Experimental investigation on a flapping beam with smart material actuation for underwater application

Govindarajan, G.; Sharma, R.

doi:10.1080/15376494.2019.1629047

Cited by 7 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…95 In addition to good flexibility and large driving force, MFC strikes a balance between the deformation and actuation force, which means that the additional magnifying mechanism is not required. Govindarajan et al 96 tested the performance of the MFC flapping beam underwater. They observed that the beam reached its maximum efficiency of 55% at the frequency of 2.0 Hz and the maximum thrust reached 45 mN.…”

Section: Pzt-based Robotic Fishesmentioning

confidence: 99%

A comprehensive review on fish-inspired robots

et al. 2022

International Journal of Advanced Robotic Systems

View full text Add to dashboard Cite

Recently, the increasing interest in underwater exploration motivates the development of aquatic unmanned vehicles. To execute hazardous tasks in an unknown or even hostile environment, researchers have directed on developing biomimetic robots inspired by the extraordinary maneuverability, cruising speed, and propulsion efficiency of fish. Nevertheless, the performance of current prototypes still has gaps compared with that of real fishes. In this review, recent approaches in structure designs, actuators, and sensors are presented. In addition, the theoretical methods for modeling the robotic fishes are consolidated, and the control strategies are offered. Finally, the current challenges are summarized, and possible future directions are deeply discussed. It is expected that the emergence of new engineering and biological technologies will enhance the field of robotic fish for further advancement.

show abstract

Section: Pzt-based Robotic Fishesmentioning

confidence: 99%

A comprehensive review on fish-inspired robots

et al. 2022

International Journal of Advanced Robotic Systems

View full text Add to dashboard Cite

show abstract

“…Expansion of the most common method is to use the bridge; according to the survey, on the market, the vast ShuWang bridge of the communication ability is very strong, we have chosen a very high cost performance digital bridge, when used correctly, and its effective communication distance is 9 km, 900 m more than communication ability in the process of actual use. Of course, it should be noted that the network bridge needs to be used in pairs, and its use angle is horizontal ±30 °, in the installation of the need to pay attention to the direction, in order to ensure the best use effect [20].…”

Section: Application Example and Effect Of Net Bridge In Fishmentioning

confidence: 99%

Development and Innovative Design Research of Underwater Bionic Fish Products under Hybrid Propulsion Technology

Xia

Hu²,

Liu

et al. 2021

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

For a long time, underwater robot has been used as a scientific research tool and a teaching platform, but the real application products have not been well explored. The successful case of UAV gives underwater robot a higher expectation. How to apply underwater robot and enter the market has become a hot spot of underwater robot research at present. This paper mainly introduces a bionic fish-shaped robot, redefines underwater robot with innovative thinking, determines product functions from the perspective of the market, and develops product functions and designs and realizes the structure of each part according to the existing scientific research experience. Main innovation points of this design are to adopt the way of the hybrid propulsion for underwater robot movement, through the form of a hybrid propulsion and long range and the contradiction between the rapid maneuver, at the same time of umbilical cord cable, using float design improvement, and through the highly integrated ground station for the system operation control.

show abstract

“…They found that the time‐varying flow had little effect on the propulsion performance of flapping wing. Ganesh et al [ 31 ] from the Indian Institute of Technology Madras applied macrofiber composite (MFC) to fabricate a bionic flapping wing and established the theoretical relationship model between the motion frequency and driving efficiency of a flexible flapping wing. When the motion frequency of the composite flapping wing is 2.0 Hz, the swimming efficiency is the highest.…”

Section: Introductionmentioning

confidence: 99%

Development and Performance Analysis of Pneumatic Soft‐Bodied Bionic Flipper

Zhao

Lim

et al. 2022

Adv Eng Mater

View full text Add to dashboard Cite

The sea lion fore flipper has superior underwater movement performance. Its structural characteristics and propulsion mechanism are drawn, combined with the large deformation and hyperelastic properties of silicone, a pneumatic soft‐bodied bionic flipper with strong underwater mobility, good environmental adaptability, and flexible attitude transformation. Based on Yeoh's second‐order constitutive model of silicone, the nonlinear dynamic analysis of the main limb of the bionic flipper is carried out, and the deformation analysis theoretical model is established. Then, the force analysis of infinitesimal and integral of the wing fin of the bionic flipper is analyzed by the blade element theory, to obtain the theoretical model of underwater propulsion dynamic performance. The superiority of the hydrodynamic performance of the bionic flipper is analyzed and confirmed using the bidirectional fluid–structure coupling numerical simulation algorithm. An experimental test platform is built to test the physical model of the bionic flipper. The motion and dynamic characteristics curves of the bionic flipper are obtained and compared with the corresponding numerical simulation results. The results show that the theoretical model and numerical simulation are accurate, and the structure is feasible, which can provide methods and references for the research and implementation of the underwater propeller.

show abstract

Experimental investigation on a flapping beam with smart material actuation for underwater application

Cited by 7 publications

References 17 publications

A comprehensive review on fish-inspired robots

A comprehensive review on fish-inspired robots

Development and Innovative Design Research of Underwater Bionic Fish Products under Hybrid Propulsion Technology

Development and Performance Analysis of Pneumatic Soft‐Bodied Bionic Flipper

Contact Info

Product

Resources

About