Transfer Path Analysis Sebagai Fitur Untuk Deteksi Kerusakan Pada Sistem Pompa Sentrifugal-Beam

Taufan, Ibnu (2018) Transfer Path Analysis Sebagai Fitur Untuk Deteksi Kerusakan Pada Sistem Pompa Sentrifugal-Beam. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengukuran getaran di industri pada umunya dilakukan pada mesin yang sedang beroperasi tetapi ketika terdapat dua mesin yang beroperasi dalam satu pondasi, maka getaran dari masing-masing pompa akan saling mempengaruhi satu sama lain karena adanya transmissibilitas dan mengakibatkan adanya perubahan pola spektrum frekuensi sinyal. Sehingga diperlukan deteksi kerusakan pompa dengan memanfaatkan fitur kerusakan pompa yang ditransmissikan ke pompa disekitarnya. Penelitian ini menggunakan pompa dengan kondisi yaitu normal, unbalance 6 g.cm, unbalance 27 g.cm, misalignment 1 mm, misalignment 2 mm, misalignment 3 mm dan kerusakan bearing. Metode penelitian dalam penelitian ini yaitu simulasi ansys, model matematis dan eksperimen. Pada perbandingan model matematik dan eksperimen di sumbu z di beam, Node ditengah beam node 3 terhadap node 4(sumber) memiliki transmissibilitas lebih dari 100%. Pada pengukuran 2 pompa dengan kondisi pompa nyala dan pompa yang lain mati(dalam skalar) menunjukkan bahwa kerusakan pompa yang menyala dapat dideteksi di pompa mati berdasarkan ISO 13373-1. Gaya operasional (dalam vektor) menggunakan metode Transfer Path Analysis(TPA) di node 1(acuan) ditransmissikan ke node 2, 3, dan 4 melalui struktur beam pada sumbu vertikal. Gaya operasional berbanding lurus dengan penambahan berat massa tambahan(Unbalance), offset(Misalignment), dan area rusak(bearing fault). Gaya operasional berbanding terbalik dengan penambahan jarak dengan node 1(sumber) sebagai acuan. TPA pada pompa unbalance dominan di frekuensi 50 Hz, pompa misalignment dominan di frekuensi 50 Hz, 100 Hz dan 150 Hz, dan pompa bearing fault dominan di 300 Hz, 393 Hz, dan 438 Hz dengan baseline pompa normal. Oleh kerena itu, TPA dapat digunakan untuk mendeteksi kerusakan pompa melalui Transfer Path Analysis di beam. ================================================================================================= The measurement of vibration in the industry is generally done on the machine in operation but when there are two machines operating in one foundation, the vibrations of each pump will affect each other due to the transmissibility and changes of result in the signal frequency spectrum pattern. So that required detection of damage to the pump by utilizing the pump damage feature transmitted to the pump around it. This research use pump with condition that is normal, unbalance 6 g.cm, unbalance 27 g.cm, misalignmet 1 mm, misalignment 2 mm, misalignment 3 mm and bearing damage. Research method in this research use simulation using ansys, mathematical model and experimental. In the comparison of mathematical models and experiments on z axes in beam, node at the middle of beam node 3 to node 4(source) has transmissibility more than 100%. On the measuremetn of 2 pumpa with on and off condition indicates that the damage on pump can be detected at the off pump based on ISO 13373-1. The operational force(in vectors) using Transfer Path Analysis(TPA) method at node 1(reference) is transmitted to nodes 2, 3, and 4 through beam structure on vertical axes. Operational force is directly proportional to the additional of mass weight(Unbalance), offset(Misalignment), and defect area(bearing fault). Operational force is inversely proportional to the addition of distance with node 1(source) as a reference. TPA on unbalance pump dominant in frequency 50 Hz, misalignment dominant pump in frequency 50 Hz, 100 Hz and 150 Hz, and bearing fault pump dominant 300 Hz, 393 Hz, and 438 Hz with normal pump as baseline. Therefore, TPA can be used to detect pump damage through Transfer Path Analysis in beam.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Transmissibility, Mathematical Model, Transfer Path Analysis(TPA), Feature Damage of Pump
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ903 Pumping machinery.
Divisions: Faculty of Industrial Technology > Physics Engineering
Depositing User: Ibnu Taufan
Date Deposited: 09 May 2018 02:25
Last Modified: 09 May 2018 02:25
URI: http://repository.its.ac.id/id/eprint/51562

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