STUDI PENGARUH PENGGUNAAN JUMLAH SENSOR PADA LOW BANDWIDTH ACTIVE SUSPENSION DENGAN KONTROL LQG

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%. "=============================================================================================" 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_Programmable controllers
Divisions: Faculty of Industrial Technology > Mechanical Engineering > (S1) Undergraduate Theses
Depositing User: Mrs Ansi Aflacha
Date Deposited: 05 Jan 2017 04:13
Last Modified: 05 Jan 2017 04:13
URI: http://repository.its.ac.id/id/eprint/1318

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