| 1. | Natural frequency of foundation
动力机器基础基础自振频率 |
| 2. | Research on influencing of crack to natural vibration frequency of brief - beam
开裂对简支梁自振频率影响研究 |
| 3. | Natural frequency of vibrationhz
自振频率hz |
| 4. | The natural vibration frequency analysis of suspended cables under a concentrated load
集中荷载作用下的悬索自振频率分析 |
| 5. | Analysis of calculating method of the natural frequency of bridge pier supported by pile foundation
桩基桥墩自振频率计算方法的分析 |
| 6. | In this essay , the answer to natural frequency of vibration and periodic time will given in the response spectrum method
而本文是通过反应谱法，求解泵站的自振频率、周期。 |
| 7. | Application of bridge self vibration frequency inspection in technicalexamination and determination of harbour bridge in dalian port
桥梁自振频率检测在大连港港湾桥技术检定中的应用 |
| 8. | The paper points out that the natural vibration frequency of strings can not be used to that of suspension cables
指出工程实际中不能将弦线的自振频率作为有集中荷载作用的悬索的自振频率。 |
| 9. | As a design method , frequency tuning approach ( fta ) was suggested to be used first to avoid critical frequency ranges
建议人行桥梁设计时应首先采用频率调整法，使结构自振频率尽量不落在敏感频率范围内。 |
| 10. | The substructural technique is employed to parameters identification of frame , natural frequencies and generalized mode shapes of frame are computed
本文把动态子结构方法引入框架结构参数识别中，算出结构的自振频率和广义振型。 |
