| 1. | In plane vibration
面内振动 |
| 2. | In linear potential theory regime , a problem on the oscillations of the harbours of arbitrary shape and constant depth in open ocean was analyzed
摘要利用线性势流理论对定常水深且置于广阔海域中的任意形状港湾在入射波作用下的港内振动进行了研究。 |
| 3. | The phenomenon of heavy turbine vibration which causes vibration of the workshop or even that of the dam in some hydroelectric power stations in china is presented
摘要介绍了我国水电站混流式机组厂房某些工作区域内振动过大的现象，并不同程度地引起水电站厂房甚至大坝的振动。 |
| 4. | The intramolecular vibrational redistribution ( ivr ) and the ultrafast solvent inertial relaxation should account for the faster decay , while the slower decay is attributed to the diffusive solvent relaxation
快速弛豫过程来源于分子内振动能量再分配( ivr )和溶剂分子超快惯性弛豫动力学过程，而慢速弛豫过程对应于溶剂化的扩散分子弛豫动力学过程。 |
| 5. | The capacity and size of modern hydrogenerator set are larger with rapid developing of hydroelectric engineering , specific speed of hydraulic turbine increase too . the phenomenon of excessive vibration in some load area is founded ubiquitously
随着水电工程建设的高速发展，现代水轮发电机组的容量和尺寸日趋增大，比转速也相应提高，普遍出现在某些工作区域内振动过大的现象。 |
| 6. | Based on the transient response , the control effectiveness of the visco - elastic dampers is further demonstrated . according to the lqr optimal control theory , clipped - optimal control arithmetic , and the modified bouc - wen model of the mr dampers , the lqr - clipped semi - active control is proposed . the passive , active , and semi - active control of the cables are analyzed by using the difference discretization model of the cable - dampers system
结合lqr最优控制理论、面向速度剪切( clipped - optimal )控制算法及修正的磁流变( nr )阻尼器bouc - wen模型，创新地提出了lqr - clipped半主动控制算法，应用拉索振动的差分离散模型，对斜拉索的面内振动进行了被动、主动及半主动控制研究，分析了mr阻尼器对斜拉索的振动控制效果。 |
| 7. | The ratio of story shear rigidity as well as the equivalent lateral rigidity ratio of story above the transfer story to the story under the transfer story should be designed properly to avoid the transfer story becoming weak story , thus the shear walls and the columns in the large base will not yield before the elements above the transfer story ; ( 2 ) the translation - torsion coupled effects and the vibration in the plane should be considered in analysis of structure with large base and muti - towers
转换层的设计除应控制层剪切刚度比外，还应控制转换层上部与下部结构的等效侧向刚度比以避免薄弱层出现在框支层，保证地震作用下落地剪力墙和框支柱不先于转换层上部结构进入屈服状态；大底盘多塔楼结构的分析必须考虑平扭耦联振动和楼板平面内振动的影响。 |
| 8. | Based on the mode analysis of the stator of a ultrasonic motor using in - plane bending vibration , three kinds of in - plane vibration modes are obtained , and the influence of the motors structural parameters on its modal frequencies are discussed . some helpful conclusions are given , which provide theoretical basis for the design of this type of motor
运用有限元方法对利用平面内弯曲模态超声电机定子进行了模态分析，获得了三种不同类型的面内振动模态，并讨论了电机结构参数对其模态频率的影响，在此基础上得到了一些有益的结论，为利用平面内旋转模态设计超声电机定子提供了理论依据。 |
| 9. | Abstract : based on the mode analysis of the stator of a ultrasonic motor using in - plane bending vibration , three kinds of in - plane vibration modes are obtained , and the influence of the motor ' s structural parameters on its modal frequencies are discussed . some helpful conclusions are given , which provide theoretical basis for the design of this type of motor
文摘:运用有限元方法对利用平面内弯曲模态超声电机定子进行了模态分析，获得了三种不同类型的面内振动模态，并讨论了电机结构参数对其模态频率的影响，在此基础上得到了一些有益的结论，为利用平面内旋转模态设计超声电机定子提供了理论依据。 |
| 10. | It is analyzed that the values of external excitation , the internal damping of the shaft and the depth of the crack have effects on the amplitude frequency response curves . in chapter 5 , the bifurcation and chao s of a rotor system are studied . the bifurcation parameter sets of the motion equation are determined by using the theoretical method
从理论上确定了在垂直平面内振动的裂纹转子运动方程的分叉参数集，且用数值方法验证了理论分析的正确性，同时，还利用melnikov函数法给出了系统发生混沌运动的临界条件，最后，利用数值方法研究了考虑涡动影响的转子系统的动力特性。 |
