2,679 Result(s)
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Article
Trajectory tracking control for uncertain underactuated surface vessels with guaranteed prescribed performance under stochastic disturbances
The environmental disturbances acting on marine surface vessels are naturally stochastic. The control performance may be seriously deteriorated if the stochastic sea loads are ignored in control design. In thi...
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Article
Line-solitons of a three-component KP equation
In this paper, our goal is to study the line-soliton solutions of the three-component Kadomtsev-Petrovashvili equation. Its solution also represents the interaction between the three fluid layers. Firstly, we ...
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Article
Nonlinear vibration and stability analysis of a dual-disk rotor-bearing system under multiple frequency excitations
This paper aims to investigate the nonlinear vibration characteristics and stability of a dual-disk rotor-bearing system under multi-frequency excitations. A 4-degree-of-freedom dynamic model is established us...
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A chaotic image encryption algorithm based on sliding window and pseudo-random stack shuffling
This paper introduces a new one-dimensional chaotic system, which can be considered as an improvement upon the Bernoulli map. The Quadratic Bernoulli Chaotic System (QBCS) is introduced by replacing the linear...
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Article
Open AccessImpact Force Localization and Reconstruction via ADMM-based Sparse Regularization Method
In practice, simultaneous impact localization and time history reconstruction can hardly be achieved, due to the ill-posed and under-determined problems induced by the constrained and harsh measuring condition...
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Open AccessXK-III: A Spherical Robot with Redundant Degrees of Freedom
The spherical robot XK-III, designed with redundant degrees of freedom, addresses the limitations of existing pendulum spherical robot structures by enhancing mobility and environmental adaptability. A nonline...
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Article
Design and analysis of dual working area micro-hotplate based on thermal crosstalk
Micro-hotplates have provided the possibilities of miniaturization, low power consumption, and high integration for widespread application in MEMS sensors, such as the MEMS-based metal oxide gas sensors. Howev...
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Open AccessUnlocking wear resistance in an ultrastrong dual-phase high-entropy alloy by interface-constrained deformation of brittle Laves phases
The pronounced brittleness of hard Laves phase intermetallics is detrimental to their tribological properties at room temperature. In this study, we utilized a heterogeneous structure to engineer an ultrastron...
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A hybrid analytical-FEM model to predict machining response under oil-on-water MQL during high-speed milling of Ti-6Al-4 V alloy
Oil-on-water (Oow) is a promising cooling method to assist high speed milling of Ti-6Al-4 V which can achieve high efficiency and high quality. However, the high-speed milling of this difficult-to-cut material...
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Article
Experimental study of rock cutting characteristics of PDC cutter considering cutting effects of adjacent cutters
The in-depth and comprehensive understanding of cutting characteristics of cutter is the key basis for optimizing polycrystalline diamond compact (PDC) bit. Under down-hole condition, the rock cutting process ...
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Article
Shear strength and failure mode of self-piercing riveted similar and dissimilar materials
Self-piercing riveting (SPR) has been used to join similar and dissimilar materials for vehicle body application. In order to understand the failure mechanism and develop a method to estimate the shear strengt...
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Article
Electrochemical machining of multistage inner cone hole assisted by hydraulic self-driven rotating magnetic field
A multistage inner cone hole (MICH) consists of numerous inner cone holes of varying degrees of conicality and length and is frequently employed in diverse machinery. Due to the use of difficult-to-machine mat...
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Dynamic analysis and hardware implementation of multi-scroll Hopfield neural networks with three different memristor synapses
Neurons play an important role in forming behaviors and cognition through synaptic interactions. When organized into neural networks, these neurons can exhibit complex dynamic behaviors, such as multi-scroll a...
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Application of intelligent decision system based on artificial neural network in free forging of the engine main shaft
The engine main shaft forgings have high requirements for product consistency and reliability, which are difficult to be guaranteed by traditional manual free forging. On the basis of the already-in-place mach...
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Article
Frequency spectrum prediction model of broaching process using theoretical cutting force time history
The amplitude of tooth passing frequency in frequency spectrum is an important indicator to judge machining quality and tool wear. In comparison to the amplitude of tooth passing frequency in acceleration spec...
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Article
Stereo digital image correlation (3D-DIC) for non-contact measurement and refinement of delta robot arm displacement and jerk
This study proposes using the stereo digital image correlation (3D-DIC) method to measure the delta robot arm displacement and jerk to verify the robot arm end-effector position and improve the absolute accura...
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Article
Research on hybrid propulsion system with parallel power configuration: theory and experiment based on dynamics
With the increasingly serious problems of international energy shortage and environmental degradation, the adoption of hybrid energy forms represents an effective solution to these challenges and has been wide...
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Wear behavior and surface roughness analysis of carbide tools with varying coating for high-speed milling of compacted graphite cast iron
With stricter emissions regulations and higher engine performance demands, the high-quality processing of Compacted graphite cast iron (CGI) for the automotive industry has received more and more attention. Co...
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Article
Mechanisms and optogenetic control of rhythm slowing associated with Alzheimer’s disease: some views from dynamical modeling
This paper aims to explain and expand the dynamic mechanisms underlying the interesting but controversial experimental phenomena in the optogenetic regulation of Alzheimer’s disease (AD) from the dynamical mod...
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Article
Using a snow ablation optimizer in an autonomous echo state network for the model-free prediction of chaotic systems
The metaheuristic optimization algorithm (MHOA) is a type of automated tuning algorithm based on biological, physical or social behavior in nature that is widely used in the global optimization of complex prob...
