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Perancangan Checking Fixture Sebagai Alat Inspeksi Komponen Underwing Tank Enclosure Pada Pesawat Fixed-Wing Kusuma, Samuel Surya; Hendaryanto, Ignatius Aris; Prayoga, Benidiktus Tulung; Winarno, Agustinus
Jurnal Teknik Mesin Indonesia Vol. 20 No. 1 (2025): Vol. 20 No. 1 (2025): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v20i1.884

Abstract

The underwing tank enclosure is a component of fixed-wing aircraft that was originally manufactured by a Spanish aerospace company, so all the tools and references were not available to the Indonesian aerospace company, one of which is the inspection process tool. This study aims to design a checking fixture to meet requirements and support the production process of the underwing tank enclosure component, ensuring efficient and compliant inspection processes for the Indonesian aerospace company. The research utilized CAD software to design the checking fixture and CAE software to analyze the structural strength of the main fixture frame using the Finite Element Method (FEM). The results include a checking fixture design employing checking pins to validate the dimensional contours of the underwing tank enclosure against specified geometric specifications. Structural strength analysis revealed a maximum Von Mises stress of 1,1119 MPa, a maximum deformation of 0,0074696 mm, and a minimum safety factor of 211,34, while the checking plate deformation analysis shows that the longitudinal checking plate component only experiences a maximum deformation of 0,0010525 mm, confirming that the main structural frame of the checking fixture and checking plate components are safe for use. Keywords: Design, Checking fixture, Inspection, FEM.
Perancangan Chassis Rail Transfer Trolley dengan Kapasitas 970 kg Pramudita Januarki; Widia Setiawan; Benidiktus Tulung Prayoga; Agustinus Winarno
Jurnal Mekanik Terapan Vol 6 No 1 (2025): April 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i1.6843

Abstract

Perubahan tata letak material secara manual dengan bantuan peralatan transpotasi rail tranfer traolley dalam industri manufaktur menciptakan pengurangan biaya produksi. Hal ini terjadi pada salah satu industri manufaktur di mana muncul kebutuhan kelancaran proses suplai komponen menuju robot welding station baru. Komponen yang harus disuplai bermassa sekitar 970 kg dengan dimensi berkisar 3440 mm × 955 mm × 180 mm. Jarak asal komponen menuju station hanya sekitar 18 m. Massa yang berat menjadi penghambat jika ditangani tenaga manusia sehingga  perlu dilakukan perancangan alat rail transfer trolley. Penelitian terdahulu sudah melakukan perhitungan elemen mesin rail transfer trolley namun belum ada yang mengkaji sasisnya secara mendalam. Peneletian ini merancang chassis rail transfer trolley dengan analisis perbandingan variasi bentuk penampang material SS400 menggunakan finite element analysis. Dengan berbagai bentuk penampang profil seperti hannel, I-section dan hollow rectangular. Analisis yang dilakukan bertujuan untuk mengetahui faktor keamanan dan penampang chassis yang paling kuat. Hasil penelitian menunjukkan ketiga variasi penampang chassis memenuhi safety factor minimum 4. Chassis berpenampang I-section memiliki nilai von mises stress terendah yaitu 24,61 MPa dengan nilai safety factor tertinggi yaitu 9,96. Data yang diperoleh dapat digunakan sebagai referensi dalam menentukan material untuk chassis rail transfer trolley.
Evaluasi Efisensi Riser Untuk Bentuk Riser Samping yang Berbeda Menggunakan Metode Simulasi Casting Bahari, Galuh; Tulung Prayoga, Benidiktus
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1930

Abstract

As the solidification reaches the hot spot area, no molten metal remains and shrinkage is formed. To anticipate the shrinkage, a riser is added to the casting system. An optimal riser design would produce free shrinkage components. One of the factors that affect riser efficiency is the riser shape. This study aims to find the most efficient side riser shape by using simulation software. The riser shape of tubes, tubes with a half sphere on top, hemispheres, conical tubes, tubes with an oval cross-section, and cubes are used in this experiment, with the volume of all risers kept constant. The most efficient shape of the riser is the tube. The tube riser produces a larger modulus. The tube riser generated directional solidification. The same pattern can be seen in the niyama criteria and solidification temperature, where the tube riser has a more continuous pattern compared to other riser shapes.
EVALUATION OF GEOMETRIC ERROR OF CUSTOMIZED CNC MILLING MACHINE TOOLS ACCORDING TO ISO 10791-7 Prayoga, Benidiktus Tulung; Hendaryanto, Ignatius Aris; Winarno, Agustinus
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1878

Abstract

Due to open technology, there exists an abundance of inexpensive information accessible for study. One such piece of information pertains to customization or do-it-yourself (DIY) CNC milling machines. However, customized milling machines often suffer from several limitations, including a lack of component dimension accuracy, inappropriate interaction between components, low rigidity, and control system problems, all of which can impact the cutting performance and accuracy of the workpieces. This study aimed to measure the extent of these impacts on the accuracy of the workpieces. The errors in customized CNC milling machines were identified using a ball-bar system and cutting tests conducted according to ISO standards. The results of this study concluded that improvements must be made to the interaction between machine components to reduce geometric errors to levels acceptable according to standards. This customized CNC milling shows promise for machining workpieces with an accuracy of ± 0.2 mm.
Aplikasi Alat Bantu Mesin Bubut untuk Pengerjaan Spinning Ridwan, Mohd; Darmanto, Seno; Prayoga, Benidiktus Tulung; Hadi, Syamsul
Jurnal Pengabdian Vokasi Vol 4, No 1 (2025): Juni 2025
Publisher : Sekolah Vokasi Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpv.2025.31114

Abstract

The potential, opportunities, and advantages of Banaran Village, Cepogo District, Boyolali should serve as capital and driving force in driving a people's economy based on local wisdom and national orientation. In addition to promoting the metal carving industry sector, other potentials and advantages of Banaran Village, Cepogo, Boyolali include highland agriculture, historical heritage, arts and culture, natural scenery, reservoirs/reservoirs, and service potential. The solutions implemented in this activity are principally based on the potential and constraints faced by partners, especially Tumang Village, Banaran, Cepogo District, Boyolali. The relatively large and labor-intensive potential of small and medium industries in Tumang will be encouraged to open themselves to the potential of the accompanying economy in addition to the main sector, namely copper carving products and the like, by implementing lathe-based spinning machines covering education, arts and culture, tourism, agriculture, and other superior economic products. In addition, these potentials, opportunities, and advantages will be encouraged with good management and governance patterns so that community movements can also stimulate the economic movements of the surrounding community