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All Journal Jurnal Rekayasa Mesin Jurnal Mema (Jurnal Mesin dan Manufaktur)
Oscar Haris
Politeknik Digital Boash Indonesia
Aerospace Engineering Automotive Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Perancangan dan Analisis Konstruksi Mekanik pada Robot Pemadam Api Hexapod Menggunakan Metode Finite Element Analysis dan Inverse Kinematics Oscar Haris; Taufik Rahman
Jurnal Rekayasa Mesin Vol 18, No 2 (2023): Volume 18, Nomor 2, Agustus 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i2.4017

Abstract

Fires often occur in dense urban areas, judging from their geographical location, urban areas that have dense populations which are areas prone to fire disasters which result in very difficult handling because the location is difficult to reach by fire engines. One of the countermeasures that can be done is by using a hexapod robot. In this research, the steps taken are by designing the mechanical construction of the robot using Autodesk Inventor Software and performing FEA analysis using Autodesk Inventor Stress Analysis Software, after that perform calculations and simulations of Inverse kinematic using RoboAnalyzer Software. The results obtained in this study are the dimensions of the hexapod SAR robot which is designed to have a total length of 145 cm, width 85 cm and height 85 cm, with a robot weight of 42.5 kg with a water tank capacity of 44.32 liters. The grip on the robot has a multifunctional type with a maximum load that can be lifted is 50 kg. The results of the inverse kinematic angle that can be used on the robot are coxa angle 0°, femur 45° and tibia -135°. In the FEA simulation, the largest von misess stress is 144.2 mpa and the largest safety factor value is 1.73 ul in the safe category. With the results of this study, it can be concluded that the robot can easily go in and out of the room during evacuation and has a safe construction design equipped with a strong grip in lifting loads and a flexible and efficient water sprayer.
UJI KINERJA TEKNIS DAN EFISIENSI PRODUKSI MESIN PERONTOK BIJI SORGUM (Sorghum bicolor L. Moench) DI PT SORGUM INDONESIA Muhamad Alfadilah; Yul Harry Bahar; Oscar Haris
Jurnal Mema (Jurnal Mesin dan Manufaktur) Vol. 1 No. 1 (2024): Oktober 2024
Publisher : Indie Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66865/hskts663

Abstract

Perontokan sorgum secara konvensional memerlukan tenaga besar, dan tenaga kerja yang banyak, diciptakannya perontok mekanis melalui proses manufaktur dengan kapasitas teoritis 150kg/jam. Tujuan penelitian adalah menguji kinerja teknis dengan uji verifikasi, uji kinerja teknis, dan uji ergonomi, mengukur efisiensi produksi, serta merekomendasikan pengujian mesin untuk memperoleh standarisasi. Pendekatan penelitian yang dilakukan adalah deskriptif eksplanatori dengan mengidentifikasi dan mengukur kinerja teknis mesin dan efisiensi produksi. Uji verifikasi didapatkan data melalui wawancara dan pengukuran langsung terhadap objek penelitian. Hasil uji kinerja mendapatkan hasil kapasitas aktual rata–rata sebesar 113,14kg/jam sehingga efisiensi kerja rata–rata sebesar 75,43%. Kebutuhan daya kerja mesin 861,12Watt dengan energi spesifik 7,67J/kg. Rataan tingkat kebisingan mesin 84,04dB. Tingkat getaran mesin sebesar 3,54 m/det2. Tata letak mesin optimal untuk kegiatan operasional produksi. Metode angkut beban kerja atau transportasi kerja menggunakan hand pallet. Rendemen rata–rata yang dihasilkan sebesar 67,4%. Rataan sorgum tidak terontok 0,86%. Rataan sorgum tercecer pada saat perontokan 5,94%. Rataan kehilangan hasil perontokan 6,8%. Limbah perontokan 25,32%. Hasil rataan perontokan yang tidak teridentifikasi 0,34%. Hasil uji dampak lingkungan tingkat kebisingan pada luar pabrik 41,7dB. tingkat kebisingan pada rumah terdekat sebesar 46,4dB. Penanganan limbah perontokan digunakan untuk pakan ternak dan limbah cair dialirkan ke drainase menuju kolam penampung. Kendala pada mesin perontok berupa besarnya susut tercecer, sehingga diberikan rancangan solutif berupa penutup corong keluar. Prosedur pengujian mesin perontok biji sorgum disampaikan berdasarkan Permentan nomor 05 tahun 2007
Co-Authors Muhamad Alfadilah Taufik Rahman Yul Harry Bahar