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| 1 | Power Flow Response Based Dynamic Topology Optimization of Bi-material Plate Structures显示文摘Work on dynamic topology optimization of engineering structures for vibration suppression has mainly addressed the maximization of eigenfrequencies and gaps between consecutive eigenfrequencies of free vibration, minimization of the dynamic compliance subject to forced vibration, and minimization of the structural frequency response. A dynamic topology optimization method of bi-material plate structures is presented based on power flow analysis. Topology optimization problems formulated directly with the design objective of minimizing the power flow response are dealt with. In comparison to the displacement or velocity response, the power flow response takes not only the amplitude of force and velocity into account, but also the phase relationship of the two vector quantities. The complex expression of power flow response is derived based on time-harmonic external mechanical loading and Rayleigh damping. The mathematical formulation of topology optimization is established based on power flow response and bi-material solid isotropic material with penalization(SIMP) model. Computational optimization procedure is developed by using adjoint design sensitivity analysis and the method of moving asymptotes(MMA). Several numerical examples are presented for bi-material plate structures with different loading frequencies, which verify the feasibility and effectiveness of this method. Additionally, optimum results between topological design of minimum power flow response and minimum dynamic compliance are compared, showing that the present method has strong adaptability for structural dynamic topology optimization problems. The proposed research provides a more accurate and effective approach for dynamic topology optimization of vibrating structures. | XUE Xiaoguang LI Guoxi XIONG Yeping GONG Jingzhong | 2013 | Chinese Journal of Mechanical Engineering2013，26，3： | 3 |
| 2 | Taxonomy on crane flies from Mountain Huang, China, with descriptions of two new species(Diptera: Tipulidae)显示文摘The paper reports eight species from Mountain Huang, Anhui, China, including two new species, Nephrotoma huangshanensis sp. nov. and Tipula(Pterelachisus) pseudobiaciculifera sp. nov. The males of four species, Pselliophora xanthopimplinaEnderlein, 1921, Tanyptera hubeiensis Yang & Yang, 1988, Tipula coxitalis Alexander, 1935 and Tipulodina xyris(Alexander, 1949) are redescribed and illustrated, with new morphological characters. All specimens are deposited in the animal specimen room, School of Life Sciences, Anqing Normal University, Anhui Province, China. | Qiulei Men Guoxi Xue Fang Wang | 2016 | Zoological Systematics2016，41，1： | 2 |
| 3 | Suprapubic‐assisted laparoendoscopic single‐site surgery ( LESS ) in urology: our experience显示文摘 | Xiaofeng Zou Guoxi Zhang Yijun Xue Yuanhu Yuan Rihai Xiao Gengqing Wu Xiaoning Wang Yuting Wu Dazhi Long Jun Yang Hui Xu Folin Liu Xu Zhang | 2013 | BJU Int2013，，2： | 1 |
| 4 | The Application of Reliability Based Optimization of Tophat Stiffened Composite Panels Subject to Bi-Directional Buckling Loads显示文摘 | Xiaoguang Xue Guoxi Li Adam James Sobey Ramanand Ajit Shenoi | 2013 | 材料科学与工程(中英文B版)2013，3，11： | 0 |
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