نتایج جستجو برای: carangiform fish
تعداد نتایج: 104013 فیلتر نتایج به سال:
In this paper, a novel design of a biomimetic robot fish is presented. Based on the propulsion and maneuvering mechanisms of real fishes, a tail mechanical structure with cams and connecting rods for fitting carangiform fish body wave is designed, which provides the main propulsion. Two pectoral fins are mounted, and each pectoral fin can flap separately and rotate freely. Coordinating the move...
Two-dimensional velocity fields around a freely swimming freshwater black shark fish in longitudinal (XZ) plane and transverse (YZ) plane are measured using digital particle image velocimetry (DPIV). By transferring momentum to the fluid, fishes generate thrust. Thrust is generated not only by its caudal fin, but also using pectoral and anal fins, the contribution of which depends on the fish's...
In this paper we explain the mechanical design of the robot herring that we have developed. The use of mechanical accumulators is a fundamental issue in the design of this robot. Two different types of mechanical accumulators are implemented and tested as a spine on the robot. We argue that using an Euler buckled spine, on a robot fish, will give more efficient robots and a naturally occurring ...
Today robotic creatures’ development has been utilized for several purposes. There have been inventions about animalliked aquatic robots, however few works were found relating to the study of full behavioral movement of aquatic animals; anguilliform, carangiform, subcarangiform and thunniform. This paper presents a study and design of a robotic fish that simulate locomotion pattern of aquatic a...
Intermuscular bones are found in the myosepta in teleosts. However, there is very little information on the development and ossification of these intermuscular bones. In this study, we performed an in-depth investigation of the ossification process during development in zebrafish (Danio rerio) and Japanese eel (Anguilla japonica). In Japanese eel, a typical anguilliform swimmer, the intermuscul...
This paper presents a new robotic fish, iSplash-OPTIMIZE, which is 0.6m in body length and deploys a single actuator to drive discrete links across the full-body length. The main focus is on optimizing the kinematics parameters of its linear carangiform swimming motion in order to improve the distance travelled per beat. The experimental results show that the fish can be actuated at high freque...
Efficient swimming of biologically carangiform robotic fish has been investigated by using a novel experimental method. The laboratory robotic fish model, which follows an exact replica of Saithe, is self-propelled on a servo towing system. The forward towing speed is determined by the fluid force acting on the robotic fish, as the fish undulates its body in the water. The importance of the sel...
This paper considers the design of mot ion control algorithms f o r robot fish. W e present modeling, control design, and experimental trajectory tracking results for an experimental planar robotic f ish system that is propelled using carangiform-like locomot ion. Our model for the fish’s propulsion is based o n quasi-steady fluid flow. Using this model, we propose gaits for forward and turning...
We employ numerical simulation to investigate the hydrodynamics of carangiform locomotion as the relative magnitude of viscous and inertial forces, i.e. the Reynolds number (Re), and the tail-beat frequency, i.e. the Strouhal number (St), are systematically varied. The model fish is a three-dimensional (3D) mackerel-like flexible body undulating with prescribed experimental kinematics of carang...
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