Vibration Analysis on GT Ventilation Fan of LNG Cryogenic Process

Mochamad Bhakti Prasastia Utama, Ir. Gatot Santoso, MT, Dr.Ir. M, NPM. 178070004 (2022) Vibration Analysis on GT Ventilation Fan of LNG Cryogenic Process. Thesis(S2) thesis, UNIVERSITAS PASUNDAN.

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Abstract

The majority of Vibration Analysts in the world agree that looseness is one of the five most common causes of breakdowns that result in excessive engine vibration, along with eccentricity, unbalance, and misalignment. The best solution to solve the looseness problem is to install the machine properly. Another possible temporary solution to solve the looseness problem is to install a dynamic absorber, a device designed to have the same reaction frequency as the dominant vibration direction of the structure itself that will counteract the initial motion. Vibrations from the machine will form a signal that can be detected by the CSI Analyzer 2130 tool to produce a vibration signal. The signal can be analyzed as damage to the machine from this vibration. Like the damage done to the GT Ventilation Fan base frames. The study analyzed vibrational signals in damaged Base frames by monitoring Spectrum signals at 12.5 Hz, the difference was seen in the shape of the spectral signal and vibrational waveform. In addition, the overall value also shows an increase in the GT Ventilation Fan Motor Side. The overall value produced on the damaged Base frames can reach more than 15 mm/sec RMS on the motor outboard vertical side. In contrast to the system under normal conditions with an overall value of 1.433 mm/sec RMS. The overall value of the damaged system has exceeded the vibration limit of 4.5 mm/sec RMS. Keywords: CSI Analyzer 2130, Vibration, Frequency, Spectrum, Waveform, Crack, Ventilation Fan.

Item Type: Thesis (Thesis(S2))
Subjects: RESEARCH REPORT
Divisions: Pascasarjana > S2-Teknik Mesin 2022
Depositing User: asep suryana
Date Deposited: 31 Jan 2022 03:00
Last Modified: 31 Jan 2022 03:00
URI: http://repository.unpas.ac.id/id/eprint/55446

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