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Similitude design for the vibration problems of plates and shells: A review 期刊论文  OAI收割
FRONTIERS OF MECHANICAL ENGINEERING, 2017, 卷号: 12, 期号: 2, 页码: 253-264
作者:  
Zhu Yunpeng;  Wang You;  Luo Zhong;  Han Qingkai;  Wang Deyou
  |  收藏  |  浏览/下载:27/0  |  提交时间:2021/02/02
动态水压下迷宫流道水流运动特性研究 期刊论文  OAI收割
Transactions of the Chinese Society for Agricultural Machinery(农业机械学报), 2015, 卷号: 46, 期号: 9, 页码: 167-172
作者:  
郑 超;  吴普特;  张 林;  朱德兰;  陈 昕
收藏  |  浏览/下载:21/0  |  提交时间:2016/04/05
Three-loop autopilot design and simulation (EI CONFERENCE) 会议论文  OAI收割
2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China
作者:  
Zhang Y.
收藏  |  浏览/下载:44/0  |  提交时间:2013/03/25
In order to realize missile real-time change flight trajectory  three-loop autopilot is setting up. The structure characteristics  autopilot model  and control parameters design method were researched. Firstly  this paper introduced the 11th order three-loop autopilot model. With the principle of systems reduce model order  the 5th order model was deduced. On that basis  open-loop frequency characteristic and closed-loop frequency characteristic were analyzed. The variables of velocity ratio  dynamic pressure ratio and elevator efficiency ratio were leading to correct system nonlinear. And then autopilot gains design method were induced. System flight simulations were done  and result shows that autopilot gains played a good job in the flight trajectory  autopilot satisfied the flight index. 2012 IEEE.  
Dynamic analysis of a flameless combustion model combustor 期刊论文  OAI收割
SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2010, 卷号: 53, 期号: 8, 页码: 2291-2298
作者:  
Cui YuFeng;  Lue Xuan;  Xu Gang;  Nie ChaoQun
收藏  |  浏览/下载:32/0  |  提交时间:2015/12/18
Research on the close noise field of the piezoelectric pump (EI CONFERENCE) 会议论文  OAI收割
2006 IEEE International Conference on Mechatronics and Automation, ICMA 2006, June 25, 2006 - June 28, 2006, Luoyang, China
Jizhuang L.; Jianhui Z.; Shouyin W.; Qixiao X.; Desheng L.
收藏  |  浏览/下载:53/0  |  提交时间:2013/03/25
Restraining the noise  meanwhile  improving the dynamic characteristics of the driving power of piezoelectric pump effectively are the final purposes of doing research on the reciprocating and flexural vibration of the piezoelectric vibrator. However  among many papers regarding piezoelectric pump  there are very few papers about the research on the noise of piezoelectric pump. This is far less than the research on the application of the piezoelectric pump in other fields. In this paper  the research on the flexural vibration deformation and vibration radiation noise of the piezoelectric vibrator are carried out. Firstly  the vibration equations of the piezoelectric vibrator are built and flexural vibration deformation function is deduced. Then  the simplified vibration model of the piezoelectric vibrator is introduced by using vibration theories of micro-area piston. Furthermore  theoretical calculation equations of sound pressure in close noise field and noise contribution equation of fluid in pump are deduced. Finally  a comparison is made between the theoretical calculation value and experimental value  and the contribution quantities of the piezoelectric vibrator and fluid in pump are obtained respectively under different frequencies. The consequence approves that the theory introduced by this research is true. 2006 IEEE.