Abstract
This paper describes the use of jerk signal, a signal obtained from differentiation of the acceleration signal with respect to time, for detecting the early damage of a bearing and bad lubrication conditions. The use of jerk signal is expected to result more sensitive detection than that obtain using acceleration signal. To prove this hypothesis, this paper shows the results of vibration measurement for needle bearings and taper roller bearings with variation of load level, types of bearing damage, and lubrication condition. Comparisons of acceleration and jerk signals are performed in both time domain, by comparing their RMS values, as well as in frequency domain, by comparing their spectrums. The results of the experiment show that the use of jerk signal can give a more sensitive result in detecting bearing damage than that produced using acceleration signal. Moreover, the use of jerk signal can lead to better results in detecting bad lubrication of rolling bearing than that obtain using Crest Factor (CF) value.
Highlights
This paper describes the use of jerk signal, a signal obtained from differentiation of the acceleration signal with respect to time, for detecting the early damage of a bearing and bad lubrication conditions
To prove this hypothesis, this paper shows the results of vibration measurement for needle bearings and taper roller bearings with variation of load level, types of bearing damage, and lubrication condition
6. Abidin, Z. dan Purnama, F., Kesalahan Akibat Deferensiasi Numerik pada Sinyal Pengukuran Getaran dengan Metoda Beda Maju, Mundur, dan Tengah, Jurnal Teknik Mesin, Universitas Kristen Petra, Vol 11, No.2, 2009
Summary
Makalah ini mengungkapkan penggunaan sinyal jerk, yaitu sinyal turunan terhadap waktu dari sinyal percepatan, untuk mendeteksi kerusakan dini bantalan gelinding dan memantau kondisi pelumasannya. Penggunaan sinyal jerk diharapkan lebih sensitif dibandingkan sinyal percepatan getaran dalam mendeteksi kerusakan dini bantalan gelinding. Dalam makalah ini diketengahkan hasil pengukuran percepatan dan jerk pada bantalan gelinding jarum dan kerucut dengan variasi besar beban, jenis cacat, dan kondisi pelumasan. Perbandingan sinyal percepatan getaran dan jerk dilakukan dalam domain waktu maupun domain frekuensi. Hasil pengujian yang diperoleh menunjukkan bahwa sinyal jerk lebih sensitif untuk mendeteksi kerusakan bantalan gelinding dibandingkan sinyal percepatan getaran. Sinyal jerk juga lebih baik digunakan dalam mendeteksi kondisi pelumas yang buruk dibandingkan dengan nilai CF (Crest Factor). Kata kunci: Jerk, percepatan, bantalan gelinding, kondisi pelumasan
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
