The quality of our projects is guaranteed by a complete infrastructure, and by the extensive technical and applied knowledge of our employees. Our engineering team has over 30 years of experience serving national and international customers.

Vibroacústica was founded by partners Edmar Baars and Celso Kenzo Takemori, mechanical engineers with over 45 years of experience. The team is completed by engineers Diego Willian da Silva and Gustavo Rafael Bernardes.

Associate engineers

Luiz von Dokonal

Luiz von Dokonal

Technical advisor

Vibroacoustic technical consultant, with over 30 years of experience in engine technologies. More than twenty registered patents.
More than ten articles published.


Vibroacoustics – 2015-present

Technical consultancy in legal cases involving electric motors and related technologies
Technical advice on patent litigation
Engine design for compressors and washing machines
Development of engine test procedures

Whirlpool – 2010-2015
Activities developed as a consultant.
Engine design team management to develop Whirlpool units worldwide
Development of Whirlpool’s first in-house design inverter powered washing machine motor

Embraco – 1991-2010
Development of motor technology used in VCC compressors
Development of induction motors for compressors
Engine analysis and numerical analysis

Federal University of Santa Catarina
Doctorate in Electric Motors – 2015-current

Santa Catarina State University
Master in Control and Automation Engineering – 2002
Bachelor of Electrical Engineering – 1992

Marcos Giovani Dropa de Bortoli

Marcos Giovani Dropa de Bortoli

Mechanical Engineer

Mechanical engineer with over 30 years of experience in structural aspects of refrigeration compressors.

Active member of Embraco teams responsible for important research and development projects to increase energy efficiency and optimize resource use.

Author of 14 scientific articles – mainly at Purdue University, USA
77 patents registered.

Great experience in FEM engineering, developing domestic software and implementing the ANSYS system.

More than 30 studies presenting the use of FEM engineering in the main Brazilian and international congresses.

Extensive experience in solving quality problems, applying methods such as FMEA, DRBFM, Six Sigma, and reliability software.
Instructor in ANSYS courses.

Santa Catarina State University
PhD in Engineering and Material Sciences – 2020

Master’s in Organizational Behavior – 2006

Federal University of Santa Catarina
Master in Mechanical Engineering – 1985
Bachelor of Mechanical Engineering – 1982

Edvar Scholze

Edvar Scholze

Technical sale

Technical sale of forging machine
Technical sales of grinding machines
Development of prototypes for Vibroacoustics
12 years of experience as prototype coordinator (Embraco)
CAD/CAM Specialist
CNC programmer
tool developer

Embraco – 1991-2013
Prototype coordinator for linear compressors, high speed, VCC, external rotors, rotors, Scroll, EM, EG, among others.

MBA in Information Technology
Bachelor’s Degree in Computer Science
Technical course in Mechanics

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