388 Result(s)
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Article
Multi-innovation-based online variable projection algorithm for a class of nonlinear models
Separable nonlinear models (SNMs) serve as potent instruments for system identification, data analysis, and machine learning. However, the online identification of SNMs poses a greater challenge compared to th...
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Article
A continuous contact-force model for the impact analysis of viscoelastic materials with elastic aftereffect
The elastic aftereffect phenomenon of viscoelastic materials under low-velocity impact has been widely observed in practical engineering. This paper proposes a new approximated solution for the Wang model, whi...
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Article
Parameter identification of fractional-order systems with time delays based on a hybrid of orthonormal Bernoulli polynomials and block pulse functions
In this paper, we present effective and efficient identification methods with a higher accuracy for fractional order system (FOS) with time delays and nonzero initial condition. We construct a new hybrid of or...
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Article
Research on Path Tracking Control Based on Optimal Look-Ahead Points
Pure pursuit tracking algorithms are a popular control method in the field of autonomous navigation, where the selection of a look-ahead point plays a crucial role in tracking performance. However, the computa...
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Article
Image encryption algorithm based on COA and hyperchaotic Lorenz system
Aiming at the problems of weak security and susceptibility to violent cracking in traditional image encryption algorithms, this paper presents a novel image encryption algorithm based on the Coyote Optimizatio...
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Article
A novel (2+1)-dimensional Sawada-Kotera type system: multisoliton solution and variable separation solution
A novel (2+1)-dimensional system of the Sawada-Kotera type is considered. The existence of three-soliton and four-soliton solutions with wave number constraints is confirmed. Other interesting solutions, such ...
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Article
Research on vibration spectral structures of planetary gearboxes based on a universal equation of phenomenological modeling
A variety of factors such as time-varying transfer paths, planet shifts, etc., can induce additional modulation sidebands in the spectrum of planetary gearboxes. Most of previous work only considers the effect...
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Article
Constructing dynamic S-boxes based on chaos and irreducible polynomials for image encryption
Inspired by the Arnold chaotic map, we design a new generation formula for constructing S-boxes, which effectively integrates the characteristics and advantages of chaos map and algebraic model and lays a good...
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Article
Formation and propagation dynamics of peakons and double-hump solitons of the generalized focusing/defocusing NLS equations with \(\varvec{\mathcal{P}\mathcal{T}}\) -symmetric \(\varvec{\delta }{} \mathbf{(x)}\) -sech optical potentials
In this paper, we investigate several important properties of the generalized nonlinear Schrödinger equation with \(\mathcal{P}\mathcal{T}\) ...
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Article
A nonlinear model for dynamic performance analysis of gas foil bearing-rotor system considering frictional contacts
The dynamic behaviors of gas foil bearing-rotor system are greatly affected by the dam** resulting from friction inside foil structure. However, challenges exist in theoretical study when introducing the fri...
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Article
Fast finite-time secure control for nonlinear systems under dynamic event-triggered mechanism
This paper addresses the fast finite-time secure control problem for the nonlinear system in the presence of the deception attacks. Firstly, in order to suppress the deception attacks more rapidly, the secure ...
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Article
Open AccessTraction power systems for electrified railways: evolution, state of the art, and future trends
Traction power systems (TPSs) play a vital role in the operation of electrified railways. The transformation of conventional railway TPSs to novel structures is not only a trend to promote the development of e...
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Article
Oceanic internal solitary wave interactions via the KP equation in a three-layer fluid with shear flow
The various patterns of internal solitary wave interactions are complex phenomena in the ocean, susceptible to the influence of shear flow and density distributions. Satellite imagery serves as an effective to...
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Article
Reducing shimmy oscillation of a dual-wheel nose landing gear based on torsional nonlinear energy sink
Shimmy is described as a self-induced oscillation for the landing gear which is a threat to the handing quality and safety of aircraft taxiing on the ground. This paper proposes a novel torsional nonlinear ene...
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Article
Statistical information of low-dimensional processes hidden in random state data
For stochastically excited dissipative dynamical systems, the low-dimensional slowly varying processes act as the essential and simplified description of the apparent high-dimensional fast-varying processes (i...
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Article
Anhysteretic high-static–low-dynamic stiffness vibration isolators with tunable inertial nonlinearity
This study proposes an anhysteretic high-static–low-dynamic stiffness (HSLDS) vibration isolator with tunable nonlinear inerters. The aim is to overcome the drawbacks of conventional HSLDS vibration isolators....
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Article
Evolution and control technology of energy aggregation and dissipation of a high hard roof during breakage and destabilization
The focus of this study was prevented disasters caused by the breaking of high hard roofs (HHRs) in mines. A model of the mining load-bearing capacity of a HHR cantilever beam structure (HHRCBS) was developed ...
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Article
Shimmy dynamics in a dual-wheel nose landing gear with freeplay under stochastic wind disturbances
Shimmy dynamics of a dual-wheel nose landing gear system with torsional freeplay under stochastic lateral wind disturbances is studied. Dynamic characteristics of the deterministic case are numerically analyse...
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Chapter and Conference Paper
Full Four-Door Universal Handing JIG and Products Based on MTP System
In the process of multi-vehicle door collinear flexible production in the automobile companies, the handing tools are dedicated to ATC (automatic tool changer) and have complex structure, large area and comple...
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Chapter and Conference Paper
The Aerodynamic Development of Voyah Zhuiguang BEV Version
This article provides an overview of the aerodynamic development process of Voyah’s first sedan, zhuiguang bev version as an example. Firstly, the target is set through competitive analysis and from the vehicl...
