中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Multi-scale computational method for dynamic thermo-mechanical performance of heterogeneous shell structures with orthogonal periodic configurations 期刊论文  OAI收割
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2019, 卷号: 354, 页码: 143-180
作者:  
Dong, Hao;  Zheng, Xiaojing;  Cui, Junzhi;  Nie, Yufeng;  Yang, Zhiqiang
  |  收藏  |  浏览/下载:78/0  |  提交时间:2020/01/10
Synthesis and characterization of functionalized graphene oxide/polyacrylamide nanocomposites using physical adsorbing and chemical grafting and their applications in polyimide matrix 期刊论文  OAI收割
Journal of Materials Science, 2018, 期号: 53, 页码: 11460-11472
作者:  
Ji Li;  Li Hongxuan;  Chen Lei;  Zhou Huidi;  Chen Jianmin
  |  收藏  |  浏览/下载:64/0  |  提交时间:2019/01/02
Experimental study of the compressive performance of life jacket use polyurethane foam for blast wave protection 会议论文  OAI收割
2012 2nd International Conference on Advanced Material Research, ICAMR 2012, Chengdu, China, JAN 07-08, 2012
作者:  
Li MH;  Bai CH;  Shi MW;  Wei YP(魏延鹏);  Zhou H
收藏  |  浏览/下载:33/0  |  提交时间:2013/02/26
Contact-impact analys with clearance hinge in flexible multi-body system (EI CONFERENCE) 会议论文  OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Ge M.; Jia H.; Liu B.
收藏  |  浏览/下载:52/0  |  提交时间:2013/03/25
Hinge in mechanical systems exist small clearance and contact deformation  After consideration of flexible components  cause the system to the wear and tear  impact force reduced at the clearance  noise  contact time increased  vibration  contact-impact areas expand and clearance also caused disturbance of the rod angular velocity of the linkage. 2011 IEEE.  reliability reduce or even failure[1]. Therefore  the hinge clearance and the impact of flexible components in kinetic models should be considered. In this paper  a nonlinear spring-damper hinge clearance model is considered to establish mechanical system structure of dynamic equations[46]  through a four-bar linkage hinge with multi-clearance rotation of ADAMS dynamic simulation for dynamics simulation study. Simulation results show that hinge clearance and link flexible in Four-link mechanism dynamics have a great impact on performance: connection with the clearance lead to pin holes to produce a series of collisions  and a larger initial impact force  
Establishment of airplane flight model and simulation analysis of landing behavior (EI CONFERENCE) 会议论文  OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
作者:  
Li L.;  Li M.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
This paper create a high fidelity plant model of an aircraft landing gear to inclusion into a full aircraft flight simulation for accurately analyzing the performance and influence of landing gear system. The use of domain specific modeling software enables detailed modeling of the physics and facilitates accurate computational simulation of the flight dynamic  aerodynamic  landing gear dynamic and mechanical loads that occur when the landing gear are deployed and retracted during landing and take-off operations. The parameter design space is easily searched by considering a number of different landing scenarios including touching down on one wheel first  to optimize the design. The simulation results show that the aircraft landing gear system mathematical model established appropriately reflects the change of force and moment in the process of taking off and landing  and it is actual in the physical process. 2011 IEEE.  
Aircraft landing gear simulation using multidomain modeling technology (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Information Technology, Computer Engineering and Management Sciences, ICM 2011, September 24, 2011 - September 25, 2011, Nanjing, Jiangsu, China
作者:  
Li M.
收藏  |  浏览/下载:40/0  |  提交时间:2013/03/25
In order to accurately analyze the performance and influence of landing gear system  this paper presents a high fidelity plant model of an aircraft landing gear to inclusion into a full aircraft flight simulation. The use of domain specific modeling software enables detailed modeling of the physics and facilitates accurate computational simulation of the flight dynamic  aerodynamic  landing gear dynamic and mechanical loads that occur when the landing gear are deployed and retracted during landing and take-off operations. The parameter design space is easily searched by considering a number of different landing scenarios including touching down on one wheel first  to optimize the design. The simulation results show that the aircraft landing gear system mathematical model established appropriately reflects the change of force and moment in the process of taking off and landing  and it is improve the precision of flight simulation. 2011 IEEE.  
Nonlinear control design for system with mechanical resonance based on two tracking-differentiators (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China
作者:  
Li J.;  Li Y.;  Li Y.;  Li Y.;  Li Y.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
A nonlinear control strategy for controlling a motion system with mechanical resonance is presented in this paper. A mathematical model of the servo system is derived according to the parameters of an actual system. By using two Tracking-Differentiators  reference input and system output are tracked and their differential signals are given simultaneously. A nonlinear PD control law in velocity loop is designed based on non-smooth feedback. The simulation results show that the control law is superior remarkably in performance to linear PD control law and the classical PID control law. Tracking-Differentiator resolves the contradiction between rapidity and overshoot of system response. The nonlinear PD control law improves system dynamic performance and intensifies the ability of disturbance rejection. The control design achieved in this paper makes the servo system more robust. 2010 IEEE.  
INVESTIGATION ON CRYSTALLIZATION AND DYNAMIC MECHANICAL PROPERTIES OF POLY(BUTYLENES SUCCINATE)/nano-SiO2 COMPOSITES 期刊论文  OAI收割
ACTA POLYMERICA SINICA, 2009, 期号: 10, 页码: 1043-1049
作者:  
Luo Faliang;  Zhang Xiuqin;  Li Rongbo;  Fu Dongsheng;  Gan Zhihua
  |  收藏  |  浏览/下载:30/0  |  提交时间:2019/04/09
Investigation on crystallization and dynamic mechanical properties of poly(butylenes succinate)/nano-sio2 composites 期刊论文  iSwitch采集
Acta polymerica sinica, 2009, 期号: 10, 页码: 1043-1049
作者:  
Luo Faliang;  Zhang Xiuqin;  Li Rongbo;  Fu Dongsheng;  Gan Zhihua
收藏  |  浏览/下载:38/0  |  提交时间:2019/05/10