurements with Python, Raspberry-Pi and MEMS sensors. Revista Brasileira do Ensino de Física (2021). https://doi.org/10.1590/1806-9126-rbef-2020-0167
  3. A Tutorial Review on Time-Frequency Analysis of Non-Stationary Vibration Signals with Nonlinear Dynamics Applications. Brazilian Journal Physics (2021). https://doi.org/10.1007/s13538-020-00842-y
  4. Numerical and experimental investigation of the dynamic behavior of a cantilever beam driven by two non-ideal sources. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 42, 516 (2020). https://doi.org/10.1007/s40430-020-02589-8
  5. A comparison of time-frequency methods for nonlinear dynamics and chaos analysis in an energy harvesting model. Brazilian Journal of Physics. v. 1, p. 64, 2020. DOI:10.1007/s13538-019-00733-x
  6. Modeling and Experimental Validation of Two Adjacent Portal Frame Structures Subjected to Vibro-impact. Latin American Journal of Solids and Structures. v. 16, p. 1, 2019. DOI:10.1590/1679-78255435
  7. Dynamics and control of periodic and non-periodic behavior of Duffing vibrating system with fractional damping and excited by a non-ideal motor. JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS. v. 16, p. 1, 2019. DOI:10.1016/j.jfranklin.2019.11.048
  8. On mechanical vibration analysis of a multi degree of freedom system based on arduino and MEMS accelerometers. Revista Brasileira de Ensino de Física (São Paulo).v. 40, p. 1-10, 2018. DOI:10.1590/1806-9126-rbef-2017-0101
  9. Statements on wavelet packet energy-entropy signatures and filter influence in fault diagnosis of induction motor in non-stationary operations. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING. v. 40, p. 98, 2018. DOI:10.1007/s40430-018-1025-8
  10. Remarks on the Sommerfeld effect characterization in the wavelet domain. Journal of Vibration and Control. v. 1, p. 107, 2018.DOI:10.1177/1077546318771804
  11. A short remark on the modelling of a three-story shear-building structure. REVISTA BRASILEIRA DE ENSINO DE FÍSICA (ONLINE). v. 41, p. 1, 2018. DOI:10.1590/1806-9126-rbef-2018-0117
  12. Experimental evaluation of a vibro-impact model for two adjacent shear-building structures. MATEC WEB OF CONFERENCES, v. 211, p. 03004, 2018. DOI:10.1051/matecconf/201821103004
  13. MEMS accelerometers for mechanical vibrations analysis: a comprehensive review with applications. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING (ONLINE). v. 40, p. 1-20, 2018. DOI:10.1007/s40430-018-1445-5
  14. A study of strain and deformation measurement using the Arduino microcontroller and strain gauges devices. REVISTA BRASILEIRA DE ENSINO DE FÍSICA (ONLINE). v. 41, p. 1, 2018. DOI:10.1590/1806-9126-rbef-2018-0206
  15. Mathematical model of a vehicle crash: A case study. INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING EDUCATION, v. 45, p. 89-100, 2017. DOI:10.1177/0306419016669037
  16. Impact Dynamics Models: a Short Review on Nonlinearities Effects. INTERNATIONAL REVIEW OF MECHANICAL ENGINEERING (TESTO STAMPATO), v. 11, p. 167, 2017. DOI:10.15866/ireme.v11i3.11035
  17. Instrumentation for mechanical vibrations analysis in the time domain and frequency domain using the Arduino platform. REVISTA BRASILEIRA DE ENSINO DE FÍSICA (ONLINE), v. 38, p. 1301-1-1301-10, 2016. DOI:10.1590/S1806-11173812063
  18. Instrumentation Of a Nonlinear Pendulum Using Arduino Microcontroller. Revista Interdisciplinar de Pesquisa em Engenharia - RIPE, v. 2, p. 1, 2016. DOI:10.26512/ripe.v2i27.14447
  19. Mathematical Model Of a Collision Based On a Spring-Mass-Damper System With a Nonlinear Spring Behavior. Revista Interdisciplinar de Pesquisa em Engenharia - RIPE, v. 2, p. ', 2016. DOI:10.26512/ripe.v2i25.20847

Collaboration

Next a list with the current contacts, collaborators and partners active of our research group.


Teaching

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