Mahendradewi, Putri Amarilli (2014) Simulasi Peredaman Getaran Mekanis Mesin Sentrifugal Dengan Sistem Dual Dynamic Vibration Absorber (DUAL DVA). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Getaran yang dihasilkan mesin sentrifugal merupakan akibat
dari adanya gangguan yang terjadi pada mesin dimana getaran yang
terjadi dapat merambat sehingga menyebabkan kerusakan pada struktur
mesin sentrifugal. Telah dilakukan penelitian mengenai simulasi
peredaman getaran mekanis mesin sentrifugal mengenai penentuan
nilai parameter Dual Dynamic Vibration Absorber (Dual DVA) yang
terbaik untuk mereduksi getaran yang terjadi serta penentuan respon
perpindahan (displacement). Pendekatan analisis penentuan parameter
yang digunakan adalah metode state space sebagai fungsi ruang
keadaan sebagai pemodelan secara matematis dengan penentuan nilai
parameter massa, pegas dan damper menggunakan tehnik trial and
errorsebagai perbandingan peredaman terbaik sistem Single DVA dan
Dual DVA. Nilai pegas dan damper sistem utama telah ditetapkan
sebesarr 35.000 N/m dan 2700 N.s/m (Yudhikarisma,2013). Sehingga
hasil simulasi perbandingan respon perpindahan (displacement) mesin
sentrifugal menggunakan Single DVA yang terbaik adalah dengan
penggunaan massa (M1) 783,845 kg, pegas (K1) 125.000 N/m, dan
damper (C1) 2500 N.s/m yang mampu meredam amplitudo dari respon
perpindahan (displacement) hingga 30,16%. Sedangkan peredaman
menggunakan Sistem Dual DVA adalah dengan penggunaan massa
(M21=M22) 391,923 kg, pegas K21 dan K22 65.000 N/m, damper C21 1250
N.s/m, serta damper C22 750 N.s/m yang mampu meredam amplitudo
dari respon perpindahan (displacement) hingga 30,96%.
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Vibration generated centrifugal machine is the result of a
disturbance that occurred on the machine where the vibration that
occurs can propagate causing structural damage to the centrifuges. Has
conducted research on the simulation of mechanical vibration damping
centrifuges regarding the determination of the value of the parameter
Dynamic Vibration Absorber Dual (Dual DVA) is the best to reduce the
vibrations that occur as well as the determination of the displacement
response (displacement). Approach to the determination of the
parameters of analysis is the method of state space as a function of the
state space as mathematical modeling to determine the parameter
values of mass, spring and damper using the technique of trial and
comparison errorsebagai best damping system and Dual Single DVA
DVA. Value of the spring and damper system has been established
primary sebesarr 35,000 N / m and 2700 Ns / m (Yudhikarisma, 2013).
So that the displacement response comparison of the simulation results
(displacement) using a centrifugal machine Single DVA is best to use
the mass (M1) 783.845 kg, spring (K1) 125,000 N / m, and the damper
(C1) 2500 Ns / m are able to reduce the amplitude of the response
displacement (displacement) up to 30,16%. While DVA damping using
Dual System is the use of the mass (M21 = M22) 391.923 kg, spring K21
and K22 spring 87,500 N / m, C21 damper 1250 Ns / m, and C22 damper
750 Ns / m are able to reduce the amplitude of the response
displacement to 30,96%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 629.243 Mah s |
| Uncontrolled Keywords: | Mesin Sentrifugal, State Space, Dual DVA |
| Subjects: | T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Users 13 not found. |
| Date Deposited: | 16 Aug 2017 03:42 |
| Last Modified: | 16 Aug 2017 03:42 |
| URI: | http://repository.its.ac.id/id/eprint/48611 |
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