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All Journal Jurnal Rekayasa Mesin Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Journal of Mechanical Engineering and Applied Technology Jurnal Polimesin
Nanang Budi Sriyanto
Jurusan Teknik Mesin, Politeknik Negeri Semarang Jl. Prof. H. Soedarto, S.H. Tembalang, Semarang 50275. PO BOX 6199
Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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PENERAPAN MESIN ROLLING PIPA DI BENGKEL KNALPOT JALAN SETIABUDI SUMURBOTO SEMARANG Sriyanto, Nanang Budi; Purnomo, Adhy; Putranto, Ariawan Wahyu
Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Vol. 1 No. 1 (2020): Vol. 1 No. 1 Oktober 2020
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (267.392 KB) | DOI: 10.32497/sitechmas.v1i1.2231

Abstract

Bengkel knalpot Jl. Setiabudi No. 36, Kelurahan Sumurboto, Kecamatam   Banyumanik, Semarang di dirikan oleh Bapak Eko Budiyono. Bengkel tersebut termasuk usaha kecil menengah yang bergerak dalam pembuatan dan perbaikan knalpot dengan empat orang karyawan. Produktifitas dalam sebulan bisa menghasilkan 10 buah knalpot dengan mendapat penghasilan mencapai sepuluh juta hingga dua puluh juta rupiah per bulan. Keterbatasan mesin yang ada tidak mengurangi hasrat Eko Budiyono untuk menjadi wirausahawan. Berbekal modal skill yang dimilikinya dan dengan peralatan sederhana, suatu knalpot mobil di kerjakan dengan hasil yang cukup memuaskan. Bantuan yang diperlukan UKM tersebut dari Perguruan Tinggi adalah peralatan mesin rolling pipa yang dapat digunakan untuk menekuk pipa ukuran knalpot motor. Rencana yang akan dilaksanakan untuk mencapai tujuan tersebut adalah dengan memberikan hibah iptek berupa mesin rolling pipa dan memberikan pelatihan-pelatihan yang berhubungan dengan mesin tersebut. Proses pendampingan akan dilakukan selama 4 bulan. Penghibahan mesin rolling pipa ini diharapkan dapat memberikan kontribusi pada UKM, Usaha pembuatan knalpot ini diharapkan akan memberikan lapangan kerja baru bagi masyarakat sekitar, sehingga pertumbuhan ekonomi akan meningkat. Pengabdian kepada masyarakat ini juga melibatkan mahasiswa jurusan Teknik Mesin POLINES untuk pembelajaran sosial dan mendukung tugas akhir.  Kata kunci: Bengkel knalpot, pembuatan knalpot, perbaikan knalpot, penghibahan mesin, mesin rolling
Experimental and Numerical Study of Shock Absorber Characterization and The Implication on The Dynamics of Half Vehicle Suspension System Model An-Nizhami, Avicenna; Sriyanto, Nanang Budi; Sumiyarso, Bambang; Ulum, Showi Nailul; Riadini, Elfrida Rizky; Widodo, Ignatius Gunawan
Jurnal Rekayasa Mesin Vol. 18 No. 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.5023

Abstract

This study aimed to characterized shock absorber damping for passenger comfort. The riding comfort of the vehicle has direct correlation to the damping characteristic of the shock absorber of the suspension system. Two different shock absorbers were experimentally evaluated, and their damping characteristics were integrated into a half-car model to study the vehicle's dynamic response to harmonic road disturbances. The investigation involved numerical simulations of the half-car model subjected to harmonic road disturbances, represented by a set of ordinary differential equations solved using the Dormand-Prince method. Experimental data yielded average damping forces of 502.77 N for shock-absorber #1 and 192.03 N for shock-absorber #2. Calculations resulted in damping coefficients of 3888.57 N ·s/m for shock-absorber #1 and 1397.85 N ·s/m for shock-absorber #2, with corresponding damping ratios of 0.29 and 0.105. These damping ratios generally aligned with typical values for passenger car shock absorbers, except for shock-absorber #2, which deviated from the expected range. The study found that at 60 km/h and 90 km/h, shock-absorber #1 with ζ=0.29 exhibited superior performance in reducing displacement amplitude compared to shock-absorber #2 at ζ=0.105. However, at 120 km/h, both shock-absorbers displayed similar responses, with shock-absorber #1 slightly surpassing shock-absorber #2 in displacement amplitude.
Analisis Uji Kinerja Mesin Pencetak Briket Serbuk Kayu Gargajian dengan Sistem Pneumatik Munawwaroh, Dita Anies; Sriyanto, Nanang Budi; Hidayat, Arif; Baskara, Danang Adi
Journal of Mechanical Engineering and Applied Technology Vol. 1 No. 2 (2023): Volume 1 Issue 2 Year 2023 (July 2023)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v1i2.4883

Abstract

Sawdust briquettes molding machine is a machine for printing sawn briquettes as an alternative replacement for fossil fuels. The filling and compacting sawdust briquettes sawn using a pneumatic system that aims to improve the productivity of printing sawdust briquettes sawn still manually. With the printing press sawdust briquettes sawn with pneumatic system is expected to get a working process faster and lower error and operator convenience in the work process. The method is performed in the manufacture of printing machines sawdust briquettes sawn with pneumatic system is to conduct election observation in the form of alternative designs, design, manufacturing, assembly up until the testing process and data retrieval. Results of design scorer sawdust briquettes sawn with a pneumatic system using 8 bar working pressure that is with dimensions of 100 mm x 150 mm x 70 mm. Results from the manufacture of machinery sawdust briquettes sawn printer with a pneumatic system can be deduced briquette machine can print with a capacity of 600 briquettes per hour with a good and efficient time.
RANCANG BANGUN ELECTRIC ROTARY TABLE BERBASIS INVERTER GUNA MENURUNKAN CYCLE TIME PADA PRODUKSI PIPA KAPILER Sriyanto, Nanang Budi; Ulum, Muhammad Showi Nailul; Sai”™in, Ali; Su'udi, Ahmad Hamim
Journal of Mechanical Engineering and Applied Technology Vol. 2 No. 3 (2024): VOLUME 2 ISSUE 3 YEAR 2024 (NOVEMBER 2024)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v2i3.6078

Abstract

Cycle Time merupakan hal yang harus diperhatikan dalam waktu produksi, Cycle Time yang baik akan menunjang target yang harus terpenuhi, bahkan jika Cycle Time menurun maka produksi juga akan meningkat dan omset perusahaan juga akan meningkat. Pada studi kasus PT Arisamandiri Pratama yang salah satu produksinya berupa part AC yaitu pipa kapiler yang masih mengunakan meja putar manual untuk memutar pipa yang akan dilakukan proses las sehingga tidak mampu mencapai target 800 part/jam atau 6400 part/hari. Dengan rancang bangun Electric Rotary Table yang diputar dengan menggunakan motor listrik dapat menurunkan Cycle Time sebesar 17,38% dengan kapasitas 935 part/jam, hal ini melebihi target produksi sebesar 800 part/jam
Optimization of soldering quality using poka-yoke and camera-based inspection to prevent incomplete production cycle: a case study in automotive stator assembly Khoryanton, Ampala; Yanuar, Padang; Aditya, Dwiky Septian; Mujiarto, Iman; Tristijanto, Hery; Alfauzi, Abdul Syukur; Sunarto, Sunarto; Sriyanto, Nanang Budi
Jurnal Polimesin Vol 23, No 4 (2025): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i4.7203

Abstract

This study was conducted at a manufacturing company located in Indonesia that produces Alternating Current Generator Starters (ACGS). In the ACGS production process, there is a solder inspection stage that was previously performed manually by operators. The main issue encountered is incomplete production cycles, a condition where a production cycle is not fully completed, but the product continues to the next stage, increasing the risk of undetected defective or rejected products. Research aims to design a camera check system that integrates the Poka-Yoke method to enhance accuracy and prevent errors caused by human factors based on continuous improvement through the Plan, Do, Check, Action (PDCA) cycle. This study compares two camera inspection programs: program model 1, with individual position calibration per solder point, and program model 2, with a shared calibration setup, to evaluate inspection effectiveness. The quantitative comparative testing results show a detection accuracy of up to 99.92% and an inspection result classification accuracy reached 99.73%, indicating a significant improvement in the reliability of the visual inspection system and quality assurance for soldering results in industry.
Co-Authors Aditya, Dwiky Septian Alfauzi, Abdul Syukur An Nizhami, Avicenna Arif Hidayat Bambang Sumiyarso Baskara, Danang Adi Elfrida Rizky Riadini Hery Tristijanto Khoryanton, Ampala Munawwaroh, Dita Anies Padang Yanuar Purnomo, Adhy Putranto, Ariawan Wahyu Sai”™in, Ali Su'udi, Ahmad Hamim Sunarto Sunarto Ulum, Muhammad Showi Nailul Ulum, Showi Nailul Widodo, Ignatius Gunawan