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Hanwen Yu, Guiyuan Zheng, Yandong Liu, Jiajia Zhao, Guozhao Wei and Hongkui Jiang
The potential applications of the dual linear-motor differential-drive system and the numerical analysis results are applicable to high-end equipment fields like suspensions, robotics, optoelectronics, powertrain, integrated electronics, national defense...
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Yuanyuan Zhang, Chunling Ren, Haodong Meng and Yong Wang
To enhance the dynamic performance of half-vehicle seat systems and reduce vibrations in both the vertical and pitching directions, a nonlinear energy sink inerter (NESI) can be introduced and aligned with lightweight design principles. A dynamic model o...
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Xiaotian Zhang, Ruiqing Wang, Xiaogang Li, Chengyang Lu, Zhengkang Wang and Wenlong Wang
Bolted flange joints are widely used in engineering structures. Sunk screw connection structures commonly used in small rockets and missiles exhibit significant nonlinear characteristics when subjected to forces. In this article, a study of the dynamic c...
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Zhiying Zhang, Xin Tian and Xin Ge
The Bouc?Wen nonlinear hysteretic model has many control parameters, which has been widely used in the field of seismic isolation. The isolation layer is the most important part of the isolation system, which can be effectively simulated by the Bouc?Wen ...
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Ram M. Narayanan, Kyle A. Gallagher, Gregory J. Mazzaro, Anthony F. Martone and Kelly D. Sherbondy
Radio frequency (RF) circuit elements that are traditionally considered to be linear frequently exhibit nonlinear properties that affect the intended operation of many other RF systems. Devices such as RF connectors, antennas, attenuators, resistors, and...
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T. M. Mishchenko
Pág. 56 - 63
Purpose. The essence and basic characteristics of calculation methods of transient electromagnetic processes in the elements and devices of non?linear dynamic electric traction systems taking into account the stochastic changes of voltages and currents i...
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Zong-Yu Chang, Xin Duan, Zhong-Qiang Zheng, Lin Zhao, Yu-Hu Yang, Xian-Yi Zhou, Peng Zhu, Jing-Wen He
Pág. 182 - 189
The offshore floating platform is the key equipment in offshore and gas development. The significant heave motions occur with the excitation of wind and waves, which will affect the safety of a riser system. A direct acting tensioner can be applied to re...
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Chuang Wu, Anjiang Cai, Xing Gao and Chongjing Cao
In recent years, with the rapid development of soft robots, dielectric elastomer actuators (DEAs) as a novel type of soft actuators have been widely studied. However, DEAs often suffer from low instantaneous output force/power, especially in high payload...
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Jiqing Du, Dan Zhou and Sachiyo Arai
This study introduces a hybrid control structure called Improved Interfered Fluid Dynamic System Nonlinear Model Predictive Control (IIFDS-NMPC) for the path planning and trajectory tracking of autonomous underwater vehicles (AUVs). The system consists o...
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Shuang Ruan, Ming Zhang, Shaofei Yang, Xiaohang Hu and Hong Nie
A dynamic model is established to investigate the shimmy instability of a landing gear system, considering the influence of nonlinear damping. The stability criterion is utilized to determine the critical speed at which the landing gear system becomes un...
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Qi Hong, Tianyi Zhou and Junde Qi
Polishing force is one of the key process parameters in the polishing process of blisk blades, and its control accuracy will affect the surface quality and processing accuracy of the workpiece. The contact mechanism between the polishing surface and flap...
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Lixiong Gu, Chunguang Dong, Yi Zhang, Xiaoxia Zhen, Guiyuan Liu and Jianyi Ji
An approach is presented to investigate the 1:2 internal resonance of the sling and beam of a suspension sling?beam system. The beam was taken as the geometrically linear Euler beam, and the sling was considered to be geometrically nonlinear. The dynamic...
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Yunxu Shi, Zhe Wu, Wei Liu and Jin Wei
In this paper, a reduced-order analytical model for an L-shaped multi-beam structure with nonlinear joints is presented to investigate the nonlinear responses of the system with three-to-one internal resonances conditions. Firstly, the global mode shapes...
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Lianfeng Yang, Liqin Liu, Chao Luo, Yongjun Yu and Yiqun Chen
The aim of this paper is to investigate the vibration suppression effect of a nonlinear energy sink (NES) on the wind-vortex-induced vibration of deep-water jacket pipes. Based on nonlinear dynamical theories, the coupled dynamic equation of a deep-water...
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Yanpeng Hu, Jin Guo, Pei Ying, Guannan Zeng and Nanyu Chen
This paper explores a novel single tail tilt servomotor tri-rotor ducted vertical takeoff and landing unmanned aerial vehicle system (VTOL-UAV), and proposes a compound control method combining disturbance observer, model predictive control (MPC) and sli...
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Guang He, Li Yu, Huaping Huang and Xiangke Wang
The tilt tri-rotor unmanned aerial vehicle (UAV) has three flight modes: the hover mode, the transition mode, and the fixed-wing mode. Controller design in the hover mode is the premise of realizing stable flight of this kind of UAV. Due to the particula...
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Okpin Na and Jejin Park
Real-time hybrid method is an economical and efficient test method to evaluate the dynamic behavior. The purpose of this study is to develop the computational algorithm and to prove the reliability of a real-time hybrid control system. For performing the...
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Changren Ke, Yihui Fan and Junling Jiang
In order to study the effect of the support mode of a staggered truss system on the continuous collapse resistance performance of a steel structure, four finite element models were established based on the bracing arrangement of a five-story steel frame ...
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Xiaobin Zhang and Bo Yu
Due to the lack of training data and effective haze disaster prediction model, the research on causality analysis and the risk prediction of haze disaster is mainly qualitative. In order to solve this problem, a nonlinear dynamic prediction model of Beij...
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Jingchao Zhao, Xiaoyu Wang, Chao Meng, Huitao Song, Zhong Luo and Qingkai Han
As a high-precision motion mechanism, the kinematics and dynamics of cascade thrust reverser are sensitive to the changes of nonlinear factors which are rarely considered in traditional dynamic modeling and optimization. In order to study the effect of n...
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