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| 1 | Effect of Heat Input on Microstructure and Mechanical Properties of Joints Made by Bypass-Current MIG Welding–Brazing of Magnesium Alloy to Galvanized Steel显示文摘Experiments were carried out with bypass-current MIG welding–brazing of magnesium alloy to galvanized steel to investigate the effect of heat input on the microstructure and mechanical properties of lap joints. Experimental results indicated that the joint efficiency tended to increase at first and then to reduce with the increase of heat input. The joint efficiency reached its maximum of about 70% when the heat input was 155 J/mm. The metallurgical bonding between magnesium alloy and steel was a thin continuous reaction layer, and the intermetallic compound layer consisted of Mg–Zn and slight Fe–Al phases. It is concluded that bypass-current MIG welding–brazing is a stable welding process, which can be used to achieve defect-free joining of magnesium alloy to steel with good weld appearances. | Yugang Miao Bintao Wu Xiangfang Xu Duanfeng Han | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，6： | 8 |
| 2 | Research on a Multi-grid Model for Passenger Evacuation in Ships显示文摘In order to enhance the authenticity and accuracy of passenger evacuation simulation in ships, a new multi-grid model was proposed on the basis of a traditional cellular automata model. In the new model finer lattices were used, interaction of force among pedestrians or between pedestrians and constructions was considered, and static floor fields in a multi-level exit environment were simplified into cabin and exit static floor fields. Compared with the traditional cellular automata model, the multi-grid model enhanced the continuity of the passengers'track and the precision of the boundary qualifications. The functions of the dislocation distribution of passengers as well as partial overlap of tracks due to congestion were realized. Furthermore, taking the typical cabin environment as an example, the two models were used to analyze passenger evacuation under the same conditions. It was found that the laws of passenger evacuation simulated by the two models are similar, while the simulation's authenticity and accuracy are enhanced by the multi-grid model. | Miao Chen Duanfeng Han Haipeng Zhang | 2011 | Journal of Marine Science and Application2011，10，3： | 4 |
| 3 | Numerical Simulations of the Ice Load of a Ship Navigating in Level Ice Using Peridynamics显示文摘In this study,a numerical method was developed based on peridynamics to determine the ice loads for a ship navigating in level ice.Convergence analysis of threedimensional ice specimen with tensile and compression loading are carried out first.The effects of ice thickness,sailing speed,and ice properties on the mean ice loads were also investigated.It is observed that the ice fragments resulting from the icebreaking process will interact with one another as well as with the water and ship hull.The ice fragments may rotate,collide,or slide along the ship hull,and these ice fragments will eventually drift away from the ship.The key characteristics of the icebreaking process can be obtained using the peridynamic model such as the dynamic generation of cracks in the ice sheet,propagation and accumulation of ice fragments,as well as collision,rotation,and sliding of the ice fragments along the ship hull.The simulation results obtained for the ice loads and icebreaking process were validated against those determined from the Lindqvist empirical formula and there is good agreement between the results. | Yanzhuo Xue Renwei Liu Yang Liu Lingdong Zeng Duanfeng Han | 2019 | Computer Modeling in Engineering & Sciences2019，，11： | 3 |
| 4 | Effect of laser offsets on joint performance of laser penetration brazing for magnesium alloy and steel 显示文摘 | Miao Yugang Han Duanfeng Yao Jingzheng | 2010 | Materials and Design2010，31，： | 1 |
| 5 | Effect of laser offsets on joint performance of laser penetration brazing for magnesium alloy and steel显示文摘 | Yugang Miao Duanfeng Han Jingzheng Yao Feng Li | 2009 | Materials and Design2009，，6： | 1 |
| 6 | Microstruc-ture and interface characteristics of laser penetration brazed mag-nesium alloy and steel 显示文摘 | Miao Yugang Han Duanfeng Yao Jingzheng | 2010 | Science and Technology of Weldingand Joining2010，15，2： | 1 |
| 7 | Gas flow and filter ventilation of an unlit cigarette: model building,numerical solution and experimental validation显示文摘Understanding the fundamcntal relationship betwecn gas dilution rate of a cigarette and key cigarette design parameters is important in the overall control of smoke yield.In this work,an equation was derived to express the total gas dilution with the cigarette rod length,cigarette paper air permeability,and the filter ventilation level.The relationship was validated using experimental results.The accuracy of the developed model was dependent on the regression method used,i.e.,linear or a nonlinear.The expression provides a quantitative description of the interactions between filter ventilation level,cigarette length,cigarette circumference and cigarette paper air permeability and the total air dilution at the cigarette's mouth end. | WANG Le CUI Xiaomeng YOU Min YI Bin XIE Guoyong LU Duanfeng DENG Nan ZHANG Ke ZHANG Mingjian LI Bin WANG Bing | 2018 | 烟草科技2018，51，A01： | 0 |
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