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All Journal PROSIDING SEMINAR NASIONAL Jurnal Ilmiah Sutet JIF
Abdul Hafid Paronda
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Civil Engineering, Building, Construction & Architecture Education Health Professions Materials Science & Nanotechnology Mechanical Engineering Neuroscience Public Health

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ANALISA STABILITAS TEMPERATUR ALUMUNIUM PADA FURNACE HEATER MESIN CASTING KURTZ Dedi Sunandar; Abdul Hafid Paronda; Setyo Supratno
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (112.456 KB)

Abstract

Proses   percetakan   bahan   logam   menjadi   suatu   produk   akan   selalu berhubungan dengan temperatur. Salah satu industri manufaktur pelek alumunium di Indonesia adalah PT.Pakoakuina, proses cetak pelek pada PT Pakoakuina menggunakan mesin Kurtz dengan sistem injeksi Low Pressure casting  (LPC).  Pada  sistem  injeksi  LPC  temperatur  alumunium  dinaikkan hingga mencapai 720ºC. Temperatur pada saat proses direkam menggunakan thermorecorder. Berdasarkan data produksi pada bulan Juli-Agustus 2016 dengan jumlah produksi sebesar 297.266 pelek, sebanyak 4.096 atau sebesar 1.4% pelek  Not  Good  (NG)  disebabkan oleh  temperatur tidak stabil.  Data kertas rekam temperatur (Folding chart) menunjukkan temperatur alumunium bergelombang. Berdasarkan analisa, temperatur bergelombang pada holding furnace disebabkan oleh sistem kendali heater bekerja on-off. Elemen pemanas listrik (heater) mendapatkan arus on-off sebesar 60Ampere, akibatnya temperatur alumunium tidak dapat stabil pada 720ºC. Selanjutnya dilakukan analisa dan penerapan sistem kendali heater menggunakan Silicon Control Rectifier (SCR) Regulator dengan penalaan parameter Proportional Integral and  Derivative  (PID).  Berdasarkan  hasil  perhitungan  menggunakan  kurva reaksi, parameter KP=4.25 , KI=220 dan Kd=55 mampu mengendalikan temperatur bergelombang dengan nilai error 1 ºC dan dapat menurunkan NG produk yang disebabkan temperatur alumunium sebesar 0.6 %. Keywords: Thermocontroller, PID, SCR Regulator,Heater
Robot Manipulator Pelontar Bola Pingpong Berbasis APP Inventor Dan Bluetooth Andi Hasad; Ali Musaffa; Abdul Hafid Paronda; Muhammad Amin Bakri
Sutet Vol 10 No 1 (2020): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/sutet.v10i1.1281

Abstract

Ping pong ball throwers are used as automatic ball shooters as a method of self-training and training the skills of professional athletes. By adding wireless communication, ping pong ball throwers can be controlled remotely. The controller interface is created using the App Inventor so that controllers can be carried out via smart phones. To get the ball throwing “service” required a combination of parameter values of the speed of the ejection motor and the angle of the servo motor.
Goniometer Pintar Untuk Observasi Gerak Lutut Pasien Pasca Tindakan Fiksasi Ego Octabery; Putra Wisnu Agung Sucipto; Abdul Hafid Paronda
Jurnal Ilmiah Fisioterapi Vol 4 No 02 (2021): Agustus
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (908.706 KB) | DOI: 10.36341/jif.v4i02.1978

Abstract

Goniometers are made of a material shaped like a curved ruler. The indentation of this goniometer marks the degree of opening of the knee joint. This degree of knee opening gives a large RoM value. This goniometer with a ruler-like shape has drawbacks, the drawback lies in the accuracy of repeated measurements when performing knee openings, recording the patient's knee openings on a regular basis, the patient cannot perform therapy independently. To be able to overcome this situation, alternative technology can help, namely making a goniometer with three main features, namely measuring the orientation of the knee movement direction, measuring the orientation of the knee movement direction based on the MPU-6050 sensors and Arduino Nano. The MPU-6050 sensor is a sensor that is used as the main tool for measuring the Range of Motion (RoM) of the knee joint. exercise guide interface, which is a feature with a function as a virtual physiotherapist who will guide patients to perform exercise movements independently. And a data bank system, where this feature is used to store all medical history data in this physiotherapy process. The test results show that an electronic goniometer can be designed and built that can measure the angle of achievement of leg extension in Range of Motion (RoM) exercises without the need to measure manually using a goniometer ruler with a fairly good accuracy with an overall tool error value of 1.774%. and the biggest error is 2.75%. The exercise guide interface, especially on the knee motion picture, experienced an error when the angle opening exceeded 95° and the data bank managed to save the patient's angle opening data.
Co-Authors Agung Sucipto, Putra Wisnu Ali Musaffa Andi Hasad Dedi Sunandar Ego Octabery Muhammad Amin Bakri Setyo Supratno