The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Recently, studies on artificial muscles that are linearly driven like human muscles and move smoothly and flexibly have been attracting attention. In this study, AMSSB (artificial muscle based on SMA spring bundle) driven by hot water and cool water is presented and its performance evaluation results are presented. It showed applicable performance to a robot by showing a power density of 1 kW/kg and...
This paper describes a soft composite actuator using a 3D-printed scaffold structure. The actuator consists of a scaffold structure embedded in the center and two wires embedded above and below the scaffold to generate motion. Each component is combined with a soft polymer, so it has the advantage of a soft morphing motion. When the wire is pulled, a bending based motion is generated, because of the...
Many optimization problems in recent engineering are complex and high-dimensional problems, a so-called Large-Scale Global Optimization (LSGO) problem, due to the increasing requirements for multidisciplinary approach. This paper proposes a novel Bare Bones Particle Swarm Optimization (BBPSO) algorithm to solve LSGO problems. The BBPSO is a variant of a Particle Swarm Optimization (PSO) and is based...
This paper presents a numerical analysis for kinematics of robot fish. The fish model in this paper is assumed to act as carangiform motion. The carangiform motion can be modeled as several serial links, and generally robot fish is composed of motors and links. In this research, some analysis has been performed for calculation of kinematics of robot fish. To do this, a geometrical numerical method...
A 5 kWh class FESS (flywheel energy storage system) with the operating speed range of 9,000~15,000 rpm has been developed. The system consists of a composite flywheel rotor, active magnetic bearings, a motor/generator and its controller. Because active magnetic bearings(AMB) to support the rotor vibration are open-loop unstable, they needs a feedback controller for stable operation. Digital controller...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.