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All Journal Turbo : Jurnal Program Studi Teknik Mesin APTEK JTTM: Jurnal Terapan Teknik Mesin IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Mustaza Ma'a
Politeknik Caltex Riau
Aerospace Engineering Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Experimental investigation of profile eye shape on plate bending: The role of rotational speed Mustaza Ma'a; Prawira Yuda; Novison Roni; Yanda Zaira Jupri
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1375

Abstract

The bending of profile plates is a critical process in various engineering applications, including automotive, aerospace, and shipbuilding industries. In simple circumstances, this profile plate bending machine is intended to make pan profiles and mosque dome profiles. This process’s precision and efficiency significantly impact the final product’s structural integrity and performance. Traditional methods of plate bending often face challenges such as uneven stress distribution, material deformation, and inefficiencies in production time. Recent advancements in mechanical engineering have highlighted the importance of understanding the factors that influence plate bending. Among these factors, the rotational speed affects the dynamic forces applied during the bending process, which influences the degree of deformation and the quality of the bend. Similarly, the profile eye shape determines the plate’s contact area and stress distribution, impacting the bending outcome. Although these factors are recognized as important, there is a lack of comprehensive experimental studies that systematically investigate their combined effect on plate bending. This research aims to fill this gap by investigating how varying rotational speeds and different profile eye shapes affect the bending of profile plates. Understanding these relationships, can optimize the bending process, improve product quality, and enhance manufacturing efficiency. This study will provide valuable insights for engineers and manufacturers, enabling them to make informed decisions about the design and operation of bending equipment. Ultimately, this research will contribute to developing more efficient and precise bending techniques, benefiting a wide range of industrial applications.
Design and simulation of a fan-shaped banana cutting machine Dian Panutan; Mustaza Ma'a; Agus Wijianto; Roni Novison
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1518

Abstract

The fan-shaped banana cutting machine is an innovative solution for banana processing that focuses on mechanical efficiency without using complicated electronic sensors. The machine has four main mechanisms consisting of cutting, pushing, conveyor, and a rotating plate mechanism. The cutting mechanism uses four sharp blades to slice each banana into five fan-shaped pieces, with an average banana weight of 100 grams. The machine can cut up to 30 bananas per minute with a pulley speed of 30 RPM, making it fast and consistent. The pushing and conveyor mechanism work together to move the bananas into position for cutting and transport the slices smoothly. The rotating plate is designed to collect up to five sliced bananas in one cycle. This study explains the design and testing process using motion analysis software to make sure the machine works well. The simulation looked at the movement, power use, and efficiency of each mechanism of the machine. The results showed the total power needed is 4.4 Watts, with 2.4 Watts for cutting mechanism, 0.12 Watts for the pushing mechanism, 1.26 Watts for the conveyor mechanism, and 0.62 Watts for the rotating plate mechanism. A 0.25 HP motor with a speed reducer (1:47 ratio) was chosen to run the machine efficiently.The design focuses on mechanical systems, making it simple and reliable for small-scale production. This machine is a cost-effective and practical option for improving productivity in banana processing. The study provides a strong foundation for future mechanical innovations in food processing technology.
Analysis of Von Mises Stress, Deformation, and the Effect of Load Variations on a Motorcycle Tube-Type Shock Absorber Using the Finite Element Method Mustaza Ma'a; Rahmat Olvaries; Mhd. Zacky Hidayat; M. Izzuddin Syahputra; Gari Primananda
Aptek Vol. 18 No. 2 (2026): Jurnal Apliksai Teknologi (APTEK): Volume 18, No. 02, Juni 2026
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v18i2.4183

Abstract

Shock breaker tabung merupakan komponen utama pada sistem suspensi sepeda motor yang berfungsi meredam getaran dan menjaga kestabilan kendaraan. Penelitian ini menganalisis pengaruh variasi beban, arah pembebanan, dan posisi pembebanan terhadap tegangan dan deformasi shock breaker tabung melalui pemodelan numerik. Hasil menunjukkan bahwa peningkatan beban dari 800 N, 1000 N, hingga 1200 N menyebabkan kenaikan tegangan maksimum masing-masing sekitar 92 MPa, 115 MPa, dan 138 MPa, sedangkan deformasi bertambah dari 1,78 mm, 2,23 mm, hingga 2,67 mm. Arah pembebanan vertikal menghasilkan tegangan dan deformasi paling rendah dibandingkan pembebanan miring. Posisi pembebanan di tengah menghasilkan distribusi tegangan lebih merata dibandingkan pembebanan di tepi. Secara keseluruhan, kondisi paling stabil diperoleh pada beban 1000 N dengan arah pembebanan vertikal dan posisi pembebanan di tengah karena memberikan nilai tegangan dan deformasi yang masih terkendali. Hasil penelitian ini dapat menjadi acuan dalam perancangan dan evaluasi shock breaker pada sistem suspensi, serta mendorong penelitian lanjutan yang melibatkan analisis dinamis dan pengujian eksperimental.
Studi Eksperimental Pengaruh Porositas Strainer Terhadap Getaran Pada Sistem Perpipaan Michael Douglas Tampubolon; Amnur Akhyan; Mustaza Ma'a; Fortinov Akbar Irdam
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 1 (2026): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i1.4518

Abstract

Strainer merupakan alat penyaring dalam sistem perpipaan industri migas yang berfungsi melindungi peralatan dari partikel kotoran. Penelitian ini bertujuan menganalisis pengaruh porositas strainer terhadap getaran melalui pendekatan eksperimental. Enam konfigurasi strainer diuji dengan variasi pola lubang (staggered dan straight), diameter (3 mm, 4 mm, dan 6 mm), serta porositas 25% hingga 40%. Staggered 6 mm (porositas 40%) menunjukkan performa terbaik dengan amplitudo lebih rendah yaitu 0.096 mm dan frekuensi 58.545 Hz pada debit maksimum yang menunjukkan kestabilan jika dibandingkan dengan menggunakan strainer. Temuan ini menunjukkan bahwa pemilihan porositas dan pola lubang strainer yang tepat berpotensi meningkatkan kestabilan aliran dan mengurangi potensi penyumbatan pada sistem perpipaan.
Distribusi Panas pada Mesin Pengering Biji Kakao Berbasis Simulasi CFD dengan Variasi Sudut Ventilasi dan Kemiringan Corong Mustaza Ma'a; Rahmat Olvaries; Raffi Putra Pratama; Ahmad Jheant By Haqy
Aptek Vol. 18 No. 1 (2025): Jurnal Apliksai Teknologi (APTEK): Volume 18, No. 01, Desember 2025
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v18i1.4126

Abstract

Pengeringan biji kakao merupakan tahap pasca panen yang sangat penting dan sangat mempengaruhi kualitas akhir produk, namun proses pengeringan konvensional masih menghadapi masalah distribusi panas yang tidak merata yang mempengaruhi kualitas dan efisiensi energi. Studi ini menganalisis pengaruh variasi sudut ventilasi dan kemiringan corong terhadap distribusi suhu dan pola aliran udara dalam mesin pengering biji kakao. Metode yang digunakan adalah simulasi Computational Fluid Dynamics (CFD) berdasarkan analisis transfer panas dan aliran fluida dengan variasi sudut ventilasi 45°, 60°, dan 80°, serta sudut kemiringan corong 104°, 115°, dan 121°. Sudut ventilasi 45° menghasilkan distribusi temperatur paling merata akibat aliran udara panas yang menyilang dan waktu tinggal udara yang lebih panjang di dalam ruang pengering dan kemiringan corong 104° disarankan karena dapat menghasilkan aliran udara yang stabil dan distribusi suhu yang lebih seragam. Temuan ini menunjukkan bahwa mengoptimalkan geometri ventilasi dan corong secara signifikan meningkatkan kinerja termal mesin pengering, sehingga meningkatkan efisiensi proses dan kualitas pengeringan biji kakao.
Perencanaan Peningkatan Kapasitas Mesin Penanam Padi Berbasis Sintesis Kinematika Dan Dinamika Samuel Tabah Penemuan Parulian Silalahi; Agus Wijianto; Jupri Yanda Zaira; Mustaza Ma'a
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.253

Abstract

Rice is a food crop commodity that plays a vital role in the Indonesian economy. The results of this study indicate that the designed system is capable of consistently maintaining a 25 cm spacing between seedlings through the harmonic motion of the planting arm. The angular and linear movements of the entire linkage are stable and periodic, resulting in a uniform planting process. The angular velocity of the main shaft is recorded as constant, supporting rotational stability, while the maximum motor torque is within a realistic range for field applications. The system also demonstrates good mechanical efficiency, characterized by stable kinetic energy of the rotational components and controlled motor power consumption. These findings have practical significance for practitioners and the agricultural machinery industry, as they can serve as a reference for the development of rice transplanters that are more energy efficient, highly precise, and suited to rice field conditions in Indonesia, thus potentially increasing productivity and reducing reliance on manual labor.
Co-Authors Agus Wijianto Agus Wijianto Ahmad Jheant By Haqy Amnur Akhyan Dian Panutan Fortinov Akbar Irdam Gari Primananda Jupri Yanda Zaira M. Izzuddin Syahputra Mhd. Zacky Hidayat Michael Douglas Tampubolon Novison Roni Prawira Yuda Raffi Putra Pratama Rahmat Olvaries Roni Novison Samuel Tabah Penemuan Parulian Silalahi Yanda Zaira Jupri