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Jig and Fixture Redesign for Making Reamer on Head Cylinder Tjiptady, Bella Cornelia; Rahman, Rifki Zainur; Meditama, Ratna Fajarwati; Widayana, Gede
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.v9i1.32597

Abstract

Proses produksi telah banyak berevolusi dengan diperkenalkannya konsep manufaktur inovatif yang handal. Salah satu komponen mesin yang banyak diproduksi adalah cylinder head. Cylinder head harus tahan terhadap temperatur dan tekanan yang tinggi selama engine bekerja. Oleh sebab itu umumnya cylinder head dibuat dari besi tuang. Kendala yang ada saat ini yaitu proses pembuatan cylinder head kurang efektif dan efisien karena ketika menetapkan sudut untuk membuat reamer berbasis manual, selain itu setting benda kerja tidak otomatis sehingga membutuhkan waktu yang terlalu lama. Solusi dari permasalahan tersebut yaitu dengan adanya jig dan fixture. Metode penelitian yang digunakan adalah metodologi perancangan fixture (Society of Manufacturing Engineers). Berdasarkan hasil analisis, terdapat kelebihan dari jig dan fixture yang telah dirancang ulang yaitu: 1) memiliki stoper yang berfungsi untuk memberhentikan benda kerja, dengan sudut yang sudah ditentukan sehingga tidak perlu mensetting sudut kembali; 2) tidak mudah bergeser apabila fixture dipasang dan sejajar di meja frais; 3) terdapat dua engsel sehingga lebih balance; 4) pemasangan tidak rumit sehingga tidak memakan banyak waktu dalam pembuatan produk.Kata kunci: Jig and fixture; redesign; head cylinder The production process has evolved a lot with the introduction of innovative reliable manufacturing concepts. One of the engine components that are widely produced is the cylinder head. The cylinder head must withstand high temperatures and pressures while the engine is running. Therefore, generally the cylinder head is made of cast iron. The current constraint is that the cylinder head manufacturing process is less effective and efficient because when setting the angle to make the reamer a manual basis, besides that the workpiece setting is not automatic so it takes too long. The solution to this problem is the presence of jigs and fixtures. The research method used is the fixture design methodology (Society of Manufacturing Engineers). Based on the results of the analysis, there are advantages to the redesigned jig and fixture, namely: 1) it has a stoper which functions to stop the workpiece, at a predetermined angle so that there is no need to set the angle again; 2) it does not move easily when the fixture is installed and parallel to the milling table; 3) there are two hinges so that it is more balanced; 4) installation is not complicated so it does not take much time to manufacture the product.Keywords : Jig and fixture; redesign; head cylinder.  DAFTAR RUJUKAN Basuki, B., Yoto., Suyetno A., & Tjiptady, B. C. (2020). Management Model of Manufacturing Workshop/Laboratory of Vocational Education in the Industry 4.0. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 127-130, doi: 10.1109/ICOVET50258.2020.9230188. Choong, G. Y. H., Canciani, A., & Defocatiis, D. S. A. (2020). An Adaptable Flexural Test Fixture for Miniaturised Polymer Specimens. Polymer Testing, 85, 106430. doi:10.1016/j.polymertesting.2020.106430 Craig, O., Picavea, J., Gameros, A., Axinte, D., & Lowth, S. (2020). Conformable Fixture Systems With Flexure Pins For Improved Workpiece Damping. Journal of Manufacturing Processes, 50, 638–652. doi:10.1016/j.jmapro.2019.12.045  Fonte, M., Reis, L., Infante, V., & Freitas, M. (2019). Failure Analysis of Cylinder Head Studs of a Four Stroke Marine Diesel Engine. Engineering Failure Analysis. doi:10.1016/j.engfailanal.2019.03.026  Gameros, A., Lowth, S., Axinte, D., Nagy-Sochacki, A., Craig, O., & Siller, H. R. (2017). State-Of-The-Art In Fixture Systems For The Manufacture And Assembly Of Rigid Components: A Review. International Journal of Machine Tools and Manufacture, 123, 1–21. doi:10.1016/j.ijmachtools.2017.07.004 Jing, G. X., Zhang, M. X., Qu, S., Pang, J. C., Fu, C. M., Dong, C., Zhang, Z. F. (2018). Investigation into diesel engine cylinder head failure. Engineering Failure Analysis, 90, 36–46. doi:10.1016/j.engfailanal.2018.03.008  Kamble, V. D., & Mathew, A. T. (2020). Brief Review of Methodologies for Creation of Cohesive Fixture Design. Materials Today: Proceedings, 22, 3353–3363. doi:10.1016/j.matpr.2020.04.285  Kampker, A., Bergweiler, G., Hollah, A., Lichtenthäler, K., & Leimbrink, S. (2019). Design and Testing of The Different Interfaces In A 3D Printed Welding Jig. Procedia CIRP, 81, 45–50. doi:10.1016/j.procir.2019.03.009  Krznar, N., Pilipović, A., & Šercer, M. (2016). Additive Manufacturing of Fixture for Automated 3D Scanning–Case Study. Procedia Engineering, 149, 197–202. doi:10.1016/j.proeng.2016.06.656  Kumar, S., Campilho, R. D. S. G., & Silva, F. J. G. (2019). Rethinking Modular Jigs’ Design Regarding the Optimization of Machining Times. Procedia Manufacturing, 38, 876–883. doi:10.1016/j.promfg.2020.01.169 Lu, R., Li, Y.-C., Li, Y., Jiang, J., & Ding, Y. (2020). Multi-agent Deep Reinforcement Learning Based Demand Response for Discrete Manufacturing Systems Energy Management. Applied Energy, 276, 115473. doi:10.1016/j.apenergy.2020.115473  Ma, S., Zhang, Y., Yang, H., Lv, J., Ren, S., & Liu, Y. (2020). Data-driven Sustainable Intelligent Manufacturing Based on Demand Response for Energy-Intensive Industries. Journal of Cleaner Production, 123155. doi:10.1016/j.jclepro.2020. 123155 Marsono, Yoto, Sutadji E., & Tjiptady, B. C. (2020). Career Development and Self-Efficacy Through Industrial Working Practice in Vocational Education," 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 1-4, doi: 10.1109/ICOVET50258.2020.9230111 Nee, A. Y. C., Bhattacharyya, N., & Poo, A. N. (1987). Applying AI in Jigs and Fixtures Design. Robotics and Computer-Integrated Manufacturing, 3(2), 195–200. doi:10.1016/0736-5845(87)90102-5 Qolik, A., Nurmalasari, R., Yoto., & Tjiptady, B. C. (2020). The Role of Special Job Fair in Distributing Competitive Graduates in the 21st Century. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 115-118, doi: 10.1109/ICOVET50258.2020.9230064 Schuh, G., Bergweiler, G., Lichtenthäler, K., Fiedler, F., & Puente, R. S. (2020). Topology Optimisation and Metal Based Additive Manufacturing of Welding Jig Elements. Procedia CIRP, 93, 62–67. doi:10.1016/j.procir.2020.04.066  Seloane, W. T., Mpofu, K., Ramatsetse, B. I., & Modungwa, D. (2020). Conceptual Design of Intelligent Reconfigurable Welding Fixture for Rail Car Manufacturing Industry. Procedia CIRP, 91, 583–593. doi:10.1016/j.procir.2020.02.217 Siva, R., Siddardha, B., Yuvaraja, S., & Karthikeyan, P. (2020). Improving the productivity and tool life by fixture modification and renishaw probe technique. Materials Today: Proceedings, 24, 782–787. doi:10.1016/j.matpr.2020.04.386  Tjiptady, B. C., Rohman, M., Sudjimat, D. A., Ratnawati, D. (2020). Analisis Tegangan, Deformasi, dan Retak Pada Gas Turbine Blade dengan Metode Elemen Hingga. Jurnal Taman Vokasi. Vol 8, (2). doi : 10.30738/jtv.v8i2.8425 Tjiptady, B. C., Yoto., & Marsono. (2020). Entrepreneurship Development Design based on Teaching Factory to Improve the Vocational Education Quality in Singapore and Indonesia, 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, pp. 130-134, doi: 10.1109/ICOVET50258.2020.9230222 Tohidi, H., & Algeddawy, T. (2016). Planning of Modular Fixtures in a Robotic Assembly System. Procedia CIRP, 41, 252–257. doi:10.1016/j.procir.2015.12.090 Vijaya, R. B., Elanchezhian, C., Rajesh, S., Jaya, P. S., Kumaar, B. M., & Rajeshkannan, K. (2018). Design and Development of Milling Fixture for Friction Stir Welding. Materials Today: Proceedings, 5(1), 1832–1838. doi:10.1016/j.matpr.2017.11.282  
Studi Pengaruh Variasi Bentuk Mata Pisau Pada Mesin Pemotong Rumput Dengan Simulasi Solidworks: Study Of The Effect Of Blade Shape Variations On Lawn Mower With Solidworks Simulation Rohman, Mojibur; Febri, Moh.; Meditama, Ratna Fajarwati; Bella Cornelia Tjiptady
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 11 No. 2 (2023)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v11i2.61421

Abstract

Rumput adalah tanaman yang mudah dijumpai. Namun untuk memotong  rumput masih menggunakan sabit. Maka diperlukan inovasi mesin pemotong rumput. Penelitian ini membuat desain mata pisau yang aman. Metode pengambilan data, mendesain variasi mata pisau, kemudian diberikan beban 650N dengan material plain carbon steel, melihat stress, displacement dan factor of safety. Berdasarkan hasil analisa pengaruh variasi pisau yaitu, Pengujian  jajar genjang 1sisi dengan force 650N hasil stress 232,9N/mm2(MPa), displacement 0,22mm, dan factor of safety 2,84, pengujian 2sisi hasil stress 231,4N/mm2(MPa), displacement 0,28mm, dan factor of safety 2,86. Pengujian persegi panjang 1sisi hasil stress 203,9N/mm2(MPa), displacement 0,23mm, dan factor of safety 3,25, pengujian 2sisi hasil stress 201,2N/mm2(MPa), displacement 0,231mm, dan factor of safety 3,29. Pengujian trapesium 1sisi hasil stress 244,1N/mm2(MPa), displacement 0,24mm, dan factor of safety 2,71, pengujian 2sisi hasil stress 233,4N/mm2(MPa), displacement 0,239mm, dan factor of safety 2,83. Kesimpulan dari penelitian ini dapat dipilih dalam pembuatan mata pisau adalah persegi panjang Kata kunci : Mata Pisau, Solidworks, Inovasi, Variasi Mata pisau, kinerja. Grass is an easy plant to find. But to mow the grass still use a sickle. Then we need innovation lawn mowers. This research makes a safe blade design. Data collection method, designing a variation of the blade, then given a load of 650N and the material plain carbon steel, sees tress, displacement and safety factors. According to analysis result of knife variations effect, namely, 1-sided parallelogram test with force 650N yield stress 232,9N/mm2(MPa), displacement 0.22mm, and factor of safety 2.84, 2-sided testing results stress 231,4N/mm2(MPa), displacement 0.28mm, and factor of safety 2.86. Testing the 1-sided rectangle results stress 203,9N/mm2(MPa), displacement 0,23mm, dan factor of safety 3.25, 2-sided testing results stress 201.2 N/mm2(MPa), displacement 0.231mm, and factor of safety 3,29. Trapezoid test 1-sided results stress 244,1N/mm2(MPa), displacement 0.24mm, and factor of safety 2.71, 2-sided testing results stress 233,4N/mm2(MPa), displacement 0,239 mm, dan factor of safety 2.83. The conclusion from this research can be chosen in making the blade is rectangular.
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.
Utilization of the Internet of Things to Optimize Teaching Factory in Vocational Schools: Industry 5.0-Based Learning Innovation Meditama, Ratna Fajarwati; Musnandar, Aries; Sutrisno, Sutrisno; Abidin, Irsyad Dzulfiqar; Surbakti, Andika Hariyanto
Journal Emerging Technologies in Education Vol. 2 No. 5 (2024)
Publisher : Yayasan Pendidikan Islam Daarut Thufulah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jete.v2i5.1363

Abstract

Background. The Industrial Revolution 5.0 demands innovation in the education sector, particularly in Vocational High Schools (SMK), to prepare graduates capable of competing in the digital era and smart industry. This research explores the integration of the Internet of Things (IoT) within the Teaching Factory concept in SMK as a strategy to optimize industry-based learning. IoT technology enables the Teaching Factory to simulate real industrial environments, allowing students to be actively involved in production processes supported by real-time data and automation. Purpose. The purpose of this study is to analyze the benefits of IoT implementation in the Teaching Factory to enhance student readiness for the workforce. Method. The research method includes a literature review and a case study of SMKs that have integrated IoT into their Teaching Factory activities. Results. The results indicate that IoT use increases efficiency and productivity in the learning process while enriching students’ learning experiences through interactive and adaptive methods. IoT integration also helps students develop relevant skills for the workforce, thus reducing unemployment rates in Indonesia. Conclusion. In conclusion, the incorporation of IoT into the Teaching Factory concept offers significant opportunities for SMK to better prepare students for the challenges of Industry 5.0. This article provides practical recommendations for SMK administrators to develop IoT-based curricula and learning infrastructure to align with industrial needs.
Jig and Fixture Redesign for Making Reamer on Head Cylinder Tjiptady, Bella Cornelia; Rahman, Rifki Zainur; Meditama, Ratna Fajarwati; Widayana, Gede
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.v9i1.32597

Abstract

Proses produksi telah banyak berevolusi dengan diperkenalkannya konsep manufaktur inovatif yang handal. Salah satu komponen mesin yang banyak diproduksi adalah cylinder head. Cylinder head harus tahan terhadap temperatur dan tekanan yang tinggi selama engine bekerja. Oleh sebab itu umumnya cylinder head dibuat dari besi tuang. Kendala yang ada saat ini yaitu proses pembuatan cylinder head kurang efektif dan efisien karena ketika menetapkan sudut untuk membuat reamer berbasis manual, selain itu setting benda kerja tidak otomatis sehingga membutuhkan waktu yang terlalu lama. Solusi dari permasalahan tersebut yaitu dengan adanya jig dan fixture. Metode penelitian yang digunakan adalah metodologi perancangan fixture (Society of Manufacturing Engineers). Berdasarkan hasil analisis, terdapat kelebihan dari jig dan fixture yang telah dirancang ulang yaitu: 1) memiliki stoper yang berfungsi untuk memberhentikan benda kerja, dengan sudut yang sudah ditentukan sehingga tidak perlu mensetting sudut kembali; 2) tidak mudah bergeser apabila fixture dipasang dan sejajar di meja frais; 3) terdapat dua engsel sehingga lebih balance; 4) pemasangan tidak rumit sehingga tidak memakan banyak waktu dalam pembuatan produk.Kata kunci: Jig and fixture; redesign; head cylinder The production process has evolved a lot with the introduction of innovative reliable manufacturing concepts. One of the engine components that are widely produced is the cylinder head. The cylinder head must withstand high temperatures and pressures while the engine is running. Therefore, generally the cylinder head is made of cast iron. The current constraint is that the cylinder head manufacturing process is less effective and efficient because when setting the angle to make the reamer a manual basis, besides that the workpiece setting is not automatic so it takes too long. The solution to this problem is the presence of jigs and fixtures. The research method used is the fixture design methodology (Society of Manufacturing Engineers). Based on the results of the analysis, there are advantages to the redesigned jig and fixture, namely: 1) it has a stoper which functions to stop the workpiece, at a predetermined angle so that there is no need to set the angle again; 2) it does not move easily when the fixture is installed and parallel to the milling table; 3) there are two hinges so that it is more balanced; 4) installation is not complicated so it does not take much time to manufacture the product.Keywords : Jig and fixture; redesign; head cylinder.  DAFTAR RUJUKAN Basuki, B., Yoto., Suyetno A., & Tjiptady, B. C. (2020). Management Model of Manufacturing Workshop/Laboratory of Vocational Education in the Industry 4.0. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 127-130, doi: 10.1109/ICOVET50258.2020.9230188. Choong, G. Y. H., Canciani, A., & Defocatiis, D. S. A. (2020). An Adaptable Flexural Test Fixture for Miniaturised Polymer Specimens. Polymer Testing, 85, 106430. doi:10.1016/j.polymertesting.2020.106430 Craig, O., Picavea, J., Gameros, A., Axinte, D., & Lowth, S. (2020). Conformable Fixture Systems With Flexure Pins For Improved Workpiece Damping. Journal of Manufacturing Processes, 50, 638–652. doi:10.1016/j.jmapro.2019.12.045  Fonte, M., Reis, L., Infante, V., & Freitas, M. (2019). Failure Analysis of Cylinder Head Studs of a Four Stroke Marine Diesel Engine. Engineering Failure Analysis. doi:10.1016/j.engfailanal.2019.03.026  Gameros, A., Lowth, S., Axinte, D., Nagy-Sochacki, A., Craig, O., & Siller, H. R. (2017). State-Of-The-Art In Fixture Systems For The Manufacture And Assembly Of Rigid Components: A Review. International Journal of Machine Tools and Manufacture, 123, 1–21. doi:10.1016/j.ijmachtools.2017.07.004 Jing, G. X., Zhang, M. X., Qu, S., Pang, J. C., Fu, C. M., Dong, C., Zhang, Z. F. (2018). Investigation into diesel engine cylinder head failure. Engineering Failure Analysis, 90, 36–46. doi:10.1016/j.engfailanal.2018.03.008  Kamble, V. D., & Mathew, A. T. (2020). Brief Review of Methodologies for Creation of Cohesive Fixture Design. Materials Today: Proceedings, 22, 3353–3363. doi:10.1016/j.matpr.2020.04.285  Kampker, A., Bergweiler, G., Hollah, A., Lichtenthäler, K., & Leimbrink, S. (2019). Design and Testing of The Different Interfaces In A 3D Printed Welding Jig. Procedia CIRP, 81, 45–50. doi:10.1016/j.procir.2019.03.009  Krznar, N., Pilipović, A., & Šercer, M. (2016). Additive Manufacturing of Fixture for Automated 3D Scanning–Case Study. Procedia Engineering, 149, 197–202. doi:10.1016/j.proeng.2016.06.656  Kumar, S., Campilho, R. D. S. G., & Silva, F. J. G. (2019). Rethinking Modular Jigs’ Design Regarding the Optimization of Machining Times. Procedia Manufacturing, 38, 876–883. doi:10.1016/j.promfg.2020.01.169 Lu, R., Li, Y.-C., Li, Y., Jiang, J., & Ding, Y. (2020). Multi-agent Deep Reinforcement Learning Based Demand Response for Discrete Manufacturing Systems Energy Management. Applied Energy, 276, 115473. doi:10.1016/j.apenergy.2020.115473  Ma, S., Zhang, Y., Yang, H., Lv, J., Ren, S., & Liu, Y. (2020). Data-driven Sustainable Intelligent Manufacturing Based on Demand Response for Energy-Intensive Industries. Journal of Cleaner Production, 123155. doi:10.1016/j.jclepro.2020. 123155 Marsono, Yoto, Sutadji E., & Tjiptady, B. C. (2020). Career Development and Self-Efficacy Through Industrial Working Practice in Vocational Education," 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 1-4, doi: 10.1109/ICOVET50258.2020.9230111 Nee, A. Y. C., Bhattacharyya, N., & Poo, A. N. (1987). Applying AI in Jigs and Fixtures Design. Robotics and Computer-Integrated Manufacturing, 3(2), 195–200. doi:10.1016/0736-5845(87)90102-5 Qolik, A., Nurmalasari, R., Yoto., & Tjiptady, B. C. (2020). The Role of Special Job Fair in Distributing Competitive Graduates in the 21st Century. 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, 2020, pp. 115-118, doi: 10.1109/ICOVET50258.2020.9230064 Schuh, G., Bergweiler, G., Lichtenthäler, K., Fiedler, F., & Puente, R. S. (2020). Topology Optimisation and Metal Based Additive Manufacturing of Welding Jig Elements. Procedia CIRP, 93, 62–67. doi:10.1016/j.procir.2020.04.066  Seloane, W. T., Mpofu, K., Ramatsetse, B. I., & Modungwa, D. (2020). Conceptual Design of Intelligent Reconfigurable Welding Fixture for Rail Car Manufacturing Industry. Procedia CIRP, 91, 583–593. doi:10.1016/j.procir.2020.02.217 Siva, R., Siddardha, B., Yuvaraja, S., & Karthikeyan, P. (2020). Improving the productivity and tool life by fixture modification and renishaw probe technique. Materials Today: Proceedings, 24, 782–787. doi:10.1016/j.matpr.2020.04.386  Tjiptady, B. C., Rohman, M., Sudjimat, D. A., Ratnawati, D. (2020). Analisis Tegangan, Deformasi, dan Retak Pada Gas Turbine Blade dengan Metode Elemen Hingga. Jurnal Taman Vokasi. Vol 8, (2). doi : 10.30738/jtv.v8i2.8425 Tjiptady, B. C., Yoto., & Marsono. (2020). Entrepreneurship Development Design based on Teaching Factory to Improve the Vocational Education Quality in Singapore and Indonesia, 4th International Conference on Vocational Education and Training (ICOVET), Malang, Indonesia, pp. 130-134, doi: 10.1109/ICOVET50258.2020.9230222 Tohidi, H., & Algeddawy, T. (2016). Planning of Modular Fixtures in a Robotic Assembly System. Procedia CIRP, 41, 252–257. doi:10.1016/j.procir.2015.12.090 Vijaya, R. B., Elanchezhian, C., Rajesh, S., Jaya, P. S., Kumaar, B. M., & Rajeshkannan, K. (2018). Design and Development of Milling Fixture for Friction Stir Welding. Materials Today: Proceedings, 5(1), 1832–1838. doi:10.1016/j.matpr.2017.11.282  
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.
Green Entrepreneurship Sebagai Pilar Pendidikan Kejuruan: Inovasi untuk Kemandirian Ekonomi dan Kelestarian Lingkungan Meditama, Ratna Fajarwati
DIALEKTIKA: Jurnal Ekonomi dan Ilmu Sosial Vol 10 No 2 (2025): Dialektika: Jurnal Ekonomi dan Ilmu Sosial
Publisher : Prodi Manajemen Fakultas Ekonomi dan Bisnis Universitas Islam Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36636/dialektika.v10i2.5375

Abstract

Vocational education has a strategic role in forming human resources who are ready to face work challenges. In this era, the concept of green entrepreneurship is important to be integrated into the vocational education curriculum. This study aims to instill environmental awareness and sustainable business ethics in vocational education. Through this innovation, students are encouraged to develop environmentally friendly business ideas that are oriented towards economic independence. Case studies and project-based learning approaches are used to explore how this concept can be effectively applied in a vocational education environment. The results of the study indicate that the integration of green entrepreneurship in vocational education not only improves students' competence in the field of entrepreneurship, but also encourages the creation of businesses that contribute to environmental sustainability. Vocational education plays an important role in preparing a generation of entrepreneurs who are ready to face economic and ecological challenges in the future.
Analisis Kekuatan Velg Terhadap Kestabilan dan Kinerja CB150R Menggunakan Software Solidworks 2020 Tjiptady, Bella Cornelia; pradani, yayi febdia; Permadi, Luchyto Chandra; Meditama, Ratna Fajarwati; Nugroho, Fahmi Setyo
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.v3i2.4339

Abstract

Velg yang kuat dapat berkontribusi signifikan dalam mengurangi bobot sepeda motor, yang pada akhirnya dapat meningkatkan efisiensi bahan bakar dan memberikan pengalaman berkendara yang lebih ramah lingkungan. Secara keseluruhan, desain velg CB150R berbahan alloy steel sangatlah menarik dan sporty. Namun memiliki kekurangan yaitu harganya lebih mahal daripada velg berbahan baja dan sulit untuk diperbaiki jika mengalami kerusakan. Solidworks yang memungkinkan pengguna menentukan dimensi dan hubungan antara berbagai elemen sketsa. Setelah sketsa dasar dibuat, langkah selanjutnya adalah mengubahnya menjadi model 3D. Hal ini memungkinkan para insinyur dan desainer untuk mengidentifikasi potensi masalah dan kelemahan dalam suatu desain sebelum membuat prototipe fisik. Hasil perhitungan static displacement memberikan informasi tentang perubahan bentuk, perpindahan, atau deformasi struktur yang terjadi akibat beban statis. Informasi ini penting dalam perancangan struktur yang mempertimbangkan kinerja struktural, kekuatan material, dan keamanan. Static displacement dapat diukur atau dihitung diberi 2 N/m2 sebagai perubahan posisi suatu titik atau elemen dalam struktur akibat beban yang dikenakan. Diketahui factor of safety terbesar yaitu 3,1e+06 dan terkecil 2,150e+09 bisa juga untuk mengetahui pembeban 2 N/m² yang diberikan.  Berdasarkan nilai dari factor of safety pada tekanan 2 N/m² mendapatkan nilai 2,3 yang berarti struktur atau material tersebut memiliki daya tahan yang diperlukan untuk menahan beban yang diantisipasi.
PERANCANGAN MESIN PENGERING RIMPANG UNTUK RUMAH PRODUKSI JAMU CELUP TRADISIONAL Meditama, Ratna Fajarwati; Purwady, Ary Kusuma
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.v6i1.8346

Abstract

Rhizomes are one of the main ingredients in the production of traditional herbal medicine, which plays an important role in the food, beverage and medicine industries. The process of drying rhizomes greatly affects the quality and shelf life of the product, so an efficient drying device is needed to ensure optimal quality. This research aims to design a rhizome drying tool for traditional dipping herbal medicine production houses, which can speed up the drying process and maintain the quality of the rhizomes produced. This type of research is development research with the research object being rhizomes used in herbal medicine production. Data was collected through testing the designed tool, using temperature and drying time testing methods. Data analysis was carried out by measuring the quality of the rhizomes post-drying, including moisture and color. The research results showed that the designed dryer was capable of drying rhizomes at a temperature of 40°C within 1 hour, while maintaining the quality of the rhizomes and meeting the standards for herbal medicine production. In conclusion, this tool has the potential to be a practical solution for traditional herbal medicine production houses, speeding up the production process and increasing efficiency.