ARDANIA, LUTFI (2026) ANALISA NILAI SEVERITY PADA BEARING MESIN DRUM TEST MENGGUNAKAN METODE FAST FOURIER TRANSFORM DAN ISO 20816-1. S2 thesis, Universitas Mercu Buana Jakarta - Menteng.
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Abstract
Keandalan mesin uji drum dalam pengujian ban sangat dipengaruhi oleh kondisi komponen mekanis, terutama bantalan. Getaran yang dihasilkan selama variasi kecepatan tinggi dan beban dapat meningkatkan tingkat keparahan dan mempercepat kerusakan bantalan. Penelitian ini bertujuan untuk menganalisis tingkat keparahan getaran bantalan mesin uji drum menggunakan metode Fast Fourier Transform (FFT) dan mengevaluasi hasilnya berdasarkan standar International Organization for Standardization (ISO) 20816-1. Data getaran dikumpulkan langsung dari bantalan selama pengujian ban menggunakan akselerometer tiga sumbu ADXL345 yang terhubung ke Arduino UNO R4 WIFI. Sinyal percepatan diproses melalui penentuan sampling frequency, penghilangan Direct Current (DC) offset, penerapan high-pass filter 10 Hz, implementasi Hann window, segmentasi Welch, dan transformasi FFT untuk memperoleh spektrum frekuensi. Spektrum percepatan kemudian dikonversi menjadi kecepatan untuk menghitung nilai kecepatan Root Mean Square (RMS). Analisis mengidentifikasi frekuensi dominan sebesar 17,693 Hz pada sumbu radial. Nilai kecepatan RMS yang dihitung adalah 6,897 mm/s (sumbu X), 7,670 mm/s (sumbu Y), dan 2,153 mm/s (sumbu Z). Berdasarkan klasifikasi ISO 20816-1, sumbu X dikategorikan sebagai Unsatisfactory, sumbu Y sebagai Unacceptable, dan sumbu Z sebagai Satisfactory. Hasil penelitian menunjukkan bahwa bearing tersebut beroperasi pada tingkat getaran yang tinggi dalam kondisi beban, sehingga memerlukan evaluasi mekanis untuk mencegah potensi kegagalan. The reliability of drum test machines in tire testing is strongly influenced by the condition of mechanical components, particularly bearings. Vibrations generated during high-speed and load variations can increase severity levels and accelerate bearing degradation. This study aims to analyze the vibration severity of drum test machine bearings using the Fast Fourier Transform (FFT) method and evaluate the results based on International Standard Organization (ISO) 20816-1 standards. Vibration data were collected directly from the bearing during tire testing using a three-axis ADXL345 accelerometer connected to an Arduino UNO R4 WIFI. The acceleration signals were processed through sampling frequency determination, Direct Current (DC) offset removal, application of a 10 Hz highpass filter, Hann window implementation, Welch segmentation, and FFT transformation to obtain the frequency spectrum. The acceleration spectrum was then converted into velocity to calculate the Root Mean Square (RMS) velocity values. The analysis identified a dominant frequency at 17.693 Hz on the radial axes. The calculated RMS velocity values were 6.897 mm/s (X-axis), 7.670 mm/s (Yaxis), and 2.153 mm/s (Z-axis). According to ISO 20816-1 classification, the X-axis is categorized as Unsatisfactory, the Y-axis as Unacceptable, and the Z-axis as Satisfactory. The results indicate that the bearing operates at a high vibration severity level under load conditions, requiring corrective mechanical evaluation to prevent potential failure.
| Item Type: | Thesis (S2) |
|---|---|
| NIM/NIDN Creators: | 55422110004 |
| Uncontrolled Keywords: | Fast Fourier Transform, RMS velocity, nilai severity, bearing, ISO 20816-1, mesin drum test. Fast Fourier Transform, RMS velocity, severity value, bearing, ISO 20816-1, drum test machine. |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.3 Electrical Engineering, Lighting, Superconductivity, Magnetic Engineering, Applied Optics, Paraphotic Technology, Electronics Communications Engineering, Computers/Teknik Elektro, Pencahayaan, Superkonduktivitas, Teknik Magnetik, Optik Terapan, Tekn |
| Divisions: | Pascasarjana > Magister Teknik Elektro |
| Depositing User: | ARDIFTA DWI AFRIANI |
| Date Deposited: | 05 May 2026 02:01 |
| Last Modified: | 05 May 2026 02:01 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/102114 |
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