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Work Project Report Guideline

1. Composition of Report

1.1. Cover 

1.2. Table of Content

1.3. Chapter I (Basis of Theory)1.3.1 Introduction

Vibration is a continuous random or periodic motion of an object or transient “impact”event of short time duration. Caused by either a man-made, natural ecitation of astructuren and mechanical faults. Vibration is a pulsatin! motion of a machine or a machinepart from its ori!inal place of rest. Vibration is the response of a system to some internal oreternal stimulus or force applied to the system. Vibration has three important parameters"hich can be measured - #mplitude $ho" much%& 're(uency $ho" many times per minute or per second%& and )hase

*ote that a vibration transducer is mounted on $or as near as possible to% the bearin!housin!. +his transducer "ill sense the vibration and pass the si!nal throu!h a connectin!cable to an analyer. 'i!ure 1 sho"s that the machines bearin! housin! can be modeled by

a masssuspend ed by a coil sprin!. ntil a force $stimulus% is applied to this mass, it "illremain suspended in a neutral or unstimulated position. /hen a force is applied to the mass$i.e., in an up"ard direction in this case% as sho"n in 'i!ure 0, the mass moves up"ard andthe sprin! compresses $stimulated% by the force.

Figure 1#22 I* *+4#5 )62I+I6* /I+7 *6 #))5I8 '64C

'i!ure 0#22 9I*: 2+I5#+8 9; #* #))5I8 '64C

6nce an upper limit of motion is reached the force is removed and the mass be!ins todrop. +he mass "ill drop throu!h the neutral position and continue to travel to its lo"er limitas sho"n in 'i!ure 3.

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'i!ure 3#22 42)6*8I*: +6 +7 45#2 6' +7 #))5I8 '64C

6nce the lo"er limit is reached, the mass "ill stop its do"n"ards motion and reverse

direction a!ain passin! throu!h the neutral position to the upper limit& then stop and returnto the lo"er limit repetitively as lon! as an eternal force is applied as sho"n in 'i!ure <.

'i!ure <C6*+I*8 42)6*2 +6 #))5I8 '64C

If a pen "ere attached to the mass as it repetitively responds to the applied force and astrip chart recorder placed nearby, the vibration response could be documented as sho"n in'i!ure =.

'i!ure =)* #888 +6 #22 +6 +4#C I+2 62CI55#+I*: 6+I6* 6* #C6*2+#*+ 2)8 2+4I) C7#4+ 4C6484

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1.3.0 Vibration fre(uency

1.4. Chapter II(Preliminary)

•

Description

 #n effective )redictive aintenance )ro!ram $))% is a total pro!ram of the follo"in!>

1. 8+C+I6*0. #*#5;2I23. C644C+I6*<. V4I'IC#+I6*

+his is a lo!ical se(uence of steps. +he pro!ram first helps you detect the onset of aproblem. It then provides means for analyin! the problem in order to determine itscause. It puts you in a position to correct the problem, effectively and efficiently, at aconvenient time. #nd finally, it !ives you a means to verify that any correction ta?en did in

fact correct the problem and that no other problems "ere included. )redictiveaintenance uses the process of trac?in! vibration levels on e(uipment components todetermine the condition of the machinery.)redictive aintenance )ro!rams be!in "ith 9aseline $or initial% surveys of machines.5ater, follo"up surveys are conducted at periodic intervals dependent on machine type,criticality, operatin! and maintenance cost, operatin! speed and desi!n of components"ithin such as bearin! type, !earin! type, etc. 'ollo"in! either 9aseline or 'ollo"up)eriodic 2urvey measurements, an analysis of collected data is made and "ritten surveyreports are compiled summariin! dia!nostic results as "ell as providin! overallrecommendations such as those "hich follo">1% *o )roblem 'ound.0% inor )roblems 'ound3% )otentially 2erious )roblems 8etected /hich i!ht +end to 8eteriorate /ithin /ee?s

Continue to onitor (uipment at 2horter Intervals.<% )otentially 2erious )roblems 8etected, but )roblem 2ource *ot ;et Confirmed

)erform Vibration 8ia!nostics to 8etermine )roblem 2ource and 2everity.=% 2i!nificant )roblem$s% 8etected /hich /arrant Corrective #ction - 4eplace )arts

at *et 2cheduled 2hutdo"n.@% Very 2evere )roblem$s% 8etected /hich andate Corrective #ction - 2hut 8o"n

and 4eplace Immediately.

• Prpose1. +he purpose of this trainin! is to provide instruction on ho" vibration si!nature analysis

can be used to continually evaluate machine condition "ithin a )redictive aintenance

)ro!ram.0. +o teach the trainer ho" to be!in ma?in! these dia!nostic calls usin! vibration si!nature

analysis A ho" to evaluate problems severities and "hat thou!ht process should be used

to either recomeneded further dia!nostic test or ho" to !o ahead and recomended "hat

corrective action should be made in "hich chronolo!ical order.

3. +he user "ill have a !ood "or?in! ?no"led!e of the proper application instrumentationand soft"are necessary for settin! up of and implementin! an effective predictivemaintenance pro!ram as "ell as receive instruction on basic concepts involved introubleshootin! vibration problems

• !cope of "or# 

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• Problem or isses at "or# 

1.$. Chapter II (Pro%ect Content)• Detaile& e'planation of problems or isses

• Problem or isses &ata an& analysis

• ction have been ta#en to solve problem or isses

1.. Chapter III (!mmary)

• !mmary

• !**estion for ne't plan

1.+. ttachment

• ,efference

• Data

• ,elevant -/ manal

• PID &ia*ram

• Photo*raph

• etc

2. Report Format

• /icrosoft 0or& file

• /inimm nmber of pa*es 1

• Theme font Times e" ,oman

• ont si5e 12

•

!pace 161$ cm• /ar*in

7 Top 26$4 cm

7 8eft 26$4 cm

7 ,i*ht 26$4 cm

7 Bottom 26$4 cm