analysis report nilgesz arnold

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UNIVERSITY OF ORADEA

FACULTY OF MANAGEMENT AND TECHNOLOGICAL

ENGINEERING

PROGRAM OF STUDY

ADVANCED MECHATRONICS SYSTEMS

Analysis Report

DISCIPLINE

DIAGNOSIS AND MAINTENANCE

OF MECHATRONICS SYSTEMS

Corse !ol"er

Prof.PhD.Eng. Pater Sorin

StudentEng. Nilgesz Arnold

2016


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Ta#le o$ Contents1. Introduction............................................................................................................ 2

2.Transission !ithout defects.................................................................................."

". Defecti#e gear....................................................................................................... $

%. Defecti#e &inion................................................................................................ 11

'. Defecti#e &inion and gear.................................................................................... 1'

6. (onclusion............................................................................................................ 1)

$.*eferences............................................................................................................. 20

1


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%& Intro"'tion

The &ur&ose of this re&ort is to anal+ze a gear s+ste !ith the hel& of #i,roacoustic

anal+sis- the easureents !ere ade !ith the hel& of a &iezoelectric #i,ration

transducer and there ha#e ,een % dierent t+&e of easureents ,ased on the

state of the s+ste/

Noral state

Defecti#e gear state

Defecti#e &inion state

Defecti#e &inion and gear state

The anal+sis !as ade !ith the hel& of atla, in !hich ,ased on the initial

easureents !e ha#e generated dierent t+&es of &lots of the s&ectru of the

signal- sce&tru of the signal- also !e ha#e generated the *S- the aiu &ea

to &ea #alue and the aiu &ea #alue.

3ased on this data !e ha#e to anal+ze and indentif+ the eleents !hich

descri,e the defecti#eness of a certain &art.

The anal+sis is ,ased solel+ on co&arison data ,et!een the dierent

defects co&ared to our ,aseline and ,et!een each other.

4ur anal+sis data is fro achine nu,er%.

In order to co&lete this anal+sis !e shall ad the &lots for e#er+ single case of

defecti#eness and dra! our conclusion in the end.

2


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(&Trans)ission *it!ot "e$e'ts

This is our ,aseline !e !ill co&are all other data to this.

"

5igure 1. Piezoelectric transducer signal for transission !ithout defects


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%

5igure 2. Signal s&ectru for transission !ithout defects


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'

5igure ". (e&stru for transission !ithout defects


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6

5igure %. *S- Pea to Pea and Pea #alues for transission !ithout

defects


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+& De$e'ti,e -ear

As !e can see the accelerations in this gra&h are around $ and 7%0 !hich is

10 ties higher then our ,aseline.

$

5igure '. Piezoelectric transducer signal for defecti#e gear.


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A

Also here !e can see the our s&ectru is uch greater in intensit+ on uch !ider

s&ectru co&are to the ,aseline.

8

5igure 6. Signal s&ectru for defecti#e gear


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And as !e can notice our aiu &ea is % higher than the ,aseline and is drifted

in the a&&roiate tie of 0.01 seconds.

)

5igure $. (e&stru for defecti#e gear.


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9ere !e can also see that all of our easured #alues are uch greater than our

,aseline.

10

5igure 8. *S- Pea to Pea and Pea #alues for defecti#e gear.


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.& De$e'ti,e pinion

9ere !e can o,ser#e that although !e don:t ha#e so high &eas !e ha#e uch

ore of the then in the case of the defecti#e gear an uch ore than our

,aseline.

11

5igure ). Piezoelectric transducer signal for defecti#e &inion.


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9ere !e can o,ser#e to higher &eas in the lo!er end of the s&ectru dierent

fro our gear defect and also dierent fro our ,aseline.

12

5igure 10. Signal s&ectru for defecti#e &inion.


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The ce&stru here has a " ties higher &ea then our ,aseline !hich a&&ears

faster than in our gear,o defect at aroound 0.00' seconds.

1"

5igure 11. (e&stru for defecti#e &inion.


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And of course our #alues are still higher than our ,aseline ,ut not as high as the

gear defect.

1%

5igure 12. *S- Pea to Pea and Pea #alues for defecti#e &inion.


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/& De$e'ti,e pinion an" -ear

1'

5igure 1". Piezoelectric transducer signal for defecti#e &inion and gear.

9ere !e can see a co,ination of the t!o defects- a high nu,er of

&eas !ith a high acceleration s !ell.


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16

5igure 1%. Signal s&ectru for defecti#e &inion and gear.

As !e can see there are " a;or &eas in the gra&h and !e can

o,ser#e the higher end of the s&ectru ,eing a ,it taller as !ell. !hich

indicates our dou,le defects.


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1$

5igure 1'. (e&stru for defecti#e &inion and gear.

9ere !e ha#e a cancelation of the #i,rations co&ared to the indi#idual

defects ,ut ne#ertheless !e still ha#e to &eas !hich are higher than

noral


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5igure 16. *S- Pea to Pea and Pea #alues for defecti#e &inion and gear.

And as !e can se our easured #alues are the highest fro all cases

indicating a;or failure of ,oth eleents.


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0& Con'lsion

(ase *S Pea to Pea Pea3aseline no defects 1.0$1' 11.%'68 '.$28%Defecti#e gear 6.12%2 118.)"26 ').%66"Defecti#e &inion %.'818 68.$%0) "%."$0%Defecti#e


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Pea to Pea #alues in the defecti#e gear case are 10 ,igger then ,aseline- in

the defecti#e &inion ' ties and 200 ,igger in the case of defecti#e gear and

&inion. 5or &ea #alues in the defecti#e gear case '10 ties ,igger the ,aseline-

defecti#e Pinion ' ties ,igger and in the defecti#e &inion and gear case 20

ties ,igger.

1&Re$eren'es

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