Qingzhen Han

ORCID: 0000-0002-1627-2938
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About
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Research Areas
  • Mechanical Engineering and Vibrations Research
  • Vehicle Dynamics and Control Systems
  • Advanced Battery Technologies Research
  • Electric and Hybrid Vehicle Technologies
  • Vibration Control and Rheological Fluids
  • Brake Systems and Friction Analysis
  • Industrial Technology and Control Systems
  • Mechanical Failure Analysis and Simulation
  • Chaos control and synchronization
  • Polymer Surface Interaction Studies
  • Fault Detection and Control Systems
  • Vibration and Dynamic Analysis
  • Consumer Market Behavior and Pricing
  • Microplastics and Plastic Pollution
  • Nonlinear Dynamics and Pattern Formation
  • Transportation Planning and Optimization
  • Electric Vehicles and Infrastructure
  • stochastic dynamics and bifurcation
  • Marine Biology and Environmental Chemistry
  • Energy, Environment, and Transportation Policies
  • Gear and Bearing Dynamics Analysis

Yangzhou University
2021-2025

Jiangsu University
2019

Marine biofouling is a major problem that contributes to the failure of man-made marine structures. Conventional antifouling coatings release heavy metal ions for antimicrobial purposes are no longer in line with today’s environmental issues. In this paper, layer-by-layer (LBL) self-assembled coating based on an addition reaction between polyvinylpyrrolidone (PVP) and phenols anchor pyrogallic (PG) effect stainless steel surfaces presented. For purpose, three phenolics were selected, their...

10.3390/jmse13030568 article EN cc-by Journal of Marine Science and Engineering 2025-03-14

Brake creep groan, a friction-induced nonlinear vibration in the brake system, has significantly contributed to reduction of ride comfort. In order mitigate force distribution strategy based on stick-slip curve is proposed and examined. The critical boundary limit cycle determined established as constraint condition. Focusing avoiding vibration, an adaptive particle swarm optimization method employed study between regenerative friction brake, with energy recovery efficiency serving objective...

10.1177/10775463241231348 article EN Journal of Vibration and Control 2024-01-30

The deterioration of vehicle dynamics caused by the simultaneous action time delay and interference is a key issue for switching control system in power-split hybrid electric (PS-HEV). This article presents an innovative compound method based on extended state observer (ESO) incorporating during mode transition process. First, coupling effect time-varying external disturbance typical process analyzed depth, double mechanism two effects ride comfort revealed. To accurately estimate under...

10.1109/tpel.2023.3268746 article EN IEEE Transactions on Power Electronics 2023-04-20

10.1016/j.ijnonlinmec.2023.104440 article EN publisher-specific-oa International Journal of Non-Linear Mechanics 2023-05-09

Abstract:The influence of the nonlinear terms on torsional dynamics powertrain is studied by adding stiffness and damping traditional linear Drive-shaft model powertrain.The existence verified experimental method.Based model, quantified obtained using Lagrange method.The stability condition bifurcation condition, fold Hopf bifurcation, vibration system with constant excitation are deduced.The averaged equations amplitude-frequency response equation during resonance method multi-scale.The...

10.3901/jme.2019.18.125 article EN Journal of Mechanical Engineering 2019-01-01

The aim of this study is to make a general exploration the dynamic characteristics permanent magnet synchronous motor (PMSM) with parametric or external perturbation. pitchfork, fold, and Hopf bifurcations are derived by using bifurcation theory. Simulation results not only confirm theoretical analysis but also show Bogdanov–Takens equilibrium. Dynamic behaviors, such as period three chaotic motion PMSM, analyzed diagram phase portraits. symmetric fold/fold bursting oscillation well two...

10.1155/2021/5535856 article EN Mathematical Problems in Engineering 2021-06-03

By establishing correlation coefficient matrix, huge sample data of second-hand car trading was processed so that, the irrelevant variables were deleted, as well missing and outlier values handled. Then, main have been extracted by using Xgboost algorithm. 13 36 major characteristic affecting price filtered out according to their importance ranking, which include mileage, tradeTime, brand, model et al. With selected independent dependent variable, BP neural network model, linear regression...

10.1117/12.2638739 article EN 2nd International Conference on Applied Mathematics, Modelling, and Intelligent Computing (CAMMIC 2022) 2022-05-17

The influence of the electromagnetic parameters on torsional dynamics electric vehicle powertrain is studied by considering electromechanical coupling effect. By adding torque drive side, simplified as nonlinear drive-shaft model. number, stability, and bifurcation conditions equilibrium points model are deduced. Based averaged equations amplitude-frequency response equation, stability conditions, such fold Hopf bifurcation, resonance curve discussed. simulation. It shown that with change...

10.1177/09544070211045054 article EN Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering 2021-09-06

The main purpose of this manuscript is to analyze the stability shock response electric vehicle (EV) powertrain when considering electro-mechanical coupling effect. nonlinear drive-shaft model built using Lagrange method, based on which equation also deduced. Meanwhile, number and properties equilibrium points are studied. Two kinds points, saddle node central point, can induce different dynamic behaviors found. simulation results show that trajectory may be unstable if parameters chosen in...

10.1177/16878140211037176 article EN cc-by Advances in Mechanical Engineering 2021-08-01
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