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All Journal Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan
Yunianto, Anton Hexso
Fakultas Teknik Universitas Maritim Raja Ali Haji
Computer Science & IT Electrical & Electronics Engineering

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Simulasi Kendali Pergerakan Mobile Robot Menggunakan Algoritma A-star dalam Menentukan Jarak Terpendek Suhendra, Tonny; Nugraha, Sapta; Yunianto, Anton Hexso; Uperiati, Alena
Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan Vol 6 No 1 (2017): Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan
Publisher : Fakultas Teknik Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1149.434 KB) | DOI: 10.31629/sustainable.v6i1.420

Abstract

Planning the path is one of the most important things in the world of robotics, especially autonomous robots, to be able to move the autonomous robot requires a path that will guide the movement, or steps to be taken next, can also be spelled out as the determination of the point of coordinates to be addressed so that the robot can move to destination by taking the nearest lane and guiding the robot not to take unnecessary steps. This research uses adaptive A-star algorithm as the shortest path finding algorithm, the algorithm used is the development of A-star algorithm so that it can perform path search gradually and done repeatedly to determine every step that must be taken robot in the future and this algorithm belongs to a simple algorithm in a family heuristic algorithm. The test environment is built using Netlogo 5.3.1 Application, an agent-based application developed by Uri Wilensky at the center for Connected Learning and Compute-based Modeling at Northwestern University. The results of the tests have shown that the adaptive A-star algorithm can perform the optimal shortest path search and not trapped in the optimal local conditions with a standard deviation of 0.422%.
Perhitungan Koefisien Drag dan Kooefisien Lift pada Lambung Kapal Katamaran Simetris (Symmetrical) dan Tidak Simetris (Asymmetrical) Yunianto, Anton Hexso; Suhendra, Tonny
Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan Vol 6 No 2 (2017): Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan
Publisher : Fakultas Teknik Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1151.735 KB) | DOI: 10.31629/sustainable.v6i2.426

Abstract

Catamarans (double hull) as the river and sea transport modes that are rapidly being developed today and will likely continue to grow in the future, especially in Europe, America, and East Asia. One thing that makes popular catamaran and successfully applied in the mode of transportation because of the availability of a wide deck area, more comfortable level of stability and security. Catamarans tend to have lower water draf than the monohull vessel with the same displacement, so that it can be operated in shallow waters. Then the hull shape as a slender hull can reduce the incidence of wave wash than a single hull ship (monohull). An object moving through a fluid will experience the net force of the fluid in the body. For gastric symmetry, this force will occur in the free flow direction of a drag (D). If the stomach is not symmetrical, there will also be a normal force against the free flow of an elevator (L). Numerical modeling shows that fluid flow is laminar, critical, and turbulent. This is indicated by the direction of the vorticity field and the fluid type mass distribution, the greater the flow rate the flow properties will become increasingly random or turbulent.
Co-Authors Alena Uperiati Sapta Nugraha Tonny Suhendra