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International Journal on Smart Material and Mechatronics
ISSN 2356-5314 · Hasanuddin University · 54 articles in the index
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Journal Article
Effects of Stress Concentration on the Mechanical Properties of Carbon Fiber Reinforced Plastic
Mechanical properties of conventional CFRP plates with small holes were investigated systematically. Those artificial holes are considered to be rivet connection between CFRP and other materials. The machining holes were employed with different number (n=0-5) and different mode, e.g., parallel…
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Journal Article
Material Properties of High-Speed Steel Rolls
Recently, it has been required to improve the material properties of high-speed steel (HSS) rolls, because of the low wear resistance and low mechanical properties. To improve them, several new steels have been proposed, which have high wear resistance as well as excellent mechanical properties…
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Journal Article
Remotely Operated Vehicle for Surveilance Applications On and Under Water Surface
This paper presents the low cost hardware prototype of a Remotely Operated Vehicle (ROV) for surveilance applications. The vehicle is designed to make maneuvers under water and on surface of water, where its movement is guided remotely via a GHz-scale wireless communication system. The main…
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Journal Article
Microstructure and Mechanical Properties of Al-10Zn-4.5Mg-xCu Turbine Impeller Produced by Investment Casting
Aluminium alloy can be applied for a turbine impeller of Organic Rankine Cycle power plant that operates at temperatures below 150 oC. Aluminum turbine impeller can enhance efficiency of turbine due to light weight material. Al alloys was used for impeller due to good mechanical properties. Turbine…
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Journal Article
Material properties of Al-Si-Cu aluminium alloy produced by the rotational cast technology
The aim of the present study is to explore microstructural and mechanical properties of cast Al-Si-Cu aluminum alloy (ADC12). To obtain excellent material properties, the cast Al alloys were produced by an originally developed mold rotational machine, namely liquid aluminum alloy is solidified…
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Journal Article
Image-based Fuzzy Parking Control of a Car-like Mobile Robot
This paper develops a novel automatic parking system using an image-based fuzzy controller, where in the reasoning the slope and intercept of the desired target line are used for the inputs, and the steering angle of the robot is generated for the output. The objective of this study is that a robot…
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Journal Article
Obstacle Avoidance for Autonomous Locomotion of a Quadrotor Using an HPF
There is a concept called “kinodynamic motionplanning” which can consider kinematic constraints and dynamicconstraints simultaneously. In this paper, we test the proposedkinodynamic motion planning, which was confirmed in onlysimulations, by an actual experiment. The experiment assumesthat the…
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Journal Article
Localization of a Walking Robot Using a Laser Speckle Odometry
In this study, we propose a laser odometry tolocalize an underwater walking robot. In the laser odometryusing optical sensors, motion is estimated by tracking laserspeckle patterns. However, measurement error increases whenthe sensor is tilted. We describe the overview of our walkingrobot with the…
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Journal Article
Bicycle Frame Prediction Techniques with Fuzzy Logic Method
In general, an appropriate size bike frame would get comfort to the rider while biking. This study aims to predict the simulation system on the bike frame sizes with fuzzy logic. Testing method used is the simulation test. In this study, fuzzy logic will be simulated using Matlab language to test…
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Journal Article
Controlling Smart Green House Using Fuzzy Logic Method
To increase agricultural output it is needed a system that can help the environmental conditions for optimum plant growth. Smart greenhouse allows for plants to grow optimally, because the temperature and humidity can be controlled so that no drastic changes. It is necessary for optimal smart…
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Journal Article
Fatigue Life Prediction in Journal Bearing
Failure of fatigue is damaged materials where caused frequent load. Fatigue owing to some factors, which is Stress concentration on fatigue, Stress life, Effect size and surface, and Change properties of surface. The fatigue failure of a material is dependent on the interaction of a large stress…
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Journal Article
Control of a Quadrotor Equipped with a Fixed-wing by Tilting Some of Four Rotors
Abstract—Unmanned aerial vehicles (UAVs) are beingexpected to be used for the vegetational observation and theinformation collection of disaster sites. Especially, rotorcraftstypified by helicopters are attractive, because they are able tohover and achieve vertical take-off and landing…
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Journal Article
Finite Element Analysis for Active-force Control on Vibration of a Flexible Single-link Manipulator
The purposes of this research are to formulate theequations of motion of the system, to develop computationalcodes by a finite element analysis in order to perform dynamicssimulation with vibration control, to propose an effective controlscheme using active-force (AF) control a flexible…
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Journal Article
Simulation and Experimental Works of Quadcopter Model for Simple Maneuver
This study aims to create a simulated and experimental of aircraft movements for multirotor quadcopter. The research method is theoretical and experimental methods. For theoretical method consists of calculating the dynamics and kinematics. While the experimental method consists of the aircraft…
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Journal Article
Material Properties of Various Light Metals Produced by Heated Mold Continuous Casting
In the present work, an attempt was made to develop high quality cast aluminum alloys via a new casting technology, e.g., the heated mold continuous casting (HMC) with ultrasonic vibration (UV) process. With the UV process in the continuous casting process, fine and spherical grains were obtained…
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Journal Article
Experimental Observation and Analytical Modeling of Melting and Solidification during Aluminum Alloy Repair by Turbulence Flow Casting
This paper presents an overview on the state of the art of applicable casting technology for applications in the field of repairing Aluminium Alloy components. Repair process on the Aluminium sample using similar metal has been carried out to investigate the micro-structural effect. Joining occurs…
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Journal Article
Mechanical Properties of Coir Rope-Glass Fibers Reinforced Polymer Hybrid Composites
Natural fiber composites have been developed and taken more attention in the last decades. Coir fiber is the natural fiber which has been used as reinforcement of composites. This fiber is hybridized with glass fiber for reinforcement composite. In this paper, coir rope and glass fibers were…
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Journal Article
The Stabilization of Position and Attitude for a Blimp by a Switching Controller
In recent years, the development of unmanned air vehicles aiming at vegetation observation, information gathering of a disaster site, etc. is increasing. Among them, airships are attractive because of good energy efficiency and it is possible to be employed for a long time cruise. Especially, small…
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Journal Article
Smart Energy Materials of PZT Ceramics
To better understand the material properties of lead zirconate titanate (PZT) ceramics, the domain-switching characteristics and electric power generation characteristics have been investigated during loading and unloading by using various experimental techniques. Furthermore, the influence of…
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Journal Article
Manganese Ores from South Sulawesi: Their Potential Uses as Raw Materials for Metallurgical Industry
Characterization of manganese ores from Barru and Bone regencies of South Sulawesi has been conducted with the aim at clarification of their mineralogical and chemical composition for their potential uses as the raw materials for metallurgical industry. Mineralogical properties of the ores analyzed…