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All Journal VANOS Journal of Mechanical Engineering Education SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan
Hanif Hidayat
Universitas Negeri Semarang
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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PELATIHAN SOFTWARE RHINOCEROS DAN MAXSURF UNTUK MENINGKATKAN KOMPETENSI DESAIN 3D PENGRAJIN KAPAL TRADISIONAL DI PESISIR PEKALONGAN Aldias Bahatmaka; Ranu Iskandar; Rizki Setiadi; Deni Fajar Fitriyana; Imanu Danar Herunandi; Rizqi Fitri Naryanto; Hanif Hidayat; Abdurrahman Abdurrahman; Muhammad Yusuf Wibowo; Andi Abdullah Ghyferi; Rafif Dimas Pratama; Fiqri Fadillah Fahmi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 3 (2023): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i3.17220

Abstract

ABSTRAKKota Pekalongan terletak di pantai utara Jawa Tengah dimana wilayah pesisir utara ini terdapat potensi yang dapat dikembangkan menjadi aset yang berharga bagi bangsa yaitu para pembuat kapal tradisional. Dalam pelaksanaannya, baik tipe ataupun bentuk kapal yang dibangun, berdasarkan pengalaman kapal-kapal yang pernah dibuat sebelumnya, tanpa melalui perhitungan dan penggambaran terlebih dahulu, sehingga dalam beberapa kasus terhadap pesanan kapal yang berbeda bentuknya, maka pengrajin ini akan mengalami kesulitan. Minimnya pengetahuan tentang gambar teknik juga menyebabkan para pengrajin kapal tradisional tidak dapat menggambar lambung kapal mereka. Hal ini menyebabkan perlunya sosialisasi mengenai teknologi perkapalan kepada pengrajin kapal di Kota Pekalongan terutama dibidang rancang bangun (design) dan konstruksi kapal agar terdapat standar baku mengenai konstruksi kapal kayu yang sesuai dengan standar yang ada seperti Biro Klasifikasi Indonesia (BKI). Pelatihan dilakukan dengan metode presentasi, demonstrasi, serta praktik langsung. Untuk mengukur pencapaian maka dilakukan pretest dan posttest yang dilakukan sebelum dan sesudah pelatihan. Hasil kuesioner menunjukkan adanya peningkatan pengetahuan peserta pelatihan desain kapal. Sebelum dilakukan pelatihan, rata-rata pengetahuan peserta sebesar 26% dalam memahami desain kapal dan 33% dalam memahami analisa tahanan kapal, kemudian mengalami peningkatan menjadi rata-rata sebesar 76% untuk pemahaman desain kapal dan 77% untuk analisa tahanan kapal setelah diberi pelatihan. Kata kunci: desain; pengrajin; kapal kayu; karakteristik kapal ABSTRACTThe city of Pekalongan is located on the north coast of Central Java where there is potential for this northern coastal region to be developed into a valuable asset for the nation, namely traditional shipbuilders. In practice, both the type and shape of the ship built, based on the experience of ships that have been made before, without going through calculations and drawings beforehand, so that in some cases orders for ships with different shapes, these craftsmen will experience difficulties. The lack of knowledge about technical drawings also causes traditional shipbuilders to be unable to draw their hulls. This causes the need for socialization regarding shipping technology to ship craftsmen in Pekalongan City, especially in the field of ship design and construction so that there are standard standards regarding wooden ship construction in accordance with existing standards such as the Indonesian Classification Bureau (BKI). The training is carried out using presentation methods, demonstrations, and hands-on practice. To measure achievement, a questionnaire was filled out before and after the training. The results of the questionnaire showed an increase in the knowledge of ship design training participants. Before the training, the average knowledge of the participants was 26% in understanding ship design and 33% in understanding ship resistance analysis, then increased to an average of 76% for understanding ship design and 77% for ship resistance analysis after being given training. Keywords: design; craftsmen; wooden ships; ship characteristics
Energy Consumption Analysis on Ginger Extract Powder Mixer Machine Sarwi Asri; Prima Astuti Handayani; Djuniadi Djuniadi; Hanif Hidayat; Aditya Maulana; Muhammad Zhafran Dewantara; Siti Thoifatun Najiah
VANOS Journal of Mechanical Engineering Education Vol 9, No 2 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v9i2.28785

Abstract

Ginger extract powder is a popular product in the beverage and health industry, requiring careful processing to produce high-quality results. This study aims to determine the efficiency of the stirring blade design on the ginger extract powder stirring machine. The intensive stirring process can lead to faster wear of the blades, making the selection of suitable materials crucial. The research was conducted through direct observation at UKM Bekti Pertiwi. The data collection process was structured to capture both quantitative data: 1) Energy consumption: energy used by the machine was measured in kilowatt-hours (kWh) using a standardized electricity meter, and 2) Cycle time: the time for a full cycle was recorded, from material input to the completion of the stirring process. A controlled sample of 2 kg of ginger essence was used in each test to standardize conditions and ensure consistent results. The sample size was chosen based on typical batch sizes processed by SMEs, aiming to represent common production volumes. The ginger essence sample was prepared with a standardized consistency and viscosity to reduce variability and ensure repeatability across tests. The stirring blade samples were manufactured from stainless steel with a Teflon coating, selected due to its corrosion resistance and durability in acidic environments. Blade dimensions were set to 504 mm in diameter and 3 mm in thickness, based on initial design research suggesting these dimensions as optimal for the desired mixing efficiency and wear resistance. Each test was conducted under the same operational settings, including motor speed and cycle duration, to maintain uniformity in testing conditions. Results indicate that a combination of stainless steel and Teflon in the stirring blades provides optimal performance, with energy consumption reaching 0.1072 kWh for 2 kg of ginger extract. The electricity cost for one production cycle is IDR 144.93. These findings can be used for future production planning, as well as to improve operational efficiency and the quality of ginger extract products.
Effectiveness of Peer Teaching Learning Models in Lathe Machinery Practice Courses for Mechanical Engineering Education Program Students Sarwi Asri; Hanif Hidayat; Muhammad Fariz Nasrullah
VANOS Journal of Mechanical Engineering Education Vol 9, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v9i1.25842

Abstract

The peer teaching learning model provides an opportunity for students to give each other knowledge to their peers. Peer teaching is a student-centred learning method. The purposes of this study are (1) to learn about the competence of students’ lathe practice after applying the learning model of peer teaching and (2) to know about the improvement of the competency of students’ lathe practice after applying the peer-teaching learning model. The method used in this research is quasi-experimental. The sample used in this research was 41 students of the Practical Class from the Mechanical Engineering Education Study Program. The data analysis used is normality test, homogeneity test, t-test, and N-Gain test. The results of the research show that (1) the competence of lathe practice of the students who apply a peer teaching learning model is in moderate categorized and (2) the application of a peer learning model is effective to improve the lathe practical competence of the students.
Co-Authors Abdurrahman Abdurrahman Aditya Maulana Aldias Bahatmaka Andi Abdullah Ghyferi Djuniadi Djuniadi Fiqri Fadillah Fahmi Fitriyana, Deni Fajar Imanu Danar Herunandi Iskandar, Ranu Muhammad Fariz Nasrullah Muhammad Yusuf Wibowo Muhammad Zhafran Dewantara Prima Astuti Handayani Rafif Dimas Pratama Rizki Setiadi Rizqi Fitri Naryanto Sarwi Asri Sarwi Asri Siti Thoifatun Najiah