Analysis and experiments on a novel smoothly moving low-DoF multilegged robot

Abstract

SmooBot, a novel low-degree-of-freedom multilegged robot with a smoothly moving platform is proposed in the paper, which is aimed at helping people do the delivery jobs in the industrial site. Cam compensation mechanisms are applied to the robot so the platform keeps smoothly moving while the robot is walking. With the special design of the compensation mechanism, the height, velocity, and attitude of the platform almost keep constant. The motion input of the compensation mechanism shares the same continuous rotation with the mechanical legs and remain the compact structure. The cam mechanisms are designed based on the kinematics analysis of the mechanical legs. The walking simulations and prototype experiments are carried out to testify the theoretical analysis. Based on the simulation and experiment results, the enhancements of the compensation mechanisms in the platform smoothness and the energy efficiency are discussed. The study in the paper provides a new idea to enable a low-degree-of-freedom multilegged robot to have a smoothly moving platform and to carry heavy load at a high speed by using the cam compensation mechanisms.

Keywords

SmooBot smooth walking low-degree-of-freedom multilegged robot cam compensation mechanism energy efficiency

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References

Raibert M, Blankespoor K, Nelson G, et al. Bigdog, the rough-terrain quadruped robot. In: Proceedings of 17th world congress: the international federation of automatic control, Korea, 2008, pp.10823–10825.

Fankhauser

Hutter

. ANYmal: a unique quadruped robot conquering harsh environments. Res Feat 2018; 126: 54–57.

Hodoshima R, Doi T, Fukuda Y, et al. Development of TITAN XI: a quadruped walking robot to work on slopes. In: Proceedings of IEEE international conference on intelligent robots and systems, Sendai, Japan, 2004, pp.792–797.

Sakagami Y, Watanabe R, Aoyama C, et al. The intelligent ASIMO: system overview and integration. In: Intelligent robots and systems, 2002, pp.2478–2483.

Bares

Dante

. technical description, results, and lessons learned. Int J Robot Res 1999; 18: 621–649.

Carbone G and Ceccarelli M. Legged robotic systems. In: Cutting edge robotics. Wien: ARS Scientific Book, 2005, pp.553–576.

Yang P and Feng G. Payload capability analysis of a new kind of parallel leg hexapod walking robot. In: International conference on advanced mechatronic systems, Luoyang, China, 2013, pp.541–544.

Chen

Gao

, et al. Spring parameters design for the new hydraulic actuated quadruped robot. J Mech Robot 2014; 6: 97–110.

Sugahara Y, Hosobata T, Mikuriya Y, et al. Realization of dynamic human-carrying walking by a biped locomotor. In: IEEE international conference on robotics and automation, New Orleans, LA, USA, 2004, pp.3055–3060.

10.

Liang

Ceccarelli

Takeda

. Operation analysis of a Chebyshev-pantograph leg mechanism for a single DOF biped robot. Front Mech Eng 2012; 7: 357–370.

11.

Ottaviano E, Ceccarelli M and Tavolieri C. Kinematic and dynamic analyses of a pantograph-leg for a biped walking machine. In: Climbing & walking robots, 2005, pp.561–568.

12.

Lokhande

Emche

. Mechanical spider by using Klann mechanism. Int J Mech Eng Comput Appl 2013; 1: 13–16.

13.

Kazami K, Suda S, Sato M, et al. Walking apparatus. Patent 6,238,264, USA, 2001.

14.

Stewart DES. Walking vehicle. Patent 4,662,465. 5, USA, 1987.

15.

Chiu C. On the design of a wave gait walking horse. Master Thesis, National Cheng Kung University, Taiwan, 1996.

16.

Chen P. On the mechanism design of 4-link and 6-link types wooden horse carriages. Master Thesis, National Cheng Kung University, Taiwan, 1998.

17.

Hwang K. On the design of an optimal 8-link type walking horse. Master Thesis, National Cheng Kung University, Tainan, Taiwan, 1997.

18.

Chen Y and Yan HS. On the design of a quadruped walking machine with a single actuator. Master thesis, National Cheng Kung University, Taiwan, 2003.

19.

Giesbrecht

Sepehri

. Design and optimization of an eight-bar legged walking mechanism imitating a kinetic sculpture, “Wind Beast”. T Can Soc Mech Eng 2012; 36: 343–355.

20.

Alexander

. Three uses for springs in legged locomotion. Int J Robot Res 1990; 9: 53–61.

21.

Bidgoly HJ, Vafaei A, Sadeghi A, et al. Learning approach to study effect of flexible spine on running behavior of a quadruped robot. In: Emerging trends in mobile robotics, 2010, pp.1195–1201.

22.

Park J, Lee J, Lee J, et al. Raptor: fast bipedal running and active tail stabilization. In: International conference on ubiquitous robots and ambient intelligence, Kuala Lumpur, Malaysia, 2014, pp.215–215.

23.

Ijspeert

. Central pattern generators for locomotion control in animals and robots: a review. Neural Netw 2008; 21: 642–653.

24.

Lim HO, Sugahara Y and Takanishi A. stabilization walking control for human-like biped robots. In: Romansy 14, Vienna, 2002, pp.471–480.

25.

Zhang ZG, Fukuoka Y and Kimura H. Stable quadrupedal running based spring-loaded two-segment legged on a model. In: IEEE international conference on robotics and automation, New Orleans, LA, USA, 2004, pp.2601–2606.

26.

Wu JX, Ruan Q, Yao YA, et al. A Novel skid-steering walking vehicle with dual single-driven quadruped mechanism. In: Mechanisms, transmissions and applications, 2015, pp.231–238.

27.

Ruan Q, Wu JX, Zhou SH, et al. Fluctuation compensation of a multi-legged walking platform using cam mechanism. In: Iftomm world congress, Taiwan, 2015, pp.1–5.

28.

Liu CH, Lin MH, Huang YC, et al. The development of a multi-legged robot using eight-bar linkages as leg mechanisms with switchable modes for walking and stair climbing. In: 3rd international conference on control, automation and robotics, Madrin, Spain, 2017, pp.103–108.

29.

Yan

. Creative design of mechanical devices, New York: Springer Science & Business Media, 1998.