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Integrated modeling analysis of a novel hexapod and its application in active surface 会议论文
Kiruna, Sweden, 2011-8-17
Dehua Yang; Lorenzo Zago; Hui Li; Gregory Lambert; Guohua Zhou; Guoping Li
收藏  |  浏览/下载:18/0  |  提交时间:2014/01/07
Dual-bottom-electrode CMUT based on standard CMOS process 会议论文
6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011, Kaohsiung, Taiwan
作者:  Ting Yu;  Xingqiang Lu;  Fengqi Yu
收藏  |  浏览/下载:11/0  |  提交时间:2015/08/25
Surface shape optimization for the space membrane reflector (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
Zhang P.; Jin G.; Zhong X.; Zhang Y.; Qi Y.-C.; Jie P.
收藏  |  浏览/下载:16/0  |  提交时间:2013/03/25
Space membrane reflector is very promised for optical quality application with the merits of ultra-lightweight and flexible. In order to improve the surface precision of membrane reflectors  the formation and surface shape error of a membrane at uniform load are studied based on the henky-cambell equations of circular membrane. The ANSYS software is used to build an optimization model of membrane reflector surface shape  in which the yield strength is the state variable  the surface load on ten concentric annular regions of the mirror is the design variable  and the minimum RMS between ideal surface and mirror surface is the target function. and the theoretical and experimental result show that RMS and PV of the optimized surfaces are reduced respectively than those before optimization. In a word  this paper offers the theoretical and experimental basis of the polyimide membrane reflector. 2011 IEEE.  
Random vibration analysis on the support of strapdown inertial navigation system (EI CONFERENCE) 会议论文
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Hao X.; Li M.; Jia H.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
Vibration of the support is an important factor to the accuracy of strapdown inertial navigation. To get vibration characteristics of the support  FEM model of the support was created with Ansys  and then response characteristics were analyzed on the support under the separated random loads during carrier flight  including the phases of subsonic and subsonic. To validate the analysis method  wide band random vibration test was done on the points of the support  which are used for mounting inertial instruments. The comparison of the analysis and the test data shows that the relative error of analysis result is not more than 13%. According to the two results the support structure was improved. Finally random vibration analysis was carried out on the improved one. The result shows that the acceleration response was largely reduced than before. This research can be a reference of performance improvement of the strapdown inertial support and navigation system precision. 2011 IEEE.  
Thermal analysis on supersonic ellipsoidal dome (EI CONFERENCE) 会议论文
2nd International Conference on Multimedia Technology, ICMT 2011, July 26, 2011 - July 28, 2011, Hangzhou, China
Jiang Z.; Wei Q.; Jia H.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Studied the transient thermal transfer analysis method due to a kind of supersonic ellipsoidal dome  which is a conformal dome. Illuminated the principle of transient thermal transfer analysis. Accomplished the transient thermal analysis based on the model of ellipsoidal dome  and studied the influence about the different material and the different velocity. Considered three materials consist of MgF2  Al2O3  and ZnS  and meanwhile  the velocity was Mach2.5  and the time consists of 10s  20s and 60s. The temperature initial loads were from FLUENT thermal simulation. The thermal conduction analysis and the thermal convection analysis were finished in software ANSYS  in which the entire transient thermal analysis consists of modeling  meshing element  calculating and getting the results. The different temperature distributions based on varied time were gotten about the different materials. The results from analysis showed the temperature distribution of the structure of ellipsoidal dome  which could help the following coupled thermal-structure analysis. 2011 IEEE.  
Dynamic optimum design and analysis of cam wave generator for harmonic gear drive (EI CONFERENCE) 会议论文
2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China
Xiao Q.; Han X.; Jia H.
收藏  |  浏览/下载:15/0  |  提交时间:2013/03/25
Mathematical models of structural optimization were established for the cam wave generator  then a conceptual model  by integrally taking its static and dynamic performance into consideration  which satisfied the model acted by four concentrated forces  while the dynamic optimum design was carried out. The topology optimization of the cam wave generator was performed based on artificial material density method  was obtained. And the size optimization of the cam wave generator was also executed based on the zero-order method in software Ansys after setting up its parameterized model. The optimized results indicate that its final volume declines to 1284.217mm3 from its 1397.830mm3  which reduced by 42.18% than the original volume of cam (2221.224mm3). Simultaneously  the static analysis and modal analysis were implemented  and the results show that the static and dynamic performance complies with the design requirements  proving that the results of dynamic optimum design are reasonable. The optimized results in paper are realizable in engineering. And the study method provides not only a reference to decreasing design mass and lowering inertia of the cam wave generator  but also an important basis of lightweight design of harmonic gear drive. 2011 IEEE.  
Effect of sample shape and size on the thermal shock resistance for ultra-high temperature ceramics 会议论文
Zeng, Tao; Yan, Shi; Gu, Yu; Jiang, Lili; Fang, Daining; Gao, Yu
收藏  |  浏览/下载:3/0  |  提交时间:2015/11/13
高压高应变率条件下导电高聚物压阻效应实验研究 会议论文
雷金涛; 马博; 张明华; 白树林; 陈建康
收藏  |  浏览/下载:4/0  |  提交时间:2015/11/11
Design and optimization of a clamping mechanism for piezoelectric inchworm actuator 会议论文
Proceeding of SPIE-the International Society for Optical Engineering, 2011
作者:  Wang Geng;  Guan Chunlin;  Zhang Xiaojun;  Rao Changhui
收藏  |  浏览/下载:12/0  |  提交时间:2016/11/24
Parameter analysis of hot plate based on uniform design 会议论文
2011 International Conference on Electronics and Optoelectronics (ICEOE 2011), Dalian, China, July 29-31, 2011
作者:  Wang JZ(王靖震);  Liu WJ(刘伟军)
收藏  |  浏览/下载:8/0  |  提交时间:2012/06/06


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