Intelligent Robust Control of Roadheader Based on Disturbance Observer by Shuo Wang, Dongjie Wang, Aixiang Ma, Xihao Yan, Sihai Zhao

“…This paper proposes an intelligent robust control scheme for the cutting head trajectory of a coal mine tunneling robot, which is susceptible to unknown external disturbances, system nonlinearity, and parameter uncertainties. First, the working conditions of the cutting section were analyzed, and a mathematical model was established. …”
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Short-Term Passenger Flow Forecasting for Rail Transit considering Chaos Theory and Improved EMD-PSO-LSTM-Combined Optimization by Lixin Zhao, Hui Jin, Xintong Zou, Xiao Liu

“…This paper proposes a prediction method based on chaos theory and an improved empirical-modal-decomposition particle-swarm-optimization long short-term-memory (EMD-PSO-LSTM)-combined optimization process for passenger flow data with high nonlinearity and dynamic space-time dependence, using EMD to process the original passenger flow data and generate several eigenmodal functions (IMFs) and residuals with different characteristic scales. …”
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Adaptive Neural Network Variable Structure Control for Liquid-Filled Spacecraft under Unknown Input Saturation by Hongwei Wang, Shufeng Lu, Xiaojuan Song

“…Also, the saturation compensation scheme is derived by using a radial basis function neural network to approximate the unknown saturation nonlinearity. The associated stability proof of the resulting closed-loop system is presented based on Lyapunov analysis, and asymptotic convergence of the state variables is guaranteed via the Barbalat lemma. …”
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A Unique Finite Element Modeling of the Periodic Wave Transformation over Sloping and Barred Beaches by Beji and Nadaoka's Extended Boussinesq Equations by Mohammad Hadi Jabbari, Parviz Ghadimi, Mesbah Sayehbani, Arsham Reisinezhad

“…In these test cases, dispersive and nonlinearity effects of the periodic waves over sloping beaches and barred beaches, which are the common coastal profiles, are investigated. …”
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Static Aeroelastic Characteristics of Morphing Trailing-Edge Wing Using Geometrically Exact Vortex Lattice Method by Sen Mao, Changchuan Xie, Lan Yang, Chao Yang

“…The results indicate that the geometrically exact VLM can better describe the aerodynamic nonlinearity of a morphing TE wing in consideration of geometrical deformation in aeroelastic analysis. …”
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Effect of Particle Breakage and Shape on the Mechanical Behaviors of Granular Materials by Yongxin Wang, Shengjun Shao, Zhi Wang

“…The particle breakage property under loading is an important factor affecting the nonlinearity of the shear strength and stress-strain curves of coarse-grained soils. …”
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Application of Support Vector Machines for Estimating Wall Parameters in Through-Wall Radar Imaging by Hua-Mei Zhang, Ye-Rong Zhang, Fang-Fang Wang, Jun-Lin An

“…In TWRI problem, the nonlinearity is embodied in the relationship between backscatter data and the wall parameters, which can be obtained through the SVM training process. …”
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THREE-PHASE TRANSFORMER PARAMETERS CALCULATION CONSIDERING THE CORE SATURATION FOR THE MATLAB-SIMULINK TRANSFORMER MODEL by I. V. Novash, Yu. V. Rumiantsev

“…The  methodology  of  the  three-phase  two-winding  power  transformer model parameters calculation considering the magnetization curve nonlinearity isn’t presented in Russian-and English-language sources. …”
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Collapse-Pounding Dynamic Responses of Adjacent Frame Structures under Earthquake Action by Wei Jing, Shangshang Xing, Yu Song

“…The structure will collapse and impact the adjacent structures once the weak column is destroyed under seismic action, and, finally, the earthquake damage is aggravated. Material nonlinearity, initial imperfections, and contact problems in the process of collapse-pounding are considered, and the three-dimensional calculation model with unequal 8-story and 6-story height adjacent frames is established. …”
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Predictive Control for Interval Type-2 Fuzzy System with Event-Triggered Scheme by Siyao Wang, Xiaoming Tang, Li Deng, Hongchun Qu, Linfeng Tian, Cheng Tan

“…The IT2 T-S fuzzy model is utilized to address the nonlinearity of plant with parameter uncertainties, which can be captured by the lower and upper membership functions. …”
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Experimental Demonstration of Special-Shaped 32-Quadrature Amplitude Modulation Constellations for Visible Light Communications by Xinyue Guo, Shuangshuang Li, Yang Guo

“…Experimental results show that the bit error rate performance is finally decided by the value of PAPR in the VLC system due to the serious nonlinearity of the LED, where the Circular (4, 11, 17) scheme always performs best under the 7% preforward error correction threshold of 3.8 × 10−3 with 62.5Mb/s transmission data rate and 1-meter transmission distance.…”
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Fault Diagnosis for Reducer via Improved LMD and SVM-RFE-MRMR by Xiaoguang Zhang, Zhenyue Song, Dandan Li, Wei Zhang, Zhike Zhao, Yingying Chen

“…The vibration signals are usually characterized by nonstationary, nonlinearity, and high frequency shocks, and the redundant features degrade the performance of fault diagnosis methods. …”
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Flexible Reconfiguration for Optimal Operation of Distribution Network Under Renewable Generation and Load Uncertainty by Behzad Esmaeilnezhad, Hossein Amini, Reza Noroozian, Saeid Jalilzadeh

“…The suggested optimization problem is solved using a metaheuristic approach based on the coati optimization algorithm (COA) due to the nonlinearity and non-convexity of the problem. To evaluate the performance of the presented approach, it is validated on the IEEE 33-bus radial system and TPC 83-bus real system. …”
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Acoustic Echo Cancellation Embedded in Smart Transcoding Algorithm between 3GPP AMR-NB Modes by Emmanuel Rossignol Thepie Fapi, Dominique Pastor, Christophe Beaugeant, Hervé Taddei

“…The AEC performance is strongly degraded by nonlinearity introduced by speech codecs. The Echo Return Loss Enhancement (ERLE) can be less than 10 dB for low bit rate speech codecs. …”
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A Speed Control Method for Underwater Vehicle under Hydraulic Flexible Traction by Yin Zhao, Ying-kai Xia, Ying Chen, Guo-Hua Xu

“…Sliding mode variable structure control theory for the nonlinear system allows an improved control effect for movements in “sliding mode” when compared with conventional control. …”
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Disturbance Observer-Based Nonsingular Terminal Sliding Mode Control for Spacecraft Electromagnetic Docking by Jinghui Zhang, Guoqiang Zeng, Shifeng Zhang

“…This paper presents a novel nonlinear sliding mode control scheme that combines on-line model modification, a nonlinear sliding mode controller, and a disturbance observer to solve the essential problems in spacecraft electromagnetic docking control, such as model uncertainties, unknown external disturbances, and inherent strong nonlinearity and coupling. …”
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An Approximation Solution to Refinery Crude Oil Scheduling Problem with Demand Uncertainty Using Joint Constrained Programming by Qianqian Duan, Genke Yang, Guanglin Xu, Changchun Pan

“…However, the joint chance constraints usually hold strong nonlinearity and consequently, it is still hard to handle it directly. …”
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Analysis on the Influence of Increasing Seismic Fortification Intensity on Seismic Performance of Underground Station by Ying Zeng, Shiguang Xu, Shiqian Yin

“…The equivalent linearization method is used to consider the nonlinearity of soil materials. The time-history analysis of seismic fortification intensity of VII and VIII degrees is carried out, respectively. …”
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A Linear Parameter Varying Control Approach for DC/DC Converters in All-Electric Boats by Soroush Azizi, Mohammad Hassan Asemani, Navid Vafamand, Saleh Mobayen, Mohammad Hassan Khooban

“…Initially, all component dynamics are augmented, and by exploiting the sector-nonlinearity approach, the LPV representation is derived. …”
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Multivehicle Cooperative Lane Change Control Strategy for Intelligent Connected Vehicle by Jie Ni, Jingwen Han, Fei Dong

“…It is significant to solve the difficult numerical problem caused by the dimension of collision-avoidance constraints and the nonlinearity of vehicle kinematics. In the first stage, the subject vehicle completes lane change operation. …”
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