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学者姓名：黄健萌
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Abstract ：
In the present work,a novel entangled metallic wire material-polyurethane(EMWM-PU)composite was developed through the vacuum infiltration method with the entangled metallic wire material (EMWM)as the matrix and polyurethane as the reinforcement. By comparing the quasistatic compression properties of EMWM and EMWM-PU composites,it was found that the composites exhibited excellent energy consumption and stiffness properties due to the interfacial friction. The pipeline test platform was built,and the vibration acceleration level and insertion loss were used as evaluation indexes. In addition,the effects of EMWM density,excitation levels and preload on the vibration damping performance of the pipeline were studied in detail. The results showed that the EMWM-PU composites have excellent vibration reduction effect in the frequency band of 5—1 000 Hz,and the smaller of the matrix density and the larger the preload during installation,the better the vibration reduction effect. This study provides effective guidance for the design and application of EMWM composites. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
Keyword ：
Damping Damping Energy utilization Energy utilization Pipelines Pipelines Polyurethanes Polyurethanes Wire Wire
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| GB/T 7714 | Zheng, Xiaoyuan , Ren, Zhiying , Wu, Yiwang et al. Research on Vibration Damping Properties of Entangled Metallic Wire Materials-Polyurethane Composites [J]. | Materials Reports , 2024 , 38 (6) . |
| MLA | Zheng, Xiaoyuan et al. "Research on Vibration Damping Properties of Entangled Metallic Wire Materials-Polyurethane Composites" . | Materials Reports 38 . 6 (2024) . |
| APA | Zheng, Xiaoyuan , Ren, Zhiying , Wu, Yiwang , Bai, Hongbai , Huang, Jianmeng , Tan, Guibin . Research on Vibration Damping Properties of Entangled Metallic Wire Materials-Polyurethane Composites . | Materials Reports , 2024 , 38 (6) . |
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Copper particles emitted from braking have become a significant source of environmental pollution.However,copper plays a crucial role in resin-based braking materials.Developing high-performance braking materials with-out copper has become a significant challenge.In this paper,the resin-based braking materials were filled with fly-ash cenospheres to develop copper-free braking materials.The effects of fly-ash cenospheres on the physical properties,mechanical and friction and wear properties of braking materials were studied.Furthermore,the wear mechanism of copper-free resin-based braking materials filled with fly-ash cenospheres was discussed.The results indicate that the inclusion of fly-ash cenospheres in the braking materials improved their thermal stability,hard-ness and impact strength,reduced their density,effectively increased the friction coefficient at medium and high temperatures,and enhanced the heat-fade resistance of the braking materials.The inclusion of fly-ash cenospheres contributed to the formation of surface friction film during the friction process of the braking materials,and facilitated the transition of form from abrasive wear to adhesive wear.At 100-350 ℃,the friction coefficient of the optimal for-mulation is in the range of 0.57-0.61,and the wear rate is in the range(0.29-0.65)× 10-7cm3·N-1·m-1,demonstrating excellent resistance to heat-fade and stability in friction coefficient.This research proposes the use of fly-ash ceno-spheres as a substitute for environmentally harmful and expensive copper in brake materials,which not only improves the performance of braking materials but also reduces their costs.
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| GB/T 7714 | Kaikui Zheng , Youxi Lin , Shanmin You et al. Copper-Free Resin-Based Braking Materials:A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites [J]. | 中国机械工程学报 , 2024 , 37 (2) : 401-412 . |
| MLA | Kaikui Zheng et al. "Copper-Free Resin-Based Braking Materials:A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites" . | 中国机械工程学报 37 . 2 (2024) : 401-412 . |
| APA | Kaikui Zheng , Youxi Lin , Shanmin You , Zhiying Ren , Jianmeng Huang . Copper-Free Resin-Based Braking Materials:A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites . | 中国机械工程学报 , 2024 , 37 (2) , 401-412 . |
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Abstract ：
针对单一减振材料无法兼具高阻尼与高刚度的弊端，本工作提出了一种新的复合材料，即将三维空间网状结构的金属橡胶(EMWM)作为基体，聚氨酯(PU)作为增强体，并采用真空渗流的方式制备了具有高阻尼与高刚度的金属橡胶-聚氨酯(EMWM-PU)复合材料。通过EMWM与EMWM-PU复合材料的准静态压缩试验，发现界面摩擦的引入使得EMWM-PU复合材料的耗能与刚度特性得到显著提升。此外搭建了复合材料管路减振测试平台，以平均振动加速度级和插入损失作为评价指标，研究了EMWM密度、激振量级、安装时的预紧间距对管路减振性能的影响。结果表明，EMWM-PU复合材料在5～1 000 Hz频段范围内均具有优异的减振效果，且复合材料中基体材料EMEM的密度越小、安装时的预紧间距越大，减振效果越好。本研究有效拓宽了复合材料的应用范围，也为金属橡胶复合材料的设计和应用提供了有效的指导。
Keyword ：
力学性能 力学性能 复合材料 复合材料 管路减振 管路减振 聚氨酯 聚氨酯 金属橡胶 金属橡胶
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| GB/T 7714 | 郑孝源 , 任志英 , 吴乙万 et al. 金属橡胶-聚氨酯复合材料减振性能研究 [J]. | 材料导报 , 2024 , 38 (06) : 273-279 . |
| MLA | 郑孝源 et al. "金属橡胶-聚氨酯复合材料减振性能研究" . | 材料导报 38 . 06 (2024) : 273-279 . |
| APA | 郑孝源 , 任志英 , 吴乙万 , 白鸿柏 , 黄健萌 , 谭桂斌 . 金属橡胶-聚氨酯复合材料减振性能研究 . | 材料导报 , 2024 , 38 (06) , 273-279 . |
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Abstract ：
Copper particles emitted from braking have become a significant source of environmental pollution. However, copper plays a crucial role in resin-based braking materials. Developing high-performance braking materials without copper has become a significant challenge. In this paper, the resin-based braking materials were filled with fly-ash cenospheres to develop copper-free braking materials. The effects of fly-ash cenospheres on the physical properties, mechanical and friction and wear properties of braking materials were studied. Furthermore, the wear mechanism of copper-free resin-based braking materials filled with fly-ash cenospheres was discussed. The results indicate that the inclusion of fly-ash cenospheres in the braking materials improved their thermal stability, hardness and impact strength, reduced their density, effectively increased the friction coefficient at medium and high temperatures, and enhanced the heat-fade resistance of the braking materials. The inclusion of fly-ash cenospheres contributed to the formation of surface friction film during the friction process of the braking materials, and facilitated the transition of form from abrasive wear to adhesive wear. At 100-350 celcius, the friction coefficient of the optimal formulation is in the range of 0.57-0.61, and the wear rate is in the range (0.29-0.65) x 10-7 cm3 center dot N-1 center dot m-1, demonstrating excellent resistance to heat-fade and stability in friction coefficient. This research proposes the use of fly-ash cenospheres as a substitute for environmentally harmful and expensive copper in brake materials, which not only improves the performance of braking materials but also reduces their costs.
Keyword ：
Braking materials Braking materials Fly-ash cenospheres Fly-ash cenospheres Friction and wear Friction and wear Heat-fade resistance Heat-fade resistance Wear form Wear form
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| GB/T 7714 | Zheng, Kaikui , Lin, Youxi , You, Shanmin et al. Copper-Free Resin-Based Braking Materials: A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites [J]. | CHINESE JOURNAL OF MECHANICAL ENGINEERING , 2024 , 37 (1) . |
| MLA | Zheng, Kaikui et al. "Copper-Free Resin-Based Braking Materials: A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites" . | CHINESE JOURNAL OF MECHANICAL ENGINEERING 37 . 1 (2024) . |
| APA | Zheng, Kaikui , Lin, Youxi , You, Shanmin , Ren, Zhiying , Huang, Jianmeng . Copper-Free Resin-Based Braking Materials: A New Approach for Substituting Copper with Fly-Ash Cenospheres in Composites . | CHINESE JOURNAL OF MECHANICAL ENGINEERING , 2024 , 37 (1) . |
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Metal rubber (MR) is a damping material with a space-disordered network interpenetrating structure. The fretting wear and fracture of its internal spiral turn caused by mutual extrusion and friction are the main reasons for its fatigue failure. However, the research on fretting wear of metal wire with curvature inside metal rubber is rarely reported, and the influence of curvature on the fretting wear of spiral metal wire is unclear. In order to deeply explore the fretting wear characteristics of metal wires with curvature, the fretting wear evolution model of metal wires with curvature was deduced and constructed in this work. Combined with finite element simulation and tribological test, the difference of fretting wear between metal wire with curvature and metal wire without curvature was analyzed. The results show that the fretting wear model of metal wire with curvature can accurately predict the wear degree of metal wire with curvature. The prediction accuracy error is within 10% under all working conditions. There are apparent differences between the metal wire with curvature and the metal wire without curvature under the same working conditions. In particular, when the metal wire contacts at a slight angle, the difference in the wear degree between them is extensive, and the error decreases with the increase of contact angle. The fretting wear evolution model of metal wire with curvature is more suitable for predicting fretting wear of metal wire contact pairs, which abound in MR in the form of low contact angle and high curvature.
Keyword ：
Curvature Curvature Fretting wear Fretting wear Metal rubber Metal rubber Wear evolution model Wear evolution model
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| GB/T 7714 | Li, Hongyin , Ren, Zhiying , Su, Xingliang et al. Study on the Fretting Wear Evolution Model of Wires with Curvature Inside Metal Rubber [J]. | TRIBOLOGY LETTERS , 2023 , 71 (1) . |
| MLA | Li, Hongyin et al. "Study on the Fretting Wear Evolution Model of Wires with Curvature Inside Metal Rubber" . | TRIBOLOGY LETTERS 71 . 1 (2023) . |
| APA | Li, Hongyin , Ren, Zhiying , Su, Xingliang , Shen, Liangliang , Huang, Jianmeng . Study on the Fretting Wear Evolution Model of Wires with Curvature Inside Metal Rubber . | TRIBOLOGY LETTERS , 2023 , 71 (1) . |
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目前金属丝微动磨损预测模型多适用于垂直接触,而锐角交叉下的模型存在计算过程繁琐、表征不全面等不足,难以便捷有效地预测金属橡胶内部复杂无序的金属丝磨损情况.基于有限元分析,确定螺旋曲率对磨损结果的影响极小,因此将金属橡胶内部螺旋金属丝接触对微元理想化为直金属丝接触对,探究无序接触下金属丝磨损特征的演化规律.结果表明,无序接触状态下的磨损特征演化规律与金属丝接触夹角大小密切相关.依据几何学分析,得到任意锐角接触下磨损磨痕位于金属丝1/2接触夹角处的特殊位置关系,据此建立任意接触形态下的微动磨损演化预测模型,并利用已有文献中的金属丝微动磨损试验结果对预测模型进行验证.结果显示,建立的任意锐角下的磨损演化模型能够较准确地预测金属丝的磨损结果,误差均在15％以内.研究结果为预测金属橡胶内部金属丝微动磨损和使用寿命提供一定理论基础.
Keyword ：
使用寿命 使用寿命 微动磨损 微动磨损 磨损预测 磨损预测 细金属丝 细金属丝 金属橡胶 金属橡胶
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| GB/T 7714 | 肖笃平 , 任志英 , 黄健萌 et al. 金属橡胶内螺旋金属丝微动磨损预测模型研究 [J]. | 润滑与密封 , 2023 , 48 (1) : 56-65 . |
| MLA | 肖笃平 et al. "金属橡胶内螺旋金属丝微动磨损预测模型研究" . | 润滑与密封 48 . 1 (2023) : 56-65 . |
| APA | 肖笃平 , 任志英 , 黄健萌 , 黎洪银 , 路纯红 , 王秦伟 . 金属橡胶内螺旋金属丝微动磨损预测模型研究 . | 润滑与密封 , 2023 , 48 (1) , 56-65 . |
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Switching hydraulic inertial systems (SIHS) manipulate the interaction of inertial and capacitive components through switching valves to achieve the efficient and rapid pressure regulation. However, the opening and closing of the switching valve lead to fluid expansion and compression in the switched volume, which generates throttling losses in the switching valve transition cycle, resulting in substantial energy loss. Hydraulic soft switching is an essential means to solve the loss of switching valves. However, the poor resonance performance of the hydraulic system leads to arduousness in the soft switching design. Therefore, this paper proposes that a mechanical-hydraulic coupling mechanism can realize the soft switching. A new approach is proposed to realize soft switching with a parallel double-motor mechanism based on the new idea. The approach connects inertive elements, at the back, to the switching valve to suppress the sudden flow increase caused by the compressed fluid in the switched volume during the opening transition stage of the switching valve, thus effectively reducing the loss caused by the throttling flow of the switching valve. The new approach has been experimentally verified to reduce the throttling flow by 33%, resulting in an increase of the SIHS output efficiency by 10%-15%.
Keyword ：
Energy efficient Energy efficient Hydraulic transformer Hydraulic transformer Soft switching Soft switching Switched inertance hydraulic systems Switched inertance hydraulic systems
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| GB/T 7714 | Zeng, Liwen , Du, Heng , Ye, Xujun et al. Research and experiments on low throttle loss switched inertance hydraulic systems based on inertive elements [J]. | ENERGY , 2023 , 283 . |
| MLA | Zeng, Liwen et al. "Research and experiments on low throttle loss switched inertance hydraulic systems based on inertive elements" . | ENERGY 283 (2023) . |
| APA | Zeng, Liwen , Du, Heng , Ye, Xujun , Huang, Jianmeng , Chen, Chaofan , Chen, Xin et al. Research and experiments on low throttle loss switched inertance hydraulic systems based on inertive elements . | ENERGY , 2023 , 283 . |
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Metal rubber (MR) is a porous material which possesses macroscopic damping properties through the dry friction between the internal helical metal wires. Due to its complex topological structure, the research on the fretting wear of MR is rarely reported in the literature. In the present work, a double-body wear model of metal filaments is constructed by the master-slave composite method. The friction and wear conditions of the dynamic and static metal wires inside the MR are analyzed under different contact angles, loads, and vibration amplitudes. The results indicate that the wear area and volume of the dynamic wire under each working condition are significantly larger than those of the static wire, while the case for the wear depth is the opposite. After wear, the wires exhibit an obvious stress concentration phenomenon, which is distributed along the wire wear contour area, and the wear profile has a high sensitivity to the contact angle. In order to further investigate the difference in the wear degree of the static and dynamic wires inside the MR, the fretting amplitude is introduced to describe the wear scar area of the dynamic wire, the special wear scar area is reorganized regularly, and the wear volume of the wire is approximated by the regional combination, deriving and constructing a fretting wear evolution model suitable for MR wires. This evolution model can simultaneously predict the wear degree of dynamic and static wires, and its prediction accuracy is high. The prediction accuracy under each working condition is basically less than 10%; thus, the proposed model can be effectively applied to the fretting wear prediction of MR ultra-fine wire contact pairs. This work provides theoretical guidance for the life prediction and other aspects of MR materials.
Keyword ：
Double -body fretting wear Double -body fretting wear dry friction dry friction MR MR Umeshmotion Umeshmotion Wear evolution model Wear evolution model
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| GB/T 7714 | Li, Hongyin , Ren, Zhiying , Huang, Jianmeng et al. Fretting wear evolution model of the metal filaments inside metal rubber [J]. | WEAR , 2022 , 506 . |
| MLA | Li, Hongyin et al. "Fretting wear evolution model of the metal filaments inside metal rubber" . | WEAR 506 (2022) . |
| APA | Li, Hongyin , Ren, Zhiying , Huang, Jianmeng , Zhong, Shuncong . Fretting wear evolution model of the metal filaments inside metal rubber . | WEAR , 2022 , 506 . |
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针对目前路径规划方法存在的平滑性和效率问题,在JPS算法基础上提出了兼顾平滑性与搜索效率的路径规划方法,并利用多项式进行了轨迹优化。首先,提出2个优化目标对路径序列进行优化处理;然后,对JPS搜索规则进行改进,得到更多有价值的路径,并对每条路径进行平滑处理,再以一定规则进行选择;最后,使用多段高阶多项式对所得路径进行轨迹优化,研究时间分配问题,从而加快迭代效率。通过仿真实验和与其他算法的对比证明了本文方法的可行性和有效性。结果表明,在不同障碍物密度环境下,本文路径规划方法得到了平滑性良好的路径,相对平滑后处理JPS,长度减少了0.48%～1.80%,总转折角减少了16.93%～52.75%,利...
Keyword ：
JPS算法 JPS算法 Lazy-Theta~*算法 Lazy-Theta~*算法 移动机器人 移动机器人 路径规划 路径规划 轨迹优化 轨迹优化
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| GB/T 7714 | 黄健萌 , 吴宇雄 , 林谢昭 . 移动机器人平滑JPS路径规划与轨迹优化方法 [J]. | 农业机械学报 , 2021 , 52 (02) : 21-29,121 . |
| MLA | 黄健萌 et al. "移动机器人平滑JPS路径规划与轨迹优化方法" . | 农业机械学报 52 . 02 (2021) : 21-29,121 . |
| APA | 黄健萌 , 吴宇雄 , 林谢昭 . 移动机器人平滑JPS路径规划与轨迹优化方法 . | 农业机械学报 , 2021 , 52 (02) , 21-29,121 . |
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Abstract ：
针对目前路径规划方法存在的平滑性和效率问题,在JPS算法基础上提出了兼顾平滑性与搜索效率的路径规划方法,并利用多项式进行了轨迹优化.首先,提出2个优化目标对路径序列进行优化处理;然后,对JPS搜索规则进行改进,得到更多有价值的路径,并对每条路径进行平滑处理,再以一定规则进行选择;最后,使用多段高阶多项式对所得路径进行轨迹优化,研究时间分配问题,从而加快迭代效率.通过仿真实验和与其他算法的对比证明了本文方法的可行性和有效性.结果 表明,在不同障碍物密度环境下,本文路径规划方法得到了平滑性良好的路径,相对平滑后处理JPS,长度减少了0.48％～1.80％,总转折角减少了16.93％～52.75％,利用余弦函数进行时间分配加快了轨迹优化的迭代效率,通过实验验证得到了良好的效果.
Keyword ：
JPS算法 JPS算法 Lazy-Theta*算法 Lazy-Theta*算法 移动机器人 移动机器人 路径规划 路径规划 轨迹优化 轨迹优化
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| GB/T 7714 | 黄健萌 , 吴宇雄 , 林谢昭 . 移动机器人平滑JPS路径规划与轨迹优化方法 [J]. | 农业机械学报 , 2021 , 52 (2) : 21-29,121 . |
| MLA | 黄健萌 et al. "移动机器人平滑JPS路径规划与轨迹优化方法" . | 农业机械学报 52 . 2 (2021) : 21-29,121 . |
| APA | 黄健萌 , 吴宇雄 , 林谢昭 . 移动机器人平滑JPS路径规划与轨迹优化方法 . | 农业机械学报 , 2021 , 52 (2) , 21-29,121 . |
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