Improving performance: recent progress on vibration-driven locomotion systems

J Xu, H Fang - Nonlinear Dynamics, 2019 - Springer
Improving locomotion performance is the primary objective in studying vibration-driven
locomotion systems. In this paper, we report out recent progress within this topic from three …

Primary resonance analysis and vibration suppression for the harmonically excited nonlinear suspension system using a pair of symmetric viscoelastic buffers

X Sun, H Zhang, W Meng, R Zhang, K Li, T Peng - Nonlinear Dynamics, 2018 - Springer
To reduce the severity of high-magnitude vibrations and shock, end-stop buffers was used
for the most suspension cabs or seats of work vehicles. This paper employs a pair of …

[HTML][HTML] Speed optimisation and reliability analysis of a self-propelled capsule robot moving in an uncertain frictional environment

M Liao, J Zhang, Y Liu, D Zhu - International Journal of Mechanical …, 2022 - Elsevier
The dynamics of a self-propelled capsule robot for small-bowel endoscopy driven by its
internal vibro-impact excitation is studied in this paper. Due to its complex anatomy, the …

[HTML][HTML] Self-propelled capsule endoscopy for small-bowel examination: proof-of-concept and model verification

B Guo, Y Liu, R Birler, S Prasad - International Journal of Mechanical …, 2020 - Elsevier
This paper reports the experimental study of a vibro-impact self-propulsion technique
applying for small-bowel endoscopy by using a mesoscale capsule prototype, which is 56.9 …

The effect of friction on the vibro-impact locomotion system: modeling and dynamic response

KT Nguyen, NT La, KT Ho, QH Ngo, NH Chu… - Meccanica, 2021 - Springer
This paper shows a new study on the effect of various dry and isotropic friction levels on the
progression and dynamic response of a vibro-impact locomotion system. An experimental …

Vibration transmission and energy flow of impact oscillators with nonlinear motion constraints created by diamond-shaped linkage mechanism

W Dai, J Yang - International Journal of Mechanical Sciences, 2021 - Elsevier
This study investigates the dynamic behaviour and vibration transmission of impact
oscillators with nonlinear motion constraints. The proposed nonlinear motion constraint with …

Numerical study on the response scenarios in a vibro-impact single-degree-of-freedom oscillator with two unilateral dissipative and deformable constraints

G Stefani, M De Angelis, U Andreaus - Communications in Nonlinear …, 2021 - Elsevier
In this paper, some of the scenarios that can occur in the numerical nonlinear non-smooth
response of a vibro-impact single-degree-of-freedom system, symmetrically constrained by …

[HTML][HTML] Vibro-impact dynamics of an experimental rig with two-sided constraint and bidirectional drift

J Zhang, S Yin, B Guo, Y Liu - Journal of Sound and Vibration, 2024 - Elsevier
This paper demonstrates a theoretical and experimental study on a universal vibro-impact
system with bidirectional drift. With a dedicated experimental rig that is able to verify …

Dynamic analysis of a soft capsule robot self-propelling in the small intestine via finite element method

J Tian, KO Afebu, Z Wang, Y Liu, S Prasad - Nonlinear Dynamics, 2023 - Springer
To reduce potential trauma to the intestine caused by the rigid shell while also optimising its
progression efficiency, an elastomer coating was applied to a self-propelled capsule robot …

Influence of the gap size on the response of a single-degree-of-freedom vibro-impact system with two-sided constraints: Experimental tests and numerical modeling

G Stefani, M De Angelis, U Andreaus - International Journal of Mechanical …, 2021 - Elsevier
The large displacements caused by strong earthquakes in base-isolated structures
(buildings, bridges, strategic facilities, equipment,⋯) can excessively deform or damage the …