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Pengurangan Bullwhip Effect dengan Metode Vendor Managed Inventory Fenny Rubbayanti Dewi; Annisa Kesy Garside
Jurnal Optimasi Sistem Industri Vol. 14 No. 2 (2015): Published in October 2015
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v14.n2.p292-298.2015

Abstract

Information distortion caused PT Multi Sarana Indotani got higher demand than the distributor. Demand variability in each echelon of the supply chain (bullwhip effect) may occur due to lack of demand stability that the producer had difficulty in determining the amount of production. One of the collaboration methods that can be applied to overcome the information distortion as causes of the bullwhip effect is vendor managed inventory, where the needs of distributor and retailers monitored and controlled by the producer. In this case, vendor managed inventory applied to two echelons, producer, and distributor.
A Modified Camel Algorithm for Optimizing Green Vehicle Routing Problem with Time Windows Utama, Dana Marsetiya; Safitri, Wa Ode Nadhilah; Garside, Annisa Kesy
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 24 No. 1 (2022): June 2022
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jti.24.1.23-36

Abstract

In recent years, the issue of fuel depletion has become a significant problem in the world. The logistics sector is one of the sectors with an increase in fuel consumption. Therefore, route optimization is one of the attempts to solve the problem of minimization fuel consumption. In addition, this problem generally also has time windows. This study aimed to solve the Green Vehicle Routing Problem with Time Windows (GVRPTW) using the Camel Algorithm (CA). The objective function in this problem was to minimize the total cost of distribution, which involves the cost of fuel consumption and the cost of late delivery. The CA parameter experiment was conducted to determine the effect of the parameter on distribution cost and the computation time. In addition, this study also compared the CA algorithm's performance with the Local search algorithm, Particle Swarm Optimization, and Ant Colony Optimization. Results of this study indicated that the use of Camel population parameters and the total journey step affected the quality of the solution. Furthermore, the research results showed that the proposed algorithm had provided a better total distribution cost than the comparison algorithm.
ANALISIS PENGARUH MANUFAKTUR MESIN PENGASAH PISAU PLANAR TERHADAP AKURASI GEOMETRI DAN KEKASARAN HASIL ASAHAN Setiyawan, Trio; Melvy Wattimena , Riles; Kristiawan , Timotius Anggit; Irianto , Sugeng; Hidayati , Nur; Wahyu Asry Ningtias, Dieta; Garside, Annisa Kesy; Setya Pratama, Mahendra
Journal of Economic, Business and Engineering (JEBE) Vol. 7 No. 2 (2026): April
Publisher : Universitas Sains Al Qur'an

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32500/jebe.v7i2.11018

Abstract

Dalam industri pengolahan kayu performa pemotongan sangat bergantung pada stabilitas sudut asah dan tingkat kekasaran permukaan mata pisau, dimana sudut yang konsisten dan kekasaran permukaan mata pisau mempengaruhi  hasil dari serutan kayu semangkin presisi sudut dan rendahnya tingkat kekasaran maka semangkin tinggi pula kwalitas hasil serutan. Penelitian ini berfokus pada manufaktur mesin pengasah mata pisau planer guna mengidentifikasi parameter pengasahan yang optimal serta mengatasi limitasi metode manual yang memiliki kendala pada aspek presisi dan efisiensi waktu. Metodologi penelitian yang diterapkan adalah pendekatan Shigley, yang mencakup tahapan identifikasi kebutuhan, formulasi masalah, sintesis, analisis, optimasi, hingga evaluasi. Prosedur pengujian komprehensif dilakukan untuk memvalidasi kinerja sistem, meliputi: Uji Fungsional dan Keamanan memastikan seluruh mekanisme bekerja dengan baik dan aman. Uji Akurasi Geometris mengukur deviasi sudut asah menggunakan shadowgraph untuk memverifikasi kesesuaian antara sudut aktual dengan setting awal pada penjepit. Uji Parameter Kinematik menganalisis kecepatan rotasi batu gerinda dan kecepatan translasi meja. Hasil penelitian merealisasikan mesin pengasah pisau planer. Data eksperimental menunjukkan bahwa mesin ini mampu menghasilkan sudut pengasahan dengan tingkat presisi mencapai 99,55%. Pada parameter kecepatan sliding 0,011 m/s, diperoleh nilai kekasaran permukaan rata-rata (Ra​) sebesar 0,06 µm. Capaian ini menunjukkan kualitas permukaan yang jauh lebih unggul dibandingkan metode manual yang menghasilkan nilai Ra​ sebesar 0,235 µm. Implementasi mesin ini diharapkan dapat menjadi substitusi metode pengasahan konvensional untuk mencapai hasil yang lebih optimal, sekaligus menjadi referensi akademik dalam pengembangan teknologi pemesinan serupa di masa depan.
Improving tofu product quality through the integration of the Kano model and Quality Function Deployment (QFD) Dinda Finandita Putri; Annisa Kesy Garside; Thomy Eko Saputro; Tyas Yuli Rosiani; Mohd Nabil Bin Muhtazaruddin
Journal Industrial Servicess Vol 12, No 1 (2026): April 2026
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jiss.v12i1.32596

Abstract

Many MSMEs struggle with process variations and inconsistent quality in the highly competitive tofu manufacturing industry. Problems such as unpleasant odors, inconsistent cut sizes, and irregular textures damage customer satisfaction and affect market competitiveness. In light of this, the aim of this study is to provide a systematic framework for identifying and prioritizing high-risk quality attributes in tofu products, using the case study in an MSME. Hence, this research develops a holistic approach that integrates the Kano model and Quality Function Deployment (QFD) to translate customer requirements into measurable technical actions. A survey of 73 respondents to the study identified 12 product attributes, classified into must-be, one-dimensional, and attractive attributes. So, these attributes were inserted in the HoQ-related matrix from which eight technical responses were ranked as mentioned before: high-quality soybean selection, elimination of chemical preservatives, boiling temperature control, and use of food-grade packaging materials. This integration provides a quantitative and systemic basis for process standardization in artisanal food production. It helps MSMEs establish an overarching strategic direction towards product consistency and, subsequently, competitiveness through data-driven quality improvement strategies.
PERANCANGAN CYLINDER CATCHPOT VACUUM INFUSION SEBAGAI MEDIA PEMBUAT KOMPOSIT SERAT KARBON Firman Yasa Utama; Mohammad Irfan; Annisa Kesy Garside; Andita Nataria F.G.; Ferly Isnomo Abdi
Otopro Vol 21 No 1 Nov 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v21n1.p30-37

Abstract

The use of metal or steel in a variety of applications has begun to be replaced by Carbon Fiber Reinforced Polymer (CFRP). Some of the advantages of CFRP include mechanical strength almost equal to, and sometimes exceeding, that of metal materials. One innovation in the manufacture of carbon fibre composites is the vacuum infusion method. Resin is drawn into the mould under suction pressure from a vacuum pump. Excess resin is drained from the mould through a hose and collected in a container, which also serves to control the vacuum pressure in the mould before it enters the pump. Previously, the catchpot was made of square-shaped iron with permanently welded joints, resulting in unstable suction pressure. Additionally, the resin's fast curing properties made cleaning difficult, leading to blockages in the hose over time. These issues highlight the need for a vacuum infusion design that is easy to open and close, easy to control and leak-proof. In this study, a research and development (R&D) approach was taken. The design process for the Cylinder Catchpot Vacuum Infusion begins with the design, calculation, and design stages, and ends with functional testing. The design process takes into account dimensions and the motor power required to use ¼HP for a 1-liter catchpot. The component is manufactured through the manufacturing stage and undergoes functional testing, where the Cylinder Catchpot Vacuum Infusion tool detects no leaks in the circuit, ensuring stable pressure, and ensuring proper resin distribution throughout the fibers, ensuring no voids in the composite
Minimasi Waste pada Proses Produksi Susu Pasteursiasi dengan Pendekatan Lean Manufacturing Ayunani, Denisa Indah; Garside, Annisa Kesy; Wardana, Rahmad Wisnu
Performa: Media Ilmiah Teknik Industri Vol 23, No 2 (2024): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.23.2.84224

Abstract

CV Milkindo Berka Abadi merupakan sektor usaha yang bergerak pada bidang peternakan sapi perah, industri pengolahan susu, dan wisata edukasi. Berdasarkan observasi, dari beberapa proses produksi susu pasteurisasi kemasan cup memiliki beberapa waste yang sering terjadi pada proses produksi susu pasteursiasi kemasan cup yaitu menunggu dan gerakan berlebih. Tujuan penelitian ini adalah meminimasi waste pada proses produksi susu pasteurisasi kemasan cup dengan menggunakan pendekatan lean manufacturing. Langkah penelitian meliputi identifikasi jenis waste dominan menggunakan metode borda, pemilihan detail mapping tool menggunakan metode VALSAT, menentukan detail waste dengan detail mapping tool terpilih dari metode VALSAT, identifikasi penyebab dari detail waste menggunakan FTA, menentukan prioritas waste dengan menggunakan FMEA, dan pemberian usulan perbaikan berdasarkan mode kegagalan yang memiliki RPN tertinggi. Hasil dari metode borda didapatkan bahwa jenis waste dominan adalah unnecessary motion dan waiting dengan bobot yang sama senilai 0,204. Usulan perbaikan yang direkomendasikan untuk meminimasi waste di perusahaan yaitu Membuat jadwal preventive maintenance dan membuat visual display.
Pemilihan Supplier dengan Metode Step-Wise Weight Assessment Ratio Analysis dan Extended Promethee II Hidayat, Arief; Garside, Annisa Kesy; Saputro, Thomy Eko
Performa: Media Ilmiah Teknik Industri Vol 22, No 2 (2023): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.22.2.78266

Abstract

Pertumbuhan bisnis dalam bidang konstruksi di Indonesia berkembang pesat, sehingga membuat persaingan bisnis bertambah khususnya Kalimantan Timur. Salah satu kegiatan yang penting bagi perusahaan konstruksi adalah melakukan pengadaan persediaan bahan baku. Ketersediaan bahan baku merupakan faktor penting yang harus diperhatikan agar proses produksi dapat berjalan dengan baik. Untuk menjaga kelangsungan proses produksi, perusahaan bekerjasama dengan supplier bahan baku yang tepat agar dapat menyediakan bahan baku saat dibutuhkan. Tujuan dari penelitian ini adalah mengidentifikasi kriteria dan sub kriteria yang tepat dan menentukan supplier terbaik yang dapat diterapkan segera oleh PT Balikpapan Ready Mix Pile. Hasil dari penelitian ini terdapat 6 kriteria dan 15 sub kriteria terpilih untuk menentukan supplier yang tepat. Metode Step-Wise Weight Assessment Ratio Analysis digunakan untuk menentukan bobot kriteria dan sub kriteria. Sub kriteria paling penting dalam pemilihan supplier adalah kualitas bahan dengan nilai bobot sebesar 0,2639. Selanjutnya, hasil pengolahan data dengan Extended Promethee II diperoleh alternatif supplier terbaik adalah alternatif A2 dengan nilai prioritas sebesar 0,2692
Determination of Preventive Maintenance Interval Based on Reliability Threshold and Risk-Based Maintenance Gilang Maulana Akbar; Annisa Kesy Garside; Rahmad Wisnu Wardana
Performa: Media Ilmiah Teknik Industri Vol. 25 No. 1 (2026): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.v25i1.2769

Abstract

PT. XYZ is a company engaged in sugar production, where the cane cutter machine plays a critical role in shredding sugarcane before extraction. During the milling period from May to November 2023, the machine experienced 31 breakdowns, leading to considerable downtime and increased operational costs. This study determines maintenance intervals using the Risk-Based Maintenance (RBM) approach to assess risk levels and the Cost of Unreliability (COUR) method to quantify financial impacts. The initial RBM analysis identified a monthly risk value of IDR 47,147,150. By implementing scheduled replacement intervals—17 days for the cutting knife, 28 days for the cutting disk, 14 days for the bearing, 31 days for the conveyor, and 26 days for the driving turbine—the Cost of Reliability (COR) was established at IDR 76,700,415/month. Although the planned expenditure increased, it remains within the company's 2% tolerance limit at a 1.66% severity level. Furthermore, the COUR analysis revealed that the potential downtime loss of IDR 238,583,981 far outweighs the preventive investment. These results demonstrate that integrating RBM and COUR methods effectively balances maintenance costs while protecting the company from disproportionate financial losses due to equipment unreliability.
Co-Authors Adelya Amanda Adhi Nugraha Adhi Nugraha Ahmad Zamawi Ghozali Alfian Alif Amelia Khoidir Andita Nataria F.G. ANDRI SULAKSMI ANDRI SULAKSMI, ANDRI Anindia Karunia Pangesti Aprilianti, Chusnul Arief Hidayat Ayunani, Denisa Indah Azhar Adi Darmawan Bachri, Affan Baiq Nurul Izzah Farida Ramadhani Baiq Nurul Izzah Farida Ramadhani Baya’sud, Faris Cahyanti, Dian Nur Chairil Saleh Chusnul Aprilianti Dana Marsetya Utama Dian Nur Cahyanti Dian Palupi Restuputri Dinda Finandita Putri Eduardo e Oliveira Ella Dewi Krisnanti Elya Rosiana Ernawan Setyono Fenny Rubbayanti Dewi Ferly Isnomo Abdi Fibriani, Lenny Firman Yasa Utama FITHRIANY HADZIQAH FITHRIANY HADZIQAH, FITHRIANY Fitra Risaldi Fuad Bahrul Ilmi Gigih Amayu Pragastio Gilang Maulana Akbar Hanny Kanavika Rizky Munawar Harto, Setyo Hasyim Yusuf Asjari Hasyim Yusuf Asjari, Hasyim Yusuf Heri Mujayin Kholik Hidayati , Nur Ikhlasul Amallynda Ikhlasul Amalynda Irianto , Sugeng Iswanda, Dovian Junaidi, Mahbub Kristiawan , Timotius Anggit Laili, Nabila Rohmatul Laksono, Arief Budi Lapele, Sukmawati Leo Rizki Ardiansyah Lukman, Mohammad Marrica Ahmad Marrica Ahmad Martina Juan Martina Juan, Martina Melvy Wattimena , Riles Mohammad Irfan Mohd Nabil Bin Muhtazaruddin Muhamad Lukman Muhammad Alif Ihsan Muhammad Helmi Kurniawan Munawar, Hanny Kanavika Rizky Nabila Rohmatul Laili Nadia Mardhiyah Nasution, Riven Nyimas Mirnayanti Jayasari Sutadisastra Ode Rapija Gunarimba Waibo Pangesti, Anindia Karunia R. Hadi Wahyuono R. Hadi Wahyuono Rachman, Hamim Rahmad Wisnu Wardana Rara Putri Ayuning Tyas Renggarsari, Rika Risma Riven Nasution Sabrina Legtria Wardani Safitri, Wa Ode Nadhilah Sanjaya , Wahyu Eka Putra Sanjaya, Wahyu Eka Putra Santoso, Eko Wahyu Satya Sudaningtyas Satya Sudaningtyas Selsa Ulfia Siswanti Setiyawan, Trio Setya Pratama, Mahendra Setyo Harto Shanty Kusuma Dewi Teguh Baroto Thomy Eko Saputro Tiananda Widyarini Tiananda Widyarini Tyas Yuli Rosiani Tyas Yuli Rosiani Wahyu Asry Ningtias, Dieta Wahyu Wicaksono Wardana , Rahmad Wisnu