Since 1963
ARTICLE
Resonance of a rotary machine support beam considering geometric stiffness
1
Federal University of Bahia (UFBA), Polytechnic School, Department of Construction and Structures, Salvador, Brazil
2
University of São Paulo (USP), Polytechnic School, Department of Structural and Geotechnical Engineering, São Paulo, Brazil
3
Federal University of Technology of Parana (UTFPR), Department of Electronics, Ponta Grossa, Brazil
Submission date: 2020-02-02
Acceptance date: 2020-04-20
Online publication date: 2020-10-15
Publication date: 2020-10-15
Corresponding author
Alexandre de Macêdo Wahrhaftig
Polytechnic School, Department of Construction and Structures, Federal University of Bahia (UFBA), Rua Aristides Novís, Nº 02, 5º andar, Federação, 40210-910, Salvador – BA, Brazil
Polytechnic School, Department of Construction and Structures, Federal University of Bahia (UFBA), Rua Aristides Novís, Nº 02, 5º andar, Federação, 40210-910, Salvador – BA, Brazil
Journal of Theoretical and Applied Mechanics 2020;58(4):1023–1035
KEYWORDS
TOPICS
solid mechanicsstability and vibrations systemscomputational mechanicsexperimental mechanicsmechanics of continuastructures mechanics
ABSTRACT
The effects of axial compressive forces on free vibration frequencies of rotating machine
support beams are investigated taking into account their geometric stiffness. One class of
structures that has economic and strategic importance is the base of machines, which is
excited by vibrations induced by the supported equipment. These vibrations can affect the
structures or, more generally, may generate damage to the supported equipment and the
quality of production. They may also render human working conditions difficult. In the
current work, these effects are studied via mathematical modeling, numerical simulation
and experimental evaluation.
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