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浏览/检索结果: 共43条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Robust Design Optimization of Viscoelastic Damped Composite Structures Integrating Model Order Reduction and Generalized Stochastic Collocation 期刊论文  OAI收割 AEROSPACE, 2024, 卷号: 11, 期号: 12, 页码: 32 作者:  Wang, Tianyu;  Xu, Chao;  Li T(李腾)   |  收藏  |  浏览/下载：9/0  |  提交时间：2025/02/10 robust design optimization  viscoelastic damped structures  model order reduction  uncertainty propagation  stochastic collocation method   Tandem, long-duration, ultra-high-altitude tethered balloon and its system characteristics 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2020, 卷号: 66, 期号: 10, 页码: 2446-2465 作者:  Zhang DH;  Luo HB;  Cui YX;  Ceng XH(曾晓辉);  Wang S   |  收藏  |  浏览/下载：31/0  |  提交时间：2020/11/30 Tethered balloon  Ultra-high altitude  Static model  Design method  Sensitivity analysis   Analyzing the general biased data by additive risk model 期刊论文  OAI收割 SCIENCE CHINA-MATHEMATICS, 2017, 卷号: 60, 期号: 4, 页码: 685-700 作者:  Li YanFeng;  Ma HuiJuan;  Wang DeHui;  Zhou Yong   |  收藏  |  浏览/下载：28/0  |  提交时间：2018/07/30 additive risk model  unified method  length-biased data  case-cohort design   The Rapid Development of Three-phase Grid-forming Micro-source Inverter Based on SMC and PI Control 会议论文  OAI收割 2017 International Electrical and Energy Conference (CIEEC 2017), Beijing, China, October 25-27, 2017 作者:  Liu J(刘君);  Hu B(胡博);  Li XH(李先宏);  Zang CZ(臧传治);  Bian J(卞晶)   |  收藏  |  浏览/下载：30/0  |  提交时间：2017/12/21 grid-forming micro-source inverter  sliding mode control  PI control  particle swarm optimization  model design method   The Rapid Development of a Three-phase Grid-forming Micro-source Inverter 会议论文  OAI收割 2017 2nd International Conference on Power and Renewable Energy (ICPRE 2017), Chengdu, China, September 20-23, 2017 作者:  Hu B(胡博);  Gu WJ(谷万江);  Li XH(李先宏);  Zang CZ(臧传治);  Bian J(卞晶)   |  收藏  |  浏览/下载：31/0  |  提交时间：2017/12/21 micro-source inverter  model design method  sliding mode control  PI control   A study of the optimization design method for a high speed train 会议论文  OAI收割 Cagliari, Sardinia, Italy , 5-8 April 2016 作者:  Zhao GL;  Sun ZX(孙振旭);  Yao SB(姚拴宝);  Guo DL(郭迪龙);  Yang GW(杨国伟)   |  收藏  |  浏览/下载：43/0  |  提交时间：2018/11/08 Aerodynamic drag  Genetic algorithms  Lift  Railroad cars  Railroads  Aerodynamic lift  Ga  grnn  High speed train (HST)  Kriging model  Optimization design  Optimization method  Surrogate model   Dynamic design method for deep hard rock tunnels and its application 期刊论文  OAI收割 Journal of Rock Mechanics and Geotechnical Engineering, 2016, 卷号: 8, 期号: 4, 页码: 443 作者:  Feng, XiaTing;  Zhang, Chuanqing;  Qiu, Shili;  Zhou, Hui;  Jiang, Quan   |  收藏  |  浏览/下载：20/0  |  提交时间：2021/05/25 Deep hard rock tunnels  Dynamic design method  Rockburst  In situ stress  Constitutive model  Engineering geology. Rock mechanics. Soil mechanics. Underground construction  TA703-712   Longitudinal control law design and simulation of fixed-wing UAV (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China 作者:  Duan Z. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 Taken some fixed-wing UAV as the study object  the aircraft movement was broken down into the longitudinal movement and lateral movement according to the linearized small perturbation principle  the longitudinal control law design method was discussed using root locus which belonged to classical control theory. The six degrees of freedom nonlinear model simulation result shows that: the control parameters designed are reasonable  the simulation profile is fully consistent with the setting profile  the control effect of pitch angle loop and altitude loop meets with the indices requirements  the method is mature and reliable  easy to realize in engineering. (2013) Trans Tech Publications  Switzerland.   LABTM control system based on FPGA (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan 作者:  Wang Y.;  Yu P. 收藏  |  浏览/下载：152/0  |  提交时间：2013/03/25 This paper presents the digital PI control method for design and simulation of a high precision limited angle brushless torque motor control system in Field Programmable Gate Array device (FPGA). The direct drive structures which are widely applied in many servo control fields. Matlab Xilinx System GeneratorR toolbox based on Fixed-Point Arithmetic is used to design the digital PI controller using DSP architecture  plot the responses of the control system and generate the VHDL source code. The control system model consists of a digital PI  a real LABTM  and a real absolute Inductosyn  encoder to rpm and position blocks. Through loading generated codes in process of the simulation that built by the digital discrete model  it is verified that the rising time of current loop is only 1.2ms  and rate loop is 8ms  overshoot is rarely 4.2%. Finally  the comprehensive positioning accuracy of system can reach up to 5 arc sec  and the rate jitter achieves 5% with the 4 arc sec accuracy absolute Inductosyn. (2013) Trans Tech Publications  Switzerland.   The application of digital signal processing (DSP) for the real time solving of artillery fire control exterior trajectory (EI CONFERENCE) 会议论文  OAI收割 2012 IEEE 3rd International Conference on Software Engineering and Service Science, ICSESS 2012, June 22, 2012 - June 24, 2012, Beijing, China 作者:  Li D. 收藏  |  浏览/下载：141/0  |  提交时间：2013/03/25 Method of gain firing data by calculate the group of differential equation has the advantages of high repeatability and high accuracy  But much of the CPU time is occupied by the task of re-iteration in computational processing. Therefore  it is not the real time processing. This paper introduces a method to quickly determine angle of firing by iteration method  which realizes Runge-Kutta method for the equations of exterior ballistic according to the model of mass center motion of projectile. Moreover  it also provides the flow of real-time integral solution and be proved by the simulation of MATLAB. Its accuracy satisfies the requirements. This work can be as reference for the design of opt-electrical fire control system and the demonstration work. 2012 IEEE.