Analisis Distribusi Kecepatan, Tekanan Dan Temperatur Pada Perancangan Saluran Gas Buang Mobil Desa Dengan Menggunakan Software Solidworks
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ANALISIS DISTRIBUSI KECEPATAN, TEKANAN DAN TEMPERATUR PADA PERANCANGAN SALURAN GAS BUANG MOBIL DESA DENGAN MENGGUNAKAN SOFTWARE SOLIDWORKS Skripsi Diajukan sebagai salah satu persyaratan untuk memperoleh gelar Sarjana Teknik Program Studi Teknik Mesin Oleh Febri Dwi Nugroho NIM 5212414022 TEKNIK MESIN JURUSAN TEKNIK MESIN FAKULTAS TEKNIK UNIVERSITAS NEGERI SEMARANG 2020 PERSETUJUAN PEMBIMBING ii PENGESAHAN iii DAFTAR ISI HALAMAN JUDUL ..................................................................................................... i PERSETUJUAN PEMBIMBING ................................................................................. ii PENGESAHAN ........................................................................................................... iii DAFTAR ISI ................................................................................................................ iv PERNYATAAN KEASLIAN KARYA ILMIAH ..................................................... viii MOTTO DAN PERSEMBAHAN ............................................................................... ix SARI/RINGKASAN ..................................................................................................... x PRAKATA ................................................................................................................... xi DAFTAR SINGKATAN TEKNIS DAN LAMBANG ............................................. xiv DAFTAR TABEL ....................................................................................................... xv DAFTAR GAMBAR ................................................................................................. xvi DAFTAR LAMPIRAN .............................................................................................. xix BAB I PENDAHULUAN ............................................................................................ 1 1.1 Latar Belakang................................................................................................ 1 1.2 Identifikasi Masalah ....................................................................................... 4 1.3 Pembatasan Masalah ...................................................................................... 5 1.4 Rumusan Masalah .......................................................................................... 5 1.5 Tujuan Penelitian ............................................................................................ 5 1.6 Manfaat Penelitian .......................................................................................... 6 iv BAB II KAJIAN PUSTAKA DAN LANDASAN TEORI.......................................... 7 2.1 Kajian Pustaka ................................................................................................ 7 2.2 Landasan Teori ............................................................................................. 13 2.2.1 Sistem Gas Buang (Exhaust System)..................................................... 13 2.2.2 Tegangan ............................................................................................... 26 2.2.3 Densitas ................................................................................................. 27 2.2.4 Berat Jenis ............................................................................................. 28 2.2.5 Udara ..................................................................................................... 28 2.2.6 Kecepatan .............................................................................................. 29 2.2.7 Fluida..................................................................................................... 29 2.2.8 Bilangan Reynolds ................................................................................. 30 2.2.9 Viskositas .............................................................................................. 31 2.2.10 Turbulensi ............................................................................................. 33 2.2.11 Tekanan ................................................................................................. 35 2.2.12 Solidwork............................................................................................... 38 2.2.13 Fluida Bertekanan ................................................................................. 41 2.2.14 Fluida Dinamis ...................................................................................... 41 2.2.15 Euro 4 Emission Test ............................................................................ 45 2.2.16 Euro 4 .................................................................................................... 46 2.2.17 Mobil Desa ............................................................................................ 46 2.2.18 Motor Bakar .......................................................................................... 47 2.3 Kerangka Pikir dan Hipotesis ....................................................................... 49 BAB III METODE PENELITIAN.............................................................................. 50 3.1 Waktu dan Tempat Pelaksanaan ................................................................... 50 3.1.1 Waktu Penelitian ................................................................................... 50 3.1.2 Tempat Penelitian.................................................................................. 50 3.2 Desain Penelitian .......................................................................................... 50 3.3 Alat dan Bahan Penelitian ............................................................................ 52 v 3.3.1 Alat Penelitian ....................................................................................... 52 3.3.2 Bahan Penelitian.................................................................................... 53 3.4 Model Rancangan ......................................................................................... 55 3.5 Prosedur Perancangan .................................................................................. 56 3.5.1 Tahap Pengumpulan Data ..................................................................... 56 3.5.2 Tahap Pemodelan I ................................................................................ 56 3.5.3 Tahap Pemodelan II .............................................................................. 57 3.5.4 Pemasukan Data Material ..................................................................... 59 3.5.5 Eksekusi / Komputasi ............................................................................ 59 3.5.6 Evaluasi ................................................................................................. 59 3.5.7 Output .................................................................................................... 60 3.6 Validasi Desain Pemodelan .......................................................................... 60 3.7 Parameter Penelitian ..................................................................................... 60 3.7.1 Variabel Bebas ...................................................................................... 60 3.7.2 Variabel Terikat .................................................................................... 60 3.7.3 Variabel Kontrol.................................................................................... 61 3.8 Teknik Pengumpulan Data ........................................................................... 61 3.8.1 Pengumpulan data berdasarkan hasil uji di Dinas Perhubungan .......... 61 3.8.2 Uji Dimensi ........................................................................................... 61 3.8.3 Uji Emisi ............................................................................................... 61 3.9 Teknik Analisis Data .................................................................................... 62 BAB IV HASIL DAN PEMBAHASAN .................................................................... 63 4.1 Hasil Penelitian ............................................................................................. 63 4.1.1 Pengukuran dimensi .............................................................................. 63 4.1.2 Spesifikasi Material ............................................................................... 63 4.1.3 Desain Rangka 3D................................................................................. 64 4.1.4 Boundary Conditions ............................................................................ 67 4.2 Hasil Pengujian ............................................................................................. 68 4.2.1 Hasil Uji Desain Tipe I ......................................................................... 68 vi 4.2.2 Hasil Uji Desain Tipe II ........................................................................ 71 4.2.3 Hasil Uji Desain Tipe III ....................................................................... 74 4.2.4 Perbandingan Hasil Analisis ................................................................. 77 4.3 Pembahasan .................................................................................................. 80 BAB V PENUTUP ..................................................................................................... 85 5.1 Kesimpulan ................................................................................................... 85 5.2 Saran ............................................................................................................