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All Journal Transmisi JUPITER (Jurnal Pendidikan Teknik Elektro) Jurnal Taman Vokasi Abdimas Dewantara at-tamkin: Jurnal Pengabdian kepada Masyarakat Jurnal ULTIMA InfoSys Jurnal Teknik Mesin Indonesia STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering G-Tech : Jurnal Teknologi Terapan Jurnal Pendidikan Teknik Mesin Undiksha Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Abdi Masyarakat Saburai (JAMS) TRANSFORMASI : JURNAL PENGABDIAN PADA MASYARAKAT Indonesian Community Journal Journal of Mechanical and Electrical Technology Jurnal Andalas: Rekayasa dan Penerapan Teknologi Jurnal Pengabdian Masyarakat Jurnal MEKOM: Media Komunikasi Pendidikan Kejuruan
Rohman, Mojibur
Universitas Islam Raden Rahmat
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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SOSIALISASI PENERAPAN AGROFORESTRY DI BAPEDA PACITAN SEBAGAI PEMENUHAN CO-FIRING PLTU Darmawan, Kiki; Permadi, Luchyto Chandra; Meditama, Ratna Fajarwati; Tjiptady, Bella Cornelia; Asshidiqi, Faisol Khoufi; Rohman, Mojibur; Zamzami, Muhammad Ana
BESIRU : Jurnal Pengabdian Masyarakat Vol. 2 No. 1 (2025): BESIRU : Jurnal Pengabdian Masyarakat, Januari 2025
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/7xpcs148

Abstract

Paris Agreement merupakan kesepakatan global yang monumental untuk menghadapi perubahan iklim, salah satu upaya menurukan iklim global melalui co-firing, co-firing merupakan program percepatan pengurangan emisi pada PLTU di seluruh Indonesia, dengan biomassa sebagai subtitusi batubara, dalam pelaksaan program co-firirng terdapat kendala stok biomassa di PLTU Pacitan, dari permasalahan kebutuhan stok biomassa memerlukan kerjasama dengan pihak BAPEDA pacitan.Sosialisasi penerapan lahan biomassa sebagai bahan bakar PLTU dengan menerapkan sistem pertanaman lorong  dengan penggunaan 5% dari luas hutan rakyat mengahsilkan 194.320 ton biomassa dengan nilai keekonomian Rp 389.210.323.370,40, dari sosislisasi ini dapat menaikan perekonomian Pacitan.
ST41 Tensile Strength Analysis of Spiral Groove Welding with Three Current Variations Rohman, Mojibur; Saepuddin, Ahmad; Fardana, Mochamad Adhi
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 8 No. 2 (2020)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v8i2.27590

Abstract

Welding is one of the important aspects in the process of joining metal, iron or steel. This study aims to determine the effect of SMAW welding techniques in spiral grooves with variations in currents of 100 Amperes, 110 Amperes and 120 Amperes to the tensile strength of St 41 steel. This research is an experimental study conducted in two places namely BLKI Singosari, Malang and Faculty of Engineering, ITN Malang, East Java. The results showed that the current strength and electrode flow in welding have an influence on the tensile strength even though the results are not significant. Average tensile strength at 100 Amperes current is 46.75 Kgf / mm², at 110 Amperes current is 44.87 Kgf / mm², and at 120 Amperes current is 43.80 Kgf / mm². The results of this test indicate that the variation of the current in SMAW welding with the spiral groove method influences the tensile strength of St 41 steel. Based on the findings in this study it can be concluded that the highest tensile strength value of 46.75 Kgf / mm² occurs in welding spiral grooves with strong currents of 100 Ampere. Keywords : SMAW welding; spiral groove, strong current, tensile strength; ST41.ReferencesAnwar, B. (2017). Analisis kekuatan tarik hasil pengelasan posisi bawah tangan dengan perbedaan variasi kuat arus listrik pada baja st 42. Teknologi, 16 (1), 18-24.Budiman, H. (2016). Analisis pengujian tarik (tensile test) pada baja st37 dengan alat bantu ukur load cell teknik mesin. J-Ensitec, 3(1), 9-13.Daryanto. (2012). Teknik Las. Bandung: AlfabetaGunawan, Y. Endriatno, N. Anggara, B, H. (2017). Analisa pengaruh pengelasan listrik terhadap sifat mekanik baja karbon rendah dan baja karbon tinggi. Enthalpy Jurnal Ilmiah Mahasiswa Teknik Mesin, 2(1), 2502-8944.Imam, P, M. dan Sarjito, J, S. (2012). Analisis kekuatan sambungan las smaw (shielded metal arc welding) pada marine plate st 42 akibat faktor cacat porositas dan incomplete penetration. KAPAL, 5(2), 102-113.Kolo, J.M., Nugraha, I.N.P. & Widayana, G. (2017). Pengaruh variasi arus terhadap kekuatan impact dan kekerasan material st 37 menggunakan proses pengelasn gas tungsten arc welding (GTAW). Jurnal Pendidikan Teknik Mesin Undiksha, 8(2), 1-10.Kurniawan, S, A., Solichin & Puspitasari, P. (2014). Analisis kekuatan tarik dan struktur mikro pada baja st.41 akibat perbedaan ayunan elektroda pengelasan SMAW. Jurnal Teknik Mesin, 22(2), 1-12.Mohruni, A, S. dan Kembaren, B, H. (2013). Pengaruh variasi kecepatan dan kua arus terhadap kekerasan, tegangan tarik, strukturmikro baja karbon rendah dengan elektroda e6013. Jurnal Rekayasa Mesin, 13(1), 1-8.Pranawan, D, F, B. dan Suwito, D. (2016). Pengaruh teknik pengelasan alur spiral, alur zig – zag, dan lurus pada arus 85 a terhadap kekuatan tarik baja st 41. Jurnal Teknik Mesin. 4(2), 29 – 32.Siswanto & Amri, S. (2011). Konsep dasar teknik las. Edisi 1. Jakarta : PT. Prestasi Pustakaraya.Weman, K. (2003). Welding processes handbook. Woodhead Publishing Limited, Cambride.Widharto, S. (1996). Petunjuk kerja las. Jakarta: Pradnya ParamitaWiryosumarto. 2000. Teknologi pengelasan logam. Jakarta: PT. Pradnya Paramita.
Simulasi Pengaruh Waktu dan Gerak Terhadap Desain Implan Sendi Pinggul Putra, Agus Dwi; Rohman, Mojibur; Sulaiman, Mochamad
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 9 No. 1 (2021)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v9i1.28885

Abstract

Simulasi desain implan sendi pinggul bertujuan untuk menganalisis total deformasi maksimum, tegangan prinsipal maksimum, dan tegangan geser maksimum dengan kombinasi variasi waktu, gerakan, dan pembebanan. Simulasi memungkinkan suatu objek diujicobakan secara visual sebelum diproduksi sebagai purwarupa. Fungsi dari simulasi adalah untuk meminimalisir terjadinya kegagalan dan untuk memangkas biaya produksi. Sebelum memulai simulasi suatu objek perlu dibuatkan desain. Desain dalam penelitian ini menggunakan software CAD yakni Inventor 2014, sedangkan analisis metode elemen hingga dalam desain implan memanfaatkan simulasi ANSYS 18.1. Analisis metode elemen hingga didasarkan pada aktivitas berjalan, melompat, dan menuruni tangga selama kurun waktu 0 detik hingga 4,5 detik. Hasil simulasi menunjukkan bahwa desain implan sendi pinggul menghasilkan 4079 nodal, 2157 Elemen, dan total deformasi maksimum sebesar 0,097 mm (berjalan), 0,2 mm (melompat), dan 0,11 mm (menuruni tangga). Tegangan prinsipal maksimum adalah 32 MPa (berjalan), 66,96 MPa (melompat), dan 73,93 MPa (menuruni tangga). Tegangan geser maksimum adalah 19,74 MPa (berjalan), 41,28 MPa (melompat), dan 45,58 MPa (menuruni tangga).Kata kunci: simulasi; implan sendi pinggul; metode elemen hingga; Mg Alloy.The simulation of the hip joint implant design aims to analyze maximum total deformation, maximum principal stress, and maximum shear stress with a combination of variations in time, motion and loading. Simulation allows an object to be tested visually before being produced as a prototype. Function of simulation is to minimize the occurrence of failures and to cut production costs. Before starting to simulate an object a design needs to be made. The design in this study used CAD software, namely Inventor 2014, while the finite element method analysis in implant design used ANSYS 18.1 simulation. Finite element method analysis is based on walking, jumping and descending stairs over a period of 0 seconds to 4.5 seconds. Simulation results show that hip joint implant design produces 4079 nodals, 2157 elements, and a maximum total deformation of 0.097 mm (walking), 0.2 mm (jumping), and 0.11 mm (descending stairs). Maximum principal stresses are 32 MPa (walking), 66.96 MPa (jumping), and 73.93 MPa (descending stairs). Maximum shear stresses are 19.74 MPa (walking), 41.28 MPa (jumping), and 45.58 MPa (descending stairs).Keywords : Simulation; Hip Joint Implants; Finite Element Method; Mg AlloyDAFTAR RUJUKANAhmed, A., Hameed, P., Shaikh, F., Hussain, Z., Hussain, N., & Aslam, M. (2017). Simulation tools application for arti fi cial lighting in buildings. Renewable and Sustainable Energy Reviews, August, 0–1. https://doi.org/10.1016/j.rser.2017.10.035Boyd, D. D. (2016). General aviation accidents related to exceedance of airplane weight/center of gravity limits. Accident Analysis and Prevention, 91, 19–23. https://doi.org/10.1016/j.aap.2016.02.019Conlisk, N., Howie, C. R., & Pankaj, P. (2017). Computational modelling of motion at the bone–implant interface after total knee arthroplasty: The role of implant design and surgical fit. The Knee, 24(5), 994–1005. https://doi.org/10.1016/j.knee.2017.07.003Constantinou, M., Loureiro, A., Carty, C., Mills, P., & Barrett, R. (2017). Hip joint mechanics during walking in individuals with mild-to-moderate hip osteoarthritis. Gait and Posture, 53, 162–167. https://doi.org/10.1016/j.gaitpost.2017.01.017Gu, X., Shiflet, G. J., Guo, F. Q., & Poon, S. J. (2005). Mg–Ca–Zn Bulk Metallic Glasses with High Strength and Significant Ductility. Journal of Materials Research, 20(08), 1935–1938. https://doi.org/10.1557/JMR.2005.0245Guo, W., Cui, W., Shi, Y., Liu, J., & Song, B. (2016). Function failure and failure boundary analysis for an aircraft lock mechanism. Engineering Failure Analysis, 70, 428–442. https://doi.org/10.1016/j.engfailanal.2016.10.003Hagihara, K., Shakudo, S., Fujii, K., & Nakano, T. (2014). Degradation behavior of Ca – Mg – Zn intermetallic compounds for use as biodegradable implant materials. Materials Science & Engineering C, 44, 285–292. https://doi.org/10.1016/j.msec.2014.08.037Hutař, P., Poduška, J., Šmíd, M., Kuběna, I., Chlupová, A., Náhlík, L., Polák, J., & Kruml, T. (2017). Short fatigue crack behaviour under low cycle fatigue regime. International Journal of Fatigue, 103, 207–215. https://doi.org/10.1016/j.ijfatigue.2017.06.002Kiani Khouzani, M., Bahrami, A., & Eslami, A. (2018). Metallurgical aspects of failure in a broken femoral HIP prosthesis. Engineering Failure Analysis, 90(November 2017), 168–178. https://doi.org/10.1016/j.engfailanal.2018.03.018Lestari, F. P., Kartika, I., Sriyono, B., Puspiptek, K., Tangerang, S., & Banten, S. (2013). Pengaruh Waktu Milling Pada Paduan Mg-Ca-Zn-CaH 2 Untuk Aplikasi Implan.Liu, X., Guo, J., Bai, C., Sun, X., & Mou, R. (2015). Drop test and crash simulation of a civil airplane fuselage section. Chinese Journal of Aeronautics, 28(2), 447–456. https://doi.org/10.1016/j.cja.2015.01.007Longman, J., Veres, D., & Wennrich, V. (2018). Utilisation of XRF core scanning on peat and other highly organic sediments. Quaternary International, January, 0–1. https://doi.org/10.1016/j.quaint.2018.10.015Meischel, M., Hörmann, D., Draxler, J., Tschegg, E. K., Eichler, J., Prohaska, T., & Stanzl-Tschegg, S. E. (2017). Bone-implant degradation and mechanical response of bone surrounding Mg-alloy implants. Journal of the Mechanical Behavior of Biomedical Materials, 71, 307–313. https://doi.org/10.1016/j.jmbbm.2017.03.025Mutlu, I. (2018). Production and fluoride treatment of Mg-Ca-Zn-Co alloy foam for tissue engineering applications. Transactions of Nonferrous Metals Society of China (English Edition), 28(1), 1–8. https://doi.org/10.1016/S1003-6326(18)64644-8Riccio, A., Cristiano, R., Saputo, S., & Sellitto, A. (2018). Numerical methodologies for simulating bird-strike on composite wings. Composite Structures. https://doi.org/10.1016/j.compstruct.2018.03.018Saini, M. (2015). Implant biomaterials: A comprehensive review. World Journal of Clinical Cases, 3(1), 52. https://doi.org/10.12998/wjcc.v3.i1.52Šamec, B., Potrč, I., & Šraml, M. (2011). Low cycle fatigue of nodular cast iron used for railway brake discs. Engineering Failure Analysis, 18(6), 1424–1434. https://doi.org/10.1016/j.engfailanal.2011.04.002Saulacic, N., Bosshardt, D. D., Bornstein, M. M., Berner, S., & Buser, D. (2012). BONE Apposition To A Titanium-Zirconium Alloy Implant , As Compared To Two Other Titanium-Containing Implants. 273–288.Seguin, C., Blaquière, G., Loundou, A., Michelet, P., & Markarian, T. (2018). Unmanned aerial vehicles ( drones ) to prevent drowning ☆. Resuscitation, 127(January), 63–67. https://doi.org/10.1016/j.resuscitation.2018.04.005Shi, K. K., Cai, L. X., Chen, L., Wu, S. C., & Bao, C. (2014). Prediction of fatigue crack growth based on low cycle fatigue properties. International Journal of Fatigue, 61, 220–225. https://doi.org/10.1016/j.ijfatigue.2013.11.007Yatim, F. (2006). Penyakit Tulang dan Persendian (Arthristis atau Arthralgia). Pustaka Populer Obor.Zameer, S., & Haneef, M. (2015). Fatigue Life Estimation of Artificial Hip Joint Model Using Finite Element Method. Materials Today: Proceedings, 2(4–5), 2137–2145. https://doi.org/10.1016/j.matpr.2015.07.220Zander, D., & Zumdick, N. A. (2015). Influence of Ca and Zn on the microstructure and corrosion of biodegradable Mg-Ca-Zn alloys. Corrosion Science, 93(January), 222–233. https://doi.org/10.1016/j.corsci.2015.01.027 
Dukungan Keluarga dan Kesiapan Kerja di Kalangan Siswa SMK di Indonesia: Efek Mediasi dari Wawasan Dunia Kerja Rohman, Mojibur; ., Marji; Sudjimat, Dwi Agus; Sugandi, R Machmud
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 10 No. 1 (2022)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v10i1.43409

Abstract

Abstrak Kesiapan kerja siswa kejuruan di Indonesia menjadi salah satu isu penting yang terus dibahas. Hal tersebut dikarenakan lulusan pendidikan kejuruan tersebut masih menduduki posisi teratas untuk angka pengangguran dibandingkan tingkat pendidikan yang lain. Rendahnya kesiapan kerja di kalangan siswa dipengaruhi oleh banyak faktor yang perlu diidentifikasi. Penelitian ini bertujuan untuk menguji secara empiris pengaruh dukungan keluarga terhadap kesiapan kerja siswa kejuruan yang dimediasi oleh wawasan dunia kerja. Untuk itu 115 siswa dipilih melalui teknik cluster random sampling dari 4 SMK yang ada di Jawa Timur, Indonesia. Pengumpulan data menggunakan kuesioner untuk mengukur skala dukungan keluarga, wawasan dunia kerja dan kesiapan kerja siswa. Pengujian hipotesis dilakukan dengan analisis jalur pada tingkat signifikansi 0,05. Hasil penelitian menujukkan bahwa dukungan keluarga berpengaruh signifikan terhadap kesiapan kerja siswa, baik secara langsung maupun tidak langsung melalui wawasan dunia kerja. Dengan demikian, keterlibatan keluarga harus maksimal dalam memberikan dukungan yang dibutuhkan oleh siswa. Di sisi lain, sekolah harus mampu menyediakan informasi pekerjaan yang tepat untuk membantu siswa dalam memperluas wawasan mereka tentang dunia kerja.Kata kunci: kesiapan kerja; dukungan keluarga; wawasan dunia kerja; SMK. AbstractJob readiness of vocational students in Indonesia is one of the important issues that continues to be discussed. This is because vocational education graduates still occupy the top position for unemployment rates compared to other levels of education. The low job readiness among students is influenced by many factors that need to be identified. This study aims to empirically examine the effect of family support on vocational students' job readiness mediated by the world of work insight. For this reason, 115 students were selected through a cluster random sampling technique from 4 vocational schools in East Java, Indonesia. Collecting data using a questionnaire to measure the scale of family support, insight into the world of work and student work readiness. Hypothesis testing was carried out by path analysis at a significance level of 0.05. The results of the study show that family support has a significant effect on students' work readiness, both directly and indirectly through insight into the world of work. Thus, family involvement should be maximized in providing the support needed by students. On the other hand, schools must be able to provide appropriate job information to assist students in broadening their horizons about the world of work.Keywords : working readiness; family support; insight into the world of work; SMK.DAFTAR RUJUKANSuswanto, H., Asfani, K., and Wibawa, A.P. (2017). Contribution of teaching performance, learning satisfaction and achievement motivation to students’ competence achievement. Global J. of Engng. Educ., 19, 1, 66-71.Billett, S. (2011). Vocational Education Purposes, Traditions and Prospects. New York: Springer,.Pavlova, M. (2009). Technology And Vocational Education For Sustainable Development : Empowering Individuals for the Future. Queensland: Springer.Badan Pusat Statistik (BPS), Tingkat Pengangguran Terbuka (TPT) sebesar 5,34 persen (2018), 14 May 2019, https://www.bps.go.id/pressrelease/2018/11/05/1485/agustus-2018--tingkat-pengangguran-terbuka--tpt--sebesar-5-34-persen.htmlSasmito, A.P., Kustono, D. & Patmanthara, S. (2015). Kesiapan Memasuki Dunia Usaha/Dunia Industri (DU/DI) Siswa Paket Keahlian Rekayasa Perangkat Lunak di SMK. Teknologi dan Kejuruan, 38, 1, 25-40.Caballero, C., Walker, A., & Fuller-Tyszkiewicz, M. (2011). The Work Readiness Scale (WRS): Developing a measure to assess work readiness in college graduates. J. of Teaching and Learning for Graduate Employability, 2, 2, 41-54.Caballero, C., & Walker, A.  (2010). Work readiness in graduate recruitment and selection: A review of current assessment methods. J. of Teaching and Learning for Graduate Employability, 1, 1, 13- 25.Setyawati, R., (2017). Pengaruh Pengalaman Praktik Kerja Industri, Pelaksanaan Bimbingan Kejuruan dan Dukungan Keluarga terhadap Kesiapan Kerja Siswa SMK Swasta di Kabupaten Bantul. Jurnal Sosial Humaniora dan Pendidikan, 2, 1, 36-45.Grant, K.B. & Ray, J.A., (2010). Home, School, and Community Collaboration. United Stae of America: SAGE Publication, Inc.,King, R.B., & McInerney, D.M., (2019). Family-support goals drive engagement and achievement in a collectivist context: Integrating etic and emic approaches in goal research. Contemporary Educational Psychology 58, 338-353.Igberadja, S., (2015). Factors Influencing Performance In Basic Technology Among Secondary School Students of Delta South Senatorial District in Delta State, Nigeria, Journal of Technical Education and Training (JTET), 7, 2, 24-34.Odo, M. I. (2015). Sustaining Occupational Information for Career Choice and Development in Students of Technical Colleges in Enugu State, Nigeria. Journal of Technical Education and Training (JTET), 7, 1, 1-9.Saniter, N., Schnitzlein, D.,D., & Siedler, T. (2019). Occupational Knowledge and Educational Mobility: Evidence from the Introduction of Job Information Centers. Economics of Education Review, 69, 108-124.Feldt, L.S., & Brennan, R.L., (1989). Reliability educational measurement. New York: McMillan Publishing Company.Isarabhakdi, P. & Pewnil, T. (2016). Engagement with family, peers, and Internet use and its effect on mental well-being among high school students in Kanchanaburi Province, Thailand, International Journal of Adolescence and Youth, 21, 1, 15-26.Smitsa, J. & Hosgor, A.G. (2006). Effects of family background characteristics on educational participation in Turkey, International Journal of Educational Development, 26, 545-560.Ismail, M.E., Hashim, S., Hamzah, N., Samad, N.A., Masran, S.M., Mat Daud, K.A., Amin, N.F.M.,, Samsudin, M.A. & Kamarudin, N.Z.S. (2019). Factors that Influence Students’ Learning: An observation on Vocational College students, Journal Of Technical Education And Trainin, 11, 1, 93-99.Ainane, S., Bouabid, A. & Sokkary, W.E. (2019). Factors that influence the high percentage of women enrolled in engineering in the UAE and preparing for careers in the oil and gas industry, Global Journal of Engineering Education., 21, 1, 62-68.
Workshop Desain Grafis dengan Canva Solusi Kreatif untuk Siswa Pesantren dalam Menguasai Konten Promosi Digital di Tengah Keterbatasan Akses Teknologi Widaningrum, Anisa Hudi; Fitriani, Indah Martha; Ratnasari, Novia; Darmawan, Kiki; Rohman, Mojibur; Zamzami, Muhammad Rizal Akbar; Hasan, Ismail; Nadifah, Diana; Rahma, Nadifa
I-Com: Indonesian Community Journal Vol 5 No 2 (2025): I-Com: Indonesian Community Journal (Juni 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v5i2.7466

Abstract

Workshop desain grafis menggunakan Canva di SMA Integratif PPAI Al- Karomah Kabupaten Malang dilaksanakan sebagai respon terhadap rendahnya literasi digital dan keterampilan desain di kalangan santri, meskipun mereka memiliki minat tinggi terhadap media sosial. Kegiatan ini bertujuan membekali santri dengan kemampuan dasar desain promosi digital melalui metode studi kasus dan Workshop praktis. Materi yang diberikan mencakup pengenalan Canva, strategi konten Instagram, serta prinsip desain seperti layout, warna, dan tipografi. Hasil observasi menunjukkan peningkatan pemahaman dan antusiasme peserta. Evaluasi dilakukan berdasarkan kualitas desain, namun penilaian berbasis unggahan Instagram tidak optimal karena keterbatasan akses perangkat. Temuan ini menegaskan pentingnya pelatihan berbasis praktik yang adaptif terhadap kondisi pesantren. Secara keseluruhan, Workshop ini berkontribusi pada peningkatan literasi digital dan menjadi langkah awal menuju pemberdayaan ekosistem digital pesantren yang mandiri dan berkelanjutan di era transformasi digital.
Structural Analysis of Compressor Connecting Rod Using Finite Element Simulation in SolidWork Permadi, Luchyto Chandra; Tjiptady, Bella Cornelia; Meditama, Ratna Fajarwati; Darmawan, Kiki; Rohman, Mojibur; Asshadiqi, Faisol Khoufi; Pradhana, Candra
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7504

Abstract

The connecting rod in a compressor plays a critical role in transmitting the reciprocating motion from the piston to the crankshaft, making it a vital component that is constantly subjected to cyclic loads and stresses. This study aims to evaluate the structural strength and reliability of a compressor connecting rod by utilizing Finite Element Analysis (FEA) through SolidWorks Simulation software. The connecting rod was modeled with realistic geometric dimensions and material properties commonly used in household refrigerator compressors, such as aluminum alloys or medium-carbon steel. The simulation was performed by applying realistic boundary conditions, including compressive forces, reaction loads from the crankshaft, and constraints reflecting actual operational conditions. The results of the finite element simulation provided insights into the stress distribution, deformation patterns, and safety factors of the connecting rod under various load conditions. The maximum von Mises stress was identified in the transition area between the rod and the crank pin, which is consistent with typical failure points found in previous studies. From the analysis, it was concluded that the existing design provides an acceptable safety factor under normal working conditions, but optimizations in material thickness and fillet radius at critical regions could further enhance durability and reduce the risk of fatigue failure. This study highlights the importance of structural analysis in improving the reliability and longevity of compressor components through simulation-based design validation.
Penerapan Teknologi Mesin Mixing Serbuk Lemon Otomatis untuk Meningkatkan Kapasitas Produksi UMKM di Desa Sumberdem, Kabupaten Malang Rahman, Mojibur; Widaningrum, Anisa Hudi; Choirina, Priska; Asshidiqi, Faisol Khoufi; Kumala, Tri Ayu Tirta; Nurcahyo, Alvin
JURNAL ABDI MASYARAKAT SABURAI Vol 6, No 02 (2025): JURNAL ABDI MASYARAKAT SABURAI
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/jams.v6i02.4476

Abstract

Program pengabdian masyarakat ini dilaksanakan di Desa Sumberdem, Kecamatan Wonosari, Kabupaten Malang, dengan mitra UMKM Sedaer Lemon (Darmon) yang memproduksi serbuk lemon instan. Permasalahan utama mitra adalah kapasitas produksi rendah (20 s.d 25 kg/minggu) dan hasil pencampuran kurang homogen karena masih manual. Kegiatan ini bertujuan untuk meningkatkan kapasitas produksi dan mutu produk melalui penerapan mesin mixing serbuk lemon otomatis. Tahapan pelaksanaan meliputi sosialisasi, pengembangan dan uji mesin, pelatihan teknis-manajerial, penerapan teknologi, serta pendampingan. Luaran kegiatan berupa mesin mixing berkapasitas kurang lebih 5 kg/batch, SOP produksi, peningkatan kapasitas minimal 40 persen, dan mutu produk lebih baik. Hasil kegiatan menunjukkan waktu produksi menjadi lebih singkat dari yang semula kurang lebih 5 jam menjadi kurang lebih 1 jam per batch dengan hasil pencampuran serbuk lemon yang lebih homogen. Kapasitas produksi juga mengalami peningkatan mencapai 40 kg/minggu, efisiensi meningkat, dan kualitas produk lebih stabil. Program ini berdampak positif pada daya saing UMKM dan berpotensi direplikasi pada usaha lain yang sejenis.
Analisis Displacemet Connecting Rod Menggunakan Metode Elemen Hingga Dengan Material Titanium Alloy Erdyno, Nafi’; Tjiptady, Bella Cornelia; Rohman, Mojibur
Metrotech (Journal of Mechanical and Electrical Technology) Vol 3 No 2: Mei 2024
Publisher : Fakultas Sains dan Teknologi, UNIRA Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/metrotech.v3i2.4685

Abstract

Connecting rod merupakan komponen berupa batang penghubung antara piston dan crankshaft. Connecting rod memiliki fungsi untuk meneruskan daya dari piston ke crankshaft dengan mengubah gerak naik turun (translasi) pada piston menjadi gerak rotasi pada crankshaft. Connecting  rod mendorong piston pada sistem pembakaran  yang terdapat di ruang silinder karena terkompresinya bahan bakar dan udara. Permasalahan yang ada yaitu connecting rod harus mampu menahan beban tekan, tarik dan tegangan lentur yang diakibat oleh gaya dorong maksimum pada piston. Sehingga perlu adanya perancangan desain connecting rod menekankan pada hasil pengujian dengan tekanan yang telah di tentukan mulai dari tekanan 300 N, 500 N dan 1000 N. Subjek yang di analisis hasil pengujian yaitu displacement,stress,dan strain. Bahan material yang digunakan titanium alloy karena material ini memiliki kekuatan yang baik, dan memiliki ketahanan korosi yang bagus. Dengan kata lain dasain connecting rod motor yang baik, harus memiliki kekuatan yang baik, aman dan sesuai dengan kebutuhan maka pemilihan material sangatlah berpengaruh pada kinerja connecting rod ini. Metode yang digunakan adalah Metode Elemen Hingga (MEH) dengan software solidworks 2014. Analisis dilakukan pada desain connecting rod motor dengan berdasarkan hasil analisis dengan MEH, dinyatakan bahwa connecting rod dengan bahan material titanium alloy dengan working pressure maksimal 1000 N, kuat dan aman untuk digunakan.
Exploring Masterweb's Effectiveness in Optimizing Digital Based Learning and Education Management Tjiptady, Bella Cornelia; Rohman, Mojibur; Rahman, Rifki Zainur; Elmunsyah, Hakkun; Tarecha, Rachmad Imam
ULTIMA InfoSys Vol 15 No 2 (2024): Ultima Infosys: Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i2.3596

Abstract

Masterweb is a concept where multiple web services are integrated into a centralized platform, offering seamless access and management of various online tools and resources. Research discusses the effectiveness of masterweb in optimizing digital-based learning and education management. Research method uses a mix method approach with an exploratory design. Paper also highlights the importance of transforming learning media in the digital era and how digitalization can improve the quality of vocational education. Research results show that the application of Masterweb allows the adoption of blended learning methods that combine conventional approaches with digital elements. Collaboration with expert companies in developing e-learning and multimedia systems also ensures the availability of ICT infrastructure that supports the smooth learning process. With Masterweb, teachers and school management can be more effective in recording teaching and learning activities, monitoring student attendance, and increasing the effectiveness of monitoring and developing student skills. This research provides important insights into the importance of technology integration in education to increase efficiency, effectiveness, management and the attractiveness of learning in the digital era
OPTIMALISASI KINERJA TRUK QUESTER CWE 370 MELALUI MODIFIKASI SISTEM VESSEL Pradani, Yayi Febdia; Tjiptady, Bella; Pratomo, Danang Yugo; Rahman, Rifki Zainur; Rohman, Mojibur
Steam Engineering Vol. 6 No. 1 (2024): STEAM Engineering, Vol. 6, No. 1, September 2024
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v6i1.15247

Abstract

The Quester CWE 370 truck is one of the most widely used transport vehicles in the industry, where reliability and operational efficiency are critical to ensuring a smooth supply chain. This research aims to optimize truck performance through vessel system modification, which focuses on improving fuel strength and efficiency. The modification process includes checking the raw material, cutting, welding, and smoothing, which is followed by testing to ensure fuel flow stability and better engine response. The results show that vessel system modifications not only improve fuel efficiency, but also extend engine life and reduce the need for routine maintenance. Thus, these modifications provide long-term benefits for the company in terms of operational cost savings and increased productivity.
Co-Authors Abd Wahab Abd Wahab Abdul Wahab Agus Dwi Putra Agus Dwi Putra Ahmad Mukhlis Ahmad Saepuddin Alfi Fadliana Alvin Maulana A Asshadiqi, Faisol Khoufi Asshidiqi, Faisol Khoufi Bella Cornelia Tjiptady Bella Cornelia Tjiptady Candra Pradhana Chanda, Muhammad Rizki Choirina, Priska Chuzaimatul Fitriyah Danang Yugo Pratomo Darmawan, Kiki Dianna Ratnawati Dwi Agus Sudjimat Ecky Zaskia Nurin Farrynda Eddy Sutadji Erdyno, Nafi’ Fardana, Mochamad Adhi Farid Wahyudi Febri, Moh. Fitriani, Indah Martha Hakkun Elmunsyah Humam, Muhammad Na im Indah Martha Fitriani Ismail Hasan, Ismail Kumala, Tri Ayu Tirta M. Zannur Habib Machmud Sugandi Marji . MEDITAMA, RATNA Meditama, Ratna Fajarwati Mochamad Sulaiman Mochammad Sulaiman Moh Fajar Alfan Rezaky Muchamad Hari Nugroho Muhammad Rizal Akbar Zamzami Muhammad Rizki Chanda Nadifah, Diana Nanik Ulfa Nurcahyo, Alvin PANGESTUTI PRIMA DARAJAT Permadi, Luchyto Chandra Pradhana, Candra Purnomo, Purnomo Putra, Agus Dwi Rahma, Nadifa Rahman, Rifki Zainur Rahmawati, Zurriat Nyndia Ratna Fajarwati Meditama Ratna Fajarwati Meditama Ratnasari, Novia Salim Salim Septarina, Amalia Agung Setiawan, Afriandi Sriwijaya, Bagus Sujoko Sujoko Sulistianingsih AS Sulistianingsih AS. Sulistianingsih, Sulistianingsih AS Tarecha, Rachmad Imam Tjiptady, Bella Tjiptady, Bella Cornelia Urnika Mudhifatul Jannah widaningrum, anisa hudi Yayi Febdia Pradani Zainal Abidin Zainal Abidin Zainal Abidin Zamzami, Muhammad Ana Zamzami, Muhammad Rizal Akbar Zaudah Cyly Arrum Dalu