| 1. | Damping materials - testing method for damping properties 阻尼材料阻尼性能测试方法 |
| 2. | Nomenclature for specifying damping properties of materials 材料阻尼特性术语 |
| 3. | Acoustics - flexural resonance testing method for damping properties of acoustical materials 声学声学材料阻尼性能的弯曲共振测试方法 |
| 4. | Test method for damping capacity of metallic damping materials - torsion pendulum method and flexural resonance method 金属阻尼材料阻尼本领试验方法扭摆法和弯曲共振法 |
| 5. | The pile is assumed to be vertical , elastic and of variable impedance , and the soil is layered and with viscous damping 假定桩为竖直弹性变阻抗体,土为成层线性粘弹性体,其材料阻尼为粘性阻尼。 |
| 6. | The pile is assumed to be vertical , elastic and of uniform cross - section , and the soil is regarded as a linear visco - elastic layer with hysteretic damping 假定桩为竖直弹性等截面体,土为线性粘弹性体,其材料阻尼为滞回阻尼。 |
| 7. | It indicates that viscous damping of soil layer shows a clear different effect on dynamic response at pile head comparing to hysteretic damping 研究表明,对于桩顶响应,桩侧土的粘性材料阻尼呈现出与滞回阻尼明显不同的影响特点。 |
| 8. | Based on these solutions , a parametric study is conducted to determine the main features of the soil - pile system vibration , and the special influence of viscous damping of soil layer around pile is discussed 基于所得解对桩土动力耦合作用的内在机理、粘弹性土层动力反应特性进行了分析,并重点讨论了桩侧土不同形式材料阻尼对桩顶动力响应的影响。 |
| 9. | 3 . based on the above solutions , the influences of soil parameters in different visco - elastic model and viscosity of pile material on vibration characteristics and time domain response of pile are analyzed in detail 3 、基于所得解,详细分析了各种模型下有关土工参数对桩的振动特性及时域响应曲线的影响规律,并研究了桩材料阻尼及土层性质差异等的影响。 |
| 10. | Over a 100 to 270 temperature range , the damping capacities are ranked from great to small as follows : sample cooled in furnace , sample cooled in the air , sample quenched at - 70 ( sample quenched at - 195 ) and sample quenched in water 在100 270范围内,不同热处理态材料阻尼能力的大小以次为:其炉冷空冷70淬火- 195淬火水淬。超过270 ,由于阻尼性能测试出现第二个内耗峰,不同热处理态试样阻尼性能的大小没有明显的规律性。 |