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J. Cent. South Univ. (2020) 27: 3684-3701 DOI: https://doi.org/10.1007/s11771-020-4510-z Dynamic analysis of a flexible rotor supported by ball bearings with damping rings based on FEM and lumped... bearings with rubber damping rings was proposed by combining the finite element and the mass-centralized method. In the proposed model, the rotor was built with the Timoshenko beam element, while......
Trans. Nonferrous Met. Soc. China 22(2012) 1947-1953 Long-period stacking ordered structures in Mg-3Cu-1Mn-2Zn-1Y damping alloy HUANG Xue-fei1, ZHANG Wen-zheng1, WANG Jing-feng2, WEI Wen-wen2 1... building blocks at a greater scale have not been reported. In this study, the LPSO structures found in a novel damping Mg-3Cu-1Mn-2Zn-1Y alloy were reported, where Zn and Y were added as modified......
Corrosion behavior of as-cast Mg68Zn28Y4 alloy with I-phase SHI Fei(史 菲)1, 2, YU Yuan-chun(于元春)3, GUO Xue-feng(郭学锋)2, ZHANG Zhong-ming(张忠明)2, LI Ying-ying(李瑛颖)1 1. School of Materials...) were prepared by cast method. By simulating the environment of ocean, the alloy was eroded in 3.5% (mass fraction) NaCl for 2, 4 and 30 h. The microstructures of the samples and eroded alloys were......
of Zn content, the strength of the alloy decreases while the ductility is improved. Finally, the damping capacities of the as-cast Mg-10Gd-6Y-xZn-0.6Zr alloys decrease firstly and increase afterwards, which were analyzed and discussed in terms of the Granato-Lücke (G-L) theories and G-L plots. Key words: Mg-Gd-Y-Zn-Zr alloy; precipitate; mechanical property; damping capacity; Granato-Lücke theory 基金项目......
实用M2052合金阻尼行为表征 殷福星1 (1.Steel Research Center, National Institute for Materials Science, Tsukuba,305-0047, Japan) 摘要:名义组分为Mn-20Cu-5Ni-2Fe(原子分数,%)的M2052合金,具有很高的强度和阻尼性能.对该合金在不同条件下的阻尼性能采用多种方法进行了表征.该合金的高阻尼态出现在一个临界温度以下,该温度可以通过改变组分和热处理来调整.合金的室温阻尼性能强烈地依赖于频率,应变振幅以及静载荷的大小. 关键词:阻尼合金; Mn-Cu合金; 应变振幅; 频率; 静载荷; damping alloy; Mn-Cu alloy; strain-amplitude; frequency; static load; [全文内容正在添加中] ......
, superelasticity, shape memory effect and damping capacity are greatly improved. Key words: porous NiTi alloy; microwave sintering; Mg space holder; superelasticity; damping capacity 1 Introduction Nickel... and superelasticity, but also greatly enhances the damping capacity of the porous NiTi alloy. On the other hand, during the heating process, the maximum values of internal friction of the porous NiTi-5Mg......
Damping properties of fly ash/epoxy compositesJian Gu, Gaohui Wu, and Xiao Zhao School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China摘 要:damping capacity of such composites. The damping properties......
J. Cent. South Univ. (2020) 27: 2673-2686 DOI: https://doi.org/10.1007/s11771-020-4490-z Robust force tracking control via backstepping sliding mode control and virtual damping control... the contact force errors caused by trajectory tracking errors, the backstepping sliding mode controller is combined with the adaptive reference trajectory generator. Finally, a virtual damping control......
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Magnesium alloy is the lightest structural material with high specific strength and specific stiffness, good damping capacity and castability[1-3]. Moreover, because of the ease of recycling... Effect of rolling temperature on microstructure and texture of twin roll cast ZK60 magnesium alloy CHEN Hong-mei(陈洪美)1, YU Hua-shun(于化顺)2, Suk-bong KANG3, MIN Guang-hui(闵光辉)2, JIN Yun-xue(金云学)1......
