Vibration Isolation Of A Rotating Motor

Razali, Muhammad Fitri (2017) Vibration Isolation Of A Rotating Motor. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Vibration isolator is widely used in industrial fields as vibration insulation in rotating machinery. It helps to isolate the vibration of the motor from spreading to other places. Many studies have been conducted on vibration isolators. Most of the research is isolating the vibration signals in one direction either vertical direction or horizontal direction only. The study in multi-direction vibration isolation is still lacking. The purpose of this project is to study the characteristic of vibration isolator. In addition, to investigate the performance of vibration isolator and its operating deflection shape (ODS). There are a number of experiments were conducted to compare the transmissibility of two different types of vibration isolator. An experiment was conducted by using a frame; a rotating motor and some attachment of unbalance mass of the rotor. First, the experiment begun to measure the transmissibility at the frame and motor only, Then continued to frame, motor and rotor only. Next, it was continued to frame, motor, rotor and addition of unbalance mass. The present of unbalance mass actually is to produce vibrations in the system. Then, two types of vibration isolator are installed between the motor and the frame and the performance of both vibration isolator was tested. The movement of operating deflection shape (ODS) while studying the two types of vibration isolator was viewed and compared. The ODS was taken when the system is in resonance state. So that, the performance of both vibration isolator can be visualised either it is performed in a single direction or multi direction. Based on the experiment, it shows that both vibration isolator was isolated the vibration well. Besides, it shows that multi-direction type of vibration isolator isolate better than the single direction type of vibration isolator. It was proven in the both experiments either in the transmissibility performance or ODS. The ability of multi-directional vibration isolation can help reduce vibration from spreading to other places. Vibration generated from the defect machine should be isolated so that the vibrations do not cause damage.

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