Muchdor, Maulana Hanif Labiib (2020) Analisis Perbandingan Torsional Stiffness Antara Metode Simple Structural Surface (SSS) Dengan Metode Simulasi 3D Pada Mobil Flood Rescue Vehicle (FRV). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kendaraan atau mobil Flood Rescue Vehicle (FRV)
merupakan salah satu terobosan yang membantu dalam proses
evakuasi korban bencana, terutama banjir. Perancangan sebuah
mobil FRV juga harus menjadi hal yang harus diperhatikan karena
akan berdampak pada penggunaan mobil FRV. Kekakuan struktur
menjadi salah satu faktor utama dalam perancangan karena mobil
FRV dihadapkan dengan medan yang berat.
Uji kekakuan torsional dilakukan dengan variasi beban
mempertimbangkan berat dari mobil FRV. Uji kekakuan torsional
dengan metode Simple Structural Surface (SSS) dan simulasi 3D
bisa digunakan untuk mengetahui torsional stiffness dari mobil
FRV. Untuk pemodelan SSS menggunakan penyederhaan struktur
mobil menjadi beberapa panel yang dimana bisa mempermudah
konsep dasar dalam pengembangan lanjutan terkait kekakuan
struktur mobil FRV. Setelah itu dilakukan perhitungan secara
analitis untuk mengetahui gaya yang bekerja pada tiap panel yang
digunakan untuk mencari torsional stiffness mobil FRV. Untuk
simulasi 3D dengan Finite Element Method (FEM) dilakukan
dengan bantuan software ANSYS Workbench dan dipecah menjadi
model Beam – based Model of Entire vehicle Cabin (BMEC) danx
Coupled-beam Surface Model (CBSM). Dilakukan uji konvergensi
terlebih dahulu untuk menentukan ukuran meshing yang tepat agar
mencapai nilai yang paling akurat. Output yang diharapkan dari
simulasi adalah defleksi aksial yang dimana dihitung dan
menghasilkan nilai torsional stiffness.
Dari hasil penelitian, didapatkan nilai torsional stiffness
mobil FRV dengan metode Simple Structural Surface (SSS) sebesar
5684.21 N.m/0, untuk metode simulasi 3D dengan BMEC
didapatkan nilai torsional stiffness sebesar 922.08 N.m/0 dan
model CBSM sebesar 13721.7 N.m/0. Dari metode dan model yang
dihitung dan disimulasi, CBSM model mendapat nilai yang paling
mendekati range nilai torsional stiffness mobil tipe SUV pada
umumnya (20.000 - 37.500 N.m/0) karena CBSM model merupakan
model yang paling mendekati objek sesungguhnya. Dari segi
langkah pengerjaan, metode SSS memiliki delapan langkah
pengerjaan sedangkan pada simulasi 3D memiliki lima langkah
yang dapat disimpulkan bahwa metode SSS memiliki waktu relatif
pengerjaan yang lebih lama dibandingkan dengan metode simulasi
3D
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The Flood Rescue Vehicle (FRV) car is one of the
breakthroughs that helps in the process of evacuating disaster
victims, especially floods. The design of a FRV car must be
considered because it will have an impact on the use of FRV cars.
Structural stiffness is one of the main factors in the design because
FRV cars are faced with tough terrain.
The torsional stiffness test is carried out by varying the
load considering the weight of the FRV car. The torsional stiffness
test using the Simple Structural Surface (SSS) method and 3D
simulation can be used to determine the torsional stiffness of the
FRV car. SSS modeling uses simplification of the car structure into
several panels which can simplify the basic concept in further
development related to the structural stiffness of FRV cars. After
that, an analytical calculation is performed to determine the force
acting on each panel used to find the torsional stiffness of the FRV
car. For 3D simulations with the Finite Element Method (FEM), it
is carried out with the help of ANSYS Workbench software and
broken down into a Beam-based Model of Entire Vehicle Cabin
(BMEC) and Coupled-beam Surface Model (CBSM). The
convergence test is performed first to determine the correct
meshing size in order to achieve the most accurate value. Thexii
expected output of the simulation is a axial deflection which is
calculated and produces a torsional stiffness value.
From the research results, the torsional stiffness value of
the FRV car with the Simple Structural Surface (SSS) method is
5684.21 N.m /0, for the 3D simulation method with BMEC the
torsional stiffness value is 922.08 N.m /0 and the CBSM model is
13721.7 N.m /0. From the calculated and simulated methods and
models, the CBSM model gets the closest value to the range of
torsional stiffness values for SUV-type cars in general (20,000 -
37,500 N.m /0) because the CBSM model is the closest to the actual
object. In terms of working steps, the SSS method has eight
processing steps while in 3D simulation it has five steps. It can be
concluded that the SSS method has a relatively longer processing
time than the 3D simulation method
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | FRV, SSS, FEM, BMEC, CBSM, Torsional Stiffness, defleksi, FRV, SSS, FEM, BMEC, CBSM, Torsional Stiffness, deflection |
| Subjects: | T Technology > T Technology (General) > T57.62 Simulation T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL257.5 Automobiles--Shock absorbers--Design and construction. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Maulana Hanif Labiib Muchdor |
| Date Deposited: | 21 Aug 2020 08:34 |
| Last Modified: | 03 Jul 2023 07:34 |
| URI: | http://repository.its.ac.id/id/eprint/80323 |
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