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学者姓名：王腾
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摘要 ：
实现水声换能器的测量对水下宽带通信具有重要意义.利用AD5933芯片及其扩展电路实现了水声换能器电阻抗特性的测量,给出了用高压功率信号激励下测量换能器电阻抗特性的方法.以STM32处理器作信号采集与控制,测量数据经USB接口送上位机进行处理与校正,解算出在功率信号的激励下水声换能器的幅频及相频特性曲线并实时显示.结果表明,该系统运行稳定,测量谐振频率和谐振阻抗的误差均在8％以内.该设备可以满足一般中小功率换能器阻抗匹配的精度要求,为水声功放与换能器的匹配设计和调试提供方便.
关键词 ：
水声换能器 水声换能器 功率信号激励 功率信号激励 电阻抗特性 电阻抗特性 AD5933芯片 AD5933芯片 STM32处理器 STM32处理器
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| GB/T 7714 | 王瑛 , 王腾 , 王铁流 et al. 基于AD5933的水声换能器电阻抗特性测量仪 [J]. | 国外电子测量技术 , 2021 , 40 (5) : 141-145 . |
| MLA | 王瑛 et al. "基于AD5933的水声换能器电阻抗特性测量仪" . | 国外电子测量技术 40 . 5 (2021) : 141-145 . |
| APA | 王瑛 , 王腾 , 王铁流 , 于靖一 , 高海龙 , 张银亮 . 基于AD5933的水声换能器电阻抗特性测量仪 . | 国外电子测量技术 , 2021 , 40 (5) , 141-145 . |
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摘要 ：
针对水声功率发射机因换能器宽带匹配出现的幅频特性不均衡问题，采用预失真处理技术，利用STM32F4处理器的DAC直接合成4FSK编码信号，在信源上对不同频率信号的强度进行校正，再配合D类线性功率放大器的增益自适应调整，使不同频率的FSK编码信号满足宽带内各频点幅值均衡的要求，从而实现换能器宽带匹配的进一步优化。
关键词 ：
换能器宽带匹配 换能器宽带匹配 水声功率发射机 水声功率发射机 幅频特性均衡 幅频特性均衡 预失真处理 预失真处理
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| GB/T 7714 | 周启令 , 王瑛 , 王铁流 et al. 基于STM32F4的水声功率发射机的频带预失真补偿方法 [C] //第十四届全国信号和智能信息处理与应用学术会议论文集 . 2021 : 90-94 . |
| MLA | 周启令 et al. "基于STM32F4的水声功率发射机的频带预失真补偿方法" 第十四届全国信号和智能信息处理与应用学术会议论文集 . (2021) : 90-94 . |
| APA | 周启令 , 王瑛 , 王铁流 , 王腾 , 张银亮 . 基于STM32F4的水声功率发射机的频带预失真补偿方法 第十四届全国信号和智能信息处理与应用学术会议论文集 . (2021) : 90-94 . |
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摘要 ：
We are concerned with the large-time asymptotic behaviors towards the planar rarefaction wave to the three-dimensional (3D) compressible and isentropic Navier-Stokes equations in half space with Navier boundary conditions. It is proved that the planar rarefaction wave is time-asymptotically stable for the 3D initial-boundary value problem of the compressible Navier-Stokes equations in R+ x T-2 with arbitrarily large wave strength. Compared with the previous work [17, 16] for the whole space problem, Navier boundary conditions, which state that the impermeable wall condition holds for the normal velocity and the fluid tangential velocity is proportional to the tangential component of the viscous stress tensor on the boundary, are crucially used for the stability analysis of the 3D initial-boundary value problem.
关键词 ：
Compressible Navier-Stokes equations Compressible Navier-Stokes equations Navier boundary conditions Navier boundary conditions planar rarefaction wave planar rarefaction wave sta- bility sta- bility
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| GB/T 7714 | Wang, T. E. N. G. , Wang, Y., I . LARGE-TIME BEHAVIORS OF THE SOLUTION TO 3D COMPRESSIBLE NAVIER-STOKES EQUATIONS IN HALF SPACE WITH NAVIER BOUNDARY CONDITIONS [J]. | COMMUNICATIONS ON PURE AND APPLIED ANALYSIS , 2021 , 20 (7-8) : 2811-2838 . |
| MLA | Wang, T. E. N. G. et al. "LARGE-TIME BEHAVIORS OF THE SOLUTION TO 3D COMPRESSIBLE NAVIER-STOKES EQUATIONS IN HALF SPACE WITH NAVIER BOUNDARY CONDITIONS" . | COMMUNICATIONS ON PURE AND APPLIED ANALYSIS 20 . 7-8 (2021) : 2811-2838 . |
| APA | Wang, T. E. N. G. , Wang, Y., I . LARGE-TIME BEHAVIORS OF THE SOLUTION TO 3D COMPRESSIBLE NAVIER-STOKES EQUATIONS IN HALF SPACE WITH NAVIER BOUNDARY CONDITIONS . | COMMUNICATIONS ON PURE AND APPLIED ANALYSIS , 2021 , 20 (7-8) , 2811-2838 . |
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摘要 ：
针对水声功率发射机因换能器宽带匹配出现的幅频特性不均衡问题,采用预失真处理技术,利用STM32F4处理器的DAC直接合成4FSK编码信号,在信源上对不同频率信号的强度进行校正,再配合D类线性功率放大器的增益自适应调整,使不同频率的FSK编码信号满足宽带内各频点幅值均衡的要求,从而实现换能器宽带匹配的进一步优化。
关键词 ：
幅频特性均衡 幅频特性均衡 换能器宽带匹配 换能器宽带匹配 预失真处理 预失真处理 水声功率发射机 水声功率发射机
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| GB/T 7714 | 周启令 , 王瑛 , 王铁流 et al. 基于STM32F4的水声功率发射机的频带预失真补偿方法 [C] //第十四届全国信号和智能信息处理与应用学术会议论文集 . 2020 . |
| MLA | 周启令 et al. "基于STM32F4的水声功率发射机的频带预失真补偿方法" 第十四届全国信号和智能信息处理与应用学术会议论文集 . (2020) . |
| APA | 周启令 , 王瑛 , 王铁流 , 王腾 , 张银亮 . 基于STM32F4的水声功率发射机的频带预失真补偿方法 第十四届全国信号和智能信息处理与应用学术会议论文集 . (2020) . |
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摘要 ：
本实用新型公开了一种便携式水下三轴观测设备，包括水上、水下两个单元，水上单元由装在防水手提箱内的六个部件构成：微处理器核心模块、带有树莓派微电脑的视频处理显示模块、控制水下图像采集视角的三轴操作杆、调节水下灯参数的旋钮编码器、负责图像数据转换的电力线载波模块以及带有可充电锂电池的电源模块，水下单元由负责图像采集的摄像头、可自由旋转的三轴电控云台、水下电力线载波模块和水下LED照明灯四个部件组成。本实用新型利用水上单元的三轴操作杆来控制水下单元的三轴电控云台，从而使得水下单元无论如何放置，都无需对其进行基准面的规正校准，简化了水下三维空间实时观测的布设作业过程。
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| GB/T 7714 | 王瑛 , 刘瑞杰 , 张银亮 et al. 一种便携式水下三轴观测设备 : CN202020795498.6[P]. | 2020-05-14 . |
| MLA | 王瑛 et al. "一种便携式水下三轴观测设备" : CN202020795498.6. | 2020-05-14 . |
| APA | 王瑛 , 刘瑞杰 , 张银亮 , 于靖一 , 高海龙 , 王腾 et al. 一种便携式水下三轴观测设备 : CN202020795498.6. | 2020-05-14 . |
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摘要 ：
We establish the vanishing viscosity limit of viscous Burgers-Vlasov equations for one dimensional kinetic model about interactions between a viscous fluid and dispersed particles by using compensated compactness technique and the evolution of level sets arguments. The limit we obtained is exactly a finite-energy weak solution to the inviscid equations.
关键词 ：
Burgers equation Burgers equation finite-energy weak solution finite-energy weak solution two phase flow two phase flow vanishing viscosity limit vanishing viscosity limit Vlasov equation Vlasov equation
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| GB/T 7714 | Cao, Wentao , Wang, Teng . VANISHING VISCOSITY LIMIT FOR VISCOUS BURGERS-VLASOV EQUATIONS [J]. | COMMUNICATIONS IN MATHEMATICAL SCIENCES , 2020 , 18 (4) : 1135-1148 . |
| MLA | Cao, Wentao et al. "VANISHING VISCOSITY LIMIT FOR VISCOUS BURGERS-VLASOV EQUATIONS" . | COMMUNICATIONS IN MATHEMATICAL SCIENCES 18 . 4 (2020) : 1135-1148 . |
| APA | Cao, Wentao , Wang, Teng . VANISHING VISCOSITY LIMIT FOR VISCOUS BURGERS-VLASOV EQUATIONS . | COMMUNICATIONS IN MATHEMATICAL SCIENCES , 2020 , 18 (4) , 1135-1148 . |
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摘要 ：
In smooth systems, the form of the heteroclinic Melnikov chaotic threshold is similar to that of the homoclinic Melnikov chaotic threshold. However, this conclusion may not be valid in nonsmooth systems with jump discontinuities. In this paper, based on a newly constructed nonsmooth pendulum, a kind of impulsive differential system is introduced, whose unperturbed part possesses a nonsmooth heteroclinic solution with multiple jump discontinuities. Using the recursive method and the perturbation principle, the effects of the nonsmooth factors on the behaviors of the nonsmooth dynamical system are converted to the integral items which can be easily calculated. Furthermore, the extended Melnikov function is employed to obtain the nonsmooth heteroclinic Melnikov chaotic threshold, which implies that the existence of the nonsmooth heteroclinic orbits may be due to the breaking of the nonsmooth heteroclinic loops under the perturbation of damping, external forcing and nonsmooth factors. It is worth pointing out that the form of the nonsmooth heteroclinic Melnikov function is different from the one of the nonsmooth homoclinic Melnikov function, which is quite different from the classical Melnikov theory.
关键词 ：
chaos chaos heteroclinic orbit heteroclinic orbit Melnikov method Melnikov method nonsmooth pendulum nonsmooth pendulum Nonsmooth system Nonsmooth system
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| GB/T 7714 | Tian, R. L. , Wang, T. , Zhou, Y. F. et al. Heteroclinic Chaotic Threshold in a Nonsmooth System with Jump Discontinuities [J]. | INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS , 2020 , 30 (10) . |
| MLA | Tian, R. L. et al. "Heteroclinic Chaotic Threshold in a Nonsmooth System with Jump Discontinuities" . | INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS 30 . 10 (2020) . |
| APA | Tian, R. L. , Wang, T. , Zhou, Y. F. , Li, J. , Zhu, S. T. . Heteroclinic Chaotic Threshold in a Nonsmooth System with Jump Discontinuities . | INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS , 2020 , 30 (10) . |
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摘要 ：
We investigate the time-asymptotic stability of planar rarefaction wave for the 3D bipolar Vlasov Poisson Boltzmann (VPB) system, based on the micro macro decompositions introduced in [T. P. Liu and S. H. Yu, Boltzmann equation: Micro-macro decompositions and positivity of shock profiles, Comm. Math. Phys. 246 (2004) 133-179; Energy method for the Boltzmann equation, Physica D 188 (2004) 178-192] and our new observations on the underlying wave structures of the equation to overcome the difficulties due to the wave propagation along the transverse directions and its interactions with the planar rarefaction wave. Note that this is the first stability result of basic wave patterns for bipolar VPB system in three dimensions.
关键词 ：
planar rarefaction wave planar rarefaction wave stability stability Vlasov-Poisson-Boltzmann system Vlasov-Poisson-Boltzmann system
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| GB/T 7714 | Wang, Shu , Wang, Teng . Stability of planar rarefaction wave to the 3D bipolar Vlasov Poisson Boltzmann system [J]. | MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES , 2020 , 30 (1) : 23-104 . |
| MLA | Wang, Shu et al. "Stability of planar rarefaction wave to the 3D bipolar Vlasov Poisson Boltzmann system" . | MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES 30 . 1 (2020) : 23-104 . |
| APA | Wang, Shu , Wang, Teng . Stability of planar rarefaction wave to the 3D bipolar Vlasov Poisson Boltzmann system . | MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES , 2020 , 30 (1) , 23-104 . |
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摘要 ：
为了探讨软土场地中堆煤荷载作用下邻近群桩承台体系受力变形特性,以马来西亚某大型储煤场为具体工程背景,基于大型有限元数值计算平台ABAQUS建立可考虑空间刚度效应的堆煤荷载作用下软土-群桩-承台体系三维非线性数值模型,对既定场地群桩承台基础方案进行受力变形分析和安全性评价.结果表明,在堆煤荷载作用下,靠近堆煤侧桩体侧向位移最大,在软弱夹层深度范围内桩体内力变化存在突变现象;在边承台桩身中部和底部,以及中承台桩顶与承台连接处存在拉应力集中区.
关键词 ：
数值平台 数值平台 堆煤荷载 堆煤荷载 桩土相互作用 桩土相互作用 刚度效应 刚度效应 群桩承台 群桩承台 软土场地 软土场地 有限元 有限元 变形分析 变形分析
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| GB/T 7714 | 席爱斌 , 王腾 , 崔春义 et al. 堆煤荷载下软土-群桩-承台体系三维数值分析 [J]. | 沈阳工业大学学报 , 2019 , 41 (06) : 705-709 . |
| MLA | 席爱斌 et al. "堆煤荷载下软土-群桩-承台体系三维数值分析" . | 沈阳工业大学学报 41 . 06 (2019) : 705-709 . |
| APA | 席爱斌 , 王腾 , 崔春义 , 孟坤 , 梁志孟 , 邢国雷 . 堆煤荷载下软土-群桩-承台体系三维数值分析 . | 沈阳工业大学学报 , 2019 , 41 (06) , 705-709 . |
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摘要 ：
In order to investigate the characteristics of force deformation of peripherial pile group bearing platform subjected to the influence of coal pile load, taking a large specific coal yard in Malaysia as engineering background and based on the large finite element numerical calculation platform ABAQUS, a three-dimensional nonlinear numerical model for the soft soil-pile group-bearing platform system under the influence of coal pile load was established with the consideration for space stiffness effect, and the force deformation analysis and safety evaluation for base scheme of group pile bearing platform were also performed. The results show that under the influence of coal pile load, the pile bodies near the coal pile side have the maximum lateral displacement, and the mutation phenomenon occurs during internal force deformation of pile bodies within the depth range of weak interlayers. In addition, the tensile stress concentration zone exists within the middle and bottom sections of pile bodies for side bearing platform and the joint section between bearing platform and pile cap of middle platform. © 2019,Editorial Department of Journal of Shenyang University of Technology. All right reserved.
关键词 ：
Coal pile load; Deformation analysis; Finite element; Numerical platform; Pile group bearing platform; Pile-soil interaction; Soft soil ground; Stiffening effect Coal pile load; Deformation analysis; Finite element; Numerical platform; Pile group bearing platform; Pile-soil interaction; Soft soil ground; Stiffening effect
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| GB/T 7714 | Xi, A.-B. , Wang, T. , Cui, C.-Y. et al. Three-dimensional numerical analysis for soft soil-pile group-bearing platform system under influence of coal pile load [堆煤荷载下软土-群桩-承台体系三维数值分析*] [J]. | Journal of Shenyang University of Technology , 2019 , 41 (6) : 705-709 . |
| MLA | Xi, A.-B. et al. "Three-dimensional numerical analysis for soft soil-pile group-bearing platform system under influence of coal pile load [堆煤荷载下软土-群桩-承台体系三维数值分析*]" . | Journal of Shenyang University of Technology 41 . 6 (2019) : 705-709 . |
| APA | Xi, A.-B. , Wang, T. , Cui, C.-Y. , Meng, K. , Liang, Z.-M. , Xing, G.-L. . Three-dimensional numerical analysis for soft soil-pile group-bearing platform system under influence of coal pile load [堆煤荷载下软土-群桩-承台体系三维数值分析*] . | Journal of Shenyang University of Technology , 2019 , 41 (6) , 705-709 . |
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