OPTIMIZATION OF DYNAMIC VIBRATION ABSORBERS BASED ON EQUAL-PEAK THEORY

VINICIUS PICCIRILLO; ANGELO MARCELO TUSSET; JOSE MANOEL BALTHAZAR

OPTIMIZATION OF DYNAMIC VIBRATION ABSORBERS BASED ON EQUAL-PEAK THEORY

Authors

VINICIUS PICCIRILLO UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ (UTFPR), PONTA GROSSA, PR, BRASIL HTTPS://ORCID.ORG/0000-0001-5442-3402
ANGELO MARCELO TUSSET UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ (UTFPR), PONTA GROSSA, PR, BRASIL HTTPS://ORCID.ORG/0000-0003-3144-0407
JOSE MANOEL BALTHAZAR UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ (UTFPR), PONTA GROSSA, PR, BRASIL HTTPS://ORCID.ORG/0000-0002-9796-3609

Abstract

THE PRESENT PAPER PROPOSES A NEW PROCEDURE TO DETERMINE THE OPTIMAL PARAMETERS OF A DYNAMIC VIBRATION ABSORBER (DVA), CONSIDERING BOTH DAMPED AND UNDAMPED PRIMARY SYSTEM. THE DVA DESIGN IS FORMULATED AS AN OPTIMIZATION PROBLEM IN WHICH THE OBJECTIVE FUNCTION IS CONSTRUCTED BASED ON DEN HARTOG'S EQUAL-PEAK METHOD. THE DVA PARAMETERS ARE SELECTED TO MINIMIZE THE RESPONSE OF THE PRIMARY SYSTEM WHEN IT IS SUBJECTED TO HARMONIC FORCE OR BASE MOTION. FIRSTLY, WE PROPOSE A NUMERICAL STRATEGY BASED ON FREQUENCY RESPONSE CURVE (FRC) IN WHICH THE PARAMETERS OF THE ABSORBER ARE UPDATED BY MINIMIZING THE OBJECTIVE FUNCTION. THE RESULTS ARE PRESENTED FOR A SET OF REFERENCE PARAMETERS, WHICH DEMONSTRATE THE FEASIBILITY OF THE PROPOSED METHOD FOR DETERMINING THE OPTIMAL PARAMETERS OF THE ABSORBER FOR BOTH EXCITATIONS. TAKING INTO ACCOUNT THE SYSTEM RESPONSE WITH RESPECT TO REFERENCE PARAMETERS, THE BILINEAR INTERPOLATION TECHNIQUE WAS EMPLOYED IN ORDER TO OBTAIN EXPLICIT FORMULAS OF THE DAMPING AND FREQUENCY RATIOS OF THE DVA.

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Published

2019-03-15

Issue

Vol. 16 No. 4 (2019)

Section

Articles

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