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All Journal PROSIDING SEMINAR NASIONAL AUSTENIT Jurnal Sains dan Seni ITS Jurnal Ilmu Manajemen (JIM) Jurnal Statistika Universitas Muhammadiyah Semarang Jurnal Teknologi The Indonesian Journal of Occupational Safety and Health The Spirit of Society Journal : International Journal of Society Development and Engagement JTAM (Jurnal Teori dan Aplikasi Matematika) J Statistika: Jurnal Ilmiah Teori dan Aplikasi Statistika JURNAL NUSANTARA APLIKASI MANAJEMEN BISNIS Jurnal Entrepreneur dan Entrepreneurship Journal of Information System,Graphics, Hospitality and Technology JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) International Journal of Marine Engineering Innovation and Research JISO : Journal of Industrial and Systems Optimization Sawala : Jurnal pengabdian Masyarakat Pembangunan Sosial, Desa dan Masyarakat Jurnal Techno Bahari Joutica : Journal of Informatic Unisla ATHENA: Journal of Social Culture and Society Metris: Jurnal Sains dan Teknologi Journal of Safety, Health, and Environmental Engineering Jurnal Teknologi Maritim Jurnal Cakrawala Maritim Proceeding Maritime Business Management Conference PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Farizi Rachman
Politeknik Perkapalan Negeri Surabaya
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Journal : JISO : Journal of Industrial and Systems Optimization

 1 
SCHEDULING EVALUATION OF CONSTRUCTION PROJECT USING FUZZY LOGIC APPLICATION FOR SCHEDULING (FLASH) METHOD Hasugian, Devina Bianca Putri Rahadyan; Maharani, Aditya; Rachman, Farizi
JISO : Journal of Industrial and Systems Optimization Vol. 7 No. 1 (2024): Juni 2024
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v7i1.31-38

Abstract

For the running of a project, it is necessity to have project planning such as project schedule. PT Ometraco Arya Samanta is a company that engaged in steel structure. This company implement schedule planning based on tonnage. This method is considered suboptimal, since in its implementation has discrepancy of completion time between the schedule plan and the actual. To get an optimal schedule, it needs appropriate method. Construction project is a complex project and has uncertainty completion time. Project Evaluation and Review Technique (PERT) and Fuzzy Logic Application for Scheduling (FLASH) could be used for projects with uncertain completion time and more emphasis on time estimation than cost. PERT and FLASH are using three estimation time, then obtained probability percentage of completion time. Nevertheless, PERT is only consider the completion time by the critical path, while FLASH is able to determine project time by the entire project activities. Thereby, the methods used in this article is FLASH. The analysis results of this case study as follows: the interval completion time with FLASH in the amount of 106 days for optimistic time, 237 days for pessimistic time, and 169 days for most likely time. By the duration target of 179 days, it is obtained 85,29%. Dalam pengerjaan suatu proyek diperlukan perencanaan proyek berupa penjadwalan proyek. PT Ometraco Arya Samanta merupakan perusahaan konstruksi baja. Perusahaan ini memanfaatkan penjadwalan berdasarkan tonase proyek. Metode tersebut dirasa belum optimal, sebab dalam pelaksanaannya sering kali terjadi ketidaksesuaian waktu penyelesaian proyek antara rencana dengan aktualnya. Untuk mendapatkan penjadwalan yang optimal, diperlukan metode yang tepat. Proyek konstruksi merupakan proyek yang kompleks dan memiliki durasi penyelesaian yang bersifat tidak pasti. Project Evaluation and Review Technique (PERT) dan Fuzzy Logic Application for Scheduling (FLASH) dapat digunakan untuk proyek yang memiliki ketidakpastian waktu dan menekankan pada estimasi waktu daripada biaya. PERT dan FLASH menggunakan tiga estimasi waktu yang kemudian didapatkan persentase kemungkinan terselesaikannya proyek. Namun, PERT hanya memperhitungkan waktu penyelesaian proyek berdasarkan lintasan kritis, sedangkan FLASH dapat mempertimbangkan waktu proyek dari keseluruhan kegiatan proyek. Sehingga, metode yang digunakan di dalam artikel ini adalah FLASH. Hasil analisis dari penelitian ini didapatkan selang waktu penyelesaian proyek yaitu waktu paling cepat 106 hari, waktu paling lama 237 hari, dan waktu paling mungkin sebesar 169 hari. Dengan menggunakan waktu target 179 hari, didapatkan probabilitas sebesar 85,29% dari rentang waktu 169 hari hingga 237 hari.
APPLICATION OF TAGUCHI METHOD IN OPTIMIZING INJECTION MOLDING PARAMETERS TO NETTO OF BIORING CONE CUP PRODUCTS Pramestiani, Ika; Karuniawan, Bayu Wiro; Rachman, Farizi
JISO : Journal of Industrial and Systems Optimization Vol. 6 No. 2 (2023): Desember 2023
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v6i2.117-123

Abstract

Bioring Cone Cup products are produced by Sukodono molding industry with injection molding machine. However, at the beginning of production in getting the parameter value still uses a trial and error system, so this problem results in defects that cause the weight of the product is not in accordance with the agreement so that this product must be recycled again by spending a long time. With this problem, the company suffered losses because it had to pay compensation for production delays. So that research is needed that discusses the optimization of injection molding parameters on the net response of bioring cone cup products. This research uses the parameters of injection pressure, injection temperature, and cooling time. The method used is taguchi with signal to noise ratio criteria, namely smaller is better to determine the effect of factors and also the optimal parameters for the production process. From the experimental results, the optimal combination of variables is obtained, namely the injection pressure parameter at level 1 with a value of 80 bar, injection temperature at level 3 with a value of 230 , and cooling time at level 3 with a value of 0.5 seconds. Produk Bioring Cone Cup diproduksi oleh industri molding Sukodono dengan mesin injection molding. Namun pada awal produksi dalam mendapatkan nilai parameter masih menggunakan sistem trial and error, sehingga permasalahan ini mengakibatkan adanya cacat yang menyebabkan berat produk tidak sesuai kesepakatan sehingga produk ini harus didaur ulang kembali dengan menghabiskan waktu yang cukup lama. Dengan permasalahan tersebut, perusahaan ini mengalami kerugian dikarenakan harus membayar kompensasi keterlambatan produksi. Sehingga dibutuhkan penelitian yang membahas optimalisasi parameter injection molding terhadap respon netto produk bioring cone cup. Penelitian ini menggunakan parameter injection pressure, injection temperature, dan cooling time. Metode yang digunakan adalah taguchi dengan kriteria rasio signal to noise yaitu smaller is better untuk mengetahui pengaruh factor dan juga parameter yang optimal untuk proses produksi. Dari hasil eksperimen, didapatkan hasil kombinasi variabel yang optimal yaitu parameter injection pressure pada level 1 dengan nilai 80 bar, injection temperature pada level 3 dengan nilai 230 , dan cooling time pada level 3 dengan nilai 0,5 detik. 
Co-Authors Achmad Syawariqul Anwar Adelia Al Sakina Aditia Rizki Sudrajat Aditya Maharai Aditya Maharani admin CDMA Afifah, Zumrotin Nur Ahdinia Intan Lestari Ajeng Sukarno Putri Akhmad Nabil Allam Akhzam Samyvikar Akseptori, Ristanti Alifia Rojana Am Maisarah Disrinama Aminatus Sa’diyah Anda Iviana Juniani Anggie Madhu Firdiandani Anggie Madhu Firdiandani Anita Nuryanti Anni Intan Faricha Anni Intan Faricha Aprilia Puspita Dewi Arfianto, Afif Zuhri Arief, M.Lukman Arif, Muhammad Lukman Arum Sukma Mutiara Arumsari, Nurvita Arun Sukma Mutiara Ashari, M Luqman Bachtiar Bachtiar Bagas Ramadhan Sutrisno Bayu Wiro K Bayu Wiro K. Bayu Wiro Karuniawan Bayu Wiro Karuniawan Bayu Wiro Karuniawan Bayu Wiro Kurniawan Beauty, Nur Lailany Fenny Clarissa Addikko Febryantie Yasmine Deni Oktavina Radiant Dewi Kurniasih Dewi Kurniasih Dewi Kurniasih Dewi Kurniasih Dhika Aditya Purnomo Diajeng Rizky Amelia Dian Asa Utari Fais Hamzah Faiz Hamzah, Faiz Faren Rizka Samara Fipka Bisono Firmansyah, Vicky Candra Fitri Hardiyanti Gaguk Suhardjito Hamzah, Fais Hasugian, Devina Bianca Putri Rahadyan Heppy Ridhatul Aula Hisyam Rafly Syahputra Iis Nafisa Ika Erawati Ika Erawati Ika Pramestiani Ika Pramestiani Ika Rista Yuniarti Astutik Indri Santiasih Inge Ventarani Abdul Irishka Sara Aprilia Irna Faridatul Khasanah Isanda Ika Damayanti Isna Aulia Kharisma Ivan Bagus Achmal Karuniawan, Bayu Wiro Kholish Adilah Damayanti Kinari Lalitya Kirana Enggar Kusuma Kurniawan, Bayu W. Kusuma, George E Lanang Ilham Kelana Lintang Aditya Wardani Lukman Handoko M. Basuki Rahmat Maharani, Aditya Mahfudzi, Imam Maya, Risma Aris Mega Tri Yoningtias Mega Tri Yoningtias Melia Chandra Millana Mohammad Basuki Rahmat Muhammad Afif Muhammad Haffid Indra Brillyanto Nanda Dini Eka Syah Putri Neoninsa Risma Rossihanida Nizar Anas Noorman Rinanto Novita Anggraini Nur Lailany Fenny Beauty Oktaviana Vara Ika Putri Pradita Nurkholies Pramestiani, Ika Pranowo Sidi Primaningtyas, Widya Emilia Purnomo, Dhika A. Purwitasari, Ratri Wahyuning Putri Amalia Maviroh R. A. Norromadani Yuniati R. A. Norromadani Yuniati Rachmat, Aulia Nadia Ratri Wahyuning Purwitasari Rena Riza Umami Renanda Nia Rachmadita Ridhani Anita Fajardini Rikma Mila Ilmaya Rina Sandora Risdyani Nabila Basyasyah Risma Aris Maya Risma Aris Maya Rizal Indrawan Rosyita Firdaus Rosyita Firdaus Ryan Yudha Aditya Santi Wulan Purnami Sidi, Pranoto Thina Ardliana Thina Ardliana, Thina Thoriqul Hakim Tisya P. Ramadhani Tisya Pramesta Ramadhani Tri Andi Setiawan Tri Andi Setiawan Wahyudi Wahyudi Wardani, Lintang Aditya Wisdha Riezqi Ginandhani Yahya Bahar Prihantono Yovindra Anggita Dyah Fortuna Yugowati Praharsi Yugowati Praharsi Yuniati, R.A. Norromadani Zaqi Asshidiqi Zumrotin Nur Afifah