| 1. | In the laser this damping mechanism can be visualized as follows . 在激光器中,这种阻尼机理可以如下理解。 |
| 2. | Study on damp mechanism of eddy acceleration geophone 涡流检波器阻尼机理研究 |
| 3. | The text is mainly about the damping mechanism of polymer base piezoelectricity intellectual damping materials 摘要综述了聚合物基压电智能阻尼材料的阻尼机理。 |
| 4. | The damping coefficient of the laminated composites is more than twice that of ly12 aluminum alloy . furthermore , the damping coefficient of laminated composite is enhanced with the increasing of thickness of fiber / resin layer . the vibration damping mechanism is analyzed 研究了不同纤维树脂层厚度时叠层复合材料的阻尼性能,发现随中间层厚度的增加,叠层复合材料的振动衰减系数增加,并分析其振动衰减机制。 |
| 5. | Significance of some measures to improve the application of computer simulation technology in structural seismic analysis , including establishing or upgrading the hysteresis model and multiparameter failure criteria of structural members , studying the damping mechanism of structures during decomposing , discussing the application of database technology in simulation system , developing analysis models for innovating structures and algorithms for analysis of earthquake responses of structures with initial damage , and introducing parallel technology is pointed out 指出建立或完善构件层次的滞回本构模型和多参数破坏准则,研究结构解体前后的阻尼机制,探讨数据库技术在仿真系统中的应用,发展新型结构体系的分析模型以及具有初始损伤结构的地震反应分析方法,引入并行计算技术等对推动计算机仿真技术在结构抗震分析中的应用具有重要的意义。 |
| 6. | Based on the analysis of damping mechanism , damping ratio data of building materials , buildings and building models , it is concluded that the main factors of damping performance of building are strength of concrete , percentages of longitudinal steel , structure configuration and deformation amplitude 通过对建筑物阻尼机理、建筑材料、建筑物和建筑模型阻尼性能试验数据的分析,本文对混凝土强度、纵向配筋率、结构形式和结构变形大小等建筑阻尼性能的主要影响因素进行了分析。 |
| 7. | As the demand of low weight and high strength for high damping alloys , the composition of aluminum alloys was determined as al - 20 % zn - 6 % si - 0 . 4 % mg ( i . e . azsm ) by the orthogonal experiments . furthermore , effects of alloyed elements , the modifying agents and heat - treatment on microstructures , damping capacities and mechanical properties of the azsm alloy were studied . finally , the damping mechanism of the azsm alloy was proposed 根据对高阻尼合金轻质高强的要求,采用正交试验法确定了具有良好阻尼性能的铝合金的成分为al - 20 zn - 6 si - 0 . 4 mg (下称azsm合金) ;探讨了合金化、变质和不同热处理工艺对azsm合金组织、阻尼性能和力学性能的影响;最后提出了azsm合金的室温阻尼机制。 |
| 8. | 0 x 10 " 3 and 264 . 6mpa respectively . 6 . the damping mechanism at ambient temperature is related to viscous motion of dislocation and interactions between dislocation with various point defects , the viscous sliding between the phase with rich zn and primary a dendrite crystals and the micro - plastic deformation of the soft phase in the eutectic 6 ) azsm合金的室温阻尼行为与组织中的溶质原子和位错的交互作用以及位错的粘性运动、富锌相与基体之间的粘性滑移、以及共晶体中较软相的西安理工大学硕士学位论文微塑性变形有关。 |
| 9. | ( 2 ) the damping mechanism of multi - energy transitions takes effect when the vgcf content is among the semi - conductive area . when the vgcf content is low ( below 8 % ) , the vgcf conductive circuit does not form and the heat loss is quite little . when the vgcf content is higher than 20 % , the transition efficiency between electric energy and heat is limited 这是由于当vgcf含量太少时(低于8 ) ,复合材料中导电网络还没有来得及形成,起不到能量损耗的目的;而当vgcf含量太高时(高于20 ) ,电导率太高,复合材料成为电的良导体,电能与热能之间的转换效率很低,能量损耗也不高。 |
| 10. | This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions , which is independent or little dependant with the viscoelasticity of polymer matrix . three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2 , 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe . in this system , the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix , so the vibration fades away 本论文主要包括三个方面的研究内容: ?氯化聚乙烯( cpe ) /压电陶瓷( pzt ) /气相生长碳纤维( vgcf )复合材料; ? cpe /双[ ( 2 -羟基- 3 -环己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf复合材料; ? cpe基有机小分子混杂型复合材料cpe / pzt / vgcf减振复合材料:利用压电和导电填料填充高聚物基体,当复合材料受到机械振动时,通过高聚物基体将机械振动能传递到压电陶瓷粒子上,利用压电陶瓷的压电效应,将机械能转换成电能,则电流在导电粒子产生的回路中流动,由于导电回路具有一定的电阻,所以电能又转变成热能耗散掉,从而起到减振的目的。 |