The experiment results show that the damping capacity of deformed Martensite first decreases sharply and then keep constant with the increase of frequency at the low strain amplitude; 结果表明,当应变振幅较低时,形变马氏体的阻尼值随频率的增加先急剧下降至一定值后趋于稳定;
Effects of Rubber Particles Treated Surface on Concrete Damping Capacity 表面处理的橡胶颗粒对混凝土阻尼性能的影响
Effect of Rolling Process on Damping Capacity and Mechanical Properties of Mg-3% Al Alloy 轧制变形对Mg-3%Al合金阻尼性能和力学性能的影响
The permanent-magnet adjustable magnetorheological damper has the advantages of no power source and adjustable damping capacity. 永磁调节式磁流变阻尼器具有不需电源和阻尼力可调的优点。
The porous Mg exhibits a higher damping capacity, a longer and lower stress plateau than porous Al, suggesting more superior energy absorption and damping properties. 多孔镁具有更高的阻尼本领、更平坦的压缩应力-应变平台,在冲击能吸收结构中应用应更具有优势。
Based on an analysis of vibration and damping capacity, a sonic testing instrument for the measurement of bomb chamber volume is developed. 介绍一种弹体药室容积在线检测的新方法,提供了一种电子技术与单片机系统相结合的音频信号处理系统。
For the sake of damping capacity improvement, we propose to develop non-circular section wire metal rubber, and we manufactured test samples. 为了使这种材料具有更好的阻尼性能,本文提出了研制非圆截面丝金属橡胶,并制备出了试件。
Effects of alloying on damping capacity of Cu-Zn-Al alloy at low-frequency 合金化对CuZnAl合金低频阻尼性能的影响
The magnetomechanical damping capacity of Tb-Dy-Fe compound is strongly sensitive to the stress magnitude as well as the external magnetic fields. 依据局部内应力理论,解释了合金棒的磁机械阻尼系数随外磁场强度和应力幅值变化的规律。
Effect of Nanoscale Silica Fume and Carbon Nanotube on Damping Capacity of Cement-based Composite 纳米级硅灰及碳管对水泥基材料减振性能的影响
Damping Capacity of SiC Particulate Reinforced Mg-Zn-Zr Composites SiC颗粒增强镁-锌-锆基复合材料的阻尼性能
Influences of Microstructure on Damping Capacity of the Magnesium Alloys 微观组织结构对镁合金阻尼性能的影响
Vibration Damping Capacity and Prospect of Magnesium Alloy as Hand Tools Parts 手持工具镁合金零部件阻尼性能分析
The effect of pore structure ( pore diameter, porosity) on the damping capacity of compound has also been studied, and the results are discussed. 同时研究了泡沫金属孔隙结构对复合体内耗值的影响关系,并对实验结果进行了讨论。
Effect of pre-deformation on stacking fault probability and damping capacity of Fe-Mn alloy 预变形对Fe-Mn合金层错几率和阻尼性能的影响
Alternating magnetic filed can affect obviously the damping capacity of alloys. 结合测试温度,研究了外加交流磁场对合金阻尼性能的影响。
Effect of trace Sc and Zr on microstructure and damping capacity of Zn-22% Al alloy 微量Sc和Zr对锌铝共析合金微观结构和阻尼性能的影响
Due to multi-damping mechanics, magnesium based composites have higher damping capacity. 镁基复合材料较镁合金有较高的阻尼性能,是由于增加了多种阻尼机制的结果,其中最重要的是塑性区阻尼、位错密度的增大、界面滑移阻尼等。
In fiber reinforced magnesium matrix composites, a special interfacial layer was obtained by coating a pyrocarbon on the surface of fibers, and then, the damping capacity of the composites was studied. 纤维增强的镁基复合材料中,通过在纤维表面沉积一层热解碳而获得了一种特殊的界面层,研究了该复合材料的阻尼性能。
The three point bending mode, tensile test and Archimedes method were used to evaluate the damping capacity, tensile properties and density of these composites, respectively. 运用三点弯曲法、拉伸试验和阿基米德法分别测试了其阻尼性能、拉伸性能和密度。
The formulations for calculating the stiffness coefficients and specific damping capacity are derived. 基于层合板类推法和能量耗散原理,导出了此类构件的各种刚度系数和比阻尼容量计算公式。
Considering the applications, this paper explores the damping capacity of Fe-Cr-Mo alloys at room temperature and at high temperature. 本论文结合实际的工程应用背景,以Fe-Cr-Al-Si合金为对比研究的参考对象,研究了Fe-Cr-Mo合金的常温和高温阻尼性能,分析了热处理条件对合金阻尼性能的影响。
To minimize the effects of vibration and noise in service environment on the stability of C/ SiC components, it's necessary to investigate the damping capacity of C/ SiC composites; nevertheless, there have been few reports on this area. 为了降低服役环境中严重的振动和噪音问题对C/SiC复合材料构件稳定性的影响,必须对C/SiC复合材料的阻尼性能进行研究,但目前国内外鲜有这方面的报道。
The main factors which affect damping capacity of the composites are dislocations damping and interfaces damping. 复合材料阻尼性能提高的主要机制是位错阻尼和界面阻尼。
The damping capacity in cast condition is dependent on strain amplitude, and it increases with its enhancement. 铸态合金的阻尼性能与应变振幅有关,随着应变振幅的提高而不断提高;
The new theory of multiobjective optimization design of anti seismic structures with considering damping capacity is studied in this paper. The objective functions are structural strain energy and structural cost. 利用抗震结构的多目标优化设计理论,考虑阻尼力对结构影响,对钢筋混凝土结构造价最低和结构应变能最大的两个目标函数进行优化设计。
The thermal expansion behavior was examined by dilatometer ( DIL) and the damping capacity was evaluated by dynamic mechanical analysis ( DMA). 采用热膨胀仪(DIL)和动态机械分析仪(DMA)对材料的热膨胀性能和阻尼性能进行了测定。
The results show that extrusion significantly improved the mechanical properties but dramatically decreased the damping capacity of as-cast alloys. 结果表明:热挤压大幅提高合金力学性能,但却显著降低阻尼性能。