KRISTIADI, STEFANUS RANGGA (2015) STUDI PENGARUH PENGGUNAAN JUMLAH SENSOR PADA LOW BANDWIDTH ACTIVE SUSPENSION DENGAN KONTROL LQG. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perkembangan teknologi dan tingginya permintaan akan
kendaraan yang semakin aman dan nyaman membawa dampak
besar terhadap desain suatu kendaraan, terutama sistem
suspensinya. Penggunaan suspensi pasif yang memiliki nilai
konstanta redaman dan kekakuan pegas tetap dirasa kurang
mampu untuk memenuhi permintaan pasar di masa mendatang
akan peningkatan keamanan dan kenyamanan kendaraan,
khususnya mobil. High Bandwith Active Suspension (HBAS)
telah banyak diteliti guna mengatasi hal ini. Namun konsumsi
energi yang besar seringkali menjadi handicap sistem suspensi
ini. Hingga kemudian tercetuslah gagasan mengenai Low
Bandwith Active Suspension (LBAS) dengan konsumsi energi
yang lebih rendah.
Penelitian mengenai LBAS sudah banyak dilakukan.
Akan tetapi penelitian-penelitian tersebut umumnya dilakukan
dengan menggunakan full state feedback (LQR) sebagai sistem
kontrolnya. Untuk saat ini pengukuran beberapa state sangat sulit
untuk diimplementasikan. Kalaupun bisa, biaya instalasinya
sangat tinggi. Hal inilah yang menjadi salah satu kekurangan
sistem kontrol full state feedback.
Pada Tugas Akhir ini dianalisa performa LBAS dengan
Linear Quadratic Gaussian (LQG) control. Penelitian difokuskan
pada pengaruh jumlah pengukuran yang digunakan terhadap
performa LBAS. Dari penelitian yang telah dilakukan, didapatkan
bahwa Controller dengan tiga pengukuran (kondisi III) mencapai
comfort gain 2,4%, dua pengukuran (kondisi II) mencapai
18,48%, dan tiga pengukuran (konsidi I) mencapai 17,53%.
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The massive development and huge demand of safer and
more comfortable vehicle leads into changes in vehicle design,
especially the suspension system. Passive suspension usage which
has constant damping and spring value is now considered to fail
giving the admired response. High Bandwidth Active Suspension
(HBAS) has been tremendously studied to solve this problem.
However, the power consuption leads into another problem either.
Therefore, Low Bandwidth Active Suspension is studied as the
energy demand is less.
LBAS has been studied before but most of the research
use full state feedback controller in which almost all of the
measurements are impossible to be conducted. If it could, the
installation cost would be astonishingly high.
In this final project, performance of LBAS with LQG
Control is analised. The research is focused on the correlation
between the number of measurements and LBAS performance.
From the research, it is known that controller with one
measurement (case III) achieve 2.4% of comfort gain, two
measurements (case II) achieve 18.48%, and three measurements
(case III) achieve 17.53%
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 629.243 Kri s |
| Uncontrolled Keywords: | Active Suspension, LBAS, output feedback, LQG |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Users 13 not found. |
| Date Deposited: | 05 Jan 2017 04:13 |
| Last Modified: | 24 Aug 2018 03:26 |
| URI: | http://repository.its.ac.id/id/eprint/1318 |
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