DAFTAR ISI
HALAMAN JUDUL ........................................................................................... i LEMBAR PENGESAHAN ................................................................................ ii HALAMAN PERNYATAAN ........................................................................... iii NASKAH SOAL TUGAS AKHIR ................................................................... iv HALAMAN PERSEMBAHAN ......................................................................... v INTISARI .......................................................................................................... vi KATA PENGANTAR ...................................................................................... vii UCAPAN TERIMA KASIH ........................................................................... viii DAFTAR ISI ..................................................................................................... xi DAFTAR GAMBAR ...................................................................................... xiii DAFTAR TABEL .......................................................................................... xvi DAFTAR LAMPIRAN .................................................................................. xvii DAFTAR NOTASI DAN SINGKATAN ...................................................... xviii BAB I PENDAHULUAN 1.1 Latar Belakang ............................................................................................... 1 1.2 Rumusan Masalah .......................................................................................... 4 1.3 Asumsi dan Batasan Masalah ......................................................................... 4 1.4 Tujuan Penelitian ........................................................................................... 4 1.5 Manfaat Penelitian ......................................................................................... 5 BAB II TINJAUAN PUSTAKA ........................................................................ 6 BAB III LANDASAN TEORI 3.1 Supply Chain Management.......................................................................... 12 3.1.1 Supply Chain Performance Measurement ........................................ 14 3.2 ReliabilityEngineering ................................................................................ 15 3.2.1 Identifikasi Awal Distribusi Kerusakan ............................................ 17 xi
3.2.2 Distribusi Kerusakan........................................................................ 19 3.2.3 Goodness of Fit................................................................................ 19 3.3 Reliability of Supply Chain.......................................................................... 20 3.3.1 Reliability Block Diagram ............................................................... 20 3.3.2 Fault Tree Analysis .......................................................................... 21 BAB IV METODE PENELITIAN 4.1 Objek Penelitian .......................................................................................... 24 4.2 Alat Penelitian ............................................................................................ 24 4.3 Bahan Penelitian ......................................................................................... 25 4.4 Tahapan Penelitian ...................................................................................... 26 BAB V HASIL DAN PEMBAHASAN 5.1 Studi Pustaka dan Observasi Lapangan untuk Membuat Existing Model Rantai Pasok Bagian Hulu Industri Gerabah di Kasongan ................. 31 5.2 Membuat Reliability Block Diagram (RBD) Rantai Pasok Bagian Hulu Industri Gerabah di Kasongan ............................................................ 39 5.3 Menghitung Nilai Kehandalan Rantai Pasok Bagian Hulu Industri Gerabah di Kasongan .................................................................................. 41 5.4 Mencari Penyebab Kegagalan dari Masing – Masing Elemen yang Ada pada RBD ............................................................................................ 49 5.5 Membangun Model Fault Tree Analysis (FTA) ........................................... 52 5.6 Memodifikasi Model FTA yang Telah Dibuat untuk Mendapatkan Nilai Kehandalan yang Lebih Tinggi ........................................................... 60 BAB VI PENUTUP 6.1 Kesimpulan ................................................................................................. 77 6.2 Saran........................................................................................................... 77 DAFTAR PUSTAKA ............................................................................... 82rr878 LAMPIRAN ..................................................................................................... 81 xii
DAFTAR GAMBAR Gambar 1.1
Lokasi Potensi Sumber Bahan Baku Keramik ............................... 3
Gambar 3.1
Bathtub curve (Ebeling, 1997) .................................................... 16
Gambar 3.2
Simbol pada FTA (Priyanta, 2000).............................................. 21
Gambar 4.1
Tahapan Penelitian...................................................................... 26
Gambar 5.1
Existing Model Rantai Pasok Industri Gerabah di Kasongan ....... 31
Gambar 5.2
Existing Model Rantai Pasok Bagian Hulu Industri Gerabah di Kasongan ................................................................................ 32
Gambar 5.3
Tanah Liat Asal Bangunjiwo ....................................................... 33
Gambar 5.4
Tanah Liat Asal Godean ............................................................. 35
Gambar 5.5
Tanah Campuran dengan Pasir .................................................... 36
Gambar 5.6
Tanah Liat Hasil Penggilingan .................................................... 36
Gambar 5.7
RBD Rantai Pasok Bagian Hulu Industri Gerabah di Kasongan .................................................................................... 39
Gambar 5.8
Peta Lokasi Elemen Penyusun RBD ............................................ 40
Gambar 5.9
Distribusi Data TBF Supplier Tanah Bangunjiwo ....................... 42
Gambar 5.10 Probability Plot TBF Supplier Tanah Wonosari .......................... 43 Gambar 5.11 Probability Plot TBF Supplier Tanah Godean ............................. 45 Gambar 5.12 Distribusi Data TBF Tempat Penggilingan Tanah 1 .................... 46 Gambar 5.13 Distribusi Data TBF Tempat Penggilingan Tanah 2 .................... 47 Gambar 5.14 Representasi dari Logika Model Rantai Pasok Bagian Hulu di Kasongan ................................................................................ 52 Gambar 5.15 FTA Supplier Tanah Liat ............................................................ 53 Gambar 5.16 FTA Tempat Penggilingan Tanah ............................................... 54 Gambar 5.17 FTA Rantai Pasok Bagian Hulu .................................................. 55 Gambar 5.18 Minimal Cut Sets pada Supplier Tanah Liat ................................ 56 Gambar 5.19 Model FTA dan Nilai Kehandalan Supplier Tanah Liat ............... 56 Gambar 5.20 Minimal Cut Sets pada Tempat Penggilingan Tanah 1 ................ 57 Gambar 5.21 Model FTA dan Nilai Kehandalan Tempat Penggilingan Tanah 1 ....................................................................................... 57
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Gambar 5.22 Minimal Cut Sets pada Tempat Penggilingan Tanah 2 ................ 58 Gambar 5.23 Model FTA dan Nilai Kehandalan Tempat Penggilingan Tanah 2 ....................................................................................... 58 Gambar 5.24 Minimal Cut Sets pada Rantai Pasok Bagian Hulu ...................... 59 Gambar 5.25 Model FTA dan Nilai Kehandalan Rantai Pasok Bagian Hulu ........................................................................................... 59 Gambar 5.26 Existing Supplier Tanah Dan Supplier Tanah Tambahan Industri Geranah di Kasongan ..................................................... 62 Gambar 5.27 RBD Model Modifikasi 1............................................................ 65 Gambar 5.28 FTA Supplier Tanah Model Modifikasi 1 .................................... 65 Gambar 5.29 FTA Model Modifikasi 1 ............................................................ 66 Gambar 5.30 RBD Model Modifikasi 2............................................................ 66 Gambar 5.31 FTA Supplier Tanah Model Modifikasi 2 .................................... 67 Gambar 5.32 FTA Model Modifikasi 2 ............................................................ 67 Gambar 5.33 RBD Model Modifikasi 3............................................................ 68 Gambar 5.34 FTA Supplier Tanah Model Modifikasi 3 .................................... 69 Gambar 5.34 FTA Model Modifikasi 3 ............................................................ 73 Gambar 5.35 RBD Model Modifikasi 4............................................................ 70 Gambar 5.36 FTA Supplier Tanah Model Modifikasi 4 .................................... 71 Gambar 5.37 FTA Model Modifikasi 4 ............................................................ 71 Gambar 5.38 RBD Model Modifikasi 5............................................................ 72 Gambar 5.39 FTA Supplier Tanah Model Modifikasi 5 .................................... 72 Gambar 5.40 FTA Model Modifikasi 5 ............................................................ 73 Gambar 5.41 RBD Model Modifikasi 6............................................................ 74 Gambar 5.42 FTA Supplier Tanah Model Modifikasi 6 .................................... 74 Gambar 5.43 FTA Model Modifikasi 6 ............................................................ 75
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DAFTAR TABEL
Tabel 1.1
Data Perkembangan Usaha Gerabah Pengrajin Kasongan ............. 2
Tabel 2.1
Atribut Kinerja dalam Metode SCOR ......................................... 10
Tabel 3.1
Rumus Variabel xi dan yi ............................................................ 18
Tabel 5.1
Karakteristik Tanah Liat Asal Bangunjiwo .................................. 34
Tabel 5.2
Keadaan Existing Supplier Bahan Baku Tanah Liat..................... 37
Tabel 5.3
Keadaan Existing Tempat Penggilingan Tanah ............................ 38
Tabel 5.4
Keadaan Existing Kegiatan Produksi Tempat Penggilingan Tanah.......................................................................................... 38
Tabel 5.5
TBF Supplier Bahan Baku Tanah Bangunjiwo ............................ 41
Tabel 5.6
TBF Supplier Bahan Baku Tanah Wonosari ................................ 42
Tabel 5.7
Nilai Index of Fit Supplier Tanah Wonosari ................................ 43
Tabel 5.8
TBF Supplier Bahan Baku Tanah Godean ................................... 44
Tabel 5.9
Nilai Index of Fit Supplier Tanah Godean ................................... 44
Tabel 5.10
TBF Tempat Penggilingan Tanah 1 ............................................. 45
Tabel 5.11
TBF Tempat Penggilingan Tanah 2 ............................................. 47
Tabel 5.12
Nilai Kehandalan Elemen Penyusun Rantai Pasok Bagian Hulu ........................................................................................... 48
Tabel 5.13
Hasil Pengamatan Probabilitas Kegagalan................................... 51
Tabel 5.14
Karakteristik Supplier Tanah Liat di Sekitar Yogyakarta............. 61
Tabel 5.15
Nilai Probability of Failure Supplier Tanah Tambahan ............... 63
Tabel 5.16
Estimasi Biaya Transportasi Tambahan ....................................... 64
Tabel 5.17
Nilai Kehandalan Model Modifikasi ........................................... 75
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DAFTAR LAMPIRAN
Lampiran 1
Peta Lokasi Pengembangan Industri Keramik di Indonesia .......... 85
Lampiran 2
Data Kerusakan pada Elemen Penyusun RBD ............................. 86
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DAFTAR NOTASI DAN SINGKATAN
BSC
= Balanced Score Card
CV
= Critical Value
DEA
= Data Envelopment Analysis
e
= nilai basis dari logaritma natural
FMEA
= Failure Mode and Effect Analysis
FTA
= Fault Tree Analysis = Nilai Median Rank
i
= Data waktu ke t
MTBF
= Mean Time Between Failure
n
= Jumlah data kerusakan
OOA
= Object Oriented Analysis
OVOP
= One Village One Program
P
= Probability of Failure
R
= Nilai Kehandalan
r
= Nilai index of fit
RBD
= Reliability Block Diagram
SCOR
= Supply Chain Operation Reference
SCM
= Supply Chain Management
SCRM
= Supply Chain Reliability Management
t
= Nilai waktu
TBF
= Time Between Failure = MTBF pada distribusi lognormal
β
= shape parameter pada distribusi weibull
ƞ
= scale parameter pada distribusi weibull
λ
= failure rate pada distribusi eksponensial
σ
= Standar Deviasi = Standar Deviasi pada distribusi lognormal
xvii
