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Review of Rotor Balancing Methods

open access: yesMachines, 2021
This review is dedicated to balancing methods that are used to solve the rotor-balancing problem. To ensure a stable operation over an operating speed range, it is necessary to balance a rotor. The traditional methods, including the influence coefficient
Liqing Li   +4 more
doaj   +1 more source

Survey on Energy Harvesting for Biomedical Devices: Applications, Challenges and Future Prospects for African Countries

open access: yesSensors, 2023
Self-powered biomedical devices, which are the new vision of Internet Of Things (IOT) healthcare, are facing many technical and application challenges.
Djakou Nekui Olivier   +4 more
doaj   +1 more source

Study on the Oil Film Force with Unlimited Length Oil Film of the Sliding Bearing and the ERSFD with Bosses

open access: yesMathematics, 2022
The research background is the elastic ring squeeze film damper. Four contact pressure models were established by analyzing the structural characteristics and movement, combined with the sliding bearing theory, including structural parameters and ...
Guoying Pang, Shuqian Cao, Yushu Chen
doaj   +1 more source

An Energy-Based Complex Brain Network Model—Part 1: Local Electrophysiological Dynamics

open access: yesDynamics, 2023
The human brain is a complex network of connected neurons whose dynamics are difficult to describe. Brain dynamics are the global manifestation of individual neuron dynamics and the synaptic coupling between neurons.
Chun-Lin Yang   +2 more
doaj   +1 more source

A Case Study of Combined Application of Smart Materials in a ‎Thermal Energy Harvester with Vibrating Action [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
This paper demonstrates a case study of a combined application of smart materials in a thermal energy harvester with vibrating action. The conceptual design of the harvester is based on a Shape Memory Alloy wire attached to the free end of a ...
Rosen Mitrev   +4 more
doaj   +1 more source

Strain Rate Effect on Mechanical Properties of the 3D-Printed Metamaterial Foams With Tunable Negative Poisson’s Ratio

open access: yesFrontiers in Materials, 2021
As a kind of metamaterial, the negative Poisson’s ratio foams, which expand (shrink) in the transverse direction when stretched (compressed) in the longitudinal direction, have many potential applications in fields such as aerospace and mechanical and ...
Di Gao   +9 more
doaj   +1 more source

Application and Assessment of Cooperative Localization in Three-Dimensional Vehicle Networks

open access: yesApplied Sciences, 2022
The trajectory planning and control of multi-agent systems requires accurate localization, which may not be possible when GPS signals and fixed features required for SLAM are not available.
Juan Carlos Oliveros, Hashem Ashrafiuon
doaj   +1 more source

Mechanically controllable nonlinear dielectrics [PDF]

open access: yesScience Advances, 2020
Control of nonlinear dielectrics can be realized by mechanical bending.
D. L. Ko   +12 more
openaire   +3 more sources

Dynamic Design of a Quad-Stable Piezoelectric Energy Harvester via Bifurcation Theory

open access: yesSensors, 2022
The parameter tuning of a multi-stable energy harvester is crucial to enhancing harvesting efficiency. In this paper, the bifurcation theory is applied to quantitatively reveal the effects of structural parameters on the statics and dynamics of a quad ...
Qichang Zhang   +4 more
doaj   +1 more source

Topological optimization of a variable cross-section cantilever-based piezoelectric wind energy harvester

open access: yesFrontiers in Materials, 2022
Wind energy is a typical foreseeable renewable energy source. This study constructs and optimizes a variable cross-section cantilever-based piezoelectric energy harvester for low-speed wind energy harvesting.
Kaiyuan Zhao   +4 more
doaj   +1 more source

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