studi eksperimental karakteristik model regenerative shock...
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Sidang Tugas Akhir Bidang Studi Desain
STUDI EKSPERIMENTAL KARAKTERISTIK MODEL
REGENERATIVE SHOCK ABSORBER (RSA) UNTUK
KENDARAAN TEMPUR RODA RANTAI -Senin, 16 Juli 2012-
MOHAMMAD CHOLIQ
2108 100 058
Pembimbing :
Dr. Eng. Harus Laksana Guntur, ST, M.Eng
JURUSAN TEKNIK MESIN Fakultas Teknologi Industri Institut Teknologi Sepuluh Nopember Surabaya
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• Pendahuluan
• Tinjauan Pustaka
• Metodologi
• Hasil Dan Analisa
• Kesimpulan Dan Saran
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Latar Belakang
KEBUTUHAN ENERGI
LISTRIK PADA
KENDARAAN MILITER
Konsumsi BBM Meningkat
VIBRATION ENERGY HARVESTING
ALTERNATOR
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Perumusan Masalah
• Bagaimana respon massa uji dan daya bangkitan yang dihasilkan dengan eksitasi impuls akibat variasi amplitudo.
Bagaimana Karakteristik Daya Bangkitan Akibat
Pengaruh Perubahan Massa Uji Eksitasi Harmonik
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BATASAN MASALAH
• Kendaraan yang digunakan hanya tank /
Kendaraan tempur roda rantai
• Berat kendaraan pada satu sisi roda adalah W/14
• Eksitasi yang digunakan adalah yang ada pada alat uji
suspensi/ Suspension Test Rig
• Frekuensi yang digunakan terbatas antara
2 – 5 Hz.
• Eksitasi pada suspension test rig mewakili
eksitasi pada kondisi sebenarnya.
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Tujuan Penelitian
• Menguji energi listrik bangkitan dari RSA dan
respon massa uji setelah pemasangan RSA akibat
beban impulsive dan harmonik pada amplitudo dan
frekuensi yang bervariasi.
• Menganalisa energi listrik bangkitan dari RSA dan
respon massa uji setelah pemasangan RSA akibat
beban impulsive dan harmonik pada amplitudo dan
frekuensi yang bervariasi.
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• Pendahuluan
• Tinjauan Pustaka
• Metodologi
• Hasil Dan Analisa
• Kesimpulan Dan Saran
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Tinjauan Terdahulu
Electromagnetic Regenerative Shock Absorber
Professor Lei Zuo dari University of Stony
Brook, New York Brook
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menggunakan prinsip aliran cairan hidrolik
sistem hidraulik memaksa cairan untuk mengalir melalui
turbin yang dihubungkan dengan generator
generator
Hydraulic Regenerative Shock Absorber
Zack Anderson dari MIT
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Piezoelectric Regenerative Shock Absorber
Marcos Arziti
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Electromagnetic Suspension
Bart L.J. Gysen
–Eindhoven University Of Technology-
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Tugas Akhir
P-VERS generasi 1 (Indra)
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Tugas Akhir
P-VERS generasi 2 (Wahyu hendrawan)
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Regenerative shock absorber
model rotational jaw
RSA
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Leopard-1 MBT
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`
Suspensi Pada Tank
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𝑚ẍ + 𝑐 ẋ − ẏ + 𝑘 𝑥 − 𝑦 = 0
Dengan y(t)= sin ωt, maka
𝑚ẍ + 𝑐ẋ + 𝑘𝑥 = 𝑘𝑦 + 𝑐ẏ = 𝑘𝑌 𝑠𝑖𝑛𝜔𝑡 + 𝑐𝜔𝑌𝑐𝑜𝑠𝜔𝑡 = 𝐴𝑠𝑖𝑛 𝜔𝑡 − 𝛼
Dari persamaan itu, maka akan diperoleh
𝑋𝑝 𝑡 =𝑌 𝑘2 + (𝑐𝜔)2
[ 𝑘 − 𝑚𝜔2 2 + 𝑐𝜔 2]12 sin 𝜔𝑡 − 𝜙1 − 𝛼
+x
t
y(t)=Ysinωt
ωt
+y
k(x - y) c(ẋ - ẏ)
+x
+ẍ
Motion of Base
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• Pendahuluan
• Tinjauan Pustaka
• Metodologi
• Hasil Dan Analisa
• Kesimpulan Dan Saran
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Flow Chart
umum
Uji Karakteristik Pegas
Instalasi RSA Pada Kendaraan
Pengujian performa suspensi dengan RSA dan pengukuran daya bangkitan RSA
Pengolahan Data Pengujian
kesimpulan
END
Analisa dan Hasil
start
Studi Literatur
Survey Alat Uji
Uji Karakteristik generator
Pencarian C RSA
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START
1.Power DC Supply
2.DCmotor
3.Titik timbul
4.Generator
5.Multimeter
6. Digital Tachometer
Mengarahkan tachometer pada titik
timbul untuk mengetahui RPM
Menyalakan DC suplay
Menambah input DC
motor 3 volt
1.Mencatat voltase dan ampere
pada multitester
2.Mencatat RPM yang timbul di
tachometer
Menyetel input 3 volt
Input
30V
START
Voltase, Arus
dan RPM
generator
Flow Chart uji
karakteristik
generator
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6
1 2 3 4 5
Model Pengambilan Data
karakteristik generator
1. Power DC Supply
2. DC Motor
3. Titik Timbul
4. DC Generator
5. Multimeter
6. Digital Tachometer
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Flow Chart Penentuan Koefisien
Redaman RSA (c-RSA)
START
1. RSA
2. Beban
3. Stopwatch
4. Generator
RSA tanpa
Generator
RSA Dengan
Generator
Menghitung waktu
tempuh dari satu
tanda ke tanda
lain
10 kali
percobaan
Menghitung waktu
tempuh dari satu
tanda ke tanda
lain
10 kali
percobaan
Beban + 75 gBeban + 50 gr
C= mg/v
CRSA dengan
generator;
CRSA tanpa generator
ENDBeban=0.98
kg?Beban = 1 kg?
Memposisikan tuas RSA di posisi
paling atasmembentuk sudut 400
dari vertikal
Ujung tuas
dibebani 0.85 kg
Ujung tuas
dibebani 0.85 kg
Memposisikan tuas RSA di posisi
paling atasmembentuk sudut 400
dari vertikal
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𝑠 = 𝑟θ
θ = 95° − 45° = 50°
θ =50
180°𝑥π 𝑟𝑎𝑑 = 0,278π 𝑟𝑎𝑑
sehingga, s= 0.2 m x 0,278π
= 0.192 m
Model Pengujian
Karakteristik RSA
400
950
posisi awal posisi akhir
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Flow Chart Uji
Karakteristik Spring
START
1. spring alat
2. massa uji
3. jangka sorong
Memasang spring RSA pada
alat Suspension Tester Rig
Memberikan massa uji 5
kg pada spring RSA
Mencatat perubahan panjang spring
(∆x)
Massa uji = 20 kg?
Massa uji + 5 kg
1. Grafik F-∆x
2. Nilai koefisien spring (N/m)
END
5 kali pengujian
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Instalasi RSA Pada
Alat Uji Suspension
Tester Rig
Beban
x
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Mekanisme Pengujian RSA START
1. RSA
2. Suspension Tester Rig
3. Stopwatch
4. Resistor
5. Osiloscope
6. Massa uji
Eksitasi impuls
Eksitasi harmonik
A = 7.5 mm
Memberikan eksitasi impuls
Mencatat arus
bangkitan pada
multimeter
A = 12.5 mm?
A+ 5 mm
ζ=0.17
Massa uji
ekivalen
Mengatur
kecepatan
v=100 mm/s
Mencatat arus
bangkitan
END
Memberikan
eksitasi
A=7.5 mm
V≥111 mm/s
A=12.5 mm
V=125 mm/s
A+ 5 mm
V+ 11
mm/s
V+ 14
mm/s
ζ=0.21
Massa uji
ekivalen
Mengatur
kecepatan
v=100 mm/s
Mencatat arus
bangkitan
Memberikan
eksitasi
A=7.5 mm
V=111 mm/s
A=12.5 mm
V=125 mm/s
A+ 5 mm
V+ 11
mm/s
V+ 14
mm/s
END
1. Analisa daya
bangkitan
2. Analisa terhadap
respon massa uji
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Suspension tester rig
Stop Watch
Oscilloscope
Resistor
RSA
Flas Drive
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• Pendahuluan
• Tinjauan Pustaka
• Metodologi
• Hasil Dan Analisa
• Kesimpulan Dan Saran
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Hasil Pengujian
Karakteristik Generator
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0
2
4
6
8
10
12
14
0 200 400 600 800 1000 1200 1400
vo
ltase
rpm generator
Grafik Voltase-Putaran
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Hasil Pengujian
Karakteristik RSA
m uji
(kg)
F
(N)
t rata-rata
(second)
s
(meter)
v
(m/s)
0.85 8.3385 3.642 0.192 0.053
0.89 8.7309 3.290 0.192 0.058
0.93 9.1233 2.983 0.192 0.064
m uji
(kg)
F
(N)
t rata-rata
(second)
s
(meter)
v
(m/s)
0.85
8.33
85 3.642 0.19188 0.0466776
0.925
9.07
425 3.142 0.19188 0.0541057
1 9.81 2.787 0.19188 0.0609975
Hasil Pengambilan
Data dengan
Generator
Hasil Pengambilan
Data tanpa
Generator
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Hasil Pengujian
Karakteristik RSA
Grafik Pengambilan
Data dengan
Generator
Grafik Pengambilan
Data tanpa
Generator
y = 20.086x + 7.1354
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9
9.1
9.2
0 0.2 0.4 0.6 0.8 1 1.2
F (
N)
v (m/s)
Grafik F - V tanpa Generator
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Hasil Pengujian
Karakteristik Pegas
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Hasil Pengujian
Karakteristik Pegas
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0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.50
0.05
0.1
0.15
0.2
0.25
Time (s)
Voltage
z=0.17
z=0.21
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5-0.01
0
0.01
0.02
0.03
0.04
0.05
Time (s)
Pow
er
(Watt
)
z=0.17
z=0.21
Amplitudo 7.5 mm
ζ= 0.21 ζ= 0.17
1 1.05 1.1 1.155-
0
5
10
15
20
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.05 1.1 1.15 1.2 1.25 1.3 1.357-
6-
5-
4-
3-
2-
1-
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
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0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.50
0.05
0.1
0.15
0.2
0.25
Time (s)
Voltage
z=0.17
z=0.21
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5-0.01
0
0.01
0.02
0.03
0.04
0.05
Time (s)
Pow
er
(Watt
)
z=0.17
z=0.21
Amplitudo 12.5 mm
ζ= 0.21 ζ= 0.17
1 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.410-
5-
0
5
10-
5-
0
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.40
5
10
15
20
0
5
10
15
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
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Eksitasi Harmonik
![Page 40: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/40.jpg)
Amplitudo 7.5 mm & Frekuensi 3.3 Hz
ζ= 0.17 ζ= 0.21
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 30
0.05
0.1
0.15
Time (s)
voltage
z=0.21
z=0.17
0 0.5 1 1.5 2 2.5 30
0.005
0.01
0.015
0.02
0.025
Time (s)
Pow
er
(Watt
)
z=0.21
z=0.17
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3-10
-5
0
5
10
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.5 2 2.5 3-5
0
5
10
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
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Amplitudo 7.5 mm & Frekuensi 3.7 Hz
ζ= 0.17 ζ= 0.21
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 30
0.05
0.1
0.15
0.2
0.25
0.3
0.35
Time (s)
voltage
z=0.21
z=0.17
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 30
0.05
0.1
0.15
0.2
Time (s)
Pow
er
(Watt
)
z=0.21
z=0.17
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3-8
-6
-4
-2
0
2
4
6
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.5 2 2.5 3
-15
-10
-5
0
5
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
![Page 42: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/42.jpg)
Amplitudo 7.5 mm & Frekuensi 4.17 Hz
ζ= 0.17 ζ= 0.21
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 30
0.05
0.1
0.15
0.2
0.25
0.3
0.35
Time (s)
Voltage
z=0.21
z=0.17
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 30
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
Time (s)
Pow
er
(Watt
)
z=0.17
z=0.21
1 1.5 2 2.5 3-5
0
5
10
15
20
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.5 2 2.5 3-20
-15
-10
-5
0
5
10
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
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Amplitudo 12.5 mm & Frekuensi 2.0 Hz
ζ= 0.17 ζ= 0.21
1 1.5 2 2.5 3 3.5 40
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
Time (s)
Voltage
z=0.21
z=0.17
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 30
0.005
0.01
0.015
0.02
0.025
0.03
0.035
0.04
Time (s)
Pow
er
(Watt
)
z=0.21
z=0.17
1 1.5 2 2.5 3
-4
-2
0
2
4
6
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.5 2 2.5 3-14
-12
-10
-8
-6
-4
-2
0
2
4
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
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Amplitudo 12.5 mm & Frekuensi 2.22 Hz
ζ= 0.17 ζ= 0.21
0 0.5 1 1.5 2 2.5 30
0.05
0.1
0.15
0.2
Time (s)
Voltage
z=0.21
z=0.17
0 0.5 1 1.5 2 2.5 30
0.01
0.02
0.03
0.04
0.05
Time (s)
Pow
er
(Watt
)
z=0.21
z=0.17
1 1.5 2 2.5 3-6
-4
-2
0
2
4
6
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.5 2 2.5 3 1 1.5 2 2.5 3 1-10
-5
0
5
10
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
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Amplitudo 12.5 mm & Frekuensi 2.5 Hz
ζ= 0.17 ζ= 0.21
0 0.5 1 1.5 2 2.5 30
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
Time (s)
Voltage
z=0.21
z=0.17
0 0.5 1 1.5 2 2.5 30
0.01
0.02
0.03
0.04
0.05
0.06
Time (s)
Pow
er
(Watt
)
z=0.21
z=0.17
1 1.5 2 2.5 3 3.5 4-20
-15
-10
-5
0
5
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
1 1.5 2 2.5 3 3.5 4-20
-15
-10
-5
0
5
Time (s)
a (
m/s
2)
unsprung mass
sprung mass
![Page 46: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/46.jpg)
Hasil Pengujian
dengan Eksitasi
Harmonik
Hasil Pengujian
dengan Eksitasi
Impuls
Tabel Hasil Pengujian
![Page 47: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/47.jpg)
Eksitasi
Harmonik
Eksitasi
Impuls
Potensi Energi
![Page 48: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/48.jpg)
Karakteristik daya pada
Pengujian dengan eksitasi
Harmonik
Amplitudo 7.5 mm
Amplitudo 12.5 mm
![Page 49: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/49.jpg)
• Pendahuluan
• Tinjauan Pustaka
• Metodologi
• Hasil Dan Analisa
• Kesimpulan Dan Saran
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KESIMPULAN
1. Redaman yang dihasilkan oleh alat adalah sebesar 126.35 (Ns/m)
2. Dari pengujian karakteristik model RSA dengan eksitasi impuls
didapatkan:
3. Dari pengujian karakteristik model RSA dengan eksitasi harmonik
didapatkan:
4. Pada eksitasi impuls didapatkan power maksimal 0.1183 Watt.
5. Pada eksitasi harmonik didapatkan power maksimal 0.0865 Watt
6. Voltase maksimum sebesar 0.17144 Volt dan Arus maksimum
sebesar 0.69 Ampere.
![Page 51: Studi eksperimental karakteristik model regenerative shock ...digilib.its.ac.id/public/ITS-paper-25933-2108100058-Presentation.pdf•Tinjauan Pustaka •Metodologi •Hasil Dan Analisa](https://reader033.vdocuments.site/reader033/viewer/2022052303/5cd30f5e88c993e6198cfbe4/html5/thumbnails/51.jpg)
SARAN
1. Perlunya dilakukan pengujian dengan amplitudo yang lebih
besar.
2. Perlunya pengujian dengan variasi frekuensi yang sama pada
amplitudo yang berbeda.
3. Perlunya dibuatkan dan dikembangkan rangkaian elektronik
yang bisa menstabilkan voltase yang dibangkitkan agar bisa
dimanfaatkan
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Daftar Pustaka
1. Zuo, Lei dkk. 2010. Design And Characterization Of An Electromagnetic Energy Harvester For Vehicle Suspension. New York State University, USA.
2. Arziti, Marcos. 2010. Harvesting Energy From Vehicle Suspension. Tempere University of Technology. Spanyol
3. Kelly, S Graham 2000. Fundamental of Mechanical Vibrations. McGraw-Hill International Editions.: Ohio, USA
4. Seongpil Ryu. 2011. Ride quality analysis of a tracked vehicle suspension with a preview control. Department of Mechanical Engineering, Korea Advanced Institute of Science andTechnology (KAIST), Science Town, Daejeon 305-701, South Korea
5. Guenter H. Hohl.2006. Military terrain vehicles. Austrian Society of Automotive Engineers, Elisabethstrasse 26, A-1010 Vienna, Austria.
6. Krylov, V.V. 2010. Calculation of Ground Vibration Spectra From Heavy Military Vehicles. Departement of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, Leicestershire LE113TU, United of Kingdom.
7. S. Rao, Singiresu. 2004 Mechanical Vibration. Prentice Hall PTR. Singapore.
8. Imam Muslim, ST. Studi Eksperimental Karakteristik Regenerative Shock Absorber (RSA) Model Rotational Jaw dan Pengaruhnya Terhadap Road Grip Mobil Perkotaan. Institut Tenologi Sepuluh Nopember, Indonesia.
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Terima kasih atas
perhatiannya