On the detachment from the ground of the walking locomotor’s foot of the mobile underwater robot

On the detachment from the ground of the walking locomotor’s foot of the mobile underwater robot

Evgeniy S. Briskin
Doctor of Physical and Mathematical Sciences, Professor, Volgograd State Technical University (VSTU), Head of Theoretical Mechanics Department, 28, pr. Leninа, Volgograd, 400005, Russia, tel.:+7(8442)24-81-13, This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6409-4208

Liliya D. Smirnaya *
Postgraduate Student, VSTU, 28, pr. Leninа, Volgograd, 400005, Russia, tel.:+7(8442)24-81-13, +7(903)376-59-05, This email address is being protected from spambots. You need JavaScript enabled to view it.  

Received 04 July 2019

Abstract
A special feature of mobile robots in general and walking in particular, moving along the bottom of reservoirs is the specific conditions of their movement. This is manifested in the action of the pushing force, the possible presence of a flow, an increased resistance to movement due to a more dense (compared to air) environment, a «compression» effect. The problem of the de-tachment of the foot of a mobile robot with walking locomotors from the ground was studied. The relevance of the problem is determined due to a number of advantages of using walking locomotor over other types of locomotors, on the one hand, and the need to reduce efforts in locomotors' drivers on the other. A mathematical model has been developed for the separation of a locomotor's foot from the ground, based on Henry's laws establishing the concentration of dissolved air in a liquid, the law of gas expansion at a constant temperature, Darcy's law on fluid filtration and the theorem on the motion of the center of mass of a solid body. The linearized model also allows obtaining analytical solutions. Direct and inverse problems are formulated, which differ in the fact that in one case the equation of the foot motion is defined and the force acting on it is determined, and in the othercase, the nature of the foot motion is established. The obtained results qualitatively correspond to the known experimental data. The established patterns make it possible to set tasks for the purposeful control of normal reactions acting on the feet of walking locomotors of underwater mobile robots or cargo of anchor-cable actuators through the use of structures that allow adjusting the permeability coefficient of the bottom soil through which the liquid is filtered.

Key words
Locomotor, underwater walking robot, pulling force, motion resistance force.

DOI

https://doi.org/10.31776/RTCJ.7306 

Bibliographic description
Briskin, E. and Smirnaya, L. (2019). On the detachment from the ground of the walking locomotor's foot of the mobile underwater robot. Robotics and Technical Cybernetics, 7(3), pp.215-223.

UDC identifier:
681.51

References

  1. Dorigo, M. et al. (2013). Swarmanoid: A Novel Concept for the Study of Heterogeneous Robotic Swarms. IEEE Robotics and Automation Magazine, 20(4), pp.60-71.
  2. Chaimowicz, L. et al. (2004). Experiments in multi-robot air-ground coordination. IEEE In-ternational Conference on Robotics and Automation, New Orleans, LA, USA, pp.4053-4058.
  3. Reardon, C. and Fink, J. (2016). Air-Ground Robot Team Surveillance of Complex 3D En-vironments. 2016 IEEE International Symposium on Safety, Security, and Rescue Robotics (SSRR) EPFL, Lausanne, Switzerland, pp.320-327.
  4. Reddy, B. and Chatterji, B. (1996). An FFT-based Technique for Translation, Rotation, and Scale-Invariant Image Registration. IEEE Transactions on Image Processing, 5(4), pp.1266–1271.
  5. Dilip K. Prasad, Chai Quek, Maylor K.H Leung and Siu-Yeung Cho. (2011). A parameter independent line fitting method. First Asian Conference on Pattern Recognition (ACPR), Beijing, China, pp.441-445.
  6. Harris, C. and Stephens, M. (1988). A combined corner and edge detector. Fourth Alvey Vision Conference, pp.147-151.
  7. Zenkevich, S. and Yushchenko, A. (2004). Osnovy upravleniya manipulyatsionnymi robotami [The Basics of Managing Robots]. Moscow: MSTU Publ., p.480. (in Russian).
  8. Zenkevich, S., Zhu Hua and Huo Jianwen. (2018). Experimental Study of Motion of the Mobile Robots Moving in the Convoy Type Formation. Mekhatronika, Avtomatizatsiya, Upravlenie, 19(5), pp. 331–335. (in Russian).
  9. Zenkevich, S., Nazarova, A. and Zhu Hua. (2019). Logical Control a Group of Mobile Robots. Smart Electromechanical Systems. Studies in Systems, Decision and Control, 174, pp.31–43.
  10. Zenkevich, S. and Nazarova, A. (2010). Combining Sensor Systems Data. Mekhatronika, Avtomatizatsiya, Upravlenie, 10(9), pp. 71–73. (in Russian).
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