Journal of Bionic Engineering ›› 2022, Vol. 19 ›› Issue (1): 16-28.doi: 10.1007/s42235-021-00126-4

• • 上一篇    

A Design Concept and Kinematic Model for a Soft Aquatic Robot with Complex Bio‑mimicking Motion

Shokoofeh Abbaszadeh1, Roberto Leidhold1, Stefan Hoerner2   

  1. 1 Institute of Electrical Power Systems, Department of Electrical Engineering and Information Technology, OttoVon-Guericke University of Magdeburg, Universit?tsplatz 2, 39106 Magdeburg, Germany  2 Institute of Fluid Dynamics and Thermodynamics, Department of Process and Systems Engineering, Otto-Von-Guericke University of Magdeburg, Universit?tsplatz 2, 39106 Magdeburg, Germany
  • 收稿日期:2021-07-24 修回日期:2021-11-03 接受日期:2021-11-14 出版日期:2022-01-10 发布日期:2022-02-19
  • 通讯作者: Shokoofeh Abbaszadeh E-mail:abbaszadeh@ovgu.de
  • 作者简介:Shokoofeh Abbaszadeh1, Roberto Leidhold1, Stefan Hoerner2

A Design Concept and Kinematic Model for a Soft Aquatic Robot with Complex Bio‑mimicking Motion

Shokoofeh Abbaszadeh1, Roberto Leidhold1, Stefan Hoerner2   

  1. 1 Institute of Electrical Power Systems, Department of Electrical Engineering and Information Technology, OttoVon-Guericke University of Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany  2 Institute of Fluid Dynamics and Thermodynamics, Department of Process and Systems Engineering, Otto-Von-Guericke University of Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
  • Received:2021-07-24 Revised:2021-11-03 Accepted:2021-11-14 Online:2022-01-10 Published:2022-02-19
  • Contact: Shokoofeh Abbaszadeh E-mail:abbaszadeh@ovgu.de
  • About author:Shokoofeh Abbaszadeh1, Roberto Leidhold1, Stefan Hoerner2

摘要: Fish mortality assessments for turbine passages are currently performed by live-animal testing with up to a hundred thousand fsh per year in Germany. A propelled sensor device could act as a fsh surrogate. In this context, the study presented here investigates the state of the art via a thorough literature review on propulsion systems for aquatic robots. An evaluation of propulsion performance, weight, size and complexity of the motion achievable allows for the selection of an optimal concept for such a fsh mimicking device carrying the sensors. In the second step, the design of a bioinspired soft robotic fsh driven by an unconventional drive system is described. It is based on piezoceramic actuators, which allow for motion with fve degrees of freedom (DOF) and the creation of complex bio-mimicking body motions. A kinematic model for the motion’s characteristics is developed, to achieve accurate position feedback with the use of strain gauges. Optical measurements validate the complex deformation of the body and deliver the basis for the calibration of the kinematic model. Finally, it can be shown, that the calibrated model presented allows the tracking of the deformation of the entire body with an accuracy of 0.1 mm.

关键词: Unconventional drive system , · Biologically inspired robots , · Biomimetics , · Flexible robots

Abstract: Fish mortality assessments for turbine passages are currently performed by live-animal testing with up to a hundred thousand fsh per year in Germany. A propelled sensor device could act as a fsh surrogate. In this context, the study presented here investigates the state of the art via a thorough literature review on propulsion systems for aquatic robots. An evaluation of propulsion performance, weight, size and complexity of the motion achievable allows for the selection of an optimal concept for such a fsh mimicking device carrying the sensors. In the second step, the design of a bioinspired soft robotic fsh driven by an unconventional drive system is described. It is based on piezoceramic actuators, which allow for motion with fve degrees of freedom (DOF) and the creation of complex bio-mimicking body motions. A kinematic model for the motion’s characteristics is developed, to achieve accurate position feedback with the use of strain gauges. Optical measurements validate the complex deformation of the body and deliver the basis for the calibration of the kinematic model. Finally, it can be shown, that the calibrated model presented allows the tracking of the deformation of the entire body with an accuracy of 0.1 mm.

Key words: Unconventional drive system , · Biologically inspired robots , · Biomimetics , · Flexible robots