The Underwater Dynamic Targets Coupled Hydrodynamic Field Characteristics of Flexible Motion Lateral Line Sensing
In order to realize the perception of underwater dynamic targets by flexible moving lateral line,the hydrodynamic field characteristics formed by the coupling of fish-like artificial lateral line and underwater moving target were studied.The computational fluid dynamics method was used to establish a coupling solution model for the robot fish swinging in situ sensing the target dipole source,and the influence relationship of the dipole source position,diameter,vibration direction and frequency on the coupled hydrodynamic field was simulated and analyzed.Furthermore,a simulation model of the dipole source of the bionic robot fish for autonomous pro-pulsion of the sensing target was established,and the perceptual localization characteristics of the dipole source with different vibration frequencies were studied.The results showed that the pressure value acquired by the pressure sensor array when the robot fish swings in place was inversely proportional to the distance,and proportional to the di-pole source diameter,maximum amplitude and vibration frequency.In autonomous propulsion,the frequency and posi-tion of the dipole source vibration could be predicted from the spectrogram of the pressure signal.
NETL
NSTL
万方数据
维普
