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学者姓名：张伟
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Abstract ：
In this paper, a double-disc rotor system with two support rolling bearings is reduced by the proper orthogonal decomposition (POD) method. The finite element method (FEM) is used to establish the rotor system model (96DOFs). The basic theory of the POD method and the concrete expression in the rotor system is introduced. The rotor system is reduced to 12, 5, and 2 DOFs by the POD method, respectively. The time history curves, and frequency spectrums of the reduced and original systems are compared for verifying the accuracy of the POD method. The 2-DOFs reduced system is solved by the Harmonic balance and alternating frequency/time domain (HB-AFT), whose results are in good agreement with those by the Runge-Kutta method.
Keyword ：
High-dimensional dynamic system High-dimensional dynamic system Order reduction Order reduction Nonlinear vibration Nonlinear vibration Rotor dynamics Rotor dynamics POD method POD method
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| GB/T 7714 | Lu, Kuan , Guo, Dong , Cheng, Hui et al. Dynamic response analysis of a double-disc rotor system with rolling bearings based on POD method [J]. | INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS , 2024 , 158 . |
| MLA | Lu, Kuan et al. "Dynamic response analysis of a double-disc rotor system with rolling bearings based on POD method" . | INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS 158 (2024) . |
| APA | Lu, Kuan , Guo, Dong , Cheng, Hui , Zhang, Wei , Zhang, Haopeng , Fu, Chao . Dynamic response analysis of a double-disc rotor system with rolling bearings based on POD method . | INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS , 2024 , 158 . |
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Abstract ：
The nonlinear dynamic characteristics of a flexible beam-ring structure under fundamental harmonic excitation are systematically investigated. The nonlinear partial differential governing equations of motion for the beam-ring structure are derived by using Hamilton's principle and discretized into two coupled ordinary differential equations including quadratic and cubic nonlinearities by Galerkin's technique. The potential internal resonance relationship of the beam-ring structure is recognized through analyzing the mode shapes and linear frequencies. The method of multiple scales is utilized to approximately analyze the dynamic system and yield a set of autonomous equations under the case of 1:1 internal resonance and a primary resonance. The amplitude-frequency characteristics and the stability of the steady-state responses are studied numerically. The frequency-response curves show that some parameters of the amplitude-frequency equations have significant contributions to the nonlinear responses near resonance of the beam-ring structure. Finally, the bifurcation diagram is obtained and the Poincare map, power spectra and the largest Lyapunov exponent are used to identify the nonlinear dynamic behaviors of the beam-ring structure. From the numerical simulations, it is found that there exist typical nonlinear phenomena such as multi-value solutions, jumps, bifurcations, multiple periodic and chaotic motions in the beam-ring system. This work also proposes a reference for non-linear modeling and dynamic analysis of similar complex structures. (c) 2023 Elsevier Inc. All rights reserved.
Keyword ：
Bifurcation Bifurcation Nonlinear vibration Nonlinear vibration Beam-ring structure Beam-ring structure Amplitude-frequency characteristics Amplitude-frequency characteristics Internal resonance Internal resonance
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| GB/T 7714 | Wu, R. Q. , Zhang, W. , Chen, J. E. et al. Nonlinear vibration and stability analysis of a flexible beam-ring structure with one-to-one internal resonance [J]. | APPLIED MATHEMATICAL MODELLING , 2023 , 119 : 316-337 . |
| MLA | Wu, R. Q. et al. "Nonlinear vibration and stability analysis of a flexible beam-ring structure with one-to-one internal resonance" . | APPLIED MATHEMATICAL MODELLING 119 (2023) : 316-337 . |
| APA | Wu, R. Q. , Zhang, W. , Chen, J. E. , Feng, J. J. , Hu, W. H. . Nonlinear vibration and stability analysis of a flexible beam-ring structure with one-to-one internal resonance . | APPLIED MATHEMATICAL MODELLING , 2023 , 119 , 316-337 . |
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Abstract ：
Mean motion resonance sometimes ensures the stable motions of the celestial bodies in multi-planetary systems. The resonant orbits provide a stabilizing mechanism for maintaining our solar system and extrasolar planetary systems. This paper focuses on the dynamical effect of eccentricity on the stability of the 3:5 external resonant orbits in the planar circular restricted three body problem (Star-Planet-Asteroid). We computed numerically the Poincare section of this model. We found that the initial eccentricity of the asteroid has a significant effect on the stability of the resonant orbits. The topology of this Poincare section changes three times with increasing eccentricity. With the help of the Poincare section, we obtained some periodic, quasi-periodic, and chaotic orbits. We also plotted the resonant region in (?, e, a) space. ? is the angular separation of the asteroid pericenter and the planet, and e and a are the eccentricity and semimajor axis of the asteroid, respectively.
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| GB/T 7714 | Zhu, Di , Zhang, Wei , Zuo, Hongkun et al. The dynamics of the resonance in a 3:5 external resonant model [J]. | AIP ADVANCES , 2023 , 13 (6) . |
| MLA | Zhu, Di et al. "The dynamics of the resonance in a 3:5 external resonant model" . | AIP ADVANCES 13 . 6 (2023) . |
| APA | Zhu, Di , Zhang, Wei , Zuo, Hongkun , Zhou, Yi . The dynamics of the resonance in a 3:5 external resonant model . | AIP ADVANCES , 2023 , 13 (6) . |
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Abstract ：
本发明公开了一种具有可调力学性能的模块化多稳态超材料结构，包括可调力学性能的单胞、水平长连接杆、竖直短连接杆；其中，单胞、水平长连接杆、竖直短连接杆若干，根据需要组装成具有任意数量行和列的结构模块化多稳态超材料结构；本发明可通过将不同长度的横杆插入框架中，改变弯曲梁的形状，从而调整单胞的力学行为，这是可调多稳态的基础，组装的模块化多稳态超材料的力学性能，即力‑位移响应和可调带隙，能够在许多领域实现可重复使用，并且隔振和隔噪。
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| GB/T 7714 | 毛佳佳 , 高伟 , 王帅 et al. 一种具有可调力学性能的模块化多稳态超材料结构 : CN202211217411.7[P]. | 2022-10-03 . |
| MLA | 毛佳佳 et al. "一种具有可调力学性能的模块化多稳态超材料结构" : CN202211217411.7. | 2022-10-03 . |
| APA | 毛佳佳 , 高伟 , 王帅 , 刘明超 , 张伟 . 一种具有可调力学性能的模块化多稳态超材料结构 : CN202211217411.7. | 2022-10-03 . |
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Abstract ：
本发明涉及一种航空发动机叶片动频计算方法和装置，包括：获取航空发动机叶片的工作转速；将所述工作转速代入预存的能量函数中进行求解，得到航空发动机叶片的动频；其中，所述能量函数，基于航空发动机叶片的旋转动能和旋转势能构建的动频关于工作转速的函数。本发明能够准确的计算叶片动频，进而为指导和完善叶片的设计提供帮助，避免工作时航空发动机叶片共振现象的发生。
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| GB/T 7714 | 张伟 , 李丽莎 . 一种航空发动机叶片动频计算方法和装置 : CN202210313861.X[P]. | 2022-03-28 . |
| MLA | 张伟 et al. "一种航空发动机叶片动频计算方法和装置" : CN202210313861.X. | 2022-03-28 . |
| APA | 张伟 , 李丽莎 . 一种航空发动机叶片动频计算方法和装置 : CN202210313861.X. | 2022-03-28 . |
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Abstract ：
本发明属于路面防滑领域，具体涉及一种路面防滑结构以及压槽装置，其包括位于路面上的防滑层，防滑层上设置有若干防滑孔，防滑孔呈“W”字形，并通过压槽工具压制而成，还包括一种压槽工具，其包括转动部件，转动部件上套设有若干压环，压环的外周面均匀设置有多个凸起部，凸起部与防滑孔的形状互相配合，相比现有技术，本发明提高了涂料防滑性能，减少或避免涂料溅水、油污等液体后打滑现象的发生，并且在防滑层铺设好之后，通过Y形架带动压环在路面滚动，从而可压制出防滑孔，而若干个压环可同时压制出均匀分布的防滑孔，从而便于防滑孔的施工，与此同时，压槽工具还能够将防滑孔两侧的骨料压入到防滑层中，使骨料触底。
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| GB/T 7714 | 魏中华 , 张伟 , 王铭乾 et al. 一种路面防滑结构以及压槽装置 : CN202211501288.1[P]. | 2022-11-28 . |
| MLA | 魏中华 et al. "一种路面防滑结构以及压槽装置" : CN202211501288.1. | 2022-11-28 . |
| APA | 魏中华 , 张伟 , 王铭乾 , 马厚强 . 一种路面防滑结构以及压槽装置 : CN202211501288.1. | 2022-11-28 . |
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Abstract ：
本发明公开了一种天体共振轨道判断系统，该系统包括上下位机通信模块、过程数值仿真位置模块及移动轨迹显示模块；上下位机通信模块与过程数值仿真位置模块及移动轨迹显示模块连接；上下位机通信模块对上位机计算出的控制信号下发到下位机，同时控制过程数值仿真移动参数上传到上位机。过程数值仿真位置及移动轨迹模块包含两种模式，分别为天体共振轨道过程数值仿真坐标系下位置显示与世界坐标系下过程数值仿真移动轨迹显示；所述的过程数值仿真位置及移动轨迹模块以图形的形式显示过程天体共振轨道数值仿真的位置及天体共振轨道移动轨迹。本发明能够实现智能化仿真管理等功能应用，系统操作容易界面简单；各个模块之间联系密切。
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| GB/T 7714 | 张伟 , 周毅 . 一种天体共振轨道判断系统 : CN202210268184.4[P]. | 2022-03-17 . |
| MLA | 张伟 et al. "一种天体共振轨道判断系统" : CN202210268184.4. | 2022-03-17 . |
| APA | 张伟 , 周毅 . 一种天体共振轨道判断系统 : CN202210268184.4. | 2022-03-17 . |
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Abstract ：
This paper focuses on the analysis on the nonlinear dynamics of two first-order 2:3 external and 3:2 internal mean motion resonances (MMRs) for three-body formed by two massive bodies, namely planet and star, and one test particle of the negligible mass. A detailed analysis of the phase space structure is given by computing Poincare map of the planar circular restricted three-body model. It is found that the eccentricity and initial location, namely the semimajor axis and phase, of the massless particle significantly affect the steady state of the resonant orbits. The transition mechanisms are obtained for the number of the stable islands. The width- and height-variation trends of the stable islands are analyzed. The stable and chaotic domains are obtained by the resonance space. Our results may be instructive for understanding the dynamics of the resonant bodies and the evolution of the resonant orbits.
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| GB/T 7714 | Zhou, Yi , Zhang, Wei . Analysis on nonlinear dynamics of two first-order resonances in a three-body system [J]. | EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS , 2022 , 231 (11-12) : 2289-2306 . |
| MLA | Zhou, Yi et al. "Analysis on nonlinear dynamics of two first-order resonances in a three-body system" . | EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS 231 . 11-12 (2022) : 2289-2306 . |
| APA | Zhou, Yi , Zhang, Wei . Analysis on nonlinear dynamics of two first-order resonances in a three-body system . | EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS , 2022 , 231 (11-12) , 2289-2306 . |
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Abstract ：
This paper establishes a mathematical model to analyze the static and dynamic behaviors of functionally graded graphene reinforced composite (FG-GRC) beam with geometric imperfection subjected to thermo-electro-mechanical load. Three different geometric imperfections are considered. Four different distribution patterns of graphene nanoplatelets (GPLs) are taken into consideration. The effective properties of the geometrically imperfect FG-GRC beam are estimated by the modified Halpin-Tsai model and rule of mixture. The nonlinear partial differential governing equations are deduced based on first -order shear deformation theory, von Karman nonlinear displacement-strain relationship and Hamilton principle, and discretized as ordinary differential forms through the differential quadrature (DQ) method. Newmark-beta method and iteration method are employed to numerically solve the governing equations. The effects of geometric imperfection, GPLs and piezoelectric actuators on bending and vibration of the geometrically imperfect FG-GRC beam subjected to thermo-electro-mechanical load are comprehensively investigated. The results clearly demonstrate that the coupling effect of geometric imperfections and thermo-electric-mechanical loads can introduce an additional transverse load acting along the length of the geometrically imperfect FG-GRC beam, and hence makes a significant difference on its static and dynamic behaviors. (C) 2022 Elsevier Masson SAS. All rights reserved.
Keyword ：
Geometric imperfection Geometric imperfection Bending Bending Graphene reinforced composite Graphene reinforced composite Functionally graded materials Functionally graded materials Vibrations Vibrations Thermo-electro-mechanical load Thermo-electro-mechanical load
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| GB/T 7714 | Guo, Li-Jia , Mao, Jia-Jia , Zhang, Wei et al. Modeling and analyze of behaviors of functionally graded graphene reinforced composite beam with geometric imperfection in multiphysics [J]. | AEROSPACE SCIENCE AND TECHNOLOGY , 2022 , 127 . |
| MLA | Guo, Li-Jia et al. "Modeling and analyze of behaviors of functionally graded graphene reinforced composite beam with geometric imperfection in multiphysics" . | AEROSPACE SCIENCE AND TECHNOLOGY 127 (2022) . |
| APA | Guo, Li-Jia , Mao, Jia-Jia , Zhang, Wei , Liu, Ya-Ze , Chen, Jie , Zhao, Wei . Modeling and analyze of behaviors of functionally graded graphene reinforced composite beam with geometric imperfection in multiphysics . | AEROSPACE SCIENCE AND TECHNOLOGY , 2022 , 127 . |
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Abstract ：
In this paper, the active damping control of the porous metal foam truncated conical shell with smart material macro fiber composite (MFC) is studied. Suppose the shell has arbitrary elastic supported edges, and is subjected to the impact loadings. The elastic supported edges can be achieved by virtual spring technique. Adopting the elastic constraint boundary condition, various classical boundaries can be easily realized by varying the value of the spring stiffnesses. Along the thickness direction, there are three types of porosity distributions of truncated conical shell being considered, and they are nonuniform symmetric, uniform and nonuniform asymmetric distribution, respectively. The sensor layer MFC-d31 and the actuator layer MFC-d33 are applied in the vibration control system. According to the first order shear deformation theory (FSDT) and energy principle, the dynamic equation of the system under electrostatic-mechanical coupling is derived. Then it is discretized into ordinary differential equation by generalized differential quadrature method (GDQM). The output charge applied to the sensor can be solved by integral quadrature method (IQM). The convergence and validation of the formulation and numerical calculation are studied by the comparisons between the present solutions and those from the literatures, ANSYS and COMSOL for the truncate conical shell with classical boundary conditions, respectively. Suppose the impact loadings acting on the porous truncated conical shell are step loading and decreasing loading, respectively. The velocity negative feedback approach is employed to diminish the amplitude of the transient response and achieve the active damping control. Then the effects of control gain, external excitation, semi-vertex angle and spring stiffness on the transient response control of the conical shell are studied in detail.
Keyword ：
Integral quadrature method Integral quadrature method Active vibration control Active vibration control Smart porous conical shell Smart porous conical shell Generalized differential quadrature method Generalized differential quadrature method Transient response Transient response
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| GB/T 7714 | Hao, Y. X. , Li, H. , Zhang, W. et al. Active vibration control of smart porous conical shell with elastic boundary under impact loadings using GDQM and IQM [J]. | THIN-WALLED STRUCTURES , 2022 , 175 . |
| MLA | Hao, Y. X. et al. "Active vibration control of smart porous conical shell with elastic boundary under impact loadings using GDQM and IQM" . | THIN-WALLED STRUCTURES 175 (2022) . |
| APA | Hao, Y. X. , Li, H. , Zhang, W. , Ge, X. S. , Yang, S. W. , Cao, Y. T. . Active vibration control of smart porous conical shell with elastic boundary under impact loadings using GDQM and IQM . | THIN-WALLED STRUCTURES , 2022 , 175 . |
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