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All Journal Jurnal Rekayasa Mesin Conference on Innovation and Application of Science and Technology (CIASTECH) INTEK: Jurnal Penelitian Jurnal Energi dan Teknologi Manufaktur Otopro G-Tech : Jurnal Teknologi Terapan Jurnal Pengabdian Polinema Kepada Masyarakat Journal of Engineering and Applied Technology Eksergi: Jurnal Teknik Energi Jurnal Pengabdian Kepada Masyarakat Ceria Jurnal Pengabdian Kepada Masyarakat Journal of Evrimata: Engineering and Physics J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Muzaki, Mochamad
Politeknik Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Social Sciences Other

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OPTIMASI AERODINAMIKA BODI MOBIL HEMAT ENERGI KEN DEDES ELECTRIC EVO 3 MENGGUNAKAN METODE COMPUTATIONAL FLUID DYNAMICS (CFD) Fakhruddin, Muhammad; Wicaksono, Hangga; Baananto, Fauzan; Firmansyah, Hilmi Iman; Sari, Nurlia Pramita; Muzaki, Mochamad; Akbarsyah D, Khelvindra Rizky; Hardyanto, Noveri Dwi
Eksergi Vol. 17 No. 1 (2021): JANUARI 2021
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (747.999 KB) | DOI: 10.32497/eksergi.v17i1.2219

Abstract

Aerodynamics is a branch of science that discusses the movement of an object in the air. Aerodynamics comes from the words aero = air and dynamics = force of motion. The study of air forces is a branch of fluid mechanics. This study is a continuation of the study of hydrodynamics, where the science of the motion of air has a close relationship with other sciences. Physics, mathematics, mechanics, meteorology and others are branches of science that are closely related to aerodynamics. Where in the science of aerodynamics, it discusses the principle of stationary air, specifically about the changes experienced by the air when there is a change in geometry. In this study, CFD analysis was carried out to inspect and optimize the airflow through the energy-efficient car body "Ken dedes Evo 3" Malang State Polytechnic to participate in energy-efficient car competitions by following the regulations and packaging requirements in energy-efficient car contests. The aerodynamic analysis of the energy-efficient car was carried out using the ANSYS simulation software. This aerodynamic research aims to reduce the drag coefficient and lift coefficient of energy-efficient cars. In the end, the energy-efficient car Ken Dedes Electric Evo 3 has an improved drag coefficient of 0.03 and a lift coefficient of 0.034. This is obtained from the simulation only on the car body.
Analisis Penerapan Quality Function Deployment (QFD) sebagai Metode Pengembangan Produk Mesin Perajang Apel untuk Keripik Buah Kurniawan, Yuda Junaedi; Muzaki, Mochamad; Sari, Nurlia Pramita; Firmansyah, Hilmi Iman; Takwim, R.N. Akhsanu
Jurnal Rekayasa Mesin Vol. 19 No. 1 (2024): Volume 19, Nomor 1, April 2024
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v19i1.4670

Abstract

Perajangan merupakan proses paling penting dalam menentukan kualitas produk keripik buah apel yang akan dihasilkan. Sejalan dengan hal tersebut, hasil rajangan sangat bergantung pada kondisi alat perajang maupun keahlian dari penggunanya. Para produsen keripik buah apel di Desa Tulungrejo Kecamatan Bumiaji Kota Batu masih menggunakan alat perajang manual yang mempunyai beberapa kekurangan. Sehingga perlu adanya pengembangan untuk menghasilkan performa mesin perajang yang sesuai dengan kebutuhan produsen tersebut. Penelitian ini bertujuan untuk mengembangkan mesin perajang buah apel sesuai dengan Voice of Customer (VoC) atau kebutuhan dan keinginan produsen keripik buah apel. Metode pengembangan yang digunakan adalah Quality Function Deployment (QFD) dengan alat bantu representatif   berupa matriks House of Quality (HoQ). Di dalam HoQ, customer berharap mesin yang dikembangkan dapat menghasilkan tebal rajangan sesuai standar (3-5 mm) serta memiliki kemampuan yang lebih baik dari alat yang sudah ada disana. Dari hasil concept screening, terpilih konsep dengan kombinasi putaran rpm diatur menggunakan dimmer, ketebalan rajangan diatur dengan baut tekan, tuas pengarah menggunakan pegas tarik dan model mesin tipe horizontal. Mesin ini dirancang mempunyai dimensi minimalis yaitu sebesar 616 x 430 x 430 mm serta dengan komponen yang sederhana sesuai customer requirements pada HoQ. Kapasitas dari mesin ini sebesar 80 kg/jam dengan konsumsi daya listrik sebanyak 150 watt.
DESAIN DAN PEMBUATAN TULISAN IDENTITAS GEDUNG BERHURUF 3 DIMENSI DARI STAINLESS STEEL Hadi, Syamsul; Muzaki, Mochamad; Irawan, Bambang; Purwoko, Purwoko; Buwono, Haris Puspito; Murdani, Anggit
Jurnal Pengabdian kepada Masyarakat Vol. 11 No. 1 (2024): JURNAL PENGABDIAN KEPADA MASYARAKAT 2024
Publisher : P3M Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/abdimas.v11i1.5254

Abstract

This community service aims to increase clarity and beauty for all guests who head to the hall in RW 06 Kelurahan Tasikmadu Malang. The method used is deliberation with residents and building managers to determine the design/technique of the construction model for the posts to be installed in the Hall, making posts from stainless steel in the form of plates (stainless steel) and installing stainless steel letters on the west side of the outer wall of the Hall, assessing the robustness and the beauty of the placement, and submission to the Head of RW 06 where the installation of the writing is in his working area. By installing stainless steel letters in the Hall, it is hoped that identity can be made clear to all guests or all parties who pass in front of it. Thus there is a synergy between State Polytechnic of Malang and community members in obtaining satisfaction of the usefulness of assistance and the beauty of the environment in RW 06 Tasikmadu, Lowokwaru, Malang city.
Simulation of The Effect of Blank Geometry Toward The Mecanical Properties of Strains And Stress on Deep Drawing Process Using Material Aluminum 7075 Pratama, Adjie Yoga; Widyasari, Auzini; Fakhruddin, Muhammad; Muzaki, Mochamad; Firmansyah, Hilmi Iman
Journal of Evrímata: Engineering and Physics Vol. 01 No. 02, 2023
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.27

Abstract

Using Aluminum 7075 at a high temperature of 50 degrees Celsius, this study examines the effect of various blank geometry angles on the mechanical properties of strain and stress during the deep drawing process. This study systematically examines the impact of different blank geometry angles on the deformation behavior, strain distribution, and stress concentration during the deep drawing process of Aluminum 7075 sheet using a numerical simulation approach. To describe the behavior of the material against the effect of the angle on the pressure in the simulation taking into account realistic parameters, the main point is the result of the pressure treatment of the predetermined angle on the results of the strains and stresses created. The obtained results, which include strain distribution, stress concentration, and overall mechanical reaction, provide important information for the choice of the best blank geometry angle in deep drawing of Aluminum 7075 at high temperatures. This research contributes to the advancement of process optimization in the metal forming industry, providing a solid foundation for improving efficiency and quality in deep drawing operations involving high-strength aluminum alloys.
Co-Authors Achmad Burhanudin Achmad Rijano Agus Hardjito Agus Harijono Akbarsyah D, Khelvindra Rizky Akhmad Faizin Akhmad Farid Andita N.F. Ganda Anggit Murdani Anwar, Abdul Muid Bambang Irawan BAYU PRANOTO Danang Febriyanto Elka Faizal Endi Sutikno Faizal, Elka Farida, Nike Nur Fauzan Baananto Hangga Wicaksono Hardyanto, Noveri Dwi Haris Puspito Buwono Hilmi Iman Firmansyah Imam Mashudi Imam Mashudi, Imam Kurniawan, Yuda Junaedi Lisa Agustriyana Luthfi - Hakim Maulana, Firza Nurdin Moh. Nasir Hariyanto Muhammad Fakhruddin Nike N.F Nova Risdiyanto Ismail Nugroho, Pipit Wahyu Nurchajat, Nurchajat Nurlia Pramita Sari Paranata, Rake Aji Nugraha Pradana, Yanuar Rohmat Aji Pramita Sari, Nurlia Pranoto, Bayu Pratama, Adjie Yoga Pratama, Rico Wahyu Purwoko Purwoko Purwoko Putu Hadi Setyorini R.N. Akhsanu Takwim, R.N. Akhsanu Sai'in, Ali Samsul Hadi Sari, Nurlia Pramita Subagiyo Subagiyo Sulistyono Sulistyono Sulistyono Sulistyono Syamsul Hadi Wicaksono, Hangga Widyasari, Auzini Wiganata, Gading Wihardias, Angga Faisal