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Jiwei Tang, Shilong Bai, Weicheng Xie, Junjie Wu, Hanjie Jiang and Yuxuan Sun
The stratospheric airship is taken as the research object, and the motion mode analysis of the stratospheric airship is carried out. The influence of key parameters such as the center of mass, the center of buoyance, and the aerodynamic stability moment ...
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Guiming Dong, Juan Tian, Hongbin Zhan and Rengyang Liu
Groundwater flow simulation often inevitably involves uncertainty, which has been quantified by a host of methods including stochastic methods and statistical methods. Stochastic methods and statistical methods face great difficulties in applications. On...
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Guiming Dong, Juan Tian, Hongbin Zhan and Rengyang Liu
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Marcos D. Mateus and Guilherme Franz
Sensitivity analysis (SA) has long been recognized as part of best practices to assess if any particular model can be suitable to inform decisions, despite its uncertainties. SA is a commonly used approach for identifying important parameters that domina...
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Huixuan Fu, Shichuan Wang, Yan Ji and Yuchao Wang
This paper addressed the formation control problem of surface unmanned vessels with model uncertainty, parameter perturbation, and unknown environmental disturbances. A formation control method based on the control force saturation constraint and the ext...
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Folake Oyedigba Akinpelu, Olalekan Ayodeji Olaleye, Raimi Marcus Alabison
Pág. 130 - 137
A comparison of the effects of solar radiation on sandy-loam and clay-loam soils with convective boundary condition was made. The dimensional governing equations (the continuity, momentum and energy equations) were converted to non-dimensional form using...
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Gian C. Rana, Ramesh Chand
Pág. 233 - 240
Double-diffusive convection in a horizontal layer of nanofluid in a porous medium is studied. The couple-stress fluid model is considered to describe the rheological behavior of the nanofluid and for porous medium Darcy model is employed. The model appli...
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Qing Zhang, Yuhu Yang
Pág. 153 - 160
The randomness of a high-speed elevator car system?s parameters was caused by manufacturing and installation error. In order to more accurately evaluate the dynamic behavior of the elevator car, the compound vibration problems containing both random exci...
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Dhan Lord B. Fortela, Alyssa M. DeLattre, Wayne W. Sharp, Emmanuel D. Revellame and Mark E. Zappi
Microalgae are multi-purpose microbial agents due to their capability to efficiently sequester carbon dioxide and produce valuable biomass such as protein and single-cell oils. Formulation and tuning of microalgae kinetics models can significantly contri...
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Camila Fogaça de Oliveira, Paulo Laerte Natti, Eliandro Rodrigues Cirilo, Neyva Maria Lopes Romeiro, Érica Regina Takano Natti
Pág. e46881
The propagation of soliton waves is simulated through splices in quadratic optical media, in which fluctuations of dielectric parameters occur. A new numerical scheme was developed to solve the complex system of partial differential equations (PDE) that ...
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Camila Fogaça de Oliveira, Paulo Laerte Natti, Eliandro Rodrigues Cirilo, Neyva Maria Lopes Romeiro, Érica Regina Takano Natti (Author)
Pág. e46881
The propagation of soliton waves is simulated through splices in quadratic optical media, in which fluctuations of dielectric parameters occur. A new numerical scheme was developed to solve the complex system of partial differential equations (PDE) that ...
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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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Zian Wang, Lei Hu, Wanghua Fei, Dapeng Zhou, Dapeng Yang, Chenxi Ma, Zheng Gong, Jin Wu, Chengxi Zhang and Yi Yang
This paper focuses on the triaxial augmentation ability of the active disturbance rejection control (ADRC) technique on the tailless layout with a fully moving wing tip to achieve high control performance for the supersonic tailless aircraft. Firstly, th...
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Wei Chen, Xingyu Du, Bao-Lin Zhang, Zhihui Cai and Zhongqiang Zheng
To improve the safety and reliability of offshore structures subject to wave loading, the active vibration control problem is always one of significant issues in the field of ocean engineering. This paper deals with the near?optimal control problem of of...
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Pengcheng Gao, Qiaogao Huang and Guang Pan
A numerical simulation is used to investigate the effects of adding high frequency and low amplitude perturbations of different waveforms to the sinusoidal-based signal of the heaving foil on the propulsion performance and wake structure. We use the adju...
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Chunsheng Jiang, Yongjie Liu, Yu Jiang and Hengnian Li
This paper investigates the evolution of orbits around Jupiter and designs a sun-synchronous repeating ground track orbit. In the dynamical models, the leading terms of the Jupiter?s oblateness are J2 and J4 terms. A reasonable range of ground track repe...
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Bo Li, Wenhu Tang, Kaishun Xiahou and Qinghua Wu
This paper develops a robust regulator design approach to maximum power point tracking (MPPT) of a variable-speed wind energy conversion system (WECS) under the concept of perturbation and observation. The proposed perturb and observe regulators (PORs) r...
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Lin Ma, Fuheng Ma, Wenhan Cao, Benxing Lou, Xiang Luo, Qiang Li and Xiaoniao Hao
A original strategy for optimizing the inversion of concrete dam parameters based on the multi-strategy improved Sooty Tern Optimization algorithm (MSSTOA) is proposed to address the issues of low efficiency, low accuracy, and poor optimizing performance...
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Lingjiang Tao
With an El Niño prediction model, an advanced approach of conditional nonlinear optimal perturbation (CNOP) is used to reveal the maximum impacts of the errors occurring in initial conditions (ICs) and model parameters (MPs) on the El Niño predictions. T...
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Xu Huang, Yuan Zhang, Jiarun Liu, Honghao Zhong, Zhaolei Wang and Yue Peng
A data-driven nonlinear control approach, called error dynamics-based dual heuristic dynamic programming (ED-DHP), is proposed for air vehicle attitude control. To solve the optimal tracking control problem, the augmented system is defined by the derived...
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