Rigid Flexible Coupling Dynamics Research of the Flap Transmission Mechanism with Clearance Joints by Zhang Tao, Liu Geng, Ma Shangjun

“…In order to study the dynamic characteristics of flap transmission mechanism with clearance joints, based on an improved nonlinear normal impact force model with variable stiffness, and the elastic factor of connecting rod, the angular velocity and angular acceleration of the steering gear are simulated and analyzed with the conditions of different clearance joints （<italic>c</italic>=0、<italic>c</italic>=<italic>δ</italic> and <italic>c</italic>=1.6<italic>δ</italic>） , and different friction parameters （0.06、0.08 and 0.1）. …”
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Mixed Convection Squeezing Flow of Nanofluids in a Rotating Channel with Thermal Radiation by Wankui Bu, Hui Xu, Ilyas Khan, Sheikh Irfan Ullah Khan, Anwar Zeb

“…Water and ethylene glycol are the base fluids along with gamma-alumina nanoparticles. The coupled nonlinear system of PDEs is transformed into a system of ODEs with the support of some appropriate resemblance alterations. …”
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On the Inverse EEG Problem for a 1D Current Distribution by George Dassios, George Fragoyiannis, Konstantia Satrazemi

“…It is shown that the support is identified through the solution of a nonlinear algebraic system which is investigated thoroughly. …”
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SIZE EFFECT ON THE SNAP-THROUGH AND PULL-IN INSTABILITY OF THE ELECTROSTATICALLY ACTUATED MICRO SHALLOW ARCH by YUAN YanQi, KONG ShengLi, LU Fei

“…The snap-through and pull-in instability of the electrostatically actuated micro shallow arches incorporating Casimir force was investigated based on the modified couple stress theory. The nonlinear governing equation and boundary conditions were derived by using the principle of minimum total potential energy. …”
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OPTIMIZATION DESIGN OF INTERNAL GEAR PUMP BASED ON IMPROVED PARTICLE SWARM OPTIMIZATION by SUN YuanJing, QI ZhiYuan, ZHAO GuoChao

“…The simulation verification was carried out by MATLAB,and the results showed that the flow pulsation rate and the tooth shape parameters of the gear pump are nonlinear; Under the condition of satisfying the structural requirements and reasonable transmission,the flow pulsation rate of the gear pump is reduced by 7. 27%,and the flow pulsation of the internal gear pump is reduced.…”
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n-FFT COMPRESSED SENSING ALGORITHM OF SMART DIMENSIONALITY REDUCTION METHOD AND ITS APPLICATION IN FEATURE EXTRACTION AND CLASSIFICATION OF GEAR SYSTEM by CHEN Xiao, HUANG ChuanJin

“…But the signals of engineering practice are very complex,nonlinear,and non-stationary,Within the external noise interference coupled,makes the analysis and processing more difficult,which lead to the spectral analysis based on FFT method has been very limited. …”
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Response of a Two-Degree-of-Freedom Vibration System with Rough Contact Interfaces by Zhiqiang Huang, Xun Peng, Gang Li, Lei Hao

“…For this purpose, a two-degree-of-freedom model of a coupled seismic-vibrator-rough-ground system is proposed with which the nonlinear vibration properties are analyzed. In this model, the force-deflection characteristic of the contact interfaces is determined by finite element analysis. …”
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Rolling Bearing Fault Diagnosis Method based on EEMD Denoising and Correlation Coefficient Identification by Pei Junfeng, Sun Jianhua, Song Chuanzhi, Song Yupeng, Ge Huizhong

“…In view of the nonlinear,non-stationary and massive noise features of reciprocating pump power of rolling bearing vibration signal,a fault diagnosis method of rolling bearing based on EEMD,distance factor,correlation coefficient and wavelet packet decomposition is proposed. …”
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Machine Learning of the Reactor Core Loading Pattern Critical Parameters by Krešimir Trontl, Dubravko Pevec, Tomislav Šmuc

“…We employ a recently introduced machine learning technique, support vector regression (SVR), which is a data driven, kernel based, nonlinear modeling paradigm, in which model parameters are automatically determined by solving a quadratic optimization problem. …”
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Circuit Implementation, Synchronization of Multistability, and Image Encryption of a Four-Wing Memristive Chaotic System by Guangya Peng, Fuhong Min, Enrong Wang

“…Besides, the modular equivalent circuit of four-wing memristive system is designed and the corresponding results are observed to verify its accuracy and rationality. A nonlinear synchronization controller with exponential function is devised to realize synchronization of the coexistence of multiple attractors, and the synchronization control scheme is applied to image encryption to improve secret key space. …”
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Digital inclusive finance, rural revitalization and rural consumption. by Wei Li, Lu Zhang, Mingyue Pu, Hui Wang

“…Meanwhile, there is a nonlinear positive correlation between the impact of digitally inclusive finance and rural revitalization on rural residents' consumption, in which there is a double-threshold effect of digitally inclusive finance and rural revitalization in the lagged period. …”
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Kinematics Analysis of a Planar Symmetric (CRR)₂S-(3R)₂R Parallel Mechanism by Jie Li, Linxian Che, Li Du, Xin Zheng

“…The coordinate transformation method is applied to establish a set of nonlinear equations for the positive solution of the mechanism position，and the differential evolution algorithm is used to find the set of equations. …”
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A New Supply Chain System and Its Impulsive Synchronization by Yang Peng, Jiang Wu, Shiping Wen, Yuming Feng, Zhengwen Tu, Limin Zou

“…The purpose of this paper is to discuss modelling and synchronization of nonlinear supply chain system. Firstly, we present a new supply chain system which is sensitive to various uncertainties along with exogenous disturbances. …”
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RESEARCH ON DYNAMIC RESPONSE WITH CRASHWORTHY DEVICES OF OFFSHORE WIND TURBINE FUNDATION TO SHIP IMPACT by HAN ZhiWei, LI Chun, ZHOU HongJie, DING QinWei, YU Wan

“…The probability of collisions between offshore wind turbines and ships increases with the development of offshore wind farm. Based on nonlinear dynamic analysis method,through LS-DYNA to simulate the 5000 t ship impact a 4 MW offshore wind turbine tripod at different speed,study rubber-foam aluminum-steel crashworthy devices influence on structure dynamic response characteristics of tower in the process of collision. …”
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Novel Adaptive Bacteria Foraging Algorithms for Global Optimization by Ahmad N. K. Nasir, M. O. Tokhi, N. Maniha Abd. Ghani

“…In order to overcome such problems, novel linear and nonlinear mathematical relationships based on the index of iteration, index of bacteria, and fitness cost are adopted which can dynamically vary the step size of bacteria movement. …”
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Research on the Prediction of Port Economic Synergy Development Trend Based on Deep Neural Networks by Anping Zha, Jianjun Tu

“…Therefore, according to the availability of realistic data, this paper establishes a deep neural network prediction model for the collaborative development of ports and uses various port logistics indicators to predict the economic development trend, so as to realize a nonlinear mapping relationship between the level of port economic development and the side of port logistics demand. …”
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Improved grey wolf optimization algorithm based service function chain mapping algorithm by Yue ZHANG, Junnan ZHANG, Xiaochun WU, Chen HONG, Jingjing ZHOU

“…With the rise of new Internet applications such as the industrial Internet, the Internet of vehicles, and the metaverse, the network’s requirements for low latency, reliability, security, and certainty are facing severe challenges.In the process of virtual network deployment, when using network function virtualization technology, there were problems such as low service function chain mapping efficiency and high deployment resource overhead.The node activation cost and instantiation cost was jointly considered, an integer linear programming model with the optimization goal of minimizing the average deployment network cost was established, and an improved grey wolf optimization service function chain mapping (IMGWO-SFCM) algorithm was proposed.Three strategies: mapping scheme search based on acyclic KSP algorithm, mapping scheme coding and improvement based on reverse learning and nonlinear convergence were added to the standard grey wolf optimization algorithm to form this algorithm.The global search and local search capabilities were well balanced and the service function chain mapping scheme was quickly determined by IMGWO-SFCM.Compared with the comparison algorithm, IMGWO-SFCM reduces the average deployment network cost by 11.86% while ensuring a higher service function chain request acceptance rate.…”
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Distributed Analytical Formation Control and Cooperative Guidance for Gliding Vehicles by Shengwei Jia, Xiao Wang, Fugui Li, Yulin Wang

“…The proposed method takes full consideration of the characteristics of hypersonic gliding vehicle, such as complex nonlinear dynamics, no thrust, and quasi-equilibrium gliding condition, and no online numerical iteration is needed, which is well applicable for hypersonic gliding vehicles. …”
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Dynamic Takagi-Sugeno Model for the Control of Ultrasonic Motor by Shi Jingzhuo, Lv Lin, Zhang Yu

“…Comparison between experimental data and calculated data of the model indicates that the model can well describe the nonlinear characteristics among the frequency, amplitude of driving voltage and rotating speed. …”
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Steady plastic wave fronts and scale universality of strain localization in metals and ceramics by Yuriy Bayandin, Natalia Saveleva, Oleg Naimark

“…It is shown that spatial-temporal dynamics of collective modes (auto-solitary and blow-up dissipative structures) provide the anomalous relaxation ability of nonlinear system “solid with defects” in the conditions of the specific type of criticality – structural-scaling transition. …”
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