ISSN 2594-5297
56° Seminário de Laminação e Conformação de Metais — vol. 56, num.56 (2019)
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Abstract
Gearbox Stand Mill LF 02 Pass 1 presented failures of internal components, such as bearings and gears. In order to determine its root cause, a dynamic evaluation of the Gearbox before process variables was performed. Thus, the following engineering tools were applied: Vibration Analysis, Operating Deflection Shape – ODS and Numerical Simulation by Finite Element Method - FEM. Vibration and ODS highlighted excitation frequencies, operational modes, which in these frequencies caused relative movements. Results obtained by Vibration and ODS were correlated to simulation, allowing to calibrate FEM model. Also, during simulation, Component Modal Synthesis technique was used, allowing evaluation of the fatigue life internal components. Based on field and numerical results obtained in this study, recommendations were: to verify alignment conditions, machine geometry using laser systems, and also application of the structural modifications on the support of gearbox to eliminate a resonance condition.
Gearbox Stand Mill LF 02 Pass 1 presented failures of internal components, such as bearings and gears. In order to determine its root cause, a dynamic evaluation of the Gearbox before process variables was performed. Thus, the following engineering tools were applied: Vibration Analysis, Operating Deflection Shape – ODS and Numerical Simulation by Finite Element Method - FEM. Vibration and ODS highlighted excitation frequencies, operational modes, which in these frequencies caused relative movements. Results obtained by Vibration and ODS were correlated to simulation, allowing to calibrate FEM model. Also, during simulation, Component Modal Synthesis technique was used, allowing evaluation of the fatigue life internal components. Based on field and numerical results obtained in this study, recommendations were: to verify alignment conditions, machine geometry using laser systems, and also application of the structural modifications on the support of gearbox to eliminate a resonance condition.
Keywords
Process, Vibration, Operational mode, Natural Frequency, Bearings, Gears
Process, Vibration, Operational mode, Natural Frequency, Bearings, Gears
How to refer
Picoli, Everton;
Severino, Henrique da Rocha;
Castro, Renato Nascimento de;
Moretti, Ramon Augusto;
Carletti, Gabriel Oliveira Nascimento;
Fujimoto, Rodrigo Yoshiaki;
Santos, Edmilson Ricardo de Oliveira.
EVALUATION OF THE DYNAMIC BEHAVIOR OF GEARBOX STAND MILL LF 02 PASS 1 BEFORE PROCESS VARIABLES
,
p. 91-101.
In: 56° Seminário de Laminação e Conformação de Metais,
São Paulo,
2019.
ISSN: 2594-5297
, DOI 10.5151/2594-5297-32387
