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All Journal Conference on Innovation and Application of Science and Technology (CIASTECH) JOURNAL OF SCIENCE AND APPLIED ENGINEERING Logic : Jurnal Rancang Bangun dan Teknologi Mekanika: Majalah Ilmiah Mekanika Jurnal Energi dan Teknologi Manufaktur Otopro G-Tech : Jurnal Teknologi Terapan Jurnal Pengabdian Polinema Kepada Masyarakat Logic : Jurnal Rancang Bangun Dan Teknologi
Hangga Wicaksono
Jurusan Teknik Mesin, Politeknik Negeri Malang, Kota Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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SIMULASI PENGARUH ORIENTASI SUDUT SERAT TERHADAP TEGANGAN TARIK LAMINATED COMPOSITE Hilmi Iman Firmansyah; Sulistyono Sulistyono; Hangga Wicaksono
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 01 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i01.75

Abstract

Composite is a material consisting of a mixture or combination of two or more materials, either micro or macro, where the properties of the material are different in shape and chemical composition from the original substance. In this study, the composite was tested to determine the tensile strength using simulation. Composite material modeling consists of carbon fiber as reinforcement and epoxy resin as the matrix. Then the composite material was given a uniaxial loading with a loading value of 50 N. By using variations in the orientation of the fiber angle 45ᵒ/90ᵒ/-45ᵒ, 45ᵒ/90ᵒ/-45ᵒ and 60ᵒ/45ᵒ/-60ᵒ. This study aimed to determine the effect of fiber angle orientation on tensile strength, maximum deformation and location of maximum stress on carbon fiber composites. The best composite design is the composite with fiber angle orientation of 45ᵒ/90ᵒ/-45ᵒ with a tensile stress value of 3.6 MPa and the smallest deformation of 0.0644 mm.
Pengaruh Perlakuan Permukaan Pengikatan Terhadap Sifat Mekanik Komposit Serat Kaca Dengan Laminasi Almunium Muhammad Fakhruddin; Maskuri Maskuri; Elka Faizal; Bayu Pranoto; Hangga Wicaksono; Hilmi Iman Firmansyah
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.79

Abstract

Fiber metal laminates or commonly known as fiber metal laminates (FML) are composite structures made by combining 2 layers of material as the outer layer with the core material. The outer layer of this composite is called the laminate. Generally, laminated composites are produced by joining techniques under solid-state conditions, such as diffusion bonding, extrusion, friction-stir welding, and roller welding. In this study, glass fiber composites with aluminum lamination were made using the vacuum assisted resin infusion (VARI) method, using epoxy resin. The surface treatment of the aluminum laminate was carried out with the direction of roughing at certain angles and variations of the surface roughening of the laminate to test the mechanical bonding between the composite and the laminate. Mechanical bonding testing using three-point bending test method (three-point bending) and buckling test. The expected result is that by surface treatment on aluminum laminate, the best mechanical bonding to composites with glass fiber is obtained. The TKT to be achieved from this research is TKT level 3, which is an analytical study that supports the prediction of the performance of the effect of the bonding surface treatment on the mechanical properties of glass fiber composites with aluminum lamination.
The Effect of Mg Adding in Recycled Aluminum Casting on Tensile Strength and Microstructure Syamsul Hadi; Ahmad Hailala Nur Aziz; Pipit Wahyu Nugroho; Muhammad Akhlis Rizza; Hangga Wicaksono
Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 3 (2020): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v20i3.2151

Abstract

The problems faced are aluminium (Al) waste from industries that damage the environment and scarcity of Al raw materials that need to be recycled from used Al. The research objective was to determine the effect of adding magnesium (Mg) to used Al casting on the tensile strength and microstructure and to determine the comparison of the tensile strength of the Al material used by the piston to the brake lining and drum of motorcycles. The research method includes casting Al used pistons, brake lining and drum, testing the tensile strength and microstructure due to the addition of 0.1; 0.2; 0.5 and 1.0% by weight Mg to the tensile strength and microstructure. The results showed that the addition of Mg 0.5% by weight could increase the tensile strength of 92.96% from 71 MPa to 137 MPa for brake lining as the optimum value which further decreased the tensile strength by 19.7% at the addition of 1% Mg to 110 MPa. Drum material also experienced an increase in tensile strength of 33.71% from 89 MPa to 119 MPa as the optimum value where the tensile strength decreased by 5.88% for the addition of 1% Mg to 112 MPa. The two values of the tensile strength of the brake lining and drum components are lower than those of the piston component valued at 147 MPa, and with the addition of Mg, Mg2Si is formed which can reduce the porosity of the microstructure, thereby increasing its strength.
PENINGKATAN KAPASITAS PRODUKSI DENGAN TEKNOLOGI MIXING DOUBLE ATTACK DAN PEMASARAN BERBASIS WEBSITE PADA INDUSTRI KERUPUK SINGKONG (SARI KENTANG) DI DESA DADAPREJO-JUNREJO- BATU Sugeng Hadi Susilo; Gumono Gumono; Agus Setiawan; Hangga Wicaksono; Zahratul Jannah
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2021 "Kesiapan Indonesia Dalam Menghadapi Krisis Energi Global"
Publisher : Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kondisi perekonomian saat pandemi ini sungguh merosot tajam, hal ini di tandai dengan rendahanya daya beli masyarakat. Hal ini tentunya disebabkan lapangan kerja yang semakin berkurang, sedangkan tenaga produktif bertambah sehingga penganguran semakin bertambah. Untuk menumbuhkan dan meningkatkan ekonomi rakyat, perlu dilakukan penguatan pada industri kecil dan menengah. Salah satunya adalah industry keripik tepung singkong UMKM TIGA DIVA. Tujuan dari pengabdian ini adalah meningkatkan produktivitas kerupuk singkong. Metode implementasi dan pendekatan untuk memecahkan masalah produksi mitra UMKM. Langkah pertama adalah penyesuaian. Dari koordinasi dan diskusi yang berlangsung, lahir enam program strategis untuk mengatasi permasalahan di bidang produksi yaitu: a. Penentuan spesifikasi mesin pengaduk adonan, b. Pengadaan mesin pengaduk adonan. c. Uji coba mesin pengaduk adonan. D. Pelatihan dan pendampingan mesin pengaduk. Sedangkan untuk permasalahan bidang pemasaran, diperoleh program strategis penyelesaian permasalahan bidang pemasaran yaitu perancangan pemasaran berbasis online melalui website dan marketplace. Berdasarkan rancangan penilaian kegiatan, Hasil pengabdian menggambarkan tahapan kegiatan pengabdian penerapan iptek dan pencapaian indikator keberhasilan: Tim layanan menyinkronkan jadwal dan membuat daftar alat dan bahan yang digunakan oleh masyarakat pembuat keripik singkong. Berdasarkan hasil penyesuaian tersebut, tim pengabdian bersiap untuk mendukung pembuatan mesin pengaduk, web and pemasaran, dan pengelolaan UMKM. Lama waktu pengadukan tanpa mesin pengaduk untuk kapasitas 50 kg dibutuhkan 6 orang dengan waktu sekitar 30 menit, sedangkan setelah menggunakan mesin pengaduk hanya butuh 3 orang dengan waktu sekitar 5 menit. Sehingga dapat meningkatan produktifitas umkm meningkat secara signifikan sekitar 2,85 kali dari sebelum adanya mesin pengaduk.
Initial Rotation Characteristic Investigation of a Hybrid Savonius - Darrieus Wind Turbine using 6 DOF Computational Fluid Dynamics Hangga Wicaksono; Sugeng Hadi Susilo; Bayu Pranoto; Muhammad Fakhruddin
Mekanika: Majalah Ilmiah Mekanika Vol 20, No 1 (2021): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v20i1.47577

Abstract

The inconsistency of the wind flow considered as one of the factors which tend to decrease the performance of the wind turbine. This paper proposes a further analysis of the initial rotation characteristic of a hybrid Savonius - Darrieus wind turbine. The addition of the Darrieus blade intends to increase the aerodynamic stability of the overlapping Savonius turbine. This study implements 2D CFD transient analysis using the 6DOF methods in 00, 300, 600, and 900 Darrieus blade position along with 2 m/s, 4 m/s, and 6 m/s wind speed variations. The results of the aerodynamic analysis show that the location of the Darrieus 300 turbine provides the greatest initial repulsion, especially when the turbine rotation is above 900, the position of the Darrieus blade can provide additional impulse force when the Savonius turbine tends to be passive. This effect occurs more significant at higher wind speeds. Savonius with 3-blade modification has a more stable level of force distribution than the 2-blade modification, although the value is smaller. This shows that the 3-blade Savonius provide a higher stability of angular velocity development.
Surface Roughness and Fiber Angular Orientation Analysis Toward Laminated Composite Crack Propagation Hilmi Iman Firmansyah; Bayu Pranoto; Chandra Gunawan; Hangga Wicaksono; Muhammad Fakhruddin
Mekanika: Majalah Ilmiah Mekanika Vol 20, No 1 (2021): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v20i1.48188

Abstract

Composite is a material that consisting of two or more materials, either micro or macro, where the properties of the material differ in shape and chemical composition from the original substance. In this study, fatigue testing of fiber metal composites was carried out to determine the rate of crack propagation so that the age of the fiber metal composite specimen was known. The independent variable in this research is the angular orientation of the carbon fiber and the surface roughness of the aluminum with the dependent variable response is the bridge crack rate. The manufacture of fiber metal laminates specimens uses the Vacuum Resin Infuse (VARI) method, which uses a vacuum pump as a means to flow the resin from the reservoir to the mold. This method is used to minimize the occurrence of air bubbles trapped on the specimen which causes porosity defects which will reduce the strength of the metal laminates specimen itself. Fatigue testing is performed using the stress amplitude method. That is, the value of the load when the tensile test is one third of the tensile strength. After the fatigue test was carried out, the results were obtained on specimens with an angular orientation of 0/90 ° fibers, the crack propagation rate slowed down with a cycle value of 90000 in specimens with a surface roughness value of 2.128 µm then decreased cycles on specimens with a value of 2.887 µm, namely 11000 cycles.
Effect of Material Type and Minimum Diameter of Specimens on the Fatigue Life Syamsul Hadi; Anggit Murdani; Sudarmadji; Andhika Erlangga Setiawan Putra; Bambang Irawan; Hangga Wicaksono; Sza Sya Monica Valeria; Nila Alia
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 21 No. 3 (2021): November
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2167.849 KB) | DOI: 10.31940/logic.v21i3.205-211

Abstract

The obstacle faced during the fatigue test is the waiting time which is quite long and inefficient, especially for test specimens made of ductile metal with waiting times of up to several days. The research method includes reducing the specimen radius to obtain a flexural stress approaching 400 MPa which was originally 229 MPa from a radius of 254 mm to 240 mm with the results of turning the original specimen obtained a minimum diameter of 8.6 mm is reduced to 7.3 mm at a maximum loading of 10 kg. Results of the research are brass specimens C3604BD type with a minimum diameter of 8.6 mm at a flexural stress of 298 MPa showing a fatigue life of 2455546 cycles with a test duration of 1754 minutes and a minimum specimen diameter of 7.3 mm at a flexural stress of 299 MPa showing a fatigue life of 684311 cycles with a test duration of 489 minutes which means that with a minimum specimen diameter of 7.3 mm the fatigue life is 3.59 times shorter than a minimum specimen diameter of 8.6 mm. Meanwhile, for aluminium AA1101 type with a minimum specimen diameter of 7.3 mm at a flexural stress of 182 MPa, the fatigue life is 422117 cycles with a test duration of 278 minutes and with a minimum specimen diameter of 8.6 mm at a flexural stress of 183 MPa, the fatigue life is 389232 cycles with a test duration of 302 minutes which means that with a minimum specimen diameter of 7.3 mm the fatigue life is 1.05 times shorter than the minimum specimen diameter of 8.6 mm or almost the same.
Pelatihan Instalasi Dan Penataan Sistem Tata Suara Bagi Mushola Al-Khoir, Di RT 01/ RW 09, Desa Tegalweru, Kecamatan Dau, Kabupaten Malang Muhammad Fakhruddin; Imam Mashudi; Mochamad Muzaki; Hangga Wicaksono; Nurlia Pramita Sari; Bayu Pranoto
Jurnal Pengabdian Polinema Kepada Masyarakat Vol. 9 No. 2 (2022): Jurnal Pengabdian Polinema Kepada Masyarakat
Publisher : UPT Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jppkm.v9i2.173

Abstract

Indonesia merupakan negara muslim terbesar di dunia, dengan jumlah 264 juta penduduk yang tersebar di berbagai pulau. Dengan mayoritas penduduk Indonesia yang beragama muslim maka jumlah tempat peribadatan atau masjid dan mushola jumlahnya sebanding dengan penduduknya. Saat ini terdapat sekitar 250 ribu masjid dan 550 ribu mushola. Namun dari jumlah tersebut tercatat ribuan masjid masih mempunyai peralatan dan penataan sistem tata suara yang buruk. Mushola Al-Khoir yang terletak di Desa Tegalweru, Kecamatan Dau, Kabupaten Malang memiliki system tata suara yang kurang baik, padahal system tersebut harus rutin digunakan untuk kegiatan Mushola Al-Khoir sehari-hari, seperti mengumandangkan adzan, memberikan pengumuman terkait dengan kegiatan sosial, pengajian, dan sebagainya. Pada pengabdian ini diusulkan pelatihan instalasi dan penataan sistem tata suara di Mushola Al-Khoir, Desa Tegalweru, Kecamatan Dau, Kabupaten Malang. Diharapkan dengan adanya pelatihan dan penataan sistem tata suara ini kualitas suara yang dihasilkan semakin bagus sehingga membuat nyaman masyarakat yang ingin beribadah. Selain itu, dengan adanya pelatihan ini diharapkan ketika system tata suara rusak, pengurus mushola dapat memperbaikinya sendiri.
Pengaruh Fraksi Volume Terhadap Sifat Mekanis Komposit Forged Fiberglass Metode Compression Mould Muhammad Fakhruddin; Imam Mashudi; Mochamad Muzaki; Hilmi Iman Firmansyah; Bayu Pranoto; Hangga Wicaksono
Jurnal Energi dan Teknologi Manufaktur Vol 5 No 02 (2022)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v5i02.134

Abstract

Fiber-reinforced composites can be classified into two parts, namely short fiber composites and long fiber composites. Long fibers are stronger than short fibers. Long fiber (continuous fiber) is more efficient in laying than short fiber but short fiber is easier to lay than long fiber. Fiber length affects the processability of the fiber composite. Judging from the theory, long fibers can continue the load and stress from the stress point to the other fiber. In this study, the volume of chopped glass fiber composite with random matrix direction was varied with respect to polyester resin. Making forged fiberglass composites with the press mold method to minimize the occurrence of air bubbles during the composite molding process. Testing the mechanical properties of the forged fiberglass composite using the three-point bending and tensile testing methods. The expected result is the variation of the volume fraction of random chopped glass fiber to polyester resin. The TKT to be achieved from this research is TKT level 3, which is an analytical study that supports the prediction of the performance of the effect of the volume fraction between glass fiber and resin on the mechanical properties of the tensile and bending strength of forged glass fiber composites
Analisis Kapasitas Spesifik Simetris dan Asimetris Coin Cell Superkapasitor menggunakan Reduksi Graphene Oksida dan Doping Boron Graphene Nurlia Pramita Sari; Muhammad Fakhruddin; Mochamad Muzaki; Hangga Wicaksono; Andita N.F. Ganda; Yanuar Rohmat Aji Pradana
G-Tech: Jurnal Teknologi Terapan Vol 7 No 2 (2023): G-Tech, Vol. 7 No. 2 April 2023
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.88 KB) | DOI: 10.33379/gtech.v7i2.2344

Abstract

Superkapasitor banyak diteliti karena kepadatan dayanya yang tinggi, siklus hidup yang panjang, dan fungsinya yang memiliki output daya tinggi dan yang memiliki penyimpanan energi tinggi. Graphene memiliki luas permukaan spesifik yang besar dan konduktifitas elektrik yang tinggi sehingga baik digunakan sebagai elektroda pada coin cell superkapasitor. Boron dinilai sebagai unsur kimia yang baik sebagai bahan dopan. Artikel ini bertujuan untuk menganalisa penggunaan reduksi graphene oksida dan doping boron graphene oksida sebagai bahan elektroda dari asimetris dan simetris coin cell superkapasitor. Metode yang digunakan adalah eksperimental dengan reduksi graphene oksida dan doping boron graphene yang digunakan sebagai katoda dan anoda coin cell superkapasitor. Pereduksian dilakukan dengan proses pirolisis dalam atmosfer argon dan hidrogen pada temperatur tinggi. Hasilnya menunjukkan graphene dapat didoping menggunakan boron dan dapat digunakan sebagai elektroda (katoda dan anoda) pada coin cell simetris dan asimetris. Nilai kapasitas coin cell asimetris merupakan nilai pertengahan dari coin cell simetris dari bahan katoda dan anodanya.
Co-Authors Agus Setiawan Ahmad Hailala Nur Aziz Aji Tisa Akhlis Rizza, Muhammad Akhmad Faizin Andhika Erlangga Setiawan Putra Andita N.F. Ganda Anggit Murdani Bagus Wahyudi Bambang Irawan BAYU PRANOTO Bayu Pranoto Budi Eko Prasetyo Chandra Gunawan Danang Febriyanto Elka Faizal Gumono Hilmi Iman Firmansyah Imam Mashudi Kris Witono Maskuri Maskuri Muhammad Fakhruddin Mukhammad Fakhruddin Muzaki, Mochamad Nila Alia Nugroho, Pipit Wahyu Nurlia Pramita Sari Pradana, Yanuar Rohmat Aji Sabina Aisyah Susanto Sudarmadji Sugeng Hadi Susilo Sulistyono Sulistyono Syamsul Hadi Syamsul Hadi Sza Sya Monica Valeria Zahratul Jannah