TORSIONAL VIBRATION MEASUREMENTS ON A HELICAL GEAR TESTING DEVICE

• Main Author: HENDRAWAN (NIM : 13105032); Pembimbing Utama : Dr. Ir. Zainal Abidin, ARSYAD
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/15035
• Institution: Institut Teknologi Bandung

Gear is one of machine elements that is widely use in rotating machinery to transmit power. During the process of transmitting power, vibration can occured in gear. Beside translation vibration, vibraton in a gear transmition can also occured in rotational direction that is commonly known as torsional vibration. In PPAU-IR ITB Dynamics Laboratory, research on gear torsional vibration has never been done. This research will focus on the measurement of torsional vibration of a helical gear pair. <br /> <br /> <br /> The measurements performed in this research include FRF (Frequency Response Function) and spectral map measurement. In addition to the spectral map measurement of a torsional vibration, a measurement of lateral vibration and sound <br /> <br /> <br /> that is generated from gear tooth contact are also performed in this research. The spectral map measurement of lateral vibration and sound are dedicated to observe <br /> <br /> <br /> whether there is a correlation between the characteristics of torsional vibration, lateral vibration, and sound. In this research, the measurement is done in two conditions where in the second condition the distance between the center point of a gear are moved by 80 &#956;m. <br /> <br /> <br /> The result of spectral map measurement of torsional vibration does not show any correlation with the result of measurement of lateral vibration and sound, while the spectral map of lateral vibration and sound due to gear mesh contact showed similarity. The results of measurement of lateral vibration and sound in the second condition showed an increase of vibration level, while the level of torsional vibration in the second condition tend to be lower.