机构

• 长春光学精密机械与物... [2]
• 力学研究所 [1]
• 武汉岩土力学研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [4]

发表日期

• 2011 [1]
• 2010 [2]
• 2009 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 The numerical simulation research of the deformation character for the soft clay foundation in the unloading condition 会议论文  OAI收割 Jinan, PEOPLES R CHINA, OCT 14-16, 2011 作者:  Tang Bin;  Wang Ren;  Wang Hongxing   |  收藏  |  浏览/下载：22/0  |  提交时间：2018/06/05 Soft clay  Unloading condition  Numerical simulation  Engineering example analysis   Analysis of inertia dyadic uncertainty for small agile satellite with control moment gyros (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:  Zhang L.;  Zhang L.;  Sun Z. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 With the increasing demands for the agility of the next earth imaging satellite  control moment gyro (CMG) is considered to be the most suitable actuator because of its torque amplification capability. However  a CMG system may introduce uncertainty of inertia dyadic to a satellite's attitude control system. The uncertainty is negligible for large space vehicles  but it has not been tested whether it can be ignored for small agile satellites. How to model the CMG system inertia dyadic varying with gimbal angles  and what influence it will put on the performance of attitude control system haven't been test accurately as well. All of them are dealt with mathematically and accurately in this paper. This paper firstly gives mathematic descriptions of the inertia dyadic of the 4-CMG pyramid configuration system  varying with gimbal angles  and then designs a variable structure control law for small agile satellite using CMGs. Finally  numerical simulation suggests that the inertia dyadic variation of a 4-CMG pyramid configuration system is approximately centesimal of the total inertia dyadic of the satellite  and that the designed variable structure control law is of good robust performance for an example of large-angle attitude maneuver  despite of the variation of the inertia dyadic. 2010 IEEE.   DPD simulation of multiphase flow at small scales 会议论文  OAI收割 2nd International Conference on Computer and Automation Engineering, ICCAE 2010, Singapore, Singapore, February 26, 2010 - February 28, 2010 作者:  Liu MB(刘谋斌);  Chang JZ(常建忠);  Liu HT 收藏  |  浏览/下载：24/0  |  提交时间：2017/06/20 Complex geometries  Dissipative particle dynamics  Gas phasis  Grid-based  Lagrangian particle method  Mesoscale  Micro-scale  Micro-scales  Moving interface  Multi-phase fluid flow  Multiphase fluid motion  Multiple components  Numerical example  Particle-particle interactions  Single components  Small scale  Two-component  Viscosity contrast  Weight functions   Robust stabilization for a class of uncertain system with time-varying state delay (EI CONFERENCE) 会议论文  OAI收割 2009 ETP/IITA World Congress in Applied Computing, Computer Science, and Computer Engineering, ACC 2009, August 8, 2009 - August 9, 2009, Sanya, China 作者:  Zhang T. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 The robust stabilization of uncertain system with time-varying state delay is studied. Based on Lyapunov-Razumkhin approach  the robust controller is designed by solving a set of LMIs. In the controller design procedure there are not any requirements for the derivative of the delay  which allows fast time-varying delay. Numerical example shows the effectiveness of the proposed method. 2009 ETP.