|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Performance Investigation of Cone Dielectric Elastomer Actuator Using Taguchi Method显示文摘Dielectric elastomer actuator (DEA) show promise for mechatronic applications due to the advantages of dielectric elastomer, such as lightweight, flexible, low cost, high strain, etc, and many configurations of DEAs have been demonstrated. As a kind of linear actuator, cone DEAs are studied in some laboratory prototypes due to easy manufacturing, however, their performance have not been exploited fully. Based on the working principle of DEA, a four-bar linkage mechanism is designed to provide negative stiffness preload, which can increase displacement output of actuator (outer diameter 100 mm) to 17 mm. Three cone actuating units are assembled in parallel to enhance the maximum force output to 5.07 N. Loading experiments of actuator in forward and backward strokes are performed, the experimental results show that backward stroke has stronger actuating capability than forward stroke, accordingly application of actuator is recommended. Four factors rather than applied voltage, i.e., number of actuating units, pre-stretch ratio, inner diameter, and outer diameter, are determined as influencing factors for Taguchi method. Then the performance objectives of actuator, i.e., displacement output, maximum force output, and maximum work in backward stroke, are investigated based on L9(34) Taguchi orthogonal design. The mean signal-to-noise (S/N) ratio based on the larger-the-better criterion is calculated according to the acquired displacement and force output. Analytical results show that outer diameter has the most significant influence on displacement output, and maximum force out and work output are influenced most by number of actuating units. Inner diameter also has an important effect on the performance objectives of actuator, while pre-stretch ratio has the least influence. The proposed performance investigation is helpful for the design and application of cone actuator in mechatronic system. | WANG Huaming ZHU Yinglong ZHAO Dongbiao LUAN Yunguang | 2011 | Chinese Journal of Mechanical Engineering2011，24，4： | 11 |
| 2 | Effects of nano-TiO_2 dispersion on thermoelectric properties of Co_4Sb_(11.7)Te_(0.3) composites显示文摘Nano-TiO2/Co4Sb11.7Te0.3 composites were prepared by mechanical alloying (MA) and cold isostatic pressing (CIP) process.The phase composition,microstructure,and thermoelectric properties were characterized.The diffraction spectra of all samples well corresponds to CoSb3 skutterudite diffraction plane.TiO2 agglomerates into irregular clusters.They locate at the grain boundaries or some are distributed on the surface of Co4Sb11.7Te0.3 particles.For composites with high TiO2 content (0.6% and 1.0% TiO2),the phonon scattering by TiO2 particle,pores,and small size grains can result in a remarkable reduction in thermal conductivity.The maximum value of ZT is 0.79 for sample with 0.6 wt.% TiO2 at 700 K,which is 11% higher than that of non-dispersed sample. | Zhu, Yunguang Shen, Honglie Chen, Haili | 2012 | Rare Metals2012，31，1： | 2 |
| 3 | Direct growth of flower-like ~-MnO2 on three-dimensional graphene for high-performance rechargeable Li-O2 batteries 显示文摘 | LIU Shuangyu ZHU Yunguang XIE Jian | 2014 | Advanced Energy Materials2014，4，13： | 1 |
| 4 | Controllable Synthesis of Hollow a-Fe2 O3 Nanostructures, Their Growth Mechanism, and the Morphology-Reserved Conversion to Magnetic Fe3 O4/C Nanocomposites 显示文摘 | HUO Ying ZHU Yunguang XIE Jian | 2013 | RSC Adv2013，3，19： | 1 |
| 5 | Dual redox catalysts for oxygen reduction and evolution reactions:Towards a redox flow Li O2 battery显示文摘 | Zhu Yunguang Jia Chuankun Yang Jing Pan Feng Huang Qizhao Wang Qing | 2015 | Chemical Communications2015，51，46： | 1 |
| 6 | Redox catalysts for aprotic Li-O2 batteries: Toward a redox flow system显示文摘Large-scale electrical energy storage with high energy density and round-trip efficiency is important to the resilience of power grids and the effective use of intermittent renewable energy such as solar and wind.Lithiumoxygen battery,due to its high energy density,is believed to be one of the most promising energy storage systems for the future.However,large overpotentials,poor cycling stability,and degradation of electrolytes and cathodes have been hindering the development of lithium-oxygen batteries.Numerous heterogeneous oxygen electrocatalysts have been investigated to lower the overpotentials and enhance the cycling stability of lithium-oxygen batteries.Unfortunately,the prevailing issues of electrode passivation and clogging remain.Over the past few years,redox mediators were explored as homogenous catalysts to address the issues,while only limited success has been achieved for these soluble catalysts.In conjunction with a flowing electrolyte system,a new redox flow lithium-oxygen battery(RFLOB)has been devised to tackle the aforementioned issues.The working mechanism and schematic processes will be elaborated in this review.In addition,the performance gap of RFLOB with respect to practical requirements will be analysed.With the above,we anticipate RFLOB would be a credible solution for the implementation of lithium-oxygen battery chemistry for the next generation energy storage. | YunGuang Zhu F.W.Thomas Goh Qing Wang | 2019 | Nano Materials Science2019，1，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员