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	Influence of igneous intrusions on the temperature field and organic maturity of the Changchang Sag, Qiongdongnan Basin, South China Sea 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 1, 页码: 159-169 作者: Tang Xiao-Yin; Zhang Gong-Cheng; Liang Jian-She; Yang Shu-Chun; Rao Song \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2018/09/26 Changchang Sag Igneous intrusion Temperature field Thermal history Organic maturity Two-dimensional finite element method
	Influence of igneous intrusions on the temperature field and organic maturity of the Changchang Sag, Qiongdongnan Basin, South China Sea 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 1, 页码: 159-169 作者: Tang Xiao-Yin; Zhang Gong-Cheng; Liang Jian-She; Yang Shu-Chun; Rao Song \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2018/09/26 Changchang Sag Igneous intrusion Temperature field Thermal history Organic maturity Two-dimensional finite element method
	Influence of igneous intrusions on the temperature field and organic maturity of the Changchang Sag, Qiongdongnan Basin, South China Sea 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 1, 页码: 159-169 作者: Tang Xiao-Yin; Zhang Gong-Cheng; Liang Jian-She; Yang Shu-Chun; Rao Song \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2018/09/26 Changchang Sag Igneous intrusion Temperature field Thermal history Organic maturity Two-dimensional finite element method
	Study on ultra-light secondary baffle for coaxial two-mirror telescope (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 L.; Zhang L. 收藏 \| 浏览/下载：61/0 \| 提交时间：2013/03/25 The coaxial two-mirror telescope consists of two mirrors facing each other. Classical two-mirror arrangements are Gregorian and Cassegrain. These systems are usually applied to space telescopes and often have optical baffles to prevent stray light from entering the focal plane. The optical baffles consist of concentric rings suspended between the secondary and the primary mirror. The secondary baffle for a large two-mirror optical system is designed and analyzed in this paper. According to mission of a telescope the structure should have high stiffness and high reliability and light weight. Compared with invar aluminum alloy and titanium alloy carbon fiber composite is currently the best material in terms of weight-to-strength ratio. It also has advantages of high temperature tolerance and low thermal expansion. So carbon fiber composite is chosen as material to meet requirements of the coaxial telescope. In this paper optimization method based on finite element analysis (FEA) is used for design the secondary baffle. Minimum weight of the baffle is chosen as an objective function. Thicknesses of former tube and vanes are chosen as variables. Analysis results show that the designed secondary baffle has maximum diameter of 180mm total length of 120mm and weighs 142g. And its fundamental frequency reaches 651Hz. Therefore the baffle has many advantages such as ultra-light weight high stiffness and dimensional stability etc. The optimization method and the baffle design can be helpful to other coaxial telescopes such as Cassegrain Gregorian and their subdivisions. 2012 IEEE.
	Motion mechanism analysis of a two-degree-of-freedom spherical motor (EI CONFERENCE) 会议论文 OAI收割 2nd International Conference on Information Engineering and Computer Science, ICIECS 2010, December 25, 2010 - December 26, 2010, Wuhan, China 作者: Guo K. 收藏 \| 浏览/下载：19/0 \| 提交时间：2013/03/25 The working principle of a two-degree-of-freedom piezoelectric spherical motor using only one piezoelectric element was analyzed. The resonance frequencies of the motor's plate type piezoelectric vibrator were calculated by finite element method. The computer simulation was executed to analyze the motion trajectory of the four contact points between the stator and the sphere. Simulation results verified that the four contact points can form timing reasonable elliptical trajectories which re designed to drive the sphere to form two rotation degrees of freedom. The conclusion indicated the formation of two-dimensional movement mechanism of the spherical motor. 2010 IEEE.