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All Journal Jurnal Teknik Mesin Indonesia Specta Journal of Technology
Illa Rizianiza
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Specta Journal of Technology

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Perancangan Sistem Pengereman Mobil Menggunakan Mamdani Fuzzy Logic Control Illa Rizianiza; Alfian Djafar
SPECTA Journal of Technology Vol. 1 No. 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

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Abstract

Increase in the number of vehicles, especially cars can increase the chances of accidents. Accidents happen because caused by several factors, including human error, environmental and technical vehicle. Human error factor caused by the driver of the vehicle less focus so less appropriate in decision making at the time of driving. Therefore, vehicles that have technology that can reduce the occurrence of accidents. One technology of a potential car vehicle to be developed in order to reduce the number of accidents is the technology of the brakingsystem. Car braking system is the most important safety system that it has. This paper provides an automatic car braking system using Mamdani Fuzzy Logic Control. This car braking system consist of two inputs and one output. Inputs are car position and car velocity. Car position represents the distance of the car from the obstacle detected and velocity represents the velocity of the car towards the obstacle. This output is brake that represents the car force to stop the car. The inputs use five membership funtions and the output use three membership functions. The car braking system designed uses twenty five rules. Performance analysis of the braking system is carried out on the braking system's ability to avoid obstacles. The result is the vehicle can brake at a distance 30m vehicle from the obstacle. The vehicle braking system began to brake the vehicle at 2.5 s with 9263 N up to 3.7 s.
Studi Defleksi pada Struktur Batang sebagai Dasar Pemilihan Frame Kursi Roda Anak Alfian Djafar; Illa Rizianiza
SPECTA Journal of Technology Vol. 1 No. 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.55 KB)

Abstract

Penelitian ini dilandasi oleh adanya penggunaan Polyvinyl Chloride (PVC) sebagai material yang digunakan dalam pembuatan frame kursi roda. Kursi roda ini dikhususkan pada anak-anak, dimana berat badan anak dan berat robot kursi roda tidak melebihi 23 kg. Pipa PVC yang digunakan adalah jenis AW, schedule 40, dan schedule 80. Diameter pipa dibatasi pada diameter ½ in,3/4 in,1 in,1 1/4 in untuk masing-masing jenis pipa PVC. Tujuan penelitian ini adalah menentukan dimensi dari pipa PVC yang aman digunakan pada bobot yang telah ditentukan, berdasarkan analisis defleksi. Batas defleksi yang diizinkan untuk penggunaan pipa ini sebesar 0.938mm. Metode pendekatan teoritis dan menggunakan program simulasi LISA digunakan pada penelitian ini. Hasil penelitian menunjukkan bahwa dimensi pipa yang aman digunakan adalah pipa PVC jenis schedule 40 dan schedule 80. Defleksi PVC 1 1/4 in schedule 40 berdasarkan perhitungan teoritis sebesar 0.7614 mm dan 0.7610 mm berdasarkan simulasi LISA. Sedangkan PVC 1 1/4 in schedule 80 memiliki defleksi sebesar 0,6131 mmberdasarkan perhitungan teoritis, dan 0,6128 mm didapatkan dari hasil simulasi LISA. Dari penelitian ini, dipilih Pipa PVC 1 1/4 in schedule 40 sebagai material dalam perancangan dan pembuatan frame kursi roda.
Co-Authors Alfian Djafar Djafar, Alfian Haryono, Hadhimas Dwi Oddy Adam