Author(s)

Peng Zhang^*, XinYue Zhou

Affiliation(s)

School of Mechanical Engineering, Chengdu University, Chengdu 610106, Sichuan, China.

Corresponding Author

Peng Zhang

ABSTRACT

Jumping robots have garnered significant attention from both academia and industry due to their superior obstacle negotiation capabilities and high mobility. The bionic frog-inspired jumping robot represents a pivotal research focus within this domain. This study initiates with a biological examination of frogs, identifying two critical factors governing their jumping performance: center-of-gravity adjustment and hindlimb movement. A simplified structural model of the frog is established to inform the structural design of the bionic robot. The kinematic analysis is then prioritized, specifically targeting the jumping actuation mechanism. An analytical method is employed to develop a mathematical model of the mechanism, investigating the patterns of its output displacement, velocity, and acceleration. MATLAB simulations are conducted to generate motion sequence diagrams of the mechanism and the curves illustrating the angular displacement, angular velocity, and angular acceleration of each linkage. The results validate the rationality and feasibility of the mechanism's design, thereby laying a theoretical foundation for subsequent structural optimization efforts.

KEYWORDS

Bionic frog robot; Structural design; Kinematic analysis; Jumping mechanism

CITE THIS PAPER

Peng Zhang, XinYue Zhou. Structural design and kinematic analysis of a bionic frog jumping robot. World Journal of Engineering Research. 2025, 3(4): 28-36. DOI: https://doi.org/10.61784/wjer3046. 

REFERENCES

[1] Men B, Fan X K, Chen Y X. Research status and development trends of bionic robots. Robot Technology and Application, 2019(5): 15-19.

[2] Lo J, Parslew B. Characterising the take-off dynamics and energy efficiency in spring-driven jumping robots. Mechanism and Machine Theory, 2024, 199. DOI: 10.1016/j.mechmachtheory.2024.105688.

[3] Tang G, Yang Q, Lian B. Design and Experimentation of Tensegrity Jumping Robots.Applied Sciences-Basel, 2024, 14(9): 18. DOI: 10.3390/app14093947.

[4] Wang G B, Chen D S, Chen KW, et al. Research status and development trends of bionic robots. Journal of Mechanical Engineering, 2015, 51(13): 27-44.

[5]  Gu Y C. Design and research of a bionic frog jumping robot. Dalian Jiaotong University, 2021.

[6]  Wang M. Development of a bionic frog jumping robot. Harbin Institute of Technology, 2011.

[7]  Lei B J. Kinematic simulation and landing impact process analysis of a bionic frog hopping robot. Zhejiang Sci-Tech University, 2017.

[8]  Lin F. Research on a posture adjustment device imitating the aerial movement patterns of frog hindlimbs. Harbin Institute of Technology, 2022.