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PENGAPLIKASIAN ACCELEROMETER SEBAGAI FEEDBACK PADA ARM ROBOT 5 DOF (DEGREE OF FREEDOM) Sutisna, Setya Permana; Maulana, Erwin; Ahmad, Anton Royanto
ALMIKANIKA Vol 1 No 1 (2019): Januari
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i1.2005

Abstract

The automatic control system also able to implement using arm robot concept. In this research, 5 DOF (Degree of Freedom) arm robot control system using the close – loop control methode with the MPU 6050 Sensor which integrates the rotation of MG995 motor servo as feedback.Control of this robot using android – based aplication, the app send data of rotate angle for each servo motor which will rotate to a certain angle, afterward the data received by HC – 05 Bluetooth and the arduino UNO R3 process its data. Arduino UNO R3 microcontroller can control every rotation of each servo motor that integrated with an MPU6050 sensor with serial monitor communication to display the rotation of each servo motor. The test results obtained by the standard deviation value shows how large the sample diversity is. The result of this research show standard deviation correlation with the number of sample diversity. The higher standard deviation value will indicate more sample data spread (data diverse or varies), otherwise smaller standard deviation value will indicate homogenous sample data, and if standard deviation equals to zero it indicates sample has identical data. The highest standard deviation value from servo motor 1 is 5.20, servo motor 2 and 3 are 1.00, servo motor 4 is 2.89, and servo motor 5 is 2.9.
RANCANG BANGUN 4 DOF (DEGREE OF FREEDOM) UNDERWATER REMOTELY OPERATED VEHICLE (ROV) Rachmansyah, Yoki; Rahmat, Mamat; Ahmad, Anton Royanto; Nuraini, Aisyah Iadha
ALMIKANIKA Vol 1 No 1 (2019): Januari
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i1.2008

Abstract

In this research, the underwater robot designed is a type of mini Remotely Operated Vehicle (ROV) based on the Arduino Uno Atmega 328A microcontroller. This research was aimed to make a robot underwater or ROV and test its performance in water. This research was conducted to determine the system of tightness in the ROV by using a body that was used as a cover for each component in the ROV and tested its movement in the water. The design of mini ROVs is integrated in several design processes, namely planning the calculation of each component selection used by ROV, designing mechanical construction, designing electronic construction, and making integration of the entire design process. The results of this integration are in the form of a physical form of mini ROV, electronic systems, and graphical interface programs. The designed robot is an underwater robot that can move in water with the X, Y and Z axes. The ROV robot is made with a total dimension of 38 cm in length, 21 cm in width, and 22 cm in height. The body of the ROV is made using a base material from a PVC pipe that each gap is lined with a seal so that the ROV can be maintained properly. In the ROV movement system, use 2 propeller leaves to go forward and backward and 2 propeller leaves to drown or raise the ROV.
ANALISIS EKSERGI PADA TURBIN PLTP LAHENDONG SISTEM ORGANIC RANKINE CYCLE (ORC) KAPASITAS 500 KW Aji, Muhammad Idham Bayu; Gaos, Yogi Sirodz; Ahmad, Anton Royanto
ALMIKANIKA Vol 1 No 3 (2019): Juli
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i3.2351

Abstract

Seperti layaknya dua sisi koin, letak Indonesia yang berada di ring of fire memiliki keuntungan dan kerugian. Bencana seperti gempa bumi, gunung Meletus, erupsi, dan tsunami merupakan sisi gelap yang harus dihadapi rakyat Indonesia. Namun potensi energi yang tersimpan jauh lebih berharga untuk bisa digunakan oleh manusia. Panas bumi adalah salah satu sumber energi yang Indonesia miliki namun masih minim utilitasnya. Karakter dari sistem Organic Rankine Cycle (ORC) sangat cocok untuk lahan PLTP di Lahendong, Sulawesi. Maka dari itu dibutuhkan analisa eksergi agar setiap energi yang keluar dapat diketahui dan memperkecil losses atau energi yang terbuang terutama pada komponen turbin. Hasil analisa dengan pengambilan data secara acak pada bulan April - Juli 2018 pada turbin didapat hasil efisiensi eksergi paling rendah sebesar 56.24% pada suhu inlet 117oC dan suhu lingkungan 22oC. Sedangkan efisiensi paling besar 69.92% berada pada suhu inlet 133oC dan suhu lingkungan 33oC. Losses terbesar yaitu 175.83 kW, dan yang terkecil yaitu 130.78 kW. Dengan rata-rata efisiensi eksergi sebesar 64.29% dan losses yaitu sebesar 151.47 kW.