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A Study of Ground Maneuver Stability of Multiple-bogie Undercarriage 会议论文
IEEE/CSAA International Conference on Aircraft Utility Systems (AUS), Beijing, PEOPLES R CHINA, 2016-10-10
作者:  Zhao Zhe;  Wang Hongxin;  Li Linwen;  Jiang Yimin
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/30
Influences of the Front Wheel Steering Angle on Vehicle Handling and Stability 会议论文
International Conference on Mechanical Engineering and Intelligent Systems (ICMEIS 2012), AUG 25-26, 2012
作者:  Ren Chuanbo;  Zhang Cuicui;  Liu Lin
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/31
Non-linear compensation algorithm of LOS locating in aerial remote sensor (EI CONFERENCE) 会议论文
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Li J.; Xiu J.; Huang P.; Li Y.; Chen L.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
A non-linear light-of-sight(LOS) locating compensation algorithm for certain aerial remote sensor is presented in this paper. The LOS locating system is composed of two main components  which are an inertial reference frame to provide coarse LOS locating and a 2-axis Fast Steering Mirror to remove the frame's residual error. The azimuth and elevation of LOS are both affected by the FSM two-degree-of-freedom rotation  which should be dealt with to raise the accuracy of LOS location. This paper extrapolates LOS locating algorithm of FSM by coordinate transformation  and gives corresponding deviation analysis for different LOS poiting angles. It is found that the angle deviation grows rapidly with range of FSM's travel enlarging  so the deviation must be eliminated. Through the data analysis for deviation  a non-linear compensation algorithm is proved effective to reduce the error of LOS significantly. Taking LOS changing in [-3 deg  3 deg] as an example  two analytic expressions are given  and the LOS locating accuracy rises by 34 times compared with non-linear compensation unused  and the cross coupling of LOS loating is 0.08%. 2011 IEEE.  
United steering of control moment gyros for small satellite with limited gimbal rate (EI CONFERENCE) 会议论文
2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China
Xu K.; Jin G.; Chen C.
收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25
Single Gimbal Control Moment Gyroscopes (SGCMG) can could provide large control torque and quick attitude maneuver rate to small satellites without any increase in power  volume and mass  which will help small satellites become more powerful. Singularity avoidance and failure steering are two important problems to SGCMGs and also the main focus in this field. A new united steering law for SGCMGs with capabilities of singularity avoidance and quick transition of singularity surfaces is developed in this paper. To ensuring the existence of null motion  the commanded output of controller was changed real-timely as the variation of singularity measurement of SGCMGs  which can avoid the gimbal angle rate saturation. This developed steering law could help the SGCMGs provide real-time control toques in spite of limitation of gimbal angle rate. Simulation analysis is conducted for a certain 4-SGCMG system mounted on a small satellite. Simulation results indicate that the steering law is very effective in singularity avoidance. 2010 IEEE.  
Composite-structure frequency selective surface with tripole elements (EI CONFERENCE) 会议论文
8th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2008, November 2, 2008 - November 5, 2008, Kunming, China
Wang S.; Gao J.; Feng X.
收藏  |  浏览/下载：64/0  |  提交时间：2013/03/25
Simulation and Kinematics Analysis of Composite Turning for the Omni-Direction AGV 会议论文
作者:  Shi, Enxiu;  Guo, Junjie;  Shi, Enxiu;  Huang, Yumei;  Zhang, Lixin
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/18
Simulation and Kinematics Analysis of Composite Turning for the Omni-Direction AGV 会议论文
2008 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY, VOLS 1-5, 2008-01-01
作者:  Shi, Enxiu;  Guo, Junjie;  Huang, Yumei;  Zhang, Lixin
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/25
Research on 10.6 m laser beam monitoring in CO2 laser processing system (EI CONFERENCE) 会议论文
Infrared Materials, Devices, and Applications, November 12, 2007 - November 15, 2007, Beijing, China
Shi Y.; Gao Y.; Deng W.; Shao S.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
It is a key point of CO2 laser beam monitoring in the CO 2 laser processing system to achieve alignment between CO2 laser and PL (pointing and launching) system. By monitoring the angle offset of CO2 laser beam  the compensation can be gotten witch is given to fast-steering mirror to rectify the direction of laser beam. But the normal photoelectric detector can not get the laser signal because of CO2 laser's high energy and long wavelength. Its wavelength is 10.6m and its power can reach kW level. Consequently  it is difficult to detect the high-energy 10.6m laser beam directly. So  we monitored the output mirror of laser resonator superseded the laser beam  indirectly. The laser beam monitoring system could be designed based on CCD laser auto-collimation angular measurement principle and image processing method. In this paper  application of CCD laser auto-collimation angular measurement principle and image processing method for CO2 laser beam monitoring system is introduced particularly  After design  fabrication and alignment  the monitoring system can be used for experimental study that including angular measurement accuracy and angle offset measurement of CO2 laser beam. Angle offset range and angle variation rule of CO2 laser beam is also can be acquired for further research.  
Vehicle stability control: Four-wheel-steer and steer-by-wire 会议论文
International Conference on Mechanical Engineering and Mechanics, Nanjing, China, October 26-28, 2005
作者:  Gao L(高路);  Yu HB(于海斌)
收藏  |  浏览/下载：45/0  |  提交时间：2012/06/06
The effect of vehicles steering tilt angle impact human thorax (CPCI-S收录) 会议论文
ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY III, PTS 1-4
作者:  Cai, Zhihua[1];  Lan, Fengchong[1];  Chen, Jiqing[1]
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/15

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