Results 191 to 200 of about 14,460,464 (264)

Vibro-impact energy harvester for low frequency vibration enhanced by acoustic black hole

Applied Physics Letters, 2022
In this Letter, we propose an enhanced vibro-impact energy harvester using acoustic black holes (ABHs) for scavenging low-frequency vibration energy.
Liufeng Zhang, Xiao Tang, Zhao-ye Qin, Fulei Chu   +3 more
semanticscholar   +1 more source

Tuning of vibro-impact nonlinear energy sinks under changing structural parameters. Part 1

Strength of Materials and Theory of Structures
This paper studies the efficiency of vibro-impact nonlinear energy sink, that is, vibro-impact damper, in mitigating the primary structure vibrations, i.e., in reducing its total mechanical energy.
P. Lizunov, O. Pogorelova, T. Postnikova
semanticscholar   +1 more source

Design and Experimental Investigation of a Vibro-Impact Capsule Robot for Colonoscopy

IEEE Robotics and Automation Letters, 2023
Uptake of capsule endoscopy in the large intestine has been very limited due to both the risk of missed lesions and the often prolonged transit time, making it an unviable alternative to standard colonoscopy.
Jiajia Zhang, Yang Liu, Jiyuan Tian, D. Zhu, S. Prasad   +4 more
semanticscholar   +1 more source

The effect of friction on the dynamics of targeted energy transfer by symmetric vibro-impact dampers

Journal of Sound and Vibration
This study investigates the nonlinear dynamics of a symmetric vibro-impact nonlinear energy sink (VI-NES) subjected to dry friction, a crucial factor that remains insufficiently explored in previous research.
Balkis Youssef, A. Karoui, R. Leine
semanticscholar   +1 more source

Electrostatically Induced Programmable Vibro-Impact Motion in Multiple Degrees of Freedom

IEEE/ASME transactions on mechatronics
The unique asymmetric vibration motions of vibro-impact devices make them valuable in various robotics and industrial applications. However, achieving bidirectional vibro-impact motions in multiple degrees–of-freedom (DoF) remains challenging due to the ...
Chuang Wu, Guorui Li, Xing Gao, Krishna Manaswi Digumarti, Chongjing Cao   +4 more
semanticscholar   +1 more source

Singularities in vibro-impact dynamics

Journal of Sound and Vibration, 1992
Summary: The non-differentiable nature of vibro-impact dynamics can lead to breakdown of the global stable manifold theorem applicable to smooth dynamical systems. In one dimensional periodically excited system, the breakdown leads to the ``shredding'' of the stable manifolds, and this process is analyzed in detail.
openaire   +1 more source

Auxiliary Sliding Motions of Vibro-Impact Systems

Automation and Remote Control, 2020
In motion control systems, modes with more and more frequent switching are known. For systems with impacts (a certain class of impulse systems), an analog of these modes is motions with an infinite number of impact interactions occurring in a finite time. For such motions, a description in terms of smooth differential equations is proposed.
openaire   +1 more source

Actuation strategy characterizations of a vibro-impact crawling robot driven by dielectric elastomer actuators

Smart materials and structures (Print)
Vibro-impact crawling robots driven by the emerging dielectric elastomer actuators (DEAs) feature the advantages of reduced system complexity and bidirectional locomotion capability.
Chongjing Cao, Chuang Wu, Xiaozheng Li, Xing Gao   +3 more
semanticscholar   +1 more source

Vibro-impact systems

1998
We shall examine some aspects of impact theory for solids [60, 80, 103, 115], limiting the analysis to those points necessary to understand the processes occurring in vibro-impact systems, and generate mathematical models for them. We shall mainly be interested in the force changes and the kinematic characteristics of the motion of solids and their ...
openaire   +1 more source

Vibro-Impact Interaction of Ships With Ice

Volume 4: Fluid-Structure Interaction, 2008
Impact dynamic interaction of ships with solid ice or stationary rigid structures is a serious problem that affects the safe operation and navigation in arctic regions. The purpose of this study is to present two analytical models of impact interaction between ship roll dynamics and one-side rigid barrier. These models are the phenomenological modeling
I. F. Grace, R. A. Ibrahim
openaire   +1 more source