Relationships between out of balance and misalignment and their vibration characteristics

Chua, Chee Siang. (2004) Relationships between out of balance and misalignment and their vibration characteristics. [Final Year Project Report] (Unpublished)

	PDF Chua Chee Siang.pdf Download (1MB)
	PDF (Please get the password by email to repository@unimas.my , or call ext: 3914 / 3942 / 3933) Chua Chee Siang - full.pdf Restricted to Registered users only Download (129MB)

Abstract

Majority of the machinery in industries nowadays consists of rotating or moving components. Any fault in this rotary component may lead to adverse vibration and thus the smooth running of the system. However, each type of machinery fault exhibits a characteristic vibration signature which is uniquely its own. The signal is the sum total of the design, manufacture, application, and wear of each of its components. Unbalance normally generates 1x rotating speed (RPM) dominant vibration in vibration spectrum, due to the cyclic excitation force that encounter each time the machine makes a full revolution. On the other hand, 2x RPM dominant vibration will normally presented in vibration spectrum for misalignment problem, where each of the two shaft causing a cyclic excitation forces. Phase relationship between inboard and outboard bearing across coupling, will be the easiest way to differentiate the above 2 mechanical defect, as misalignment normally will also generate high vibration at 1x RPM.

Actions (For repository members only: login required)

View Item