Surur, Misbachus (2024) Perancangan Bracket Suspensi Per Daun Belakang pada Bus Listrik Medium Low Floor Chassis Monocoque dengan Variasi Ketebalan dan Metode Sambungan Menggunakan Analisis Elemen Hingga. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Suspensi merupakan komponen penting pada kendaraan karena berperan penting dalam menjaga kestabilan dan kenyamanan ketika berkendara. Pada suspensi per daun yang akan dipasang pada kaki-kaki belakang Bus Listrik Medium Low Floor Chassis Monocoque mengalami permasalahan yaitu ketiadaan bracket anting depan per daun di pasaran yang fit dengan support chassis sehingga harus dilakukan custom untuk disesuaikan agar dapat disambungkan pada chassis. Maka dari itu, perlu dilakukan perancangan dan analisis bracket melalui simulasi dengan berbagai macam variasi, yaitu variasi metode sambungan dan variasi ketebalan material yang digunakan untuk pembuatan bracket. Kedua variasi yaitu variasi sambungan yang menggunakan sambungan baut dan sambungan las serta ketebalan material yang digunakan yaitu 5 mm, 6 mm, dan 7 mm. Kriteria desain sebagai acuan dalam melakukan perancangan yaitu hasil simulasi dengan luaran massa yang tidak terlalu berat, faktor keamanan sesuai batas aman, cycle kelelahan yang dinyatakan aman, serta tegangan yang tidak melebihi tegangan ijin. Metode yang dilakukan pada penlitian ini yaitu dengan simulasi struktur statis menggunakan software ANSYS. Bracket dengan sambungan las dan ketebalan material 5 mm yang memiliki nilai tegangan Von Mises sebesar 49,32 MPa , nilai faktor keamanan sebesar 5,069, nilai fatigue life cycle sebesar satu juta siklus, dan nilai fatigue safety factor sebesar 1,748, serta massa sebesar 1,635 kg. Dari nilai-nilai parameter tersebut, maka bracket dengan sambungan las dan ketebalan material 5 mm adalah variasi bracket yang paling optimal.
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Suspension is an important component in vehicles because it plays an important role in maintaining stability and comfort when driving. In the per leaf suspension that will be installed on the rear legs of the Electric Bus Medium Low Floor Chassis Monocoque, there is a problem, namely the absence of a per leaf front earring bracket on the market that fits the chassis support so that it must be customized to be connected to the chassis. Therefore, it is necessary to design and analyze the bracket through simulations with various variations, namely variations in the connection method and variations in the thickness of the material used for making the bracket. The two variations are connection variations that use bolt connections and welding connections and the material thicknesses used are 5 mm, 6 mm, and 7 mm. Design criteria as a reference in designing are simulation results with output masses that are not too heavy, safety factors according to safe limits, fatigue cycles that are declared safe, and stresses that do not exceed the allowable stress. The method used in this research is static structural simulation using ANSYS software. Bracket with welded joints and material thickness of 5 mm which has a Von Mises stress value of 49.32 MPa, a safety factor value of 5.069, a fatigue life cycle value of one million cycles, and a fatigue safety factor value of 1.748, and a mass of 1.635 kg. From these parameter values, the bracket with a welded connection and a material thickness of 5 mm is the most optimal bracket variation.
| Item Type: | Thesis (Diploma) |
|---|---|
| Uncontrolled Keywords: | Bracket, Sambungan Baut, Sambungan Las, Simulasi Statis.Bracket, Bolt Joint, Weld Joint, Static Structure Simulation. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA492.W4 Welded joints T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL257 Springs and suspension T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL671.6. Materials--Fatigue. |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Misbachus Surur |
| Date Deposited: | 03 Aug 2024 08:02 |
| Last Modified: | 03 Aug 2024 08:02 |
| URI: | http://repository.its.ac.id/id/eprint/111842 |
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