| 1. | The mechanism of vibration reduction and support characteristics are analyzed and a friction damper is designed
分析了该支承的减振机理和支承特性，设计了摩擦阻尼器，研究了其对转子系统不平衡响应的影响。 |
| 2. | According to the results of test , the dissipation mechanism of friction - viscoelastic damper ( f - ved ) is studied and its theoretical hysteretic curve is obtained
摩擦阻尼器的耗能机理进行了研究，并在理论上获得了它的滞回曲线。 |
| 3. | By changing these parameters and the z - directional stiffness of the outer - ring , the stiffness and the damping characteristic of the damper can be varied
在转子系统支承中引入摩擦阻尼器能够降低支承刚度，从而降低系统的临界转速，避开工作转速。 |
| 4. | Dynamic characteristic of various dampers of blades can be analyzed by the numerical model , and it may be usable for optimization of damped blade
分析结果表明，该数值模型可以应用于多种摩擦阻尼器长叶片的振动特性分析及优化设计，将为阻尼叶片的设计提供实用工具。 |
| 5. | ( 4 ) parametric studies for control performance of the sma incorporated friction dampers in long - span canopy roof structures are carried out . by analysis , practical engineering suggestions are presented
( 4 )系统进行了sma复合摩擦阻尼器在挑篷结构中的减振控制参数研究,通过对比分析,给出了实用性的工程建议。 |
| 6. | In this thesis , the behavior of sma incorporated friction dampers is studied through experiments . and the vibration control theory and control effectiveness of the dampers in long - span canopy roof structures are studied
本文在sma复合摩擦阻尼器理论模型的基础上,对sma复合摩擦阻尼器进行了试验研究和参数影响分析,并研究探讨了其在大跨度挑篷结构中的减振控制理论与控制效果。 |
| 7. | Based on the structural feature of long blade with friction damper , pretwist beam element and space straight beam element were adopted to discrete the blade , and the numerical model of damper link element was established , then the gross finite element motion equation of the blade was obtained
针对带摩擦阻尼器长叶片的结构特点，采用扭曲梁与空间直梁单元模化叶片，推导叶片阻尼连接单元的力学模型，由此建立叶片总的动力特性分析方程。 |
| 8. | Firstly , the dynamical performance of friction damper ( frd ) and viscoelactic damper ( ved ) is tested in this paper . the work , which gets the rules that the two dampers " hysteretic curve and performance - parameters change follows the changing of excitement , lays the foundation for designing new kind of edd
论文首先进行了摩擦阻尼器和粘弹性阻尼器的动力性能试验，获得了两种阻尼器的滞回曲线和性能参数随激励性质变化的规律，为进一步开发新型的耗能阻尼器提供了基础。 |
| 9. | Through the research , following achievements have been made : ( 1 ) a detailed experimented study has been carried out to investigate the performance of the sma incorporated friction dampers . the effects of displacement amplitude and frequency are taken into account in experiments . good agreement between theoretical and experimental results is obtained
通过研究主要取得如下成果: ( 1 )首次进行了sma复合摩擦阻尼器的性能试验研究,根据试验结果分析了位移幅值、加载频率等对阻尼器的等效刚度、单位循环耗能和等效阻尼比的影响,并与理论分析结果进行了对比分析,两者吻合较好。 |
| 10. | Special - shaped column frame , its seismic behavior is studied and a new dissipating - seismic - energy structure , r . c . special - shaped column frame with viscoelastic friction damper ( f - ved ) is proposed and studied . a three - dimension solid element model is established for a special - shaped column frame to study its seismic behavior and time history responses under earthquake , some conclusion is drawn about its characteristics of force and displacement under horizontal earthquake action
为了进一步推广和扩大异型柱框架结构的应用范围，本文对异型柱框架结构在水平地震作用下的受力特点和抗震性能进行了研究，并提出在异型柱框架中设置粘弹性?摩擦阻尼器( viscoelastic - frictiondamper ，简称f - ved ) ，对其进行了水平地震作用下的减震控制研究。 |
